111 files changed, 12399 insertions, 0 deletions
diff --git a/branches/sca-java-20080910/modules/assembly/LICENSE b/branches/sca-java-20080910/modules/assembly/LICENSE
new file mode 100644
index 0000000000..8aa906c321
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/LICENSE
@@ -0,0 +1,205 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
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+      "Licensor" shall mean the copyright owner or entity authorized by
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+      direction or management of such entity, whether by contract or
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+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
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+      including but not limited to software source code, documentation
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+      not limited to compiled object code, generated documentation,
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+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
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+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
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+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
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+      on Your own behalf and on Your sole responsibility, not on behalf
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+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
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+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+
+
diff --git a/branches/sca-java-20080910/modules/assembly/NOTICE b/branches/sca-java-20080910/modules/assembly/NOTICE
new file mode 100644
index 0000000000..fdfa0e9faa
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/NOTICE
@@ -0,0 +1,6 @@
+${pom.name}
+Copyright (c) 2005 - 2008 The Apache Software Foundation
+
+This product includes software developed by
+The Apache Software Foundation (http://www.apache.org/).
+
diff --git a/branches/sca-java-20080910/modules/assembly/pom.xml b/branches/sca-java-20080910/modules/assembly/pom.xml
new file mode 100644
index 0000000000..5257d7ef63
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/pom.xml
@@ -0,0 +1,76 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+-->
+<project>
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.apache.tuscany.sca</groupId>
+        <artifactId>tuscany-modules</artifactId>
+        <version>1.4-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+    <artifactId>tuscany-assembly</artifactId>
+    <name>Apache Tuscany SCA Assembly Model</name>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-policy</artifactId>
+            <version>1.4-SNAPSHOT</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-interface</artifactId>
+            <version>1.4-SNAPSHOT</version>
+        </dependency>
+
+	    <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-definitions</artifactId>
+            <version>1.4-SNAPSHOT</version>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-monitor</artifactId>
+            <version>1.4-SNAPSHOT</version>
+        </dependency>        
+    </dependencies>
+
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.felix</groupId>
+                <artifactId>maven-bundle-plugin</artifactId>
+
+                <configuration>
+                    <instructions>
+                        <Bundle-Version>${tuscany.version}</Bundle-Version>
+                        <Bundle-SymbolicName>org.apache.tuscany.sca.assembly</Bundle-SymbolicName>
+                        <Bundle-Description>${pom.name}</Bundle-Description>
+                        <Export-Package>org.apache.tuscany.sca.assembly*</Export-Package>
+                    </instructions>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/AbstractContract.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/AbstractContract.java
new file mode 100644
index 0000000000..b8487d95c5
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/AbstractContract.java
@@ -0,0 +1,77 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.policy.IntentAttachPoint;
+
+/**
+ * Interface contracts define one or more business functions. These business
+ * functions are provided by services and are used by references.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface AbstractContract extends Base, Extensible, IntentAttachPoint, OperationsConfigurator {
+
+    /**
+     * Returns the name of the contract.
+     * 
+     * @return the name of the contract
+     */
+    String getName();
+
+    /**
+     * Sets the name of the contract.
+     * 
+     * @param name the name of the contract
+     */
+    void setName(String name);
+
+    /**
+     * Returns the interface contract defining the interface and callback
+     * interface for the contract.
+     * 
+     * @return the interface contract
+     */
+    InterfaceContract getInterfaceContract();
+    
+    /**
+     * Sets the interface contract defining the interface and callback
+     * interface for the contract.
+     * 
+     * @param interfaceContract the interface contract
+     */
+    void setInterfaceContract(InterfaceContract interfaceContract);
+
+    /**
+     * Returns true if this contract is a reference or service created internally
+     * to handle a callback interface of another contract, false otherwise.
+     * 
+     * @return true for a callback contract, false otherwise
+     */
+    boolean isCallback();
+
+    /**
+     * Sets a flag indicating whether this is a callback contract.
+     * 
+     * @param isCallback true for a callback contract, false otherwise
+     */
+    void setIsCallback(boolean isCallback);
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/AbstractProperty.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/AbstractProperty.java
new file mode 100644
index 0000000000..05f0e60981
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/AbstractProperty.java
@@ -0,0 +1,124 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.policy.IntentAttachPoint;
+
+/**
+ * A property allows for the configuration of an implementation with externally
+ * set data values. An implementation can have zero or more properties. Each
+ * property has a data type, which may be either simple or complex. An
+ * implementation may also define a default value for a property.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface AbstractProperty extends Base, Extensible, IntentAttachPoint {
+
+    /**
+     * Returns the property name.
+     * 
+     * @return the property name
+     */
+    String getName();
+
+    /**
+     * Sets the property name.
+     * 
+     * @param name the property name
+     */
+    void setName(String name);
+
+    /**
+     * Returns the default value of the property.
+     * 
+     * @return the default value of this property
+     */
+    Object getValue();
+
+    /**
+     * Sets the default value of the property.
+     * 
+     * @param defaultValue the default value of this property
+     */
+    void setValue(Object defaultValue);
+
+    /**
+     * Returns true if the property allows multiple values.
+     * 
+     * @return true if the property allows multiple values
+     */
+    boolean isMany();
+
+    /**
+     * Sets whether or not the property allows multiple values.
+     * 
+     * @param many true if the property should allow multiple values
+     */
+    void setMany(boolean many);
+
+    /**
+     * Returns true if a value must be supplied for the property.
+     * 
+     * @return true is a value must be supplied for the property
+     */
+    boolean isMustSupply();
+
+    /**
+     * Sets whether a value must be supplied for the property.
+     * 
+     * @param mustSupply set to true to require that a value be supplied for
+     *            uses of this property
+     */
+    void setMustSupply(boolean mustSupply);
+
+    /**
+     * Returns the data type of this property. This is the qualified name of an
+     * XML schema type.
+     * 
+     * @return the type of this property
+     */
+    QName getXSDType();
+
+    /**
+     * Sets the data type of this property. This is the qualified name of an XML
+     * schema type.
+     * 
+     * @param type the type of this property
+     */
+    void setXSDType(QName type);
+
+    /**
+     * Returns the element defining the data type of this property. This is the
+     * qualified name of an XML schema element.
+     * 
+     * @return the element defining the type of this property
+     */
+    QName getXSDElement();
+
+    /**
+     * Sets the element defining the data type of this property. This is the
+     * qualified name of an XML schema element.
+     * 
+     * @param element the element defining the type of this property
+     */
+    void setXSDElement(QName element);
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/AbstractReference.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/AbstractReference.java
new file mode 100644
index 0000000000..a9ef26bbb9
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/AbstractReference.java
@@ -0,0 +1,43 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+/**
+ * Represents a reference contract.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface AbstractReference extends AbstractContract {
+
+    /**
+     * Returns the multiplicity allowed for wires connected to this reference.
+     * 
+     * @return the multiplicity allowed for wires connected to this reference
+     */
+    Multiplicity getMultiplicity();
+
+    /**
+     * Sets the multiplicity allowed for wires connected to this reference.
+     * 
+     * @param multiplicity the multiplicity allowed for wires connected to this
+     *            reference
+     */
+    void setMultiplicity(Multiplicity multiplicity);
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/AbstractService.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/AbstractService.java
new file mode 100644
index 0000000000..9ae511c07b
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/AbstractService.java
@@ -0,0 +1,28 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+/**
+ * Represents a service contract.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface AbstractService extends AbstractContract {
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/AssemblyFactory.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/AssemblyFactory.java
new file mode 100644
index 0000000000..8a4fc6dfda
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/AssemblyFactory.java
@@ -0,0 +1,155 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+
+/**
+ * A factory for the assembly model
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface AssemblyFactory {
+
+    /**
+     * Create a new abstract property.
+     * 
+     * @return a new abstract property
+     */
+    AbstractProperty createAbstractProperty();
+
+    /**
+     * Create a new abstract reference.
+     * 
+     * @return a new abstract reference
+     */
+    AbstractReference createAbstractReference();
+
+    /**
+     * Create a new abstract service.
+     * 
+     * @return a new abstract service
+     */
+    AbstractService createAbstractService();
+
+    /**
+     * Create a new callback.
+     * 
+     * @return
+     */
+    Callback createCallback();
+
+    /**
+     * Create a new component.
+     * 
+     * @return a new component
+     */
+    Component createComponent();
+
+    /**
+     * Create a new component property.
+     * 
+     * @return a new component property
+     */
+    ComponentProperty createComponentProperty();
+
+    /**
+     * Create a new component reference.
+     * 
+     * @return a new component reference
+     */
+    ComponentReference createComponentReference();
+
+    /**
+     * Create a new component service.
+     * 
+     * @return a new component service
+     */
+    ComponentService createComponentService();
+
+    /**
+     * Create a new component type
+     * 
+     * @return a new component type
+     */
+    ComponentType createComponentType();
+
+    /**
+     * Create a new composite.
+     * 
+     * @return a new composite
+     */
+    Composite createComposite();
+
+    /**
+     * Create a new composite reference.
+     * 
+     * @return a new composite reference
+     */
+    CompositeReference createCompositeReference();
+
+    /**
+     * Create a new composite service.
+     * 
+     * @return a new composite service
+     */
+    CompositeService createCompositeService();
+
+    /**
+     * Create a new constraining type.
+     * 
+     * @return a new constraining type
+     */
+    ConstrainingType createConstrainingType();
+
+    /**
+     * Create a new property.
+     * 
+     * @return a new property
+     */
+    Property createProperty();
+
+    /**
+     * Create a new reference.
+     * 
+     * @return a new reference
+     */
+    Reference createReference();
+
+    /**
+     * Create a new service.
+     * 
+     * @return a new service
+     */
+    Service createService();
+
+    /**
+     * Create a new wire.
+     * 
+     * @return a new wire
+     */
+    Wire createWire();
+
+    /** 
+     * Create a new configured operation.
+     * 
+     * @return a new ConfiguredOperation 
+     */
+    ConfiguredOperation createConfiguredOperation();
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Base.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Base.java
new file mode 100644
index 0000000000..76511d351d
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Base.java
@@ -0,0 +1,43 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+
+/**
+ * Base interface for all assembly model objects.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface Base {
+
+    /**
+     * Returns true if the model element is unresolved.
+     * 
+     * @return true if the model element is unresolved.
+     */
+    boolean isUnresolved();
+
+    /**
+     * Sets whether the model element is unresolved.
+     * 
+     * @param unresolved whether the model element is unresolved
+     */
+    void setUnresolved(boolean unresolved);
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Binding.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Binding.java
new file mode 100644
index 0000000000..f8b7d4d236
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Binding.java
@@ -0,0 +1,63 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+
+/**
+ * Represents a binding.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface Binding extends Base, Cloneable {
+
+    /**
+     * Returns the binding URI.
+     * 
+     * @return the binding URI
+     */
+    String getURI();
+
+    /**
+     * Sets the binding URI.
+     * 
+     * @param uri the binding URI
+     */
+    void setURI(String uri);
+
+    /**
+     * Returns the binding name.
+     * 
+     * @return the binding name
+     */
+    String getName();
+
+    /**
+     * Sets the binding name.
+     * 
+     * @param name the binding name
+     */
+    void setName(String name);
+    
+    /**
+     * Clone the binding
+     * 
+     * @return
+     */
+    Object clone() throws CloneNotSupportedException;   
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Callback.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Callback.java
new file mode 100644
index 0000000000..f49a653aa9
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Callback.java
@@ -0,0 +1,40 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.policy.IntentAttachPoint;
+import org.apache.tuscany.sca.policy.PolicySetAttachPoint;
+
+/**
+ * Represents a callback object describing the bindings to use for callbacks.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface Callback extends Base, Extensible, IntentAttachPoint, PolicySetAttachPoint, OperationsConfigurator {
+
+    /**
+     * Returns the bindings supported for callbacks.
+     * 
+     * @return the bindings supported for callbacks
+     */
+    List<Binding> getBindings();
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Component.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Component.java
new file mode 100644
index 0000000000..8e1943224c
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Component.java
@@ -0,0 +1,132 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.policy.PolicySetAttachPoint;
+
+/**
+ * Represents a component. A component is a configured instance of an
+ * implementation.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface Component extends Base, Extensible, PolicySetAttachPoint, Cloneable {
+    
+    /**
+     * Returns the URI of the component.
+     *  
+     * @return the URI of the component
+     */
+    String getURI();
+    
+    /**
+     * Sets the URI of the component.
+     * 
+     * @param uri the URI of the component
+     */
+    void setURI(String uri);
+
+    /**
+     * Returns the name of the component.
+     * 
+     * @return the name of the component
+     */
+    String getName();
+
+    /**
+     * Sets the name of the component.
+     * 
+     * @param name the name of the component
+     */
+    void setName(String name);
+
+    /**
+     * Returns the component implementation.
+     * 
+     * @return the component implementation
+     */
+    Implementation getImplementation();
+
+    /**
+     * Sets the component implementation
+     * 
+     * @param implementation the component implementation
+     */
+    void setImplementation(Implementation implementation);
+
+    /**
+     * Returns a list of references used by the component.
+     * 
+     * @return a list of references used by the component
+     */
+    List<ComponentReference> getReferences();
+
+    /**
+     * Returns a list of services exposed by the component.
+     * 
+     * @return a list of services exposed by the component
+     */
+    List<ComponentService> getServices();
+
+    /**
+     * Returns a list of properties for the component.
+     * 
+     * @return a list of properties
+     */
+    List<ComponentProperty> getProperties();
+
+    /**
+     * Returns a constraining type defining the shape of the component.
+     * 
+     * @return a constraining type
+     */
+    ConstrainingType getConstrainingType();
+
+    /**
+     * Sets a constraining type defining the shape of the component.
+     * 
+     * @param constrainingType the constraining type
+     */
+    void setConstrainingType(ConstrainingType constrainingType);
+
+    /**
+     * Return the Boolean value of autowire
+     * @return null/TRUE/FALSE
+     */
+    Boolean getAutowire();
+
+    /**
+     * Sets whether component references should be autowired.
+     * 
+     * @param autowire whether component references should be autowired
+     */
+    void setAutowire(Boolean autowire);
+    
+
+    /**
+     * Returns a clone of the component.
+     * 
+     * @return a clone of the component
+     * @throws CloneNotSupportedException
+     */
+    Object clone() throws CloneNotSupportedException;
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ComponentProperty.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ComponentProperty.java
new file mode 100644
index 0000000000..13d19b1757
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ComponentProperty.java
@@ -0,0 +1,88 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+import javax.xml.xpath.XPathExpression;
+
+/**
+ * Represents a configured property of a component.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface ComponentProperty extends Property {
+
+    /**
+     * Returns the property defined by the component implementation.
+     * 
+     * @return the property defined by the component implementation
+     */
+    Property getProperty();
+
+    /**
+     * Sets the property defined by this component implementation.
+     * 
+     * @param property the property defined by this component implementation
+     */
+    void setProperty(Property property);
+
+    /**
+     * Returns an XPath expression referencing a property of the enclosing
+     * composite.
+     * 
+     * @return an XPath expression referencing a property of the enclosing
+     *         composite
+     */
+    String getSource();
+
+    /**
+     * Sets an XPath expression referencing a property of the enclosing
+     * composite.
+     * 
+     * @param source an XPath expression referencing a property of the enclosing
+     *            composite
+     */
+    void setSource(String source);
+    
+    /**
+     * Get the XPath expression for the source attribute
+     * @return the XPath expression for the source attribute
+     */
+    XPathExpression getSourceXPathExpression();
+    
+    /**
+     * Set the XPath expression for the source attribute
+     * @param sourceXPathExpression the XPath expression for the source attribute
+     */
+    void setSourceXPathExpression(XPathExpression sourceXPathExpression);
+
+    /**
+     * Returns a URI to a file containing the property value.
+     * 
+     * @return a URI to a file containing the property value
+     */
+    String getFile();
+
+    /**
+     * Sets a URI to a file containing the property value.
+     * 
+     * @param file a URI to a file containing the property value
+     */
+    void setFile(String file);
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ComponentReference.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ComponentReference.java
new file mode 100644
index 0000000000..ce40bc089b
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ComponentReference.java
@@ -0,0 +1,83 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+import java.util.List;
+
+
+
+/**
+ * An instance of a reference associated with a particular component.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface ComponentReference extends Reference {
+
+    /**
+     * Returns the reference defined by the implementation for this reference.
+     * 
+     * @return the implementation reference
+     */
+    Reference getReference();
+
+    /**
+     * Sets the reference defined by the implementation for this reference.
+     * 
+     * @param reference the implementation reference
+     */
+    void setReference(Reference reference);
+    
+    /**
+     * Return the Boolean value of autowire
+     * @return null/TRUE/FALSE
+     */
+    Boolean getAutowire();
+
+    /**
+     * Sets whether component references should be autowired.
+     * 
+     * @param autowire whether component references should be autowired
+     */
+    void setAutowire(Boolean autowire);
+
+
+    /**
+     * Returns the callback service created internally as a target endpoint
+     * for callbacks to this reference.
+     * 
+     * @return the callback service
+     */
+    ComponentService getCallbackService();
+
+    /**
+     * Sets the callback service created internally as a target endpoint
+     * for callbacks to this reference.
+     * 
+     * @param callbackService the callback service
+     */
+    void setCallbackService(ComponentService callbackService);
+    
+    /**
+     * Returns the endpoints implied by this reference.
+     * 
+     * @return the endpoints implied by this reference
+     */
+    List<Endpoint> getEndpoints();    
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ComponentService.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ComponentService.java
new file mode 100644
index 0000000000..65945692f1
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ComponentService.java
@@ -0,0 +1,59 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+
+/**
+ * An addressable instance of a service associated with a particular component.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface ComponentService extends Service {
+
+    /**
+     * Returns the service defined by the implementation for this service.
+     * 
+     * @return
+     */
+    Service getService();
+
+    /**
+     * Sets the service defined by the implementation for this service.
+     * 
+     * @param service
+     */
+    void setService(Service service);
+
+    /**
+     * Returns the callback reference created internally as a source endpoint
+     * for callbacks from this service.
+     * 
+     * @return the callback reference
+     */
+    ComponentReference getCallbackReference();
+
+    /**
+     * Sets the callback reference created internally as a source endpoint
+     * for callbacks from this service.
+     * 
+     * @param callbackReference the callback reference
+     */
+    void setCallbackReference(ComponentReference callbackReference);
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ComponentType.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ComponentType.java
new file mode 100644
index 0000000000..e1ea65ea39
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ComponentType.java
@@ -0,0 +1,77 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+import java.util.List;
+
+/**
+ * Describes an implementation and represents its configurable aspects.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface ComponentType extends Base {
+    
+    /**
+     * Returns the URI of this component type.
+     * @return the URI of the component type
+     */
+    String getURI();
+    
+    /**
+     * Sets the URI of this component type.
+     * @param uri the URI of the component type
+     */
+    void setURI(String uri);
+
+    /**
+     * Returns a list of services that are offered.
+     * 
+     * @return a list of services that are offered
+     */
+    List<Service> getServices();
+
+    /**
+     * Returns the list of reference types that are used.
+     * 
+     * @return the list of reference types that are used
+     */
+    List<Reference> getReferences();
+
+    /**
+     * Returns the list of properties that can be set.
+     * 
+     * @return the list of properties that can be set
+     */
+    List<Property> getProperties();
+
+    /**
+     * Returns a constraining type defining the shape of the implementation.
+     * 
+     * @return a constraining type
+     */
+    ConstrainingType getConstrainingType();
+
+    /**
+     * Sets a constraining type defining the shape of the implementation.
+     * 
+     * @param constrainingType the constraining type to set
+     */
+    void setConstrainingType(ConstrainingType constrainingType);
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Composite.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Composite.java
new file mode 100644
index 0000000000..2c7b7c6b9e
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Composite.java
@@ -0,0 +1,110 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+import java.util.List;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.policy.PolicySetAttachPoint;
+
+
+/**
+ * Represents a composite.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface Composite extends Implementation, Extensible, Cloneable, PolicySetAttachPoint {
+
+    /**
+     * Returns the name of the composite.
+     * 
+     * @return the name of the composite
+     */
+    QName getName();
+
+    /**
+     * Sets the name of the composite.
+     * 
+     * @param name the name of the composite
+     */
+    void setName(QName name);
+
+    /**
+     * Returns a list of composites included in this composite.
+     * 
+     * @return a list of composites included in this composite.
+     */
+    List<Composite> getIncludes();
+
+    /**
+     * Returns a list of components contained in this composite.
+     * 
+     * @return a list of components contained in this composite
+     */
+    List<Component> getComponents();
+
+    /**
+     * Returns a list of wires contained in this composite.
+     * 
+     * @return a list of wires contained in this composite
+     */
+    List<Wire> getWires();
+
+    /**
+     * Returns true if all the components within the composite must run in the
+     * same process.
+     * 
+     * @return true if all the components within the composite must run in the
+     *         same process
+     */
+    boolean isLocal();
+
+    /**
+     * Sets whether all the components within the composite must run in the same
+     * process.
+     * 
+     * @param local whether all the components within the composite must run in
+     *            the same process
+     */
+    void setLocal(boolean local);
+
+    /**
+     * Return the Boolean value of autowire
+     * @return null/TRUE/FALSE
+     */
+    Boolean getAutowire();
+
+    /**
+     * Sets whether component references should be autowired.
+     * 
+     * @param autowire whether component references should be autowired
+     */
+    void setAutowire(Boolean autowire);
+
+
+    /**
+     * Returns a clone of the component type.
+     * 
+     * @return a clone of the component type
+     * @throws CloneNotSupportedException
+     */
+    Object clone() throws CloneNotSupportedException;
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/CompositeReference.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/CompositeReference.java
new file mode 100644
index 0000000000..d3fa80ba74
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/CompositeReference.java
@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+import java.util.List;
+
+/**
+ * Represents composite reference.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface CompositeReference extends Reference {
+
+    /**
+     * Returns the promoted composite references.
+     * 
+     * @return the promoted composite references
+     */
+    List<ComponentReference> getPromotedReferences();
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/CompositeService.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/CompositeService.java
new file mode 100644
index 0000000000..7143f571f9
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/CompositeService.java
@@ -0,0 +1,56 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+/**
+ * Represents a composite service.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface CompositeService extends Service {
+
+    /**
+     * Returns the promoted component.
+     * 
+     * @return the promoted component.
+     */
+    Component getPromotedComponent();
+
+    /**
+     * Sets the promoted component
+     * 
+     * @param promotedComponent the promoted component.
+     */
+    void setPromotedComponent(Component promotedComponent);
+    
+    /**
+     * Returns the promoted component service .
+     * 
+     * @return the promoted component service.
+     */
+    ComponentService getPromotedService();
+
+    /**
+     * Sets the promoted component service
+     * 
+     * @param promotedService the promoted component service.
+     */
+    void setPromotedService(ComponentService promotedService);
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ConfiguredOperation.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ConfiguredOperation.java
new file mode 100644
index 0000000000..8832597343
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ConfiguredOperation.java
@@ -0,0 +1,61 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+import org.apache.tuscany.sca.policy.PolicySetAttachPoint;
+
+/**
+ * Represents an Operation. Typically Operation elements are used when there is a
+ * need to apply certain facets such as intents and policysets only to a specific
+ * operation provided by a service or reference.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface ConfiguredOperation extends Base, PolicySetAttachPoint {
+    /**
+     * Returns the name of the operation.
+     * 
+     * @return the name of the operation
+     */
+    String getName();
+
+    /**
+     * Sets the name of the operation.
+     * 
+     * @param name the name of the operation
+     */
+    void setName(String name);
+    
+    /**
+     * Returns the name of the service or reference to which this operation belongs.
+     * This method is particularly useful when operation elements are specified under implementation
+     * elements and it is necessary to identify which of the various services provided by the 
+     * implementation is referred to by the operation element in question
+     * 
+     * @return the name of the contract to which this operation belongs
+     */
+    String getContractName();
+    
+    /**
+     * Sets the name of the service or reference to which this operation belongs.
+     * 
+     * @param contractName the name of the contract to which this operation belongs
+     */
+    void setContractName(String contractName);
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ConstrainingType.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ConstrainingType.java
new file mode 100644
index 0000000000..9890bfed68
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/ConstrainingType.java
@@ -0,0 +1,72 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+import java.util.List;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.policy.IntentAttachPoint;
+
+/**
+ * A constrainingType provides the "shape" for a component and its
+ * implementation. Any component configuration that points to a constrainingType
+ * is constrained by this shape. The constrainingType specifies the services,
+ * references and properties that must be implemented.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface ConstrainingType extends Base, Extensible, IntentAttachPoint {
+
+    /**
+     * Returns the name of the constrainingType.
+     * 
+     * @return the name of the constrainingType
+     */
+    QName getName();
+
+    /**
+     * Sets the name of the constrainingType.
+     * 
+     * @param name the name of the constrainingType
+     */
+    void setName(QName name);
+
+    /**
+     * Returns a list of services that are offered.
+     * 
+     * @return a list of services that are offered
+     */
+    List<AbstractService> getServices();
+
+    /**
+     * Returns the list of references that are used.
+     * 
+     * @return the list of references that are used
+     */
+    List<AbstractReference> getReferences();
+
+    /**
+     * Returns the list of properties that can be set.
+     * 
+     * @return the list of properties that can be set
+     */
+    List<AbstractProperty> getProperties();
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Contract.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Contract.java
new file mode 100644
index 0000000000..f9a62774e6
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Contract.java
@@ -0,0 +1,95 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.policy.PolicySetAttachPoint;
+
+/**
+ * Represents a contract. A contract can be either a service or a reference.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface Contract extends AbstractContract, PolicySetAttachPoint, Cloneable {
+
+    /**
+     * Returns the bindings supported by this contract.
+     * 
+     * @return the bindings supported by this contract
+     */
+    List<Binding> getBindings();
+
+    /**
+     * Returns a binding of the specified type or null if there is no such
+     * binding configured on this contract.
+     * 
+     * @param <B> the binding type
+     * @param bindingClass the binding type class
+     * @return the binding or null if there is no binding of the specified type
+     */
+    <B> B getBinding(Class<B> bindingClass);
+
+    /**
+     * Returns a callback binding of the specified type or null if there is no such
+     * callback binding configured on this contract.
+     * 
+     * @param <B> the callback binding type
+     * @param bindingClass the callback binding type class
+     * @return the callback binding or null if there is no callback binding of the specified type
+     */
+    <B> B getCallbackBinding(Class<B> bindingClass);
+
+    /**
+     * Returns a callback definition of the bindings to use for callbacks.
+     * 
+     * @return a definition of the bindings to use for callbacks
+     */
+    Callback getCallback();
+
+    /**
+     * Sets a callback definition of the bindings to use for callbacks
+     * 
+     * @param callback a definition of the bindings to use for callbacks
+     */
+    void setCallback(Callback callback);
+
+    /**
+     * Returns a clone of the contract.
+     * 
+     * @return a clone of the reference
+     * @throws CloneNotSupportedException
+     */
+    Object clone() throws CloneNotSupportedException;
+    
+    /**
+     * Returns the interface contract given a binding. Important in the case where
+     * a reference with multiplicity > 1 has been promoted and has it's list of 
+     * resolved bindings extended by a promoting reference. Here the binding
+     * from the promoting reference may need the interface contract from the 
+     * promoting reference and not the promoted reference.
+     * TODO - remove this wrinkle with better endpoint support.  
+     * 
+     * @param binding the binding for which the interface contract is required
+     * @return the interface contract
+     */
+    InterfaceContract getInterfaceContract(Binding binding);    
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/DefaultAssemblyFactory.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/DefaultAssemblyFactory.java
new file mode 100644
index 0000000000..5dd256e3c4
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/DefaultAssemblyFactory.java
@@ -0,0 +1,31 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly;
+
+import org.apache.tuscany.sca.assembly.impl.AssemblyFactoryImpl;
+
+/**
+ * A factory for the assembly model.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class DefaultAssemblyFactory extends AssemblyFactoryImpl implements AssemblyFactory {
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/DefaultEndpointFactory.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/DefaultEndpointFactory.java
new file mode 100644
index 0000000000..6b0c076ee5
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/DefaultEndpointFactory.java
@@ -0,0 +1,32 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly;
+
+
+import org.apache.tuscany.sca.assembly.impl.EndpointFactoryImpl;
+
+/**
+ * A default factory for the Endpoint model.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class DefaultEndpointFactory extends EndpointFactoryImpl {
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Endpoint.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Endpoint.java
new file mode 100644
index 0000000000..ee63497fbe
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Endpoint.java
@@ -0,0 +1,167 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+
+/**
+ * Represents an endpoint (primarily a combination of a target service name and a set of
+ * candidate bindings)
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface Endpoint extends Base, Cloneable {
+    
+    /**
+     * Get the name of the target service that this endpoint refers to
+     * 
+     * @return target service name
+     */
+    String getTargetName();
+    
+    /**
+     * Set the name of the target service that this endpoint refers to
+     * 
+     * @param targetName
+     */
+    void setTargetName(String targetName);    
+    
+    /**
+     * Get the source component model object
+     * 
+     * @return source component
+     */
+    Component getSourceComponent();
+    
+    /**
+     * Set the source component model object
+     * 
+     * @param component the source component for the endpoint
+     */
+    void setSourceComponent(Component component);
+    
+    /**
+     * Get the source component reference model object
+     * 
+     * @return reference the source component reference  for the endpoint
+     */
+    ComponentReference getSourceComponentReference();
+    
+    /**
+     * Set the source component reference model object
+     * 
+     * @param reference
+     */
+    void setSourceComponentReference(ComponentReference reference);   
+    
+    /**
+     * Get the resolved source binding 
+     * 
+     * @return binding the resolved source binding
+     */
+    Binding getSourceBinding();
+    
+    /**
+     * Set the resolved source binding 
+     * 
+     * @param binding the resolved source binding
+     */
+    void setSourceBinding(Binding binding);
+
+    /**
+     * Get the resolved source callback binding 
+     * 
+     * @return binding the resolved source callback binding
+     */
+    Binding getSourceCallbackBinding();
+    
+    /**
+     * Set the resolved source callback binding
+     * 
+     * @param binding the resolved source callback binding
+     */
+    void setSourceCallbackBinding(Binding binding);  
+    
+    /**
+     * Get the list of candidate bindings that could be used to 
+     * communication with the target service
+     * 
+     * @return list of candidate bindings
+     */
+    List<Binding> getCandidateBindings();
+    
+    
+    /**
+     * Get the target component model object
+     * 
+     * @return target component
+     */
+    Component getTargetComponent();
+    
+    /**
+     * Set the target component model object
+     * 
+     * @param component target component
+     */
+    void setTargetComponent(Component component);
+    
+    /**
+     * Get the target component service model object
+     * 
+     * @return target component service
+     */
+    ComponentService getTargetComponentService();
+    
+    /**
+     * Set the target component service model object
+     * 
+     * @param service
+     */
+    void setTargetComponentService(ComponentService service);
+    
+    /**
+     * Get the resolved target binding 
+     * 
+     * @return target binding
+     */
+    Binding getTargetBinding();
+    
+    /**
+     * Set the resolved target binding
+     * 
+     * @param binding target binding
+     */
+    void setTargetBinding(Binding binding); 
+    
+    /**
+     * Returns the interface contract defining the interface 
+     * 
+     * @return the interface contract
+     */
+    InterfaceContract getInterfaceContract();
+    
+    /**
+     * Sets the interface contract defining the interface 
+     * 
+     * @param interfaceContract the interface contract
+     */
+    void setInterfaceContract(InterfaceContract interfaceContract);    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/EndpointFactory.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/EndpointFactory.java
new file mode 100644
index 0000000000..93e6c4d630
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/EndpointFactory.java
@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+
+
+/**
+ * A factory for the endpoint model
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface EndpointFactory {
+
+    /**
+     * Create a new endpoint model object 
+     * 
+     * @return a new endpoint
+     */
+    Endpoint createEndpoint();
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Extensible.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Extensible.java
new file mode 100644
index 0000000000..3577a94d1e
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Extensible.java
@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+import java.util.List;
+
+/**
+ * Base interface for extensible assembly model objects.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface Extensible {
+
+    /**
+     * Returns a list of extension objects contained in this model object.
+     * 
+     * @return a list of extension objects container in this model object
+     */
+    List<Object> getExtensions();
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Implementation.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Implementation.java
new file mode 100644
index 0000000000..720a6801a2
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Implementation.java
@@ -0,0 +1,27 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+/**
+ * Represents a component implementation.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface Implementation extends ComponentType {
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Multiplicity.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Multiplicity.java
new file mode 100644
index 0000000000..5d15ce9938
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Multiplicity.java
@@ -0,0 +1,49 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+/**
+ * Enumeration for multiplicity. Defines the number of wires that can connect a
+ * reference to target services.
+ * 
+ * @version $Rev$ $Date$
+ */
+public enum Multiplicity {
+
+    /**
+     * Zero or one wire can have the reference as a source.
+     */
+    ZERO_ONE,
+
+    /**
+     * The default setting, one wire can have the reference as a source.
+     */
+    ONE_ONE,
+
+    /**
+     * Zero or more wires can have the reference as a source.
+     */
+    ZERO_N,
+
+    /**
+     * One or more wires can have the reference as a source.
+     */
+    ONE_N
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/OperationsConfigurator.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/OperationsConfigurator.java
new file mode 100644
index 0000000000..947fcd4c7c
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/OperationsConfigurator.java
@@ -0,0 +1,33 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly;
+
+import java.util.List;
+
+/**
+ * Interface to be implemented by SCA artifacts that support configuration of 'operation' child
+ * elements for policies etc. 
+ *
+ * @version $Rev$ $Date$
+ */
+
+public interface OperationsConfigurator {
+    List<ConfiguredOperation> getConfiguredOperations();
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/OptimizableBinding.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/OptimizableBinding.java
new file mode 100644
index 0000000000..98ff92f15b
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/OptimizableBinding.java
@@ -0,0 +1,66 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+/**
+ * Represent a reference binding that supports optimized SCA local wiring between component 
+ * references and services 
+ * 
+ * @version $Rev$ $Date$
+ * 
+ */
+public interface OptimizableBinding extends Binding, Cloneable {
+
+    /**
+     * @param component
+     */
+    void setTargetComponent(Component component);
+    
+    /**
+     * @param service
+     */
+    void setTargetComponentService(ComponentService service);
+    
+    /**
+     * @param binding
+     */
+    void setTargetBinding(Binding binding);
+    
+    /**
+     * @return
+     */
+    Binding getTargetBinding();
+    
+    /**
+     * @return
+     */
+    Component getTargetComponent();
+    
+    /**
+     * @return
+     */
+    ComponentService getTargetComponentService();
+
+    /**
+     * Clone the binding
+     * @return
+     */
+    Object clone() throws CloneNotSupportedException;
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Property.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Property.java
new file mode 100644
index 0000000000..683920da58
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Property.java
@@ -0,0 +1,41 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+import org.apache.tuscany.sca.policy.PolicySetAttachPoint;
+
+/**
+ * A property allows for the configuration of an implementation with externally
+ * set data values. An implementation can have zero or more properties. Each
+ * property has a data type, which may be either simple or complex. An
+ * implementation may also define a default value for a property.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface Property extends AbstractProperty, PolicySetAttachPoint, Cloneable {
+    
+    /**
+     * Returns a clone of the property.
+     * 
+     * @return a clone of the property
+     * @throws CloneNotSupportedException
+     */
+    Object clone() throws CloneNotSupportedException;
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Reference.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Reference.java
new file mode 100644
index 0000000000..2eb1bf21b0
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Reference.java
@@ -0,0 +1,74 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+import java.util.List;
+
+/**
+ * Represents a reference. References within an implementation represent links
+ * to services that the implementation uses that must be provided by other
+ * components.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface Reference extends AbstractReference, Contract {
+
+    /**
+     * Returns a boolean value, "false" by default, which indicates that the
+     * implementation wires this reference dynamically.
+     * 
+     * @return true if the implementation wires this reference dynamically
+     */
+    boolean isWiredByImpl();
+
+    /**
+     * Sets a boolean value, "false" by default, which indicates that the
+     * implementation wires this reference dynamically.
+     * 
+     * @param wiredByImpl whether the implementation wires this reference
+     *            dynamically
+     */
+    void setWiredByImpl(boolean wiredByImpl);
+
+    /**
+     * Returns a boolean value, "false" by default, which indicates whether
+     * the configuration of this reference is a promotion override for
+     * another more deeply nested reference.
+     * 
+     * @return true if the reference is a promotion override
+     */
+    boolean isPromotionOverride();
+
+    /**
+     * Sets a boolean value, "false" by default, which indicates whether
+     * the configuration of this reference is a promotion override for
+     * another more deeply nested reference.
+     * 
+     * @param promotionOverride whether the reference is a promotion override
+     */
+    void setPromotionOverride(boolean promotionOverride);
+
+    /**
+     * Returns the targets of this reference.
+     * 
+     * @return the targets of this reference.
+     */
+    List<ComponentService> getTargets();
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/SCABinding.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/SCABinding.java
new file mode 100644
index 0000000000..2cf04277cd
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/SCABinding.java
@@ -0,0 +1,27 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+/**
+ * Represents an SCA binding.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface SCABinding extends Binding {
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/SCABindingFactory.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/SCABindingFactory.java
new file mode 100644
index 0000000000..0abfd13d10
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/SCABindingFactory.java
@@ -0,0 +1,36 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+
+/**
+ * A factory for the SCA binding model
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface SCABindingFactory {
+
+    /**
+     * Create a new SCA binding.
+     * 
+     * @return a new SCA binding
+     */
+    SCABinding createSCABinding();
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Service.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Service.java
new file mode 100644
index 0000000000..020870cd34
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Service.java
@@ -0,0 +1,29 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+/**
+ * Represents a service. Services are used to publish services provided by
+ * implementations, so that they are addressable by other components.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface Service extends AbstractService, Contract {
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Wire.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Wire.java
new file mode 100644
index 0000000000..ee65e5746e
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/Wire.java
@@ -0,0 +1,67 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly;
+
+import org.apache.tuscany.sca.policy.IntentAttachPoint;
+import org.apache.tuscany.sca.policy.PolicySetAttachPoint;
+
+/**
+ * Represents a wire.
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface Wire extends Base, Extensible, IntentAttachPoint, PolicySetAttachPoint, Cloneable {
+
+    /**
+     * Returns the source of the wire.
+     * 
+     * @return the source of the wire
+     */
+    ComponentReference getSource();
+
+    /**
+     * Sets the source of the wire.
+     * 
+     * @param source the source of the wire
+     */
+    void setSource(ComponentReference source);
+
+    /**
+     * Returns the target of the wire.
+     * 
+     * @return the target of the wire
+     */
+    ComponentService getTarget();
+
+    /**
+     * Sets the target of the wire.
+     * 
+     * @param target the target of the wire
+     */
+    void setTarget(ComponentService target);
+
+    /**
+     * Returns a clone of the wire.
+     * 
+     * @return a clone of the wire
+     * @throws CloneNotSupportedException
+     */
+    Object clone() throws CloneNotSupportedException;
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/AutomaticBinding.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/AutomaticBinding.java
new file mode 100644
index 0000000000..97708f9ef5
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/AutomaticBinding.java
@@ -0,0 +1,39 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly.builder;
+
+/**
+ * Represent a binding that has been added automatically to the model rather 
+ * than being specified by the user through the composite file
+ * 
+ * @version $Rev$ $Date$
+ * 
+ */
+public interface AutomaticBinding extends Cloneable  {
+
+    /**
+     * @param isAutomatic
+     */
+    void setIsAutomatic(boolean isAutomatic);
+    
+    /**
+     * @return isAutomatic
+     */
+    boolean getIsAutomatic();
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/BindingBuilder.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/BindingBuilder.java
new file mode 100644
index 0000000000..7bac630d5b
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/BindingBuilder.java
@@ -0,0 +1,42 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder;
+
+import org.apache.tuscany.sca.assembly.AbstractContract;
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.monitor.Monitor;
+
+/**
+ * A builder that handles any build-time configuration needed by bindings.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface BindingBuilder {
+    
+    /**
+     * Configure a binding.
+     * 
+     * @param component The component for the binding's service or reference
+     * @param contract The binding's service or reference
+     */
+    void build(Component component, AbstractContract contract, Binding binding, Monitor monitor);
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/BindingBuilderExtension.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/BindingBuilderExtension.java
new file mode 100644
index 0000000000..37ad8af0b3
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/BindingBuilderExtension.java
@@ -0,0 +1,44 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder;
+
+/**
+ * An extension that can be implemented by bindings to provide a binding builder.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface BindingBuilderExtension {
+
+    /**
+     * Returns the binding builder.
+     * 
+     * @return the binding builder
+     */
+    BindingBuilder getBuilder();
+
+    /**
+     * Sets the binding builder.
+     * 
+     * @param builder the binding builder
+     */
+    void setBuilder(BindingBuilder builder);
+
+}
+
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/ComponentPreProcessor.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/ComponentPreProcessor.java
new file mode 100644
index 0000000000..d2fae4d24a
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/ComponentPreProcessor.java
@@ -0,0 +1,33 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder;
+
+import org.apache.tuscany.sca.assembly.Component;
+
+/**
+ * Interface for Component Pre Processors.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface ComponentPreProcessor {
+
+    void preProcess(Component component);
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/CompositeBuilder.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/CompositeBuilder.java
new file mode 100644
index 0000000000..cf38894702
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/CompositeBuilder.java
@@ -0,0 +1,40 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder;
+
+import org.apache.tuscany.sca.assembly.Composite;
+
+/**
+ * A builder that handles the configuration of the components inside a
+ * composite and the wiring of component references to component services.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface CompositeBuilder {
+    
+    /**
+     * Build a composite.
+     * 
+     * @param composite
+     * @throws CompositeBuilderException
+     */
+    void build(Composite composite) throws CompositeBuilderException;
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/CompositeBuilderException.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/CompositeBuilderException.java
new file mode 100644
index 0000000000..5a2015f55e
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/CompositeBuilderException.java
@@ -0,0 +1,45 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder;
+
+/**
+ * Reports a composite builder exception.
+ *
+ * @version $Rev$ $Date$
+ */
+public class CompositeBuilderException extends Exception {
+    private static final long serialVersionUID = -8916323176803443856L;
+
+    public CompositeBuilderException() {
+    }
+
+    public CompositeBuilderException(String message) {
+        super(message);
+    }
+
+    public CompositeBuilderException(Throwable cause) {
+        super(cause);
+    }
+
+    public CompositeBuilderException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/DefaultEndpointBuilder.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/DefaultEndpointBuilder.java
new file mode 100644
index 0000000000..9743117174
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/DefaultEndpointBuilder.java
@@ -0,0 +1,34 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder;
+
+import org.apache.tuscany.sca.assembly.builder.impl.EndpointBuilderImpl;
+import org.apache.tuscany.sca.monitor.Monitor;
+
+/**
+ * A default builder.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class DefaultEndpointBuilder extends EndpointBuilderImpl {
+    public DefaultEndpointBuilder (Monitor monitor){
+        super(monitor);
+    }
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/DomainBuilder.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/DomainBuilder.java
new file mode 100644
index 0000000000..20a17e1bd0
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/DomainBuilder.java
@@ -0,0 +1,80 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.Service;
+
+/**
+ * A builder that handles the configuration of the components inside a
+ * composite and the wiring of component references to component services.
+ *
+ * @version $Rev: 563358 $ $Date: 2007-08-07 01:26:27 +0100 (Tue, 07 Aug 2007) $
+ */
+public interface DomainBuilder {
+    
+    /**
+     * Wire up the references and service in a domain returning a list
+     * of the composites that have changed
+     * 
+     * @param domainLevelCompsite
+     * @return a list of change composites
+     * @throws CompositeBuilderException
+     */
+    List<Composite> wireDomain(Composite domainLevelComposite);
+    
+    /**
+     * Locates the referenced service and updates the URI on the identified binding
+     * 
+     * @param domainLevelComposite
+     * @param referenceName
+     * @param bindingClassName
+     * @param URI
+     */
+    void updateDomainLevelServiceURI(Composite domainLevelComposite, String referenceName, String bindingClassName, String URI);
+    
+    /**
+     * Get the component name out of the reference name that might look like Component/Service
+     * 
+     * @param referenceName
+     * @return
+     */
+    String getComponentNameFromReference(String referenceName);
+    
+    /**
+     * Get the service name out of the reference name that might look like Component/Service
+     * 
+     * @param referenceName
+     * @return
+     */
+    String getServiceNameFromReference(String referenceName);
+    
+    /**
+     * Find the service object given a reference name
+     * 
+     * @param composite
+     * @param referenceName
+     * @return
+     */
+    Service findServiceForReference(Composite composite, String referenceName);
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/EndpointBuilder.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/EndpointBuilder.java
new file mode 100644
index 0000000000..eb2977d87a
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/EndpointBuilder.java
@@ -0,0 +1,40 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder;
+
+import org.apache.tuscany.sca.assembly.Endpoint;
+
+/**
+ * A builder that handles the configuration of reference endpoints
+ * It collects together the logic so that it can be used at build time
+ * or later on during late binding scenarios
+ *
+ * @version $Rev$ $Date$
+ */
+public interface EndpointBuilder {
+    
+    /**
+     * Build an endpoint.
+     * 
+     * @param endpoint
+     */
+    void build(Endpoint endpoint);
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/BaseConfigurationBuilderImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/BaseConfigurationBuilderImpl.java
new file mode 100644
index 0000000000..6f856986ad
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/BaseConfigurationBuilderImpl.java
@@ -0,0 +1,1337 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.xml.namespace.QName;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.transform.TransformerFactory;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentProperty;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.Contract;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.Property;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.SCABinding;
+import org.apache.tuscany.sca.assembly.SCABindingFactory;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.assembly.builder.AutomaticBinding;
+import org.apache.tuscany.sca.assembly.builder.ComponentPreProcessor;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+import org.apache.tuscany.sca.definitions.SCADefinitions;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+import org.apache.tuscany.sca.policy.IntentAttachPoint;
+import org.apache.tuscany.sca.policy.IntentAttachPointType;
+
+/**
+ * Base class for Builder implementations that handles configuration.
+ *
+ * @version $Rev$ $Date$
+ */
+public abstract class BaseConfigurationBuilderImpl {
+    private static final String SCA10_NS = "http://www.osoa.org/xmlns/sca/1.0";
+    private static final String BINDING_SCA = "binding.sca";
+    private static final QName BINDING_SCA_QNAME = new QName(SCA10_NS, BINDING_SCA);
+
+    private AssemblyFactory assemblyFactory;
+    private SCABindingFactory scaBindingFactory;
+    private Monitor monitor;
+    private InterfaceContractMapper interfaceContractMapper;
+    private SCADefinitions policyDefinitions;
+    private DocumentBuilderFactory documentBuilderFactory;
+    private TransformerFactory transformerFactory;
+
+    protected BaseConfigurationBuilderImpl(AssemblyFactory assemblyFactory,
+                                             SCABindingFactory scaBindingFactory,
+                                             DocumentBuilderFactory documentBuilderFactory,
+                                             TransformerFactory transformerFactory,
+                                             InterfaceContractMapper interfaceContractMapper,
+                                             SCADefinitions policyDefinitions,
+                                             Monitor monitor) {
+        this.assemblyFactory = assemblyFactory;
+        this.scaBindingFactory = scaBindingFactory;
+        this.documentBuilderFactory = documentBuilderFactory;
+        this.transformerFactory = transformerFactory;
+        this.interfaceContractMapper = interfaceContractMapper;
+        this.policyDefinitions = policyDefinitions;
+        this.monitor = monitor;
+    }
+
+    /**
+     * Configure components in the composite.
+     * 
+     * @param composite
+     * @param problems
+     */
+    protected void configureComponents(Composite composite) throws CompositeBuilderException {
+        configureComponents(composite, null);
+        configureSourcedProperties(composite, null);
+        //configureBindingURIs(composite, null, null);
+    }
+
+    /**
+     * Configure components in the composite.
+     * 
+     * @param composite
+     * @param uri
+     * @param problems
+     */
+    private void configureComponents(Composite composite, String uri) {
+        String parentURI = uri;
+
+        // Process nested composites recursively
+        for (Component component : composite.getComponents()) {
+
+            // Initialize component URI
+            String componentURI;
+            if (parentURI == null) {
+                componentURI = component.getName();
+            } else {
+                componentURI = URI.create(parentURI + '/').resolve(component.getName()).toString();
+            }
+            component.setURI(componentURI);
+
+            Implementation implementation = component.getImplementation();
+            if (implementation instanceof Composite) {
+
+                // Process nested composite
+                configureComponents((Composite)implementation, componentURI);
+            }
+        }
+
+        // Initialize service bindings
+        List<Service> compositeServices = composite.getServices();
+        for (Service service : compositeServices) {
+            // Set default binding names 
+            
+            // Create default SCA binding
+            if (service.getBindings().isEmpty()) {
+                SCABinding scaBinding = createSCABinding();
+                service.getBindings().add(scaBinding);
+            }
+/*
+            // Initialize binding names and URIs
+            for (Binding binding : service.getBindings()) {
+                
+                // Binding name defaults to the service name
+                if (binding.getName() == null) {
+                    binding.setName(service.getName());
+                }
+            }
+            
+            if (service.getCallback() != null) {
+                for (Binding binding : service.getCallback().getBindings()) {
+                    if (binding.getName() == null) {
+                        binding.setName(service.getName());
+                    }
+                }
+            }
+*/
+        }
+
+        // Initialize reference bindings
+        for (Reference reference : composite.getReferences()) {
+            // Create default SCA binding
+            if (reference.getBindings().isEmpty()) {
+                SCABinding scaBinding = createSCABinding();
+                reference.getBindings().add(scaBinding);
+            }
+/*
+            // Set binding names
+            for (Binding binding : reference.getBindings()) {
+                if (binding.getName() == null) {
+                    binding.setName(reference.getName());
+                }
+            }
+
+            if (reference.getCallback() != null) {
+                for (Binding binding : reference.getCallback().getBindings()) {
+                    if (binding.getName() == null) {
+                        binding.setName(reference.getName());
+                    }
+                }
+            }
+*/
+        }
+
+        // Initialize all component services and references
+        Map<String, Component> components = new HashMap<String, Component>();
+        for (Component component : composite.getComponents()) {
+
+            // Index all components and check for duplicates
+            if (components.containsKey(component.getName())) {
+                error("DuplicateComponentName", component, composite.getName().toString(), component.getName());
+            } else {
+                components.put(component.getName(), component);
+            }
+
+            // Propagate the autowire flag from the composite to components
+            if (component.getAutowire() == null) {
+                component.setAutowire(composite.getAutowire());
+            }
+
+            if (component.getImplementation() instanceof ComponentPreProcessor) {
+                ((ComponentPreProcessor)component.getImplementation()).preProcess(component);
+            }
+
+            // Index properties, services and references
+            Map<String, Service> services = new HashMap<String, Service>();
+            Map<String, Reference> references = new HashMap<String, Reference>();
+            Map<String, Property> properties = new HashMap<String, Property>();
+            indexImplementationPropertiesServicesAndReferences(component,
+                                                               services,
+                                                               references,
+                                                               properties);
+
+            // Index component services, references and properties
+            // Also check for duplicates
+            Map<String, ComponentService> componentServices =
+                new HashMap<String, ComponentService>();
+            Map<String, ComponentReference> componentReferences =
+                new HashMap<String, ComponentReference>();
+            Map<String, ComponentProperty> componentProperties =
+                new HashMap<String, ComponentProperty>();
+            indexComponentPropertiesServicesAndReferences(component,
+                                                          componentServices,
+                                                          componentReferences,
+                                                          componentProperties);
+
+            // Reconcile component services/references/properties and
+            // implementation services/references and create component
+            // services/references/properties for the services/references
+            // declared by the implementation
+            reconcileServices(component, services, componentServices);
+            reconcileReferences(component, references, componentReferences);
+            reconcileProperties(component, properties, componentProperties);
+
+            // Configure or create callback services for component's references
+            // with callbacks
+            configureCallbackServices(component, componentServices);
+
+            // Configure or create callback references for component's services
+            // with callbacks
+            configureCallbackReferences(component, componentReferences);
+
+            // Create self references to the component's services
+//            if (!(component.getImplementation() instanceof Composite)) {
+//                createSelfReferences(component);
+//            }
+
+            // Initialize service bindings
+            for (ComponentService componentService : component.getServices()) {
+
+                // Create default SCA binding
+                if (componentService.getBindings().isEmpty()) {
+                    SCABinding scaBinding = createSCABinding();
+                    componentService.getBindings().add(scaBinding);
+                }
+/*
+                // Set binding names
+                for (Binding binding : componentService.getBindings()) {
+                    
+                    // Binding name defaults to the service name
+                    if (binding.getName() == null) {
+                        binding.setName(componentService.getName());
+                    }
+                }
+                if (componentService.getCallback() != null) {
+                    for (Binding binding : componentService.getCallback().getBindings()) {
+                        if (binding.getName() == null) {
+                            binding.setName(componentService.getName());
+                        }
+                    }
+                }
+*/
+            }
+
+            // Initialize reference bindings
+            for (ComponentReference componentReference : component.getReferences()) {
+
+                // Create default SCA binding
+                if (componentReference.getBindings().isEmpty()) {
+                    SCABinding scaBinding = createSCABinding();
+                    componentReference.getBindings().add(scaBinding);
+                }
+/*
+                // Set binding names
+                for (Binding binding : componentReference.getBindings()) {
+                    if (binding.getName() == null) {
+                        binding.setName(componentReference.getName());
+                    }
+                }
+                if (componentReference.getCallback() != null) {
+                    for (Binding binding : componentReference.getCallback().getBindings()) {
+                        if (binding.getName() == null) {
+                            binding.setName(componentReference.getName());
+                        }
+                    }
+                }
+*/
+            }
+        }
+    }
+
+    /**
+     * Report a warning.
+     * 
+     * @param problems
+     * @param message
+     * @param model
+     */
+    private void warning(String message, Object model, String... messageParameters) {
+        if (monitor != null) {
+            Problem problem = new ProblemImpl(this.getClass().getName(), "assembly-validation-messages", Severity.WARNING, model, message, (Object[])messageParameters);
+            monitor.problem(problem);
+        }
+    }
+    
+    /**
+     * Report a error.
+     * 
+     * @param problems
+     * @param message
+     * @param model
+     */
+    private void error(String message, Object model, String... messageParameters) {
+        if (monitor != null) {
+            Problem problem = new ProblemImpl(this.getClass().getName(), "assembly-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters);
+            monitor.problem(problem);
+        }
+    }
+
+    /**
+     * Reconcile component properties and the properties defined by the
+     * component type.
+     * 
+     * @param component
+     * @param properties
+     * @param componentProperties
+     * @param problems
+     */
+    private void reconcileProperties(Component component,
+                                     Map<String, Property> properties,
+                                     Map<String, ComponentProperty> componentProperties) {
+
+        // Connect component properties to their properties
+        for (ComponentProperty componentProperty : component.getProperties()) {
+            Property property = properties.get(componentProperty.getName());
+            if (property != null) {
+                componentProperty.setProperty(property);
+            } else {
+                warning("PropertyNotFound", component, component.getName(), componentProperty.getName());
+            }
+        }
+
+        // Create component properties for all properties
+        if (component.getImplementation() != null) {
+            for (Property property : component.getImplementation().getProperties()) {
+                if (!componentProperties.containsKey(property.getName())) {
+                    ComponentProperty componentProperty = assemblyFactory.createComponentProperty();
+                    componentProperty.setName(property.getName());
+                    componentProperty.setMany(property.isMany());
+                    componentProperty.setXSDElement(property.getXSDElement());
+                    componentProperty.setXSDType(property.getXSDType());
+                    componentProperty.setProperty(property);
+                    component.getProperties().add(componentProperty);
+                }
+            }
+        }
+
+        // Reconcile component properties and their properties
+        for (ComponentProperty componentProperty : component.getProperties()) {
+            Property property = componentProperty.getProperty();
+            if (property != null) {
+
+                // Check that a component property does not override the
+                // mustSupply attribute
+                if (!property.isMustSupply() && componentProperty.isMustSupply()) {
+                    warning("PropertyMustSupplyIncompatible", component, component.getName(), componentProperty.getName());
+                }
+
+                // Default to the mustSupply attribute specified on the property
+                if (!componentProperty.isMustSupply())
+                    componentProperty.setMustSupply(property.isMustSupply());
+
+                // Default to the value specified on the property
+                if (componentProperty.getValue() == null) {
+                    componentProperty.setValue(property.getValue());
+                }
+                
+                // Override the property value for the composite
+                if(component.getImplementation() instanceof Composite) {
+                    property.setValue(componentProperty.getValue());
+                }
+
+                // Check that a value is supplied
+                if (componentProperty.getValue() == null && property.isMustSupply()) {
+                    warning("PropertyMustSupplyNull", component, component.getName(), componentProperty.getName());
+                }
+
+                // Check that a a component property does not override the
+                // many attribute
+                if (!property.isMany() && componentProperty.isMany()) {
+
+                    warning("PropertyOverrideManyAttribute", component, component.getName(), componentProperty.getName());
+                }
+
+                // Default to the many attribute defined on the property
+                componentProperty.setMany(property.isMany());
+
+                // Default to the type and element defined on the property
+                if (componentProperty.getXSDType() == null) {
+                    componentProperty.setXSDType(property.getXSDType());
+                }
+                if (componentProperty.getXSDElement() == null) {
+                    componentProperty.setXSDElement(property.getXSDElement());
+                }
+
+                // Check that a type or element are specified
+                if (componentProperty.getXSDElement() == null && componentProperty.getXSDType() == null) {
+                    warning("NoTypeForComponentProperty", component, component.getName(), componentProperty.getName());
+                }
+            }
+        }
+    }
+
+    /**
+     * Reconcile component references with the references defined on the
+     * component type.
+     * 
+     * @param component
+     * @param references
+     * @param componentReferences
+     * @param problems
+     */
+    private void reconcileReferences(Component component,
+                                     Map<String, Reference> references,
+                                     Map<String, ComponentReference> componentReferences) {
+
+        // Connect each component reference to the corresponding reference
+        for (ComponentReference componentReference : component.getReferences()) {
+            if (componentReference.getReference() != null || componentReference.isCallback()) {
+                continue;
+            }
+            Reference reference = references.get(componentReference.getName());
+            if (reference != null) {
+                componentReference.setReference(reference);
+            } else {
+                if (!componentReference.getName().startsWith("$self$.")) {
+                    error("ReferenceNotFound", component, component.getName(), componentReference.getName());
+                }
+            }
+        }
+
+        // Create a component reference for each reference
+        if (component.getImplementation() != null) {
+            for (Reference reference : component.getImplementation().getReferences()) {
+                if (!componentReferences.containsKey(reference.getName())) {
+                    ComponentReference componentReference =
+                        assemblyFactory.createComponentReference();
+                    componentReference.setIsCallback(reference.isCallback());
+                    componentReference.setName(reference.getName());
+                    componentReference.setReference(reference);
+                    component.getReferences().add(componentReference);
+                }
+            }
+        }
+
+        // Reconcile each component reference with its reference
+        for (ComponentReference componentReference : component.getReferences()) {
+            Reference reference = componentReference.getReference();
+            if (reference != null) {
+                // Reconcile multiplicity
+                if (componentReference.getMultiplicity() != null) {
+                    if (!ReferenceConfigurationUtil.isValidMultiplicityOverride(reference.getMultiplicity(),
+                                                                   componentReference
+                                                                       .getMultiplicity())) {
+                        warning("ReferenceIncompatibleMultiplicity", component, component.getName(), componentReference.getName());
+                    }
+                } else {
+                    componentReference.setMultiplicity(reference.getMultiplicity());
+                }
+
+                // Reconcile interface
+                InterfaceContract interfaceContract = reference.getInterfaceContract();
+                if (componentReference.getInterfaceContract() != null) {
+                    if (interfaceContract != null && !componentReference.getInterfaceContract().equals(reference
+                        .getInterfaceContract())) {
+                        if (!interfaceContractMapper.isCompatible(componentReference.getInterfaceContract(),
+                                                                  interfaceContract)) {
+                            warning("ReferenceIncompatibleComponentInterface", component, component.getName(), componentReference.getName());
+                        }
+                    }
+                } else {
+                    componentReference.setInterfaceContract(interfaceContract);
+                }
+
+                // Reconcile bindings 
+                if (componentReference.getBindings().isEmpty()) {
+                    componentReference.getBindings().addAll(reference.getBindings());
+                }
+                
+                // Reconcile callback bindings
+                if (componentReference.getCallback() == null) {
+                    componentReference.setCallback(reference.getCallback());
+                    if (componentReference.getCallback() == null) {
+                        // Create an empty callback to avoid null check
+                        componentReference.setCallback(assemblyFactory.createCallback());
+                    }
+
+                } else if (componentReference.getCallback().getBindings().isEmpty() && reference
+                    .getCallback() != null) {
+                    componentReference.getCallback().getBindings().addAll(reference.getCallback()
+                        .getBindings());
+                }
+                
+                // Propagate autowire setting from the component
+                if (componentReference.getAutowire() == null) {
+                    componentReference.setAutowire(component.getAutowire());
+                }
+
+                // Reconcile targets
+                if (componentReference.getTargets().isEmpty()) {
+                    componentReference.getTargets().addAll(reference.getTargets());
+                }
+            }
+        }
+    }
+
+    /**
+     * Reconcile component services and services defined on the component type.
+     * 
+     * @param component
+     * @param services
+     * @param componentServices
+     * @param problems
+     */
+    private void reconcileServices(Component component,
+                                   Map<String, Service> services,
+                                   Map<String, ComponentService> componentServices) {
+
+        // Connect each component service to the corresponding service
+        for (ComponentService componentService : component.getServices()) {
+            if (componentService.getService() != null || componentService.isCallback()) {
+                continue;
+            }
+            Service service = services.get(componentService.getName());
+            if (service != null) {
+                componentService.setService(service);
+            } else {
+                warning("ServiceNotFoundForComponentService", component, component.getName(), componentService.getName());
+            }
+        }
+
+        // Create a component service for each service
+        if (component.getImplementation() != null) {
+            for (Service service : component.getImplementation().getServices()) {
+                if (!componentServices.containsKey(service.getName())) {
+                    ComponentService componentService = assemblyFactory.createComponentService();
+                    componentService.setIsCallback(service.isCallback());
+                    String name = service.getName();
+                    componentService.setName(name);
+                    componentService.setService(service);
+                    component.getServices().add(componentService);
+                    componentServices.put(name, componentService);
+                }
+            }
+        }
+
+        //Reconcile each component service with its service
+        for (ComponentService componentService : component.getServices()) {
+            Service service = componentService.getService();
+            if (service != null) {
+                // Reconcile interface
+                InterfaceContract interfaceContract = service.getInterfaceContract();
+                if (componentService.getInterfaceContract() != null) {
+                    if (interfaceContract != null && !componentService.getInterfaceContract().equals(interfaceContract)) {
+                        if (!interfaceContractMapper.isCompatible(componentService.getInterfaceContract(),
+                                                                  interfaceContract)) {
+                            warning("ServiceIncompatibleComponentInterface", component, component.getName(), componentService.getName());
+                        }
+                    }
+                } else {
+                    componentService.setInterfaceContract(interfaceContract);
+                }
+
+                // Reconcile bindings
+                if (componentService.getBindings().isEmpty()) {
+                    componentService.getBindings().addAll(service.getBindings());
+                }
+                
+                // Reconcile callback bindings
+                if (componentService.getCallback() == null) {
+                    componentService.setCallback(service.getCallback());
+                    if (componentService.getCallback() == null) {
+                        // Create an empty callback to avoid null check
+                        componentService.setCallback(assemblyFactory.createCallback());
+                    }
+                } else if (componentService.getCallback().getBindings().isEmpty() && service
+                    .getCallback() != null) {
+                    componentService.getCallback().getBindings().addAll(service.getCallback()
+                        .getBindings());
+                }
+            }
+        }
+    }
+
+    private void indexComponentPropertiesServicesAndReferences(Component component,
+                                                               Map<String, ComponentService> componentServices,
+                                                               Map<String, ComponentReference> componentReferences,
+                                                               Map<String, ComponentProperty> componentProperties) {
+        for (ComponentService componentService : component.getServices()) {
+            if (componentServices.containsKey(componentService.getName())) {
+                warning("DuplicateComponentServiceName", component, component.getName(), componentService.getName());
+            } else {
+                componentServices.put(componentService.getName(), componentService);
+            }
+        }
+        for (ComponentReference componentReference : component.getReferences()) {
+            if (componentReferences.containsKey(componentReference.getName())) {
+                warning("DuplicateComponentReferenceName", component, component.getName(), componentReference.getName());
+            } else {
+                componentReferences.put(componentReference.getName(), componentReference);
+            }
+        }
+        for (ComponentProperty componentProperty : component.getProperties()) {
+            if (componentProperties.containsKey(componentProperty.getName())) {
+                warning("DuplicateComponentPropertyName", component, component.getName(), componentProperty.getName());
+            } else {
+                componentProperties.put(componentProperty.getName(), componentProperty);
+            }
+        }
+
+    }
+
+    private void indexImplementationPropertiesServicesAndReferences(Component component,
+                                                                    Map<String, Service> services,
+                                                                    Map<String, Reference> references,
+                                                                    Map<String, Property> properties) {
+        // First check that the component has a resolved implementation
+        Implementation implementation = component.getImplementation();
+        if (implementation == null) {
+            // A component must have an implementation
+            warning("NoComponentImplementation", component, component.getName());
+
+        } else if (implementation.isUnresolved()) {
+
+            // The implementation must be fully resolved
+            warning("UnresolvedComponentImplementation", component, component.getName(), implementation.getURI());
+
+        } else {
+
+            // Index properties, services and references, also check for
+            // duplicates
+            for (Property property : implementation.getProperties()) {
+                if (properties.containsKey(property.getName())) {
+                    warning("DuplicateImplementationPropertyName", component, component.getName(), property.getName());
+                } else {
+                    properties.put(property.getName(), property);
+                }
+            }
+            for (Service service : implementation.getServices()) {
+                if (services.containsKey(service.getName())) {
+                    warning("DuplicateImplementationServiceName", component, component.getName(), service.getName());
+                } else {
+                    services.put(service.getName(), service);
+                }
+            }
+            for (Reference reference : implementation.getReferences()) {
+                if (references.containsKey(reference.getName())) {
+                    warning("DuplicateImplementationReferenceName", component, component.getName(), reference.getName());
+                } else {
+                    references.put(reference.getName(), reference);
+                }
+            }
+        }
+
+    }
+
+    /**
+     * For all the references with callbacks, create a corresponding callback
+     * service.
+     * 
+     * @param component
+     */
+    private void configureCallbackServices(Component component,
+                                           Map<String, ComponentService> componentServices) {
+        for (ComponentReference reference : component.getReferences()) {
+            if (reference.getInterfaceContract() != null && // can be null in
+                                                            // unit tests
+            reference.getInterfaceContract().getCallbackInterface() != null) {
+                ComponentService service =
+                    componentServices.get(reference.getName());
+                if (service == null) {
+                    service = createCallbackService(component, reference);
+                }
+                if (reference.getCallback() != null) {
+                    if (service.getBindings().isEmpty()) {
+                        service.getBindings().addAll(reference.getCallback().getBindings());
+                    }
+                }
+                reference.setCallbackService(service);
+            }
+        }
+    }
+
+    /**
+     * Create a callback service for a component reference
+     * 
+     * @param component
+     * @param reference
+     */
+    private ComponentService createCallbackService(Component component, ComponentReference reference) {
+        ComponentService componentService = assemblyFactory.createComponentService();
+        componentService.setIsCallback(true);
+        componentService.setName(reference.getName());
+        try {
+            InterfaceContract contract =
+                (InterfaceContract)reference.getInterfaceContract().clone();
+            contract.setInterface(contract.getCallbackInterface());
+            contract.setCallbackInterface(null);
+            componentService.setInterfaceContract(contract);
+        } catch (CloneNotSupportedException e) {
+            // will not happen
+        }
+        Reference implReference = reference.getReference();
+        if (implReference != null) {
+            Service implService = assemblyFactory.createService();
+            implService.setName(implReference.getName());
+            try {
+                InterfaceContract implContract =
+                    (InterfaceContract)implReference.getInterfaceContract().clone();
+                implContract.setInterface(implContract.getCallbackInterface());
+                implContract.setCallbackInterface(null);
+                implService.setInterfaceContract(implContract);
+            } catch (CloneNotSupportedException e) {
+                // will not happen
+            }
+            componentService.setService(implService);
+        }
+        component.getServices().add(componentService);
+        return componentService;
+    }
+
+    /**
+     * For all the services with callbacks, create a corresponding callback
+     * reference.
+     * 
+     * @param component
+     */
+    private void configureCallbackReferences(Component component,
+                                             Map<String, ComponentReference> componentReferences) {
+        for (ComponentService service : component.getServices()) {
+            if (service.getInterfaceContract() != null && // can be null in
+                                                            // unit tests
+            service.getInterfaceContract().getCallbackInterface() != null) {
+                ComponentReference reference =
+                    componentReferences.get(service.getName());
+                if (reference == null) {
+                    reference = createCallbackReference(component, service);
+                }
+                if (service.getCallback() != null) {
+                    if (reference.getBindings().isEmpty()) {
+                        reference.getBindings().addAll(service.getCallback().getBindings());
+                    }
+                }
+                service.setCallbackReference(reference);
+            }
+        }
+    }
+
+    /**
+     * Create a callback reference for a component service
+     * 
+     * @param component
+     * @param service
+     */
+    private ComponentReference createCallbackReference(Component component, ComponentService service) {
+        ComponentReference componentReference = assemblyFactory.createComponentReference();
+        componentReference.setIsCallback(true);
+        componentReference.setName(service.getName());
+        try {
+            InterfaceContract contract = (InterfaceContract)service.getInterfaceContract().clone();
+            contract.setInterface(contract.getCallbackInterface());
+            contract.setCallbackInterface(null);
+            componentReference.setInterfaceContract(contract);
+        } catch (CloneNotSupportedException e) {
+            // will not happen
+        }
+        Service implService = service.getService();
+        if (implService != null) {
+            Reference implReference = assemblyFactory.createReference();
+            implReference.setName(implService.getName());
+            try {
+                InterfaceContract implContract =
+                    (InterfaceContract)implService.getInterfaceContract().clone();
+                implContract.setInterface(implContract.getCallbackInterface());
+                implContract.setCallbackInterface(null);
+                implReference.setInterfaceContract(implContract);
+            } catch (CloneNotSupportedException e) {
+                // will not happen
+            }
+            componentReference.setReference(implReference);
+        }
+        component.getReferences().add(componentReference);
+        return componentReference;
+    }
+
+    /**
+     * @param composite
+     */
+    private void configureSourcedProperties(Composite composite, List<ComponentProperty> propertySettings) {
+        // Resolve properties
+        Map<String, Property> compositeProperties = new HashMap<String, Property>();
+        ComponentProperty componentProperty = null;
+        for (Property p : composite.getProperties()) {
+            componentProperty = getComponentPropertyByName(p.getName(), propertySettings);
+            if (componentProperty != null) {
+                compositeProperties.put(p.getName(), componentProperty);
+            } else {
+                compositeProperties.put(p.getName(), p);
+            }
+        }
+    
+        for (Component component : composite.getComponents()) {
+            try {
+                PropertyConfigurationUtil.sourceComponentProperties(compositeProperties, component,
+                                                                    documentBuilderFactory, transformerFactory);
+            } catch (Exception e) {
+                // TODO Auto-generated catch block
+                e.printStackTrace();
+            }
+            Implementation impl = component.getImplementation();
+            if (impl instanceof Composite) {
+                configureSourcedProperties((Composite)impl, component.getProperties());
+            }
+        }
+    }
+
+    private ComponentProperty getComponentPropertyByName(String propertyName, List<ComponentProperty> properties) {
+        if (properties != null) {
+            for (ComponentProperty aProperty : properties) {
+                if (aProperty.getName().equals(propertyName)) {
+                    return aProperty;
+                }
+            }
+        }
+        return null;
+    }
+    
+    private SCABinding createSCABinding() {
+        SCABinding scaBinding = scaBindingFactory.createSCABinding();
+        
+        // mark the bindings that are added automatically so that they can 
+        // be disregarded for overriding purposes
+        if (scaBinding instanceof AutomaticBinding){
+            ((AutomaticBinding)scaBinding).setIsAutomatic(true);
+        }
+        
+        if ( policyDefinitions != null ) {
+            for ( IntentAttachPointType attachPointType : policyDefinitions.getBindingTypes() ) {
+                if ( attachPointType.getName().equals(BINDING_SCA_QNAME)) {
+                    ((IntentAttachPoint)scaBinding).setType(attachPointType);
+                }
+            }
+        }
+        
+        return scaBinding;
+    }
+
+    /**
+     * Called by CompositeBindingURIBuilderImpl
+     *  
+     * @param composite the composite to be configured
+     */
+    protected void configureBindingURIsAndNames(Composite composite) throws CompositeBuilderException {
+        configureBindingURIs(composite, null, null);
+        configureBindingNames(composite);
+    }
+
+    /**
+     * Fully resolve the binding URIs based on available information. This includes information
+     * from the ".composite" files, from resources associated with the binding, e.g. WSDL files, 
+     * from any associated policies and from the default information for each binding type.
+     *  
+     * @param composite the composite to be configured
+     * @param defaultBindings list of default binding configurations
+     */
+    protected void configureBindingURIs(Composite composite, List<Binding> defaultBindings) throws CompositeBuilderException {
+        configureBindingURIs(composite, null, defaultBindings);
+    }
+       
+     /**
+      * Fully resolve the binding URIs based on available information. This includes information
+      * from the ".composite" files, from resources associated with the binding, e.g. WSDL files, 
+      * from any associated policies and from the default information for each binding type.
+      * 
+      * NOTE: This method repeats some of the processing performed by the configureComponents()
+      *       method above.  The duplication is needed because NodeConfigurationServiceImpl
+      *       calls this method without previously calling configureComponents().  In the
+      *       normal builder sequence used by CompositeBuilderImpl, both of these methods
+      *       are called.
+      *
+      * TODO: Share the URL calculation algorithm with the configureComponents() method above
+      *       although keeping the configureComponents() methods signature as is because when
+      *       a composite is actually build in a node the node default information is currently
+      *       available
+      *  
+      * @param composite the composite to be configured
+      * @param uri the path to the composite provided through any nested composite component implementations
+      * @param defaultBindings list of default binding configurations
+      */
+    private void configureBindingURIs(Composite composite, String uri, List<Binding> defaultBindings) throws CompositeBuilderException {
+        
+        String parentComponentURI = uri;
+        
+        // Process nested composites recursively
+        for (Component component : composite.getComponents()) {
+
+            // Initialize component URI
+            String componentURI;
+            if (parentComponentURI == null) {
+                componentURI = component.getName();
+            } else {
+                componentURI = URI.create(parentComponentURI + '/').resolve(component.getName()).toString();
+            }
+            component.setURI(componentURI);
+
+            Implementation implementation = component.getImplementation();
+            if (implementation instanceof Composite) {
+
+                // Process nested composite
+                configureBindingURIs((Composite)implementation, componentURI, defaultBindings);
+            }
+        }  
+        
+        // Initialize composite service binding URIs
+        List<Service> compositeServices = composite.getServices();
+        for (Service service : compositeServices) {
+            // Set default binding names 
+            
+            // Create default SCA binding
+            if (service.getBindings().isEmpty()) {
+                SCABinding scaBinding = createSCABinding();
+                service.getBindings().add(scaBinding);
+            }
+    
+            // Initialize binding names and URIs
+            for (Binding binding : service.getBindings()) {  
+                constructBindingName(service, binding);
+                constructBindingURI(parentComponentURI, composite, service, binding, defaultBindings);
+            }
+        }
+        
+        // Initialize component service binding URIs
+        for (Component component : composite.getComponents()) {
+            
+            // Index properties, services and references
+            Map<String, Service> services = new HashMap<String, Service>();
+            Map<String, Reference> references = new HashMap<String, Reference>();
+            Map<String, Property> properties = new HashMap<String, Property>();
+            indexImplementationPropertiesServicesAndReferences(component,
+                                                               services,
+                                                               references,
+                                                               properties);
+
+            // Index component services, references and properties
+            // Also check for duplicates
+            Map<String, ComponentService> componentServices =
+                new HashMap<String, ComponentService>();
+            Map<String, ComponentReference> componentReferences =
+                new HashMap<String, ComponentReference>();
+            Map<String, ComponentProperty> componentProperties =
+                new HashMap<String, ComponentProperty>();
+            indexComponentPropertiesServicesAndReferences(component,
+                                                          componentServices,
+                                                          componentReferences,
+                                                          componentProperties);
+
+            // Reconcile component services/references/properties and
+            // implementation services/references and create component
+            // services/references/properties for the services/references
+            // declared by the implementation
+            reconcileServices(component, services, componentServices);
+            reconcileReferences(component, references, componentReferences);
+            reconcileProperties(component, properties, componentProperties);
+            
+            for (ComponentService service : component.getServices()) {
+    
+                // Create default SCA binding
+                if (service.getBindings().isEmpty()) {
+                    SCABinding scaBinding = createSCABinding();
+                    service.getBindings().add(scaBinding);
+                }
+    
+                // Initialize binding names and URIs
+                for (Binding binding : service.getBindings()) {
+                    
+                    constructBindingName(service, binding);
+                    constructBindingURI(component, service, binding, defaultBindings);
+                }
+            } 
+        }
+    }
+
+    /**
+     * Add default names for callback bindings and reference bindings.  Needs to be
+     * separate from configureBindingURIs() because configureBindingURIs() is called
+     * by NodeConfigurationServiceImpl as well as by CompositeBuilderImpl.
+     */
+    private void configureBindingNames(Composite composite) {
+        
+        // Process nested composites recursively
+        for (Component component : composite.getComponents()) {
+
+            Implementation implementation = component.getImplementation();
+            if (implementation instanceof Composite) {
+
+                // Process nested composite
+                configureBindingNames((Composite)implementation);
+            }
+        }  
+        
+        // Initialize composite service callback binding names
+        for (Service service : composite.getServices()) {
+
+            if (service.getCallback() != null) {
+                for (Binding binding : service.getCallback().getBindings()) {
+                    constructBindingName(service, binding);
+                }
+            }
+        }
+        
+        // Initialize composite reference binding names
+        for (Reference reference : composite.getReferences()) {
+
+            for (Binding binding : reference.getBindings()) {  
+                constructBindingName(reference, binding);
+            }
+
+            if (reference.getCallback() != null) {
+                for (Binding binding : reference.getCallback().getBindings()) {
+                    constructBindingName(reference, binding);
+                }
+            }
+        }
+        
+        // Initialize component service and reference binding names
+        for (Component component : composite.getComponents()) {
+
+            // Initialize component service callback binding names
+            for (ComponentService service : component.getServices()) {
+
+                if (service.getCallback() != null) {
+                    for (Binding binding : service.getCallback().getBindings()) {
+                        constructBindingName(service, binding);
+                    }
+                }
+            } 
+        
+            // Initialize component reference binding names
+            for (ComponentReference reference : component.getReferences()) {
+
+                // Initialize binding names
+                for (Binding binding : reference.getBindings()) {  
+                    constructBindingName(reference, binding);
+                }
+
+                if (reference.getCallback() != null) {
+                    for (Binding binding : reference.getCallback().getBindings()) {
+                        constructBindingName(reference, binding);
+                    }
+                }
+            }
+        }
+    }
+    
+    /**
+     * If a binding name is not provided by the user, construct it based on the service
+     * or reference name
+     * 
+     * @param contract the service or reference
+     * @param binding
+     */
+    private void constructBindingName(Contract contract, Binding binding) {
+        
+        // set the default binding name if one is required        
+        // if there is no name on the binding then set it to the service or reference name 
+        if (binding.getName() == null){
+            binding.setName(contract.getName());
+        }
+            
+        // Check that multiple bindings do not have the same name
+        for (Binding otherBinding : contract.getBindings()) {
+            if (otherBinding == binding) {
+                // Skip the current binding
+                continue;
+            }
+            if (binding.getClass() != otherBinding.getClass()) {
+                // Look for a binding of the same type
+                continue;
+            }
+            if (binding.getName().equals(otherBinding.getName())) {
+                warning(contract instanceof Service ? "MultipleBindingsForService" : "MultipleBindingsForReference",
+                        binding, contract.getName(), binding.getName());
+            }
+        }
+    }
+
+    /**
+     * URI construction for composite bindings based on Assembly Specification section 1.7.2, This method
+     * assumes that the component URI part of the binding URI is formed from the part to the 
+     * composite in question and just calls the generic constructBindingURI method with this 
+     * information
+     * 
+     * @param parentComponentURI
+     * @param composite
+     * @param service
+     * @param binding
+     * @param defaultBindings
+     */
+    private void constructBindingURI(String parentComponentURI, Composite composite, Service service, Binding binding, List<Binding> defaultBindings) 
+    throws CompositeBuilderException{
+        // This is a composite service so there is no component to provide a component URI
+        // The path to this composite (through nested composites) is used.
+        boolean includeBindingName = composite.getServices().size() != 1;
+        constructBindingURI(parentComponentURI, service, binding, includeBindingName, defaultBindings);
+    }
+
+     /**
+      * URI construction for component bindings based on Assembly Specification section 1.7.2. This method
+      * calculates the component URI part based on component information before calling the generic
+      * constructBindingURI method
+      *
+      * @param component the component that holds the service
+      * @param service the service that holds the binding
+      * @param binding the binding for which the URI is being constructed
+      * @param defaultBindings the list of default binding configurations
+      */
+    private void constructBindingURI(Component component, Service service, Binding binding, List<Binding> defaultBindings)
+        throws CompositeBuilderException{
+        boolean includeBindingName = component.getServices().size() != 1;
+        constructBindingURI(component.getURI(), service, binding, includeBindingName, defaultBindings);
+    }
+            
+    /**
+     * Generic URI construction for bindings based on Assembly Specification section 1.7.2
+     * 
+     * @param componentURIString the string version of the URI part that comes from the component name
+     * @param service the service in question
+     * @param binding the binding for which the URI is being constructed
+     * @param includeBindingName when set true the serviceBindingURI part should be used
+     * @param defaultBindings the list of default binding configurations
+     * @throws CompositeBuilderException
+     */
+    private void constructBindingURI(String componentURIString, Service service, Binding binding, boolean includeBindingName, List<Binding> defaultBindings) 
+        throws CompositeBuilderException{
+        
+        try {
+            // calculate the service binding URI
+            URI bindingURI;
+            if (binding.getURI() != null){
+                bindingURI = new URI(binding.getURI());
+
+                // if the user has provided an absolute binding URI then use it
+                if (bindingURI.isAbsolute()){
+                    binding.setURI(bindingURI.toString());
+                    return;
+                }
+            } else {
+                bindingURI = null;
+            }
+            
+            // Get the service binding name
+            URI bindingName;
+            if (binding.getName() != null) {
+                bindingName = new URI(binding.getName());
+            } else {
+                bindingName = new URI("");
+            }
+            
+            // calculate the component URI  
+            URI componentURI;
+            if (componentURIString != null) {
+                componentURI = new URI(addSlashToPath(componentURIString));
+            } else {
+                componentURI = null;
+            }
+            
+            // if the user has provided an absolute component URI then use it
+            if (componentURI != null && componentURI.isAbsolute()){
+                binding.setURI(constructBindingURI(null, componentURI, bindingURI, includeBindingName, bindingName));
+                return;
+            }         
+            
+            // calculate the base URI
+            
+            // get the protocol for this binding/URI
+/* some code that allows binding specific code to run. Being discussed on ML            
+            BindingURICalculator uriCalculator = bindingURICalcualtorExtensionPoint.getBindingURICalculator(binding);
+            
+            if  (uriCalculator != null){
+                String protocol = uriCalculator.getProtocol(binding);
+                
+                // find the default binding with the right protocol
+                Binding defaultBinding = nodeInfo.getBindingDefault(binding, protocol);
+                
+                if (defaultBinding != null){
+                    baseURI = new URI(defaultBinding.getURI());
+                } else {
+                    baseURI = null;
+                }
+                
+            } else {
+                baseURI = null;
+            }
+*/
+            // as a simpler alternative to the above commented out code. 
+            URI baseURI = null;
+            if (defaultBindings != null) {
+                for (Binding defaultBinding : defaultBindings){
+                    if (binding.getClass() == defaultBinding.getClass()){
+                        baseURI = new URI(addSlashToPath(defaultBinding.getURI()));
+                        break;
+                    }
+                }
+            }
+            
+            binding.setURI(constructBindingURI(baseURI, componentURI, bindingURI, includeBindingName, bindingName));
+        } catch (URISyntaxException ex) {
+            error("URLSyntaxException", binding, componentURIString, service.getName(), binding.getName());
+        }      
+    }
+    
+    /**
+     * Use to ensure that URI paths end in "/" as here we want to maintain the
+     * last path element of an base URI when other URI are resolved against it. This is
+     * not the default behaviour of URI resolution as defined in RFC 2369
+     * 
+     * @param path the path string to which the "/" is to be added
+     * @return the resulting path with a "/" added if it not already there
+     */
+    private static String addSlashToPath(String path){
+        if (path.endsWith("/") || path.endsWith("#")){
+            return path;
+        } else {
+            return path + "/";
+        }
+    }
+    
+    /**
+     * Concatenate binding URI parts together based on Assembly Specification section 1.7.2
+     * 
+     * @param baseURI the base of the binding URI
+     * @param componentURI the middle part of the binding URI derived from the component name
+     * @param bindingURI the end part of the binding URI
+     * @param includeBindingName when set true the binding name part should be used
+     * @param bindingName the binding name
+     * @return the resulting URI as a string
+     */
+    private static String constructBindingURI(URI baseURI, URI componentURI, URI bindingURI, boolean includeBindingName, URI bindingName){        
+        String uriString;
+        
+        if (baseURI == null) {
+            if (componentURI == null){
+                if (bindingURI != null ) {
+                    uriString = bindingURI.toString();
+                } else {
+                    uriString = bindingName.toString();
+                }
+            } else {
+                if (bindingURI != null ) {
+                    uriString = componentURI.resolve(bindingURI).toString();
+                } else {
+                    if (includeBindingName) {
+                        uriString = componentURI.resolve(bindingName).toString();
+                    } else {
+                        uriString = componentURI.toString();
+                    }
+                }
+            }
+        } else {
+            if (componentURI == null) {
+                if (bindingURI != null ) {
+                    uriString = basedURI(baseURI, bindingURI).toString();
+                } else {
+                    if (includeBindingName) {
+                        uriString = basedURI(baseURI, bindingName).toString();
+                    } else {
+                        uriString = baseURI.toString();
+                    }
+                }
+            } else {
+                if (bindingURI != null ) {
+                    uriString = basedURI(baseURI, componentURI.resolve(bindingURI)).toString();
+                } else {
+                    if (includeBindingName) {
+                        uriString = basedURI(baseURI, componentURI.resolve(bindingName)).toString();
+                    } else {
+                        uriString = basedURI(baseURI, componentURI).toString();
+                    }
+                }
+            }
+        }
+        
+        // tidy up by removing any trailing "/"
+        if (uriString.endsWith("/")){
+            uriString = uriString.substring(0, uriString.length()-1);   
+        }
+        
+        URI uri = URI.create(uriString);
+        if (!uri.isAbsolute()) {
+            uri = URI.create("/").resolve(uri);
+        }
+        return uri.toString();
+    }
+
+    /**
+     * Combine a URI with a base URI.
+     * 
+     * @param baseURI
+     * @param uri
+     * @return
+     */
+    private static URI basedURI(URI baseURI, URI uri) {
+        if (uri.getScheme() != null) {
+            return uri;
+        }
+        String str = uri.toString();
+        if (str.startsWith("/")) {
+            str = str.substring(1);
+        }
+        return URI.create(baseURI.toString() + str).normalize();
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/BaseWireBuilderImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/BaseWireBuilderImpl.java
new file mode 100644
index 0000000000..0c2d02ab48
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/BaseWireBuilderImpl.java
@@ -0,0 +1,1149 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.CompositeReference;
+import org.apache.tuscany.sca.assembly.CompositeService;
+import org.apache.tuscany.sca.assembly.ConfiguredOperation;
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.EndpointFactory;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.Multiplicity;
+import org.apache.tuscany.sca.assembly.OperationsConfigurator;
+import org.apache.tuscany.sca.assembly.OptimizableBinding;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.SCABinding;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.assembly.Wire;
+import org.apache.tuscany.sca.assembly.builder.DefaultEndpointBuilder;
+import org.apache.tuscany.sca.assembly.builder.EndpointBuilder;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+import org.apache.tuscany.sca.policy.util.PolicyComputationUtils;
+
+/**
+ * A composite builder that handles wiring inside a composite.
+ *
+ * @version $Rev$ $Date$
+ */
+class BaseWireBuilderImpl {
+
+    private Monitor monitor;
+    private AssemblyFactory assemblyFactory;
+    private EndpointFactory endpointFactory;
+    private InterfaceContractMapper interfaceContractMapper;
+    private EndpointBuilder endpointBuilder;
+    
+    
+    protected BaseWireBuilderImpl(AssemblyFactory assemblyFactory, EndpointFactory endpointFactory, InterfaceContractMapper interfaceContractMapper, Monitor monitor) {
+        this.assemblyFactory = assemblyFactory;
+        this.endpointFactory = endpointFactory;
+        this.interfaceContractMapper = interfaceContractMapper;
+        this.monitor = monitor;
+        this.endpointBuilder = new DefaultEndpointBuilder(monitor);
+        
+    }
+    
+    /**
+     * Wire component references to component services and connect promoted
+     * services/references to component services/references inside a composite.
+     * 
+     * @param composite
+     */
+    protected void wireComponentReferences(Composite composite) {
+
+        // Wire nested composites recursively
+        for (Component component : composite.getComponents()) {
+            Implementation implementation = component.getImplementation();
+            if (implementation instanceof Composite) {
+                wireComponentReferences((Composite)implementation);
+            }
+        }
+
+        // Index components, services and references
+        Map<String, Component> components = new HashMap<String, Component>();
+        Map<String, ComponentService> componentServices = new HashMap<String, ComponentService>();
+        Map<String, ComponentReference> componentReferences = new HashMap<String, ComponentReference>();
+        indexComponentsServicesAndReferences(composite, components, componentServices, componentReferences);
+
+        // Connect composite services and references to the component
+        // services and references that they promote
+        //connectCompositeServices(composite, components, componentServices);
+        //connectCompositeReferences(composite, componentReferences);
+
+        // Compute the policies before connecting component references
+        //computePolicies(composite);
+
+        // Connect component references as described in wires
+        connectWires(composite, componentServices, componentReferences);
+
+        // Connect component references to their targets
+        connectComponentReferences(composite, components, componentServices, componentReferences);
+
+        // Validate that references are wired or promoted, according
+        // to their multiplicity
+        for (ComponentReference componentReference : componentReferences.values()) {
+            if (!ReferenceConfigurationUtil.validateMultiplicityAndTargets(componentReference.getMultiplicity(), componentReference
+                .getTargets(), componentReference.getBindings())) {
+                if (componentReference.getTargets().isEmpty()) {
+
+                    // No warning if the reference is promoted out of the current composite
+                    boolean promoted = false;
+                    for (Reference reference : composite.getReferences()) {
+                        CompositeReference compositeReference = (CompositeReference)reference;
+                        if (compositeReference.getPromotedReferences().contains(componentReference)) {
+                            promoted = true;
+                            break;
+                        }
+                    }
+                    if (!promoted && !componentReference.isCallback()) {
+                        warning("ReferenceWithoutTargets", composite, composite.getName().toString(), componentReference.getName());
+                    }
+                } else {
+                    warning("TooManyReferenceTargets", composite, componentReference.getName());
+                }
+            }
+        }
+        
+        // Finally clear the original reference target lists as we now have
+        // bindings to represent the targets
+        for (ComponentReference componentReference : componentReferences.values()) {
+            componentReference.getTargets().clear();
+        }
+    }
+    
+    /**
+     * Index components, services and references inside a composite.
+     * @param composite
+     * @param components
+     * @param componentServices
+     * @param componentReferences
+     */
+    private void indexComponentsServicesAndReferences(Composite composite,
+                                              Map<String, Component> components,
+                                              Map<String, ComponentService> componentServices,
+                                              Map<String, ComponentReference> componentReferences) {
+
+        for (Component component : composite.getComponents()) {
+            
+            // Index components by name
+            components.put(component.getName(), component);
+            
+            ComponentService nonCallbackService = null;
+            int nonCallbackServices = 0;
+            for (ComponentService componentService : component.getServices()) {
+                                  
+                // Index component services by component name / service name
+                String uri = component.getName() + '/' + componentService.getName();
+                componentServices.put(uri, componentService);
+                
+                boolean promotedService = false;
+                if (componentService.getName() != null && componentService.getName().indexOf("$promoted$") > -1) {
+                    promotedService = true;
+                }
+                
+                // count how many non-callback, non-promoted services there are
+                // if there is only one the component name also acts as the service name
+                if ((!componentService.isCallback()) && (!promotedService)) {                            
+                    
+                    // Check how many non callback non-promoted services we have
+                    if (nonCallbackServices == 0) {
+                        nonCallbackService = componentService;
+                    }
+                    nonCallbackServices++;
+                }
+
+            }
+            
+            if (nonCallbackServices == 1) {
+                // If we have a single non callback service, index it by
+                // component name as well
+                componentServices.put(component.getName(), nonCallbackService);
+            }
+            
+            // Index references by component name / reference name
+            for (ComponentReference componentReference : component.getReferences()) {
+                String uri = component.getName() + '/' + componentReference.getName();
+                componentReferences.put(uri, componentReference);
+            }
+        }
+    }
+
+    /**
+     * Report a warning.
+     * 
+     * @param problems
+     * @param message
+     * @param model
+     */
+    private void warning(String message, Object model, String... messageParameters) {
+        if (monitor != null) {
+            Problem problem = new ProblemImpl(this.getClass().getName(), "assembly-validation-messages", Severity.WARNING, model, message, (Object[])messageParameters);
+            monitor.problem(problem);
+        }
+    }
+  
+    /**
+     * Report a exception.
+     * 
+     * @param problems
+     * @param message
+     * @param model
+     */
+    private void error(String message, Object model, Exception ex) {
+        if (monitor != null) {
+            Problem problem = null;
+            problem = new ProblemImpl(this.getClass().getName(), "assembly-validation-messages", Severity.ERROR, model, message, ex);
+            monitor.problem(problem);
+        }
+    }
+
+    /**
+     * Connect composite references and services to the reference and services that they promote.
+     * 
+     * @param composite
+     * @param componentServices
+     * @param problems
+     */
+    protected void connectCompositeReferencesAndServices(Composite composite){
+        // Wire nested composites recursively
+        for (Component component : composite.getComponents()) {
+            Implementation implementation = component.getImplementation();
+            if (implementation instanceof Composite) {
+                connectCompositeReferencesAndServices((Composite)implementation);
+            }
+        }
+
+        // Index components, services and references
+        Map<String, Component> components = new HashMap<String, Component>();
+        Map<String, ComponentService> componentServices = new HashMap<String, ComponentService>();
+        Map<String, ComponentReference> componentReferences = new HashMap<String, ComponentReference>();
+        indexComponentsServicesAndReferences(composite, components, componentServices, componentReferences);
+
+        // Connect composite services and references to the component
+        // services and references that they promote
+        connectCompositeServices(composite, components, componentServices);
+        connectCompositeReferences(composite, componentReferences);
+    }
+            
+    /**
+     * Connect composite services to the component services that they promote.
+     * 
+     * @param composite
+     * @param componentServices
+     * @param problems
+     */
+    private void connectCompositeServices(Composite composite,
+                                          Map<String, Component> components,
+                                          Map<String, ComponentService> componentServices) {
+    
+        // Propagate interfaces from inner composite components' services to
+        // their component services
+        for (Component component : composite.getComponents()) {
+            if (component.getImplementation() instanceof Composite) {
+                for (ComponentService componentService : component.getServices()) {
+                    Service service = componentService.getService();
+                    if (service != null) {
+                        if (componentService.getInterfaceContract() == null) {
+                            componentService.setInterfaceContract(service.getInterfaceContract());
+                        }
+                    }
+                }
+            }
+        }
+    
+        // Connect composite services to the component services that they
+        // promote
+        for (Service service : composite.getServices()) {
+            CompositeService compositeService = (CompositeService)service;
+            ComponentService componentService = compositeService.getPromotedService();
+            if (componentService != null && componentService.isUnresolved()) {
+                
+                String promotedComponentName = compositeService.getPromotedComponent().getName(); 
+                String promotedServiceName;
+                if (componentService.getName() != null) {
+                    promotedServiceName = promotedComponentName + '/' + componentService.getName();
+                } else {
+                    promotedServiceName = promotedComponentName;
+                }
+                ComponentService promotedService = componentServices.get(promotedServiceName);
+                if (promotedService != null) {
+    
+                    // Point to the resolved component
+                    Component promotedComponent = components.get(promotedComponentName);
+                    compositeService.setPromotedComponent(promotedComponent);
+                    
+                    // Point to the resolved component service
+                    compositeService.setPromotedService(promotedService);
+    
+                    // Use the interface contract from the component service if
+                    // none is specified on the composite service
+                    InterfaceContract compositeServiceInterfaceContract = compositeService.getInterfaceContract();
+                    InterfaceContract promotedServiceInterfaceContract = promotedService.getInterfaceContract();
+                    if (compositeServiceInterfaceContract == null) {
+                        compositeService.setInterfaceContract(promotedServiceInterfaceContract);
+                    } else if (promotedServiceInterfaceContract != null) {
+                    	// Check the compositeServiceInterfaceContract and promotedServiceInterfaceContract
+                    	boolean isCompatible = interfaceContractMapper.isCompatible(compositeServiceInterfaceContract, promotedServiceInterfaceContract);
+                    	if(!isCompatible){
+                    	    warning("ServiceInterfaceNotSubSet", compositeService, promotedServiceName);
+                    	}
+                    }
+    
+                } else {
+                    warning("PromotedServiceNotFound", composite, composite.getName().toString(), promotedServiceName);
+                }
+            }
+        }
+    
+    }
+
+    /**
+     * Resolves promoted references.
+     * 
+     * @param composite
+     * @param componentReferences
+     * @param problems
+     */
+    private void connectCompositeReferences(Composite composite, Map<String, ComponentReference> componentReferences) {
+    
+        // Propagate interfaces from inner composite components' references to
+        // their component references
+        for (Component component : composite.getComponents()) {
+            if (component.getImplementation() instanceof Composite) {
+                for (ComponentReference componentReference : component.getReferences()) {
+                    Reference reference = componentReference.getReference();
+                    if (reference != null) {
+                        if (componentReference.getInterfaceContract() == null) {
+                            componentReference.setInterfaceContract(reference.getInterfaceContract());
+                        }
+                    }
+                }
+            }
+        }
+    
+        // Connect composite references to the component references
+        // that they promote
+        for (Reference reference : composite.getReferences()) {
+            CompositeReference compositeReference = (CompositeReference)reference;
+            List<ComponentReference> promotedReferences = compositeReference.getPromotedReferences();
+            for (int i = 0, n = promotedReferences.size(); i < n; i++) {
+                ComponentReference componentReference = promotedReferences.get(i);
+                if (componentReference.isUnresolved()) {
+                    String componentReferenceName = componentReference.getName();
+                    componentReference = componentReferences.get(componentReferenceName);
+                    if (componentReference != null) {
+    
+                        // Point to the resolved component reference
+                        promotedReferences.set(i, componentReference);
+    
+                        // Use the interface contract from the component
+                        // reference if none
+                        // is specified on the composite reference
+                        
+                        InterfaceContract compositeReferenceInterfaceContract = compositeReference.getInterfaceContract();
+                        InterfaceContract componentReferenceInterfaceContract = componentReference.getInterfaceContract();
+                        if (compositeReferenceInterfaceContract == null) {
+                            compositeReference.setInterfaceContract(componentReferenceInterfaceContract);
+                        } else if (componentReferenceInterfaceContract != null) {
+                        	// Check the compositeInterfaceContract and componentInterfaceContract
+                        	boolean isCompatible = interfaceContractMapper.isCompatible(compositeReferenceInterfaceContract, componentReferenceInterfaceContract);
+                        	if (!isCompatible) {
+                        	    warning("ReferenceInterfaceNotSubSet", compositeReference, componentReferenceName);
+                        	}
+                        }
+                    } else {
+                        warning("PromotedReferenceNotFound", composite, composite.getName().toString(), componentReferenceName);
+                    }
+                }
+            }
+        }
+    }
+    
+    private List<Endpoint> createComponentReferenceTargets(Composite composite,
+                                                           Map<String, Component> components,
+                                                           Map<String, ComponentService> componentServices,
+                                                          ComponentReference componentReference) {
+
+        List<Endpoint> endpoints = new ArrayList<Endpoint>();
+        
+        if (componentReference.getAutowire() == Boolean.TRUE) {
+
+            // Find suitable targets in the current composite for an
+            // autowired reference
+            Multiplicity multiplicity = componentReference.getMultiplicity();
+            for (Component targetComponent : composite.getComponents()) {
+                // prevent autowire connecting to self
+                boolean skipSelf = false;
+                for (ComponentReference targetComponentReference : targetComponent.getReferences()) {
+                    if (componentReference == targetComponentReference){
+                        skipSelf = true;
+                    }
+                }
+                
+                if (!skipSelf){
+                    for (ComponentService targetComponentService : targetComponent.getServices()) {
+                        if (componentReference.getInterfaceContract() == null ||
+                            interfaceContractMapper.isCompatible(componentReference.getInterfaceContract(), targetComponentService.getInterfaceContract())) {
+                            
+                            Endpoint endpoint = endpointFactory.createEndpoint();
+                            endpoint.setTargetName(targetComponent.getName());
+                            endpoint.setSourceComponent(null); // TODO - fixed up at start
+                            endpoint.setSourceComponentReference(componentReference);
+                            endpoint.setInterfaceContract(componentReference.getInterfaceContract());
+                            endpoint.setTargetComponent(targetComponent);
+                            endpoint.setTargetComponentService(targetComponentService);
+                            endpoint.getCandidateBindings().addAll(componentReference.getBindings());
+                            endpoints.add(endpoint);
+                            
+                            if (multiplicity == Multiplicity.ZERO_ONE || multiplicity == Multiplicity.ONE_ONE) {
+                                break;
+                            }
+                        }
+                    }
+                }
+            }
+            
+            if (multiplicity == Multiplicity.ONE_N || multiplicity == Multiplicity.ONE_ONE) {
+                if (endpoints.size() == 0) {
+                    warning("NoComponentReferenceTarget", componentReference, componentReference.getName());
+                }
+            }
+
+        } else if (!componentReference.getTargets().isEmpty()) {
+        	
+               // Check if the component reference does not mix the use of endpoints specified via 
+               // binding elements with target endpoints specified via the target attribute
+               for (Binding binding : componentReference.getBindings()) {
+        	    if (binding.getURI() != null) {
+        	        warning("ReferenceEndPointMixWithTarget", composite, componentReference.getName());
+        	    }
+        	}
+
+            // Resolve targets specified on the component reference
+            for (ComponentService componentService : componentReference.getTargets()) {
+                
+                // Resolve the target component and service
+                String name = componentService.getName();
+                ComponentService targetComponentService = componentServices.get(name);
+                Component targetComponent;
+                int s = name.indexOf('/');
+                if (s == -1) {
+                    targetComponent = components.get(name);
+                } else {
+                    targetComponent = components.get(name.substring(0, s));
+                }
+                
+                if (targetComponentService != null) {
+
+                    // Check that the target component service provides
+                    // a superset of the component reference interface
+                    if (componentReference.getInterfaceContract() == null ||
+                        interfaceContractMapper.isCompatible(componentReference.getInterfaceContract(), targetComponentService.getInterfaceContract())) {
+
+                        Endpoint endpoint = endpointFactory.createEndpoint();
+                        endpoint.setTargetName(targetComponent.getName());
+                        endpoint.setSourceComponent(null); // TODO - fixed up at start
+                        endpoint.setSourceComponentReference(componentReference);     
+                        endpoint.setInterfaceContract(componentReference.getInterfaceContract());
+                        endpoint.setTargetComponent(targetComponent);
+                        endpoint.setTargetComponentService(targetComponentService);
+                        endpoint.getCandidateBindings().addAll(componentReference.getBindings());
+                        endpoints.add(endpoint);
+
+                        // mark the reference target as resolved. Used later when we are looking to 
+                        // see if an sca binding is associated with a resolved target or not
+                        componentService.setUnresolved(false);
+                    } else {
+                        warning("ReferenceIncompatibleInterface", composite, composite.getName().toString(), 
+                        		                    componentReference.getName(), componentService.getName());
+                    }
+                } else {
+                    // add all the reference bindings into the target so that they
+                    // can be used for comparison when the target is resolved at runtime
+                    componentService.getBindings().addAll(componentReference.getBindings());
+                    
+                    Endpoint endpoint = endpointFactory.createEndpoint();
+                    endpoint.setTargetName(name);
+                    endpoint.setSourceComponent(null); // TODO - fixed up at start
+                    endpoint.setSourceComponentReference(componentReference);  
+                    endpoint.setInterfaceContract(componentReference.getInterfaceContract());
+                    endpoint.getCandidateBindings().addAll(componentReference.getBindings());
+                    endpoints.add(endpoint);
+                    
+                    // The bindings will be cloned back into the reference when the 
+                    // target is finally resolved. 
+                    warning("ComponentReferenceTargetNotFound", composite, 
+                    		composite.getName().toString(), componentService.getName());
+                }
+            }
+        } else if (componentReference.getReference() != null) {
+
+            // Resolve targets from the corresponding reference in the
+            // componentType
+            for (ComponentService componentService : componentReference.getReference().getTargets()) {
+
+                // Resolve the target component and service
+                String name = componentService.getName();
+                ComponentService targetComponentService = componentServices.get(name);
+                Component targetComponent;
+                int s = name.indexOf('/');
+                if (s == -1) {
+                    targetComponent = components.get(name);
+                } else {
+                    targetComponent = components.get(name.substring(0, s));
+                }
+                
+                if (targetComponentService != null) {
+
+                    // Check that the target component service provides
+                    // a superset of
+                    // the component reference interface
+                    if (componentReference.getInterfaceContract() == null ||
+                        interfaceContractMapper.isCompatible(componentReference.getInterfaceContract(), targetComponentService.getInterfaceContract())) {
+
+                        Endpoint endpoint = endpointFactory.createEndpoint();
+                        endpoint.setTargetName(targetComponent.getName());
+                        endpoint.setSourceComponent(null); // TODO - fixed up at start
+                        endpoint.setSourceComponentReference(componentReference);  
+                        endpoint.setInterfaceContract(componentReference.getInterfaceContract());
+                        endpoint.setTargetComponent(targetComponent);
+                        endpoint.setTargetComponentService(targetComponentService);
+                        endpoint.getCandidateBindings().addAll(componentReference.getBindings());
+                        endpoints.add(endpoint);
+                        
+                        // mark the reference target as resolved. Used later when we are looking to 
+                        // see if an sca binding is associated with a resolved target or not
+                        componentService.setUnresolved(false);
+                    } else {
+                        warning("ComponentIncompatibleInterface", composite, 
+                        		componentReference.getName(), componentService.getName());
+                    }
+                } else {
+                    // add all the reference bindings into the target so that they
+                    // can be used for comparison when the target is resolved at runtime
+                    componentService.getBindings().addAll(componentReference.getBindings());
+                    
+                    // The bindings will be cloned back into the reference when the 
+                    // target is finally resolved. 
+                    
+                    Endpoint endpoint = endpointFactory.createEndpoint();
+                    endpoint.setTargetName(name);
+                    endpoint.setSourceComponent(null); // TODO - fixed up at start
+                    endpoint.setSourceComponentReference(componentReference);  
+                    endpoint.setInterfaceContract(componentReference.getInterfaceContract());
+                    endpoint.getCandidateBindings().addAll(componentReference.getBindings());
+                    endpoints.add(endpoint);                    
+                    
+                    warning("ComponentReferenceTargetNotFound", composite, 
+                    		         composite.getName().toString(), componentService.getName());
+                }
+            }
+        } 
+            
+                
+        // if no endpoints have found so far retrieve any target names that are in binding URIs
+        if (endpoints.isEmpty()){
+            for (Binding binding : componentReference.getBindings()) {
+
+                String uri = binding.getURI();
+                
+                // user hasn't put a uri on the binding so it's not a target name
+                if (uri == null) {
+                    continue;
+                }
+                
+                // user might have put a local target name in the uri so get
+                // the path part and see if it refers to a target we know about
+                // - if it does the reference binding will be matched with a service binding
+                // - if it doesn't it is assumed to be an external reference
+                Component targetComponent = null;
+                ComponentService targetComponentService = null;
+                String path = null;
+                
+                try {
+                    path = URI.create(uri).getPath();
+                } catch(Exception ex){
+                    // just assume that no target is identified if
+                    // a URI related exception is thrown
+                }
+                
+                if (path != null) {
+                    if (path.startsWith("/")) {
+                        path = path.substring(1);
+                    }
+                                                   
+                    // Resolve the target component and service
+                    targetComponentService = componentServices.get(path);
+                    int s = path.indexOf('/');
+                    if (s == -1) {
+                        targetComponent = components.get(path);
+                    } else {
+                        targetComponent = components.get(path.substring(0, s));
+                    }
+                }
+
+                // if the path of the binding URI matches a component in the 
+                // composite then configure an endpoint with this component as the target
+                // if not then the binding URI will be assumed to reference an external service
+                if (targetComponentService != null) {
+
+                    // Check that the target component service provides
+                    // a superset of the component reference interface
+                    if (componentReference.getInterfaceContract() == null ||
+                        interfaceContractMapper.isCompatible(componentReference.getInterfaceContract(), targetComponentService.getInterfaceContract())) {
+
+                        Endpoint endpoint = endpointFactory.createEndpoint();
+                        endpoint.setTargetName(targetComponent.getName());
+                        endpoint.setSourceComponent(null); // TODO - fixed up at start
+                        endpoint.setSourceComponentReference(componentReference); 
+                        endpoint.setInterfaceContract(componentReference.getInterfaceContract());
+                        endpoint.setTargetComponent(targetComponent);
+                        endpoint.setTargetComponentService(targetComponentService);
+                        endpoint.getCandidateBindings().add(binding);
+                        endpoints.add(endpoint);                        
+                    } else {
+                        warning("ReferenceIncompatibleInterface",
+                                composite,
+                                composite.getName().toString(),
+                                componentReference.getName(),
+                                uri);
+                    }
+                } else {
+                    
+                    // create endpoints for manually configured bindings
+                    Endpoint endpoint = endpointFactory.createEndpoint();
+                    endpoint.setTargetName(uri);
+                    endpoint.setSourceComponent(null); // TODO - fixed up at start
+                    endpoint.setSourceComponentReference(componentReference);   
+                    endpoint.setInterfaceContract(componentReference.getInterfaceContract());
+                    endpoint.setSourceBinding(binding);
+                    endpoints.add(endpoint); 
+                }
+            }
+        }
+
+        return endpoints;
+    }
+
+
+    /**
+     * Connect references to their targets.
+     * 
+     * @param composite
+     * @param componentServices
+     * @param componentReferences
+     * @param problems
+     */
+    private void connectComponentReferences(Composite composite,
+                                            Map<String, Component> components,
+                                            Map<String, ComponentService> componentServices,
+                                            Map<String, ComponentReference> componentReferences){
+               
+        for (ComponentReference componentReference : componentReferences.values()) {
+            
+            List<Endpoint> endpoints = createComponentReferenceTargets(composite, 
+                                                                       components, 
+                                                                       componentServices, 
+                                                                       componentReference);
+
+            componentReference.getEndpoints().addAll(endpoints);
+            
+            // the result of calculating the endpoints is either that bindings have been 
+            // configured manually using a URI or that targets have been provided and the 
+            // endpoint remains unresolved. So all endpoints should be either resved or uresolved.
+            boolean endpointsRequireAutomaticResolution = false;
+            for(Endpoint endpoint : endpoints){
+                endpointsRequireAutomaticResolution = endpoint.isUnresolved();
+            }
+            
+            // build each endpoint 
+            if (endpointsRequireAutomaticResolution) { 
+
+                for(Endpoint endpoint : endpoints){
+                    endpointBuilder.build(endpoint);
+                }
+                
+                // TODO - The following step ensures that the reference binding list remains 
+                //        as the record of resolved targets for now. This needs fixing so 
+                //        that the endpoint takes on this responsibility. 
+                componentReference.getBindings().clear();
+                
+                if (componentReference.getCallback() != null){
+                    componentReference.getCallback().getBindings().clear();
+                }
+                
+                for(Endpoint endpoint : endpoints){
+                    if (endpoint.isUnresolved() == false){
+                        componentReference.getBindings().add(endpoint.getSourceBinding());
+                        
+                        if (componentReference.getCallback() != null){
+                            componentReference.getCallback().getBindings().add(endpoint.getSourceCallbackBinding());
+                        }
+                    } 
+                }                
+                
+            } else {
+                // do nothing as no targets have been specified so the bindings
+                // in the reference binding list are assumed to be manually configured
+            }
+                
+            
+/*            
+            // Select the reference bindings matching the target service bindings 
+            List<Binding> selectedBindings = new ArrayList<Binding>();
+            List<Binding> selectedCallbackBindings = null;
+    
+            // Handle callback
+            boolean bidirectional = false;
+            
+            if (componentReference.getInterfaceContract() != null && componentReference.getInterfaceContract().getCallbackInterface() != null) {
+                bidirectional = true;
+                selectedCallbackBindings = new ArrayList<Binding>();
+            }
+    
+            for (Target target : targets) {
+                
+                Component targetComponent = target.getComponent();
+                ComponentService targetComponentService = target.getService();
+                if (targetComponentService.getService() instanceof CompositeService) {
+                    CompositeService compositeService = (CompositeService) targetComponentService.getService();
+                    // Find the promoted component service
+                    targetComponentService = ServiceConfigurationUtil.getPromotedComponentService(compositeService);
+                }
+                
+                try  {
+                    PolicyConfigurationUtil.determineApplicableBindingPolicySets(componentReference, targetComponentService);
+                } catch ( Exception e ) {
+                    warning("Policy related exception: " + e, e);
+                    //throw new RuntimeException(e);
+                }
+
+                // Match the binding against the bindings of the target service
+                Binding selected = BindingConfigurationUtil.resolveBindings(componentReference, targetComponent, targetComponentService);
+                if (selected == null) {
+                    warning("NoMatchingBinding", componentReference, componentReference.getName(), targetComponentService.getName());
+                } else {
+                    selectedBindings.add(selected);
+                }
+                if (bidirectional) {
+                    Binding selectedCallback = BindingConfigurationUtil.resolveCallbackBindings(componentReference, targetComponent, targetComponentService);
+                    if (selectedCallback != null) {
+                        selectedCallbackBindings.add(selectedCallback);
+                    }
+                }
+            }
+*/                       
+            
+            // Need to tidy up the reference binding list and add in the bindings that 
+            // have been selected above. The situation so far...
+            //    Wired reference (1 or more targets are specified)
+            //       Binding.uri = null  - remove as it's left over from target resolution
+            //                             the binding will have been moved to the target from where 
+            //                             it will be resolved later
+            //       Binding.uri != null - the selected and resolved reference binding
+            //    Unwired reference (0 targets)
+            //       Binding.uri = null  - Either a callback reference or the reference is yet to be wired
+            //                             by the implementation so leave the binding where it is
+            //       Binding.uri != null - from the composite file so leave it  
+/*            
+            if ((componentReference.getTargets().size() > 0) ||
+                (!targets.isEmpty())) {
+
+                // Add all the effective bindings
+                componentReference.getBindings().clear();
+                componentReference.getBindings().addAll(selectedBindings);
+                if (bidirectional) {
+                    componentReference.getCallback().getBindings().clear();
+                    componentReference.getCallback().getBindings().addAll(selectedCallbackBindings);
+                }
+               
+                // add in sca bindings to represent all unresolved targets. The sca binding
+                // will try to resolve the target at a later date. 
+                for (ComponentService service : componentReference.getTargets()) {
+                    if (service.isUnresolved()) {
+                        SCABinding scaBinding = null;    
+                    
+                        // find the sca binding amongst the candidate binding list. We want to 
+                        // find this one and clone it as it may have been configured with
+                        // policies
+                        for (Binding binding : service.getBindings()) {
+
+                            if (binding instanceof SCABinding) {
+                                try {
+                                    scaBinding = (SCABinding)((OptimizableBinding)binding).clone();
+                                } catch (CloneNotSupportedException ex){
+                                    // we know it is supported on the SCA binding
+                                }
+                                break;
+                            }
+                        }
+                        
+                        if (scaBinding != null) {
+                            // configure the cloned SCA binding for this reference target
+                            scaBinding.setName(service.getName());
+                            
+                            // this service object holds the list of candidate bindings which 
+                            // can be used for later matching
+                            ((OptimizableBinding)scaBinding).setTargetComponentService(service);
+                            componentReference.getBindings().add(scaBinding);
+                        } else {
+                           // not sure we need to raise a warning here as a warning will already been 
+                           // thrown previously to indicate the reason why there is no sca binding
+                           // warning("NoSCABindingAvailableForUnresolvedService", componentReference, componentReference.getName(), service.getName());
+                        }
+                    }
+                }
+            }
+
+*/            
+            // Connect the optimizable bindings to their target component and
+            // service
+/*            
+            for (Binding binding : componentReference.getBindings()) {
+                if (!(binding instanceof OptimizableBinding)) {
+                    continue;
+                }
+                OptimizableBinding optimizableBinding = (OptimizableBinding)binding;
+                if (optimizableBinding.getTargetComponentService() != null) {
+                    continue;
+                }
+                String uri = optimizableBinding.getURI();
+                if (uri == null) {
+                    continue;
+                }
+                uri = URI.create(uri).getPath();
+                if (uri.startsWith("/")) {
+                    uri = uri.substring(1);
+                }
+                
+                // Resolve the target component and service
+                ComponentService targetComponentService = componentServices.get(uri);
+                Component targetComponent;
+                int s = uri.indexOf('/');
+                if (s == -1) {
+                    targetComponent = components.get(uri);
+                } else {
+                    targetComponent = components.get(uri.substring(0, s));
+                }
+
+                if (targetComponentService != null) {
+
+                    // Check that the target component service provides
+                    // a superset of the component reference interface
+                    if (componentReference.getInterfaceContract() == null ||
+                        interfaceContractMapper.isCompatible(componentReference.getInterfaceContract(), targetComponentService.getInterfaceContract())) {
+
+                    } else {
+                        warning("ReferenceIncompatibleInterface",
+                                composite,
+                                composite.getName().toString(),
+                                componentReference.getName(),
+                                uri);
+                    }
+                    optimizableBinding.setTargetComponent(targetComponent);
+                    optimizableBinding.setTargetComponentService(targetComponentService);
+                    optimizableBinding.setTargetBinding(targetComponentService.getBinding(optimizableBinding.getClass()));
+                }
+            }
+*/             
+        }
+    }
+
+    /**
+     * Resolve wires and connect the sources to their targets
+     * 
+     * @param composite
+     * @param componentServices
+     * @param componentReferences
+     * @param problems
+     */
+    private void connectWires(Composite composite,
+                              Map<String, ComponentService> componentServices,
+                              Map<String, ComponentReference> componentReferences) {
+    
+        // For each wire, resolve the source reference, the target service, and
+        // add it to the list of targets of the reference
+        List<Wire> wires = composite.getWires();
+        for (int i = 0, n = wires.size(); i < n; i++) {
+            Wire wire = wires.get(i);
+    
+            ComponentReference resolvedReference;
+            ComponentService resolvedService;
+    
+            // Resolve the source reference
+            ComponentReference source = wire.getSource();
+            if (source != null && source.isUnresolved()) {
+                resolvedReference = componentReferences.get(source.getName());
+                if (resolvedReference != null) {
+                    wire.setSource(resolvedReference);
+                } else {
+                    warning("WireSourceNotFound", composite, source.getName());
+                }
+            } else {
+                resolvedReference = wire.getSource();
+            }
+    
+            // Resolve the target service
+            ComponentService target = wire.getTarget();
+            if (target != null && target.isUnresolved()) {
+                resolvedService = componentServices.get(target.getName());
+                if (resolvedService != null) {
+                    wire.setTarget(target);
+                } else {
+                    warning("WireTargetNotFound", composite, source.getName());
+                }
+            } else {
+                resolvedService = wire.getTarget();
+            }
+    
+            // Add the target service to the list of targets of the
+            // reference
+            if (resolvedReference != null && resolvedService != null) {
+                // Check that the target component service provides
+                // a superset of
+                // the component reference interface
+                if (resolvedReference.getInterfaceContract() == null || interfaceContractMapper
+                    .isCompatible(resolvedReference.getInterfaceContract(), resolvedService.getInterfaceContract())) {
+    
+                    //resolvedReference.getTargets().add(resolvedService);
+                    resolvedReference.getTargets().add(wire.getTarget());
+                } else {
+                    warning("WireIncompatibleInterface", composite, source.getName(), target.getName());
+                }
+            }
+        }
+    
+        // Clear the list of wires
+        composite.getWires().clear();
+    }
+    
+    private void addPoliciesFromPromotedService(CompositeService compositeService) {
+        //inherit intents and policies from promoted service
+        PolicyComputationUtils.addInheritedIntents(compositeService.getPromotedService().getRequiredIntents(), 
+                            compositeService.getRequiredIntents());
+        PolicyComputationUtils.addInheritedPolicySets(compositeService.getPromotedService().getPolicySets(), 
+                               compositeService.getPolicySets(), true);
+        addInheritedOperationConfigurations(compositeService.getPromotedService(), compositeService);
+    }
+    
+    private void addPoliciesFromPromotedReference(CompositeReference compositeReference) {
+        for ( Reference promotedReference : compositeReference.getPromotedReferences() ) {
+           PolicyComputationUtils.addInheritedIntents(promotedReference.getRequiredIntents(), 
+                               compositeReference.getRequiredIntents());
+       
+           PolicyComputationUtils.addInheritedPolicySets(promotedReference.getPolicySets(), 
+                                  compositeReference.getPolicySets(), true);
+           addInheritedOperationConfigurations(promotedReference, compositeReference);
+        }
+    }
+
+    
+    protected void computePolicies(Composite composite) {
+        
+        // compute policies recursively
+        for (Component component : composite.getComponents()) {
+            Implementation implementation = component.getImplementation();
+            if (implementation instanceof Composite) {
+                computePolicies((Composite)implementation);
+            }
+        }
+    
+        for (Component component : composite.getComponents()) {
+
+            // Inherit default policies from the component to component-level contracts.
+            // This must be done BEFORE computing implementation policies because the
+            // implementation policy computer removes from the component any
+            // intents and policy sets that don't apply to implementations.
+            PolicyConfigurationUtil.inheritDefaultPolicies(component, component.getServices());
+            PolicyConfigurationUtil.inheritDefaultPolicies(component, component.getReferences());
+
+            Implementation implemenation = component.getImplementation(); 
+            try {
+                PolicyConfigurationUtil.computeImplementationIntentsAndPolicySets(implemenation, component);
+            } catch ( Exception e ) {
+                error("PolicyRelatedException", implemenation, e);
+                //throw new RuntimeException(e);
+            }
+
+            for (ComponentService componentService : component.getServices()) {
+                Service service = componentService.getService();
+                if (service != null) {
+                    // reconcile intents and policysets from componentType
+                     PolicyComputationUtils.addInheritedIntents(service.getRequiredIntents(), componentService.getRequiredIntents());
+                     PolicyComputationUtils.addInheritedPolicySets(service.getPolicySets(), componentService.getPolicySets(), true);
+                     
+                     //reconcile intents and policysets for operations 
+                     boolean notFound;
+                     List<ConfiguredOperation> opsFromComponentType = new ArrayList<ConfiguredOperation>();
+                     for ( ConfiguredOperation ctsConfOp : service.getConfiguredOperations() ) {
+                         notFound = true;
+                         for ( ConfiguredOperation csConfOp : componentService.getConfiguredOperations() ) {
+                             if ( csConfOp.getName().equals(ctsConfOp.getName()) ) {
+                                 PolicyComputationUtils.addInheritedIntents(ctsConfOp.getRequiredIntents(), csConfOp.getRequiredIntents());
+                                 PolicyComputationUtils.addInheritedPolicySets(ctsConfOp.getPolicySets(), csConfOp.getPolicySets(), true);
+                                 notFound = false;
+                             } 
+                         }
+                         
+                         if ( notFound ) {
+                             opsFromComponentType.add(ctsConfOp);
+                         }
+                     }
+                     componentService.getConfiguredOperations().addAll(opsFromComponentType);
+                }
+                
+                try {
+                    //compute the intents for operations under service element
+                    PolicyConfigurationUtil.computeIntentsForOperations(componentService);
+                    //compute intents and policyset for each binding
+                    //addInheritedOpConfOnBindings(componentService);
+                    PolicyConfigurationUtil.computeBindingIntentsAndPolicySets(componentService);
+                    PolicyConfigurationUtil.determineApplicableBindingPolicySets(componentService, null);
+    
+                } catch ( Exception e ) {
+                    error("PolicyRelatedException", componentService, e);
+                    //throw new RuntimeException(e);
+                }
+            }
+        
+            for (ComponentReference componentReference : component.getReferences()) {
+                Reference reference = componentReference.getReference();
+                if (reference != null) {
+                    // reconcile intents and policysets
+                    PolicyComputationUtils.addInheritedIntents(reference.getRequiredIntents(), componentReference.getRequiredIntents());
+                    PolicyComputationUtils.addInheritedPolicySets(reference.getPolicySets(), componentReference.getPolicySets(), true);
+                }
+                
+               
+                try {
+                    //compute the intents for operations under reference element
+                    PolicyConfigurationUtil.computeIntentsForOperations(componentReference);
+                    //compute intents and policyset for each binding
+                    //addInheritedOpConfOnBindings(componentReference);
+                    PolicyConfigurationUtil.computeBindingIntentsAndPolicySets(componentReference);
+                    PolicyConfigurationUtil.determineApplicableBindingPolicySets(componentReference, null);
+    
+                
+                    if ( componentReference.getCallback() != null ) {
+                        PolicyComputationUtils.addInheritedIntents(componentReference.getRequiredIntents(), 
+                                            componentReference.getCallback().getRequiredIntents());
+                        PolicyComputationUtils.addInheritedPolicySets(componentReference.getPolicySets(), 
+                                               componentReference.getCallback().getPolicySets(), 
+                                               false);
+                    }
+                } catch ( Exception e ) {
+                    error("PolicyRelatedException", componentReference, e);
+                    //throw new RuntimeException(e);
+                }
+            }
+        }
+
+        PolicyConfigurationUtil.inheritDefaultPolicies(composite, composite.getServices());
+        PolicyConfigurationUtil.inheritDefaultPolicies(composite, composite.getReferences());
+
+        //compute policies for composite service bindings
+        for (Service service : composite.getServices()) {
+            addPoliciesFromPromotedService((CompositeService)service);
+            try {
+                //compute the intents for operations under service element
+                PolicyConfigurationUtil.computeIntentsForOperations(service);
+                //add or merge service operations to the binding
+                //addInheritedOpConfOnBindings(service);
+                PolicyConfigurationUtil.computeBindingIntentsAndPolicySets(service);
+                PolicyConfigurationUtil.determineApplicableBindingPolicySets(service, null);
+            } catch ( Exception e ) {
+                error("PolicyRelatedException", service, e);
+                //throw new RuntimeException(e);
+            }
+                
+        }
+    
+        for (Reference reference : composite.getReferences()) {
+            CompositeReference compReference = (CompositeReference)reference;
+            addPoliciesFromPromotedReference(compReference);
+            try {
+                //compute the intents for operations under service element
+                PolicyConfigurationUtil.computeIntentsForOperations(reference);
+                //addInheritedOpConfOnBindings(reference);
+                
+                if (compReference.getCallback() != null) {
+                    PolicyComputationUtils.addInheritedIntents(compReference.getRequiredIntents(), 
+                                        compReference.getCallback().getRequiredIntents());
+                    PolicyComputationUtils.addInheritedPolicySets(compReference.getPolicySets(), 
+                                           compReference.getCallback().getPolicySets(), 
+                                           false);
+                }
+                
+                PolicyConfigurationUtil.computeBindingIntentsAndPolicySets(reference);
+                PolicyConfigurationUtil.determineApplicableBindingPolicySets(reference, null);
+            } catch ( Exception e ) {
+                error("PolicyRelatedException", reference, e);
+                //throw new RuntimeException(e);
+            }
+        }
+
+    }
+    
+    private void addInheritedOperationConfigurations(OperationsConfigurator source, 
+                                                     OperationsConfigurator target) {
+        boolean found = false;
+        
+        List<ConfiguredOperation> additionalOperations = new ArrayList<ConfiguredOperation>();
+        for ( ConfiguredOperation sourceConfOp : source.getConfiguredOperations() ) {
+            for ( ConfiguredOperation targetConfOp : target.getConfiguredOperations() ) {
+                if ( sourceConfOp.getName().equals(targetConfOp.getName())) {
+                    PolicyComputationUtils.addInheritedIntents(sourceConfOp.getRequiredIntents(), 
+                                                               targetConfOp.getRequiredIntents());
+                    PolicyComputationUtils.addInheritedPolicySets(sourceConfOp.getPolicySets(), 
+                                                                  targetConfOp.getPolicySets(), true);
+                    found = true;
+                    break;
+                }
+            }
+            
+            if ( !found ) {
+                additionalOperations.add(sourceConfOp);
+            }
+        }
+        
+        if ( !additionalOperations.isEmpty() ) {
+            target.getConfiguredOperations().addAll(additionalOperations);
+        }
+    }
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/BindingConfigurationUtil.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/BindingConfigurationUtil.java
new file mode 100644
index 0000000000..4016d02a36
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/BindingConfigurationUtil.java
@@ -0,0 +1,146 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.OptimizableBinding;
+import org.apache.tuscany.sca.assembly.SCABinding;
+import org.apache.tuscany.sca.policy.PolicySet;
+import org.apache.tuscany.sca.policy.PolicySetAttachPoint;
+
+/**
+ * This class encapsulates utility methods to deal with binding definitions
+ *
+ * @version $Rev$ $Date$
+ */
+abstract class BindingConfigurationUtil {
+    private static boolean hasCompatiblePolicySets(Binding refBinding, Binding svcBinding) {
+        boolean isCompatible = true;
+        if ( refBinding instanceof PolicySetAttachPoint && svcBinding instanceof PolicySetAttachPoint ) {
+            //TODO : need to add more compatibility checks at the policy attachment levels
+            for ( PolicySet svcPolicySet : ((PolicySetAttachPoint)svcBinding).getPolicySets() ) {
+                isCompatible = false;
+                for ( PolicySet refPolicySet : ((PolicySetAttachPoint)refBinding).getPolicySets() ) {
+                    if ( svcPolicySet.equals(refPolicySet) ) {
+                        isCompatible = true;
+                        break;
+                    }
+                }
+                //if there exists no matching policy set in the reference binding
+                if ( !isCompatible ) {
+                    return isCompatible;
+                }
+            }
+        }
+        return isCompatible;
+    }
+    
+    
+    static Binding matchBinding(Component targetComponent, ComponentService targetComponentService, List<Binding> source, List<Binding> target) {
+        List<Binding> matched = new ArrayList<Binding>();
+        // Find the corresponding bindings from the service side
+        for (Binding binding : source) {
+            for (Binding serviceBinding : target) {
+                if (binding.getClass() == serviceBinding.getClass() && 
+                    hasCompatiblePolicySets(binding, serviceBinding)) {
+
+                    try {
+                        Binding cloned = (Binding)binding.clone();
+                        
+                        //Customise the binding name to make it unique 
+                        // regardless of how many bindings or targets there are
+                        if ( targetComponent != null){
+                            cloned.setName(binding.getName() + "#" + targetComponent.getName() + "/" + serviceBinding.getName());
+                        } else {
+                            cloned.setName(binding.getName() + "#" + serviceBinding.getName());
+                        }
+                        
+                        // Set the binding URI to the URI of the target service
+                        // that has been matched
+                        if (binding.getURI() == null) {
+                            cloned.setURI(serviceBinding.getURI());
+                        }
+                        
+                        if (binding instanceof OptimizableBinding) {
+                            OptimizableBinding endpoint = ((OptimizableBinding)cloned);
+                            endpoint.setTargetComponent(targetComponent);
+                            endpoint.setTargetComponentService(targetComponentService);
+                            endpoint.setTargetBinding(serviceBinding);
+                        } 
+                           
+                        matched.add(cloned);
+                        break;
+                    } catch (Exception ex) {
+                        // do nothing 
+                    }                   
+                }
+            }
+        }
+        if (matched.isEmpty()) {
+            // No matching binding
+            return null;
+        } else {
+            for (Binding binding : matched) {
+                // If binding.sca is present, use it
+                if (SCABinding.class.isInstance(binding)) {
+                    return binding;
+                }
+            }
+            // Use the first one
+            return matched.get(0);
+        }
+    }
+
+    /**
+     * Choose a binding for the reference based on the bindings available on the
+     * service
+     * 
+     * @param reference The component reference
+     * @param service The component service
+     * @return Resolved binding
+     */
+    static Binding resolveBindings(ComponentReference reference, Component component, ComponentService service) {
+        List<Binding> source = reference.getBindings();
+        List<Binding> target = service.getBindings();
+    
+        return matchBinding(component, service, source, target);
+    
+    }
+    
+
+    /**
+     * @param reference
+     * @param service
+     * @return
+     */
+    static Binding resolveCallbackBindings(ComponentReference reference, Component component, ComponentService service) {
+        List<Binding> source = reference.getCallback().getBindings();
+        List<Binding> target = service.getCallback().getBindings();
+    
+        return matchBinding(component, service, source, target);
+    }
+    
+  
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentConfigurationBuilderImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentConfigurationBuilderImpl.java
new file mode 100644
index 0000000000..0643421a45
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentConfigurationBuilderImpl.java
@@ -0,0 +1,68 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.transform.TransformerFactory;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.SCABindingFactory;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+import org.apache.tuscany.sca.definitions.SCADefinitions;
+import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
+import org.apache.tuscany.sca.monitor.Monitor;
+
+/**
+ * A composite builder that handles the configuration of components.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ComponentConfigurationBuilderImpl extends BaseConfigurationBuilderImpl implements CompositeBuilder {
+
+    @Deprecated
+    public ComponentConfigurationBuilderImpl(AssemblyFactory assemblyFactory,
+                                             SCABindingFactory scaBindingFactory,
+                                             InterfaceContractMapper interfaceContractMapper,
+                                             SCADefinitions policyDefinitions,
+                                             Monitor monitor) {
+        super(assemblyFactory, scaBindingFactory,
+              null, null,
+              interfaceContractMapper, policyDefinitions, monitor);
+    }
+
+    public ComponentConfigurationBuilderImpl(AssemblyFactory assemblyFactory,
+                                             SCABindingFactory scaBindingFactory,
+                                             DocumentBuilderFactory documentBuilderFactory,
+                                             TransformerFactory transformerFactory,
+                                             InterfaceContractMapper interfaceContractMapper,
+                                             SCADefinitions policyDefinitions,
+                                             Monitor monitor) {
+        super(assemblyFactory, scaBindingFactory,
+              documentBuilderFactory, transformerFactory,
+              interfaceContractMapper, policyDefinitions, monitor);
+    }
+
+    public void build(Composite composite) throws CompositeBuilderException {
+        configureComponents(composite);
+    }
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentReferenceBindingBuilderImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentReferenceBindingBuilderImpl.java
new file mode 100644
index 0000000000..4913705e91
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentReferenceBindingBuilderImpl.java
@@ -0,0 +1,71 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.builder.BindingBuilderExtension;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+import org.apache.tuscany.sca.monitor.Monitor;
+
+/**
+ * A composite builder that performs any additional building steps that
+ * component reference bindings may need.  Used for WSDL generation.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ComponentReferenceBindingBuilderImpl implements CompositeBuilder {
+    private Monitor monitor;
+
+    public ComponentReferenceBindingBuilderImpl(Monitor monitor) {
+        this.monitor = monitor;
+    }
+
+    public void build(Composite composite) throws CompositeBuilderException {
+        buildReferenceBindings(composite);
+    }
+    
+    private void buildReferenceBindings(Composite composite) {
+    
+        // find all the component reference bindings (starting at top level)     
+        for (Component component : composite.getComponents()) {
+            for (ComponentReference componentReference : component.getReferences()) {
+                for (Binding binding : componentReference.getBindings()) {
+                    if (binding instanceof BindingBuilderExtension) {
+                        ((BindingBuilderExtension)binding).getBuilder().build(component, componentReference, binding, monitor);
+                    }
+                }
+            }
+        }
+        
+        // build bindings recursively
+        for (Component component : composite.getComponents()) {
+            Implementation implementation = component.getImplementation();
+            if (implementation instanceof Composite) {
+                buildReferenceBindings((Composite)implementation);
+            }
+        }
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentReferencePromotionWireBuilderImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentReferencePromotionWireBuilderImpl.java
new file mode 100644
index 0000000000..c0702c87b3
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentReferencePromotionWireBuilderImpl.java
@@ -0,0 +1,165 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.CompositeReference;
+import org.apache.tuscany.sca.assembly.CompositeService;
+import org.apache.tuscany.sca.assembly.EndpointFactory;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.Multiplicity;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.SCABinding;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+import org.apache.tuscany.sca.monitor.Monitor;
+
+/**
+ * A composite builder that handles the creation of promoted composite services.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ComponentReferencePromotionWireBuilderImpl implements CompositeBuilder {
+    private AssemblyFactory assemblyFactory;
+    private EndpointFactory endpointFactory;
+    private Monitor monitor;
+
+    public ComponentReferencePromotionWireBuilderImpl(AssemblyFactory assemblyFactory, EndpointFactory endpointFactory, Monitor monitor) {
+        this.assemblyFactory = assemblyFactory;
+        this.endpointFactory = endpointFactory;
+        this.monitor = monitor;
+    }
+
+    public void build(Composite composite) throws CompositeBuilderException {
+        wireCompositeReferences(composite);
+    }
+
+    /**
+     * Wire composite references in nested composites.
+     * 
+     * @param composite
+     * @param problems
+     */
+    private void wireCompositeReferences(Composite composite) {
+    
+        // Process nested composites recursively
+        for (Component component : composite.getComponents()) {
+            Implementation implementation = component.getImplementation();
+            if (implementation instanceof Composite) {
+                wireCompositeReferences((Composite)implementation);
+            }
+        }
+    
+        // Process component references declared on components in this composite
+        for (Component component : composite.getComponents()) {
+            Implementation implementation = component.getImplementation();
+            if (implementation instanceof Composite) {
+                for (ComponentReference componentReference : component.getReferences()) {
+                    Reference implReference = componentReference.getReference();
+                    if (implReference != null && implReference instanceof CompositeReference) {
+
+                        // If the component reference is wired, it is a promotion override
+                        if (!componentReference.getEndpoints().isEmpty()) {
+                            componentReference.setPromotionOverride(true);
+                        }
+     
+                        // If the component reference is a promotion override, override the
+                        // configuration of the promoted reference  
+                        if (componentReference.isPromotionOverride()) {
+                            CompositeReference compositeReference = (CompositeReference)implReference;
+                            List<ComponentReference> promotedReferences =
+                                ReferenceConfigurationUtil.getPromotedComponentReferences(compositeReference);
+                            for (ComponentReference promotedReference : promotedReferences) {
+                                ReferenceConfigurationUtil.reconcileReferenceBindings(
+                                        componentReference, promotedReference, assemblyFactory, endpointFactory, monitor);
+                                if (componentReference.getInterfaceContract() != null && // can be null in unit tests
+                                    componentReference.getInterfaceContract().getCallbackInterface() != null) {
+                                    SCABinding scaCallbackBinding = promotedReference.getCallbackBinding(SCABinding.class);
+                                    if (promotedReference.getCallback() != null) {
+                                        promotedReference.getCallback().getBindings().clear();
+                                    } else {
+                                        promotedReference.setCallback(assemblyFactory.createCallback());
+                                    }
+                                    if (scaCallbackBinding != null) {
+                                        promotedReference.getCallback().getBindings().add(scaCallbackBinding);
+                                    }
+                                    if (componentReference.getCallback() != null) {
+                                        promotedReference.getCallback().getBindings().addAll(componentReference
+                                            .getCallback().getBindings());
+                                    }
+                                }
+    
+                                // Wire the promoted reference to the actual non-composite component services
+                                if (promotedReference.getMultiplicity() == Multiplicity.ONE_ONE) {
+                                    // promotedReference.getTargets().clear();
+                                }
+                                for (ComponentService target : componentReference.getTargets()) {
+                                    if (target.getService() instanceof CompositeService) {
+        
+                                        // Wire to the actual component service
+                                        // promoted by a composite service
+                                        CompositeService compositeService = (CompositeService)target.getService();
+                                        // Find the promoted component service
+                                        ComponentService componentService =
+                                            ServiceConfigurationUtil.getPromotedComponentService(compositeService);
+                                        if (componentService != null) {
+                                            promotedReference.getTargets().add(componentService);
+                                        }
+                                    } else {
+        
+                                        // Wire to a non-composite target service
+                                        promotedReference.getTargets().add(target);
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            } else {
+                for (ComponentReference componentReference : component.getReferences()) {
+    
+                    // Wire the component reference to the actual
+                    // non-composite component services
+                    List<ComponentService> targets = componentReference.getTargets();
+                    for (int i = 0, n = targets.size(); i < n; i++) {
+                        ComponentService target = targets.get(i);
+                        if (target.getService() instanceof CompositeService) {
+    
+                            // Wire to the actual component service
+                            // promoted by a composite service
+                            CompositeService compositeService = (CompositeService)target.getService();
+                            ComponentService componentService = compositeService.getPromotedService();
+                            if (componentService != null) {
+                                targets.set(i, componentService);
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentReferenceWireBuilderImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentReferenceWireBuilderImpl.java
new file mode 100644
index 0000000000..927330b139
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentReferenceWireBuilderImpl.java
@@ -0,0 +1,44 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.EndpointFactory;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
+import org.apache.tuscany.sca.monitor.Monitor;
+
+/**
+ * A composite builder that wires component references.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ComponentReferenceWireBuilderImpl extends BaseWireBuilderImpl implements CompositeBuilder {
+
+    public ComponentReferenceWireBuilderImpl(AssemblyFactory assemblyFactory, EndpointFactory endpointFactory, InterfaceContractMapper interfaceContractMapper, Monitor monitor) {
+        super(assemblyFactory, endpointFactory, interfaceContractMapper, monitor);
+    }
+
+    public void build(Composite composite) throws CompositeBuilderException {
+        wireComponentReferences(composite);
+    }
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentServiceBindingBuilderImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentServiceBindingBuilderImpl.java
new file mode 100644
index 0000000000..12ea86eac3
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentServiceBindingBuilderImpl.java
@@ -0,0 +1,76 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.assembly.builder.BindingBuilder;
+import org.apache.tuscany.sca.assembly.builder.BindingBuilderExtension;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+import org.apache.tuscany.sca.monitor.Monitor;
+
+/**
+ * A composite builder that performs any additional building steps that
+ * component service bindings may need.  Used for WSDL generation.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ComponentServiceBindingBuilderImpl implements CompositeBuilder {
+    private Monitor monitor;
+
+    public ComponentServiceBindingBuilderImpl(Monitor monitor) {
+        this.monitor = monitor;
+    }
+
+    public void build(Composite composite) throws CompositeBuilderException {
+        buildServiceBindings(composite);
+    }
+    
+    private void buildServiceBindings(Composite composite) {
+        
+        // build bindings recursively
+        for (Component component : composite.getComponents()) {
+            Implementation implementation = component.getImplementation();
+            if (implementation instanceof Composite) {
+                buildServiceBindings((Composite)implementation);
+            }
+        }
+
+        // find all the component service bindings     
+        for (Component component : composite.getComponents()) {
+            for (ComponentService componentService : component.getServices()) {
+                for (Binding binding : componentService.getBindings()) {
+                    if (binding instanceof BindingBuilderExtension) {
+                        BindingBuilder builder = ((BindingBuilderExtension)binding).getBuilder();
+                        if (builder != null) {
+                            builder.build(component, componentService, binding, monitor);
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentServicePromotionBuilderImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentServicePromotionBuilderImpl.java
new file mode 100644
index 0000000000..d73286f7ab
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ComponentServicePromotionBuilderImpl.java
@@ -0,0 +1,99 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.CompositeService;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+
+/**
+ * A composite builder that handles the creation of promoted services.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ComponentServicePromotionBuilderImpl implements CompositeBuilder {
+    private AssemblyFactory assemblyFactory;
+
+    public ComponentServicePromotionBuilderImpl(AssemblyFactory assemblyFactory) {
+        this.assemblyFactory = assemblyFactory;
+    }
+
+    public void build(Composite composite) throws CompositeBuilderException {
+
+        // Process nested composites recursively
+        configureNestedCompositeServices(composite);
+    }
+
+    private void configureNestedCompositeServices(Composite composite) {
+
+        // Process nested composites recursively
+        for (Component component : composite.getComponents()) {
+            Implementation implementation = component.getImplementation();
+            if (implementation instanceof Composite) {
+
+                // First process nested composites
+                configureNestedCompositeServices((Composite)implementation);
+
+                // Process the component services declared on components in this composite
+                for (ComponentService componentService : component.getServices()) {
+                    Service implService = componentService.getService();
+                    if (implService != null && implService instanceof CompositeService) {
+                        CompositeService compositeService = (CompositeService)implService;
+
+                        // Get the innermost promoted service
+                        ComponentService promotedService =
+                            ServiceConfigurationUtil.getPromotedComponentService(compositeService);
+                        if (promotedService != null) {
+                            Component promotedComponent = ServiceConfigurationUtil.getPromotedComponent(compositeService);
+
+                            // Create a new component service to represent this
+                            // component service on the promoted component
+                            ComponentService newComponentService = assemblyFactory.createComponentService();
+                            newComponentService.setName("$promoted$" + component.getName() + "$slash$" + componentService.getName());
+                            promotedComponent.getServices().add(newComponentService);
+                            newComponentService.setService(promotedService.getService());
+                            newComponentService.getBindings().addAll(componentService.getBindings());
+                            newComponentService.setInterfaceContract(componentService.getInterfaceContract());
+                            
+                            if (componentService.getInterfaceContract() != null && 
+                                componentService.getInterfaceContract().getCallbackInterface() != null) {
+                                newComponentService.setCallback(assemblyFactory.createCallback());
+                                newComponentService.getCallback().getBindings()
+                                        .addAll(componentService.getCallback().getBindings());
+                            }
+
+                            // Change the composite service to now promote the
+                            // newly created component service directly
+                            compositeService.setPromotedComponent(promotedComponent);
+                            compositeService.setPromotedService(newComponentService);
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeBindingURIBuilderImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeBindingURIBuilderImpl.java
new file mode 100644
index 0000000000..85af173c0d
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeBindingURIBuilderImpl.java
@@ -0,0 +1,68 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.transform.TransformerFactory;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.SCABindingFactory;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+import org.apache.tuscany.sca.definitions.SCADefinitions;
+import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
+import org.apache.tuscany.sca.monitor.Monitor;
+
+/**
+ * A composite builder that handles the configuration of binding URIs.
+ *
+ * @version $Rev$ $Date$
+ */
+public class CompositeBindingURIBuilderImpl extends BaseConfigurationBuilderImpl implements CompositeBuilder {
+
+    @Deprecated
+    public CompositeBindingURIBuilderImpl(AssemblyFactory assemblyFactory,
+                                          SCABindingFactory scaBindingFactory,
+                                          InterfaceContractMapper interfaceContractMapper,
+                                          SCADefinitions policyDefinitions,
+                                          Monitor monitor) {
+        super(assemblyFactory, scaBindingFactory,
+              null, null,
+              interfaceContractMapper, policyDefinitions, monitor);
+    }
+
+    public CompositeBindingURIBuilderImpl(AssemblyFactory assemblyFactory,
+                                          SCABindingFactory scaBindingFactory,
+                                          DocumentBuilderFactory documentBuilderFactory,
+                                          TransformerFactory transformerFactory,
+                                          InterfaceContractMapper interfaceContractMapper,
+                                          SCADefinitions policyDefinitions,
+                                          Monitor monitor) {
+        super(assemblyFactory, scaBindingFactory,
+              documentBuilderFactory, transformerFactory,
+              interfaceContractMapper, policyDefinitions, monitor);
+    }
+
+    public void build(Composite composite) throws CompositeBuilderException {
+        configureBindingURIsAndNames(composite);
+    }
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeBuilderImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeBuilderImpl.java
new file mode 100644
index 0000000000..282fe032ba
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeBuilderImpl.java
@@ -0,0 +1,223 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import java.util.logging.Logger;
+
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.transform.TransformerFactory;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.DefaultEndpointFactory;
+import org.apache.tuscany.sca.assembly.EndpointFactory;
+import org.apache.tuscany.sca.assembly.SCABindingFactory;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.definitions.SCADefinitions;
+import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.policy.IntentAttachPointTypeFactory;
+
+/**
+ * A builder that handles the configuration of the components inside a composite
+ * and the wiring of component references to component services.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class CompositeBuilderImpl implements CompositeBuilder {
+    private static final Logger logger = Logger.getLogger(CompositeBuilderImpl.class.getName());
+    private CompositeBuilder compositeIncludeBuilder;
+    private CompositeBuilder componentReferenceWireBuilder;
+    private CompositeBuilder componentReferencePromotionWireBuilder;
+    private CompositeBuilder compositeReferenceWireBuilder;
+    private CompositeBuilder compositeCloneBuilder;
+    private CompositeBuilder componentConfigurationBuilder;
+    private CompositeBuilder compositeServiceConfigurationBuilder;
+    private CompositeBuilder compositeReferenceConfigurationBuilder;
+    private CompositeBuilder compositeBindingURIBuilder;
+    private CompositeBuilder componentServicePromotionBuilder;
+    private CompositeBuilder compositeServicePromotionBuilder;
+    private CompositeBuilder compositePromotionBuilder;
+    private CompositeBuilder compositePolicyBuilder;
+    private CompositeBuilder componentServiceBindingBuilder;
+    private CompositeBuilder componentReferenceBindingBuilder;
+    
+    /**
+     * Constructs a new composite builder.
+     * 
+     * @param assemblyFactory
+     * @param scaBindingFactory
+     * @param endpointFactory
+     * @param intentAttachPointTypeFactory
+     * @param interfaceContractMapper
+     * @param policyDefinitions
+     * @param monitor
+     */
+    @Deprecated
+    public CompositeBuilderImpl(AssemblyFactory assemblyFactory,
+                                EndpointFactory endpointFactory,
+                                SCABindingFactory scaBindingFactory,
+                                IntentAttachPointTypeFactory  intentAttachPointTypeFactory,
+                                InterfaceContractMapper interfaceContractMapper,
+                                SCADefinitions policyDefinitions,
+                                Monitor monitor) {
+        this(assemblyFactory, endpointFactory, scaBindingFactory, intentAttachPointTypeFactory,
+             null, null, interfaceContractMapper, policyDefinitions, monitor);
+    }
+        
+    /**
+     * Constructs a new composite builder.
+     * 
+     * @param assemblyFactory
+     * @param scaBindingFactory
+     * @param endpointFactory
+     * @param intentAttachPointTypeFactory
+     * @param interfaceContractMapper
+     * @param policyDefinitions
+     * @param monitor
+     */
+    @Deprecated
+    public CompositeBuilderImpl(AssemblyFactory assemblyFactory,
+                                SCABindingFactory scaBindingFactory,
+                                IntentAttachPointTypeFactory  intentAttachPointTypeFactory,
+                                InterfaceContractMapper interfaceContractMapper,
+                                Monitor monitor) {
+        this(assemblyFactory, null, scaBindingFactory, intentAttachPointTypeFactory,
+             null, null, interfaceContractMapper, null, monitor);
+    }
+        
+    /**
+     * Constructs a new composite builder.
+     * 
+     * @param assemblyFactory
+     * @param scaBindingFactory
+     * @param intentAttachPointTypeFactory
+     * @param documentBuilderFactory
+     * @param transformerFactory
+     * @param interfaceContractMapper
+     * @param monitor
+     */
+    public CompositeBuilderImpl(AssemblyFactory assemblyFactory,
+                                SCABindingFactory scaBindingFactory,
+                                IntentAttachPointTypeFactory  intentAttachPointTypeFactory,
+                                DocumentBuilderFactory documentBuilderFactory,
+                                TransformerFactory transformerFactory,
+                                InterfaceContractMapper interfaceContractMapper,
+                                Monitor monitor) {
+        this(assemblyFactory, null, scaBindingFactory,  intentAttachPointTypeFactory,
+             documentBuilderFactory, transformerFactory, interfaceContractMapper, null, monitor);
+    }
+    
+    /**
+     * Constructs a new composite builder.
+     * 
+     * @param assemblyFactory
+     * @param scaBindingFactory
+     * @param endpointFactory
+     * @param intentAttachPointTypeFactory
+     * @param interfaceContractMapper
+     * @param policyDefinitions
+     * @param monitor
+     */
+    public CompositeBuilderImpl(AssemblyFactory assemblyFactory,
+                                EndpointFactory endpointFactory,
+                                SCABindingFactory scaBindingFactory,
+                                IntentAttachPointTypeFactory  intentAttachPointTypeFactory,
+                                DocumentBuilderFactory documentBuilderFactory,
+                                TransformerFactory transformerFactory,
+                                InterfaceContractMapper interfaceContractMapper,
+                                SCADefinitions policyDefinitions,
+                                Monitor monitor) {
+        
+        if (endpointFactory == null){
+            endpointFactory = new DefaultEndpointFactory();
+        }       
+        
+        compositeIncludeBuilder = new CompositeIncludeBuilderImpl(monitor); 
+        componentReferenceWireBuilder = new ComponentReferenceWireBuilderImpl(assemblyFactory, endpointFactory, interfaceContractMapper, monitor);
+        componentReferencePromotionWireBuilder = new ComponentReferencePromotionWireBuilderImpl(assemblyFactory, endpointFactory, monitor);
+        compositeReferenceWireBuilder = new CompositeReferenceWireBuilderImpl(assemblyFactory, endpointFactory, monitor);
+        compositeCloneBuilder = new CompositeCloneBuilderImpl(monitor);
+        componentConfigurationBuilder = new ComponentConfigurationBuilderImpl(assemblyFactory, scaBindingFactory, documentBuilderFactory, transformerFactory, interfaceContractMapper, policyDefinitions, monitor);
+        compositeServiceConfigurationBuilder = new CompositeServiceConfigurationBuilderImpl(assemblyFactory);
+        compositeReferenceConfigurationBuilder = new CompositeReferenceConfigurationBuilderImpl(assemblyFactory);
+        compositeBindingURIBuilder = new CompositeBindingURIBuilderImpl(assemblyFactory, scaBindingFactory, documentBuilderFactory, transformerFactory, interfaceContractMapper, policyDefinitions, monitor);
+        componentServicePromotionBuilder = new ComponentServicePromotionBuilderImpl(assemblyFactory);
+        compositeServicePromotionBuilder = new CompositeServicePromotionBuilderImpl(assemblyFactory);
+        compositePromotionBuilder = new CompositePromotionBuilderImpl(assemblyFactory, endpointFactory, interfaceContractMapper, monitor);
+        compositePolicyBuilder = new CompositePolicyBuilderImpl(assemblyFactory, endpointFactory, interfaceContractMapper, monitor);
+        componentServiceBindingBuilder = new ComponentServiceBindingBuilderImpl(monitor);
+        componentReferenceBindingBuilder = new ComponentReferenceBindingBuilderImpl(monitor);
+    }
+
+    public void build(Composite composite) throws CompositeBuilderException {
+
+        // Collect and fuse includes
+        compositeIncludeBuilder.build(composite);
+
+        // Expand nested composites
+        compositeCloneBuilder.build(composite);
+
+        // Configure all components
+        componentConfigurationBuilder.build(composite);
+
+        // Connect composite services/references to promoted services/references
+        compositePromotionBuilder.build(composite);
+
+        // Compute the policies across the model hierarchy
+        compositePolicyBuilder.build(composite);
+
+        // Configure composite services
+        compositeServiceConfigurationBuilder.build(composite);
+        
+        // Configure composite references
+        compositeReferenceConfigurationBuilder.build(composite);
+
+        // Configure binding URIs
+        compositeBindingURIBuilder.build(composite);
+
+        // Create promoted component services
+        componentServicePromotionBuilder.build(composite);
+
+        // Create promoted composite services
+        compositeServicePromotionBuilder.build(composite);
+
+        // Build component service binding-related information
+        componentServiceBindingBuilder.build(composite);
+
+        // Wire the components
+        componentReferenceWireBuilder.build(composite);
+
+        // Wire the promoted component references
+        componentReferencePromotionWireBuilder.build(composite);
+
+        // Wire the composite references
+        compositeReferenceWireBuilder.build(composite);
+
+        // Build component reference binding-related information
+        componentReferenceBindingBuilder.build(composite);
+
+        // Fuse nested composites
+        //FIXME do this later
+        //cloneBuilder.fuseCompositeImplementations(composite);
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeCloneBuilderImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeCloneBuilderImpl.java
new file mode 100644
index 0000000000..5779ddbc78
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeCloneBuilderImpl.java
@@ -0,0 +1,118 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+import org.apache.tuscany.sca.monitor.Monitor;
+
+/**
+ * A composite builder that clones nested composites.
+ *
+ * @version $Rev$ $Date$
+ */
+public class CompositeCloneBuilderImpl implements CompositeBuilder {
+    
+    public CompositeCloneBuilderImpl(Monitor monitor) {
+    }
+    
+    public void build(Composite composite) throws CompositeBuilderException {
+        expandCompositeImplementations(composite);
+    }
+
+    /**
+     * Expand composite component implementations.
+     * 
+     * @param composite
+     * @param problems
+     */
+    private void expandCompositeImplementations(Composite composite) {
+        for (Component component : composite.getComponents()) {
+            Implementation implementation = component.getImplementation();
+            if (implementation instanceof Composite) {
+    
+                Composite compositeImplementation = (Composite)implementation;
+                Composite clone;
+                try {
+                    clone = (Composite)compositeImplementation.clone();
+                } catch (CloneNotSupportedException e) {
+                    throw new RuntimeException(e);
+                }
+                component.setImplementation(clone);
+                expandCompositeImplementations(clone);
+            }
+        }
+    }
+
+    /**
+     * Collect all nested composite implementations in a graph of composites.
+     * 
+     * @param composite
+     * @param nested
+     */
+    private void collectNestedComposites(Composite composite, List<Composite> nested) {
+        for (Component component : composite.getComponents()) {
+            Implementation implementation = component.getImplementation();
+            if (implementation instanceof Composite) {
+                Composite nestedComposite = (Composite)implementation;
+                nested.add(nestedComposite);
+                collectNestedComposites(nestedComposite, nested);
+            }
+        }
+    }
+
+    /**
+     * Fuse nested composites into a top level composite.
+     * 
+     * @param composite
+     */
+    private void fuseCompositeImplementations(Composite composite) {
+    
+        // First collect all nested composites
+        List<Composite> nested = new ArrayList<Composite>();
+        collectNestedComposites(composite, nested);
+    
+        // Then add all the non-composite components they contain 
+        for (Composite nestedComposite : nested) {
+            for (Component component: nestedComposite.getComponents()) {
+                Implementation implementation = component.getImplementation();
+                if (!(implementation instanceof Composite)) {
+                    composite.getComponents().add(component);
+                }
+            }
+        }
+    
+        // Clear the initial list of composite components
+        for (Iterator<Component> i = composite.getComponents().iterator(); i.hasNext();) {
+            Component component = i.next();
+            if (component.getImplementation() instanceof Composite) {
+                i.remove();
+            }
+        }
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeIncludeBuilderImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeIncludeBuilderImpl.java
new file mode 100644
index 0000000000..539ad8d137
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeIncludeBuilderImpl.java
@@ -0,0 +1,110 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+
+/**
+ * Implementation of a CompositeBuilder.
+ *
+ * @version $Rev$ $Date$
+ */
+public class CompositeIncludeBuilderImpl implements CompositeBuilder {   
+
+    private Monitor monitor;
+        
+    public CompositeIncludeBuilderImpl(Monitor monitor) {
+        this.monitor = monitor;
+    }
+      
+    public void build(Composite composite) throws CompositeBuilderException {
+        fuseIncludes(composite);
+    }
+
+    private void warning(String message, Object model, String... messageParameters) {
+        if (monitor != null){
+            Problem problem = new ProblemImpl(this.getClass().getName(), "assembly-validation-messages", Severity.WARNING, model, message, (Object[])messageParameters);
+            monitor.problem(problem);
+        }
+    }
+
+    /**
+     * Collect all includes in a graph of includes.
+     * 
+     * @param composite
+     * @param includes
+     */
+    private void collectIncludes(Composite composite, List<Composite> includes, Set<Composite> visited) {
+        for (Composite include : composite.getIncludes()) {
+            if (visited.contains(include)) {
+                warning("CompositeAlreadyIncluded", composite, include.getName().toString());
+                continue;
+            }
+                        
+            includes.add(include);
+            visited.add(include);
+            collectIncludes(include, includes, visited);
+        }
+    }
+
+    /**
+     * Copy a list of includes into a composite.
+     * 
+     * @param composite
+     */
+    private void fuseIncludes(Composite composite) {
+    
+        // First collect all includes
+        List<Composite> includes = new ArrayList<Composite>();
+        Set<Composite> visited = new HashSet<Composite>();
+        visited.add(composite);
+        collectIncludes(composite, includes, visited);
+        // Then clone them
+        for (Composite include : includes) {
+            Composite clone;
+            try {
+                clone = (Composite)include.clone();
+            } catch (CloneNotSupportedException e) {
+                throw new RuntimeException(e);
+            }
+            composite.getComponents().addAll(clone.getComponents());
+            composite.getServices().addAll(clone.getServices());
+            composite.getReferences().addAll(clone.getReferences());
+            composite.getProperties().addAll(clone.getProperties());
+            composite.getWires().addAll(clone.getWires());
+            composite.getPolicySets().addAll(clone.getPolicySets());
+            composite.getRequiredIntents().addAll(clone.getRequiredIntents());
+        }
+    
+        // Clear the list of includes
+        composite.getIncludes().clear();
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositePolicyBuilderImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositePolicyBuilderImpl.java
new file mode 100644
index 0000000000..76ed861167
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositePolicyBuilderImpl.java
@@ -0,0 +1,47 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.EndpointFactory;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
+import org.apache.tuscany.sca.monitor.Monitor;
+
+/**
+ * A composite builder that computes policy sets based on attached intents and policy sets.
+ * Useful if you want to build the model without making any runtime decisions such as
+ * reference/services matching
+ *
+ * @version $Rev$ $Date$
+ */
+public class CompositePolicyBuilderImpl extends BaseWireBuilderImpl implements CompositeBuilder {
+
+    public CompositePolicyBuilderImpl(AssemblyFactory assemblyFactory, EndpointFactory endpointFactory, InterfaceContractMapper interfaceContractMapper, Monitor monitor) {
+        super(assemblyFactory, endpointFactory, interfaceContractMapper, monitor);
+    }
+
+    public void build(Composite composite) throws CompositeBuilderException {
+        computePolicies(composite);
+    }
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositePromotionBuilderImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositePromotionBuilderImpl.java
new file mode 100644
index 0000000000..5a6437b3a3
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositePromotionBuilderImpl.java
@@ -0,0 +1,46 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.EndpointFactory;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
+import org.apache.tuscany.sca.monitor.Monitor;
+
+/**
+ * A composite builder that makes the connections between composite services and references
+ * and the services and references that they promote
+ *
+ * @version $Rev$ $Date$
+ */
+public class CompositePromotionBuilderImpl extends BaseWireBuilderImpl implements CompositeBuilder {
+
+    public CompositePromotionBuilderImpl(AssemblyFactory assemblyFactory, EndpointFactory endpointFactory, InterfaceContractMapper interfaceContractMapper, Monitor monitor) {
+        super(assemblyFactory, endpointFactory, interfaceContractMapper, monitor);
+    }
+
+    public void build(Composite composite) throws CompositeBuilderException {
+        connectCompositeReferencesAndServices(composite);
+    }
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeReferenceConfigurationBuilderImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeReferenceConfigurationBuilderImpl.java
new file mode 100644
index 0000000000..41462b151d
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeReferenceConfigurationBuilderImpl.java
@@ -0,0 +1,224 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import java.util.List;
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.CompositeReference;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.builder.AutomaticBinding;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+
+/**
+ * A composite builder that handles the configuration of composite references.
+ *
+ * @version $Rev: 651179 $ $Date: 2008-04-24 08:21:13 +0100 (Thu, 24 Apr 2008) $
+ */
+public class CompositeReferenceConfigurationBuilderImpl implements CompositeBuilder {
+    private AssemblyFactory assemblyFactory;
+
+    public CompositeReferenceConfigurationBuilderImpl(AssemblyFactory assemblyFactory) {
+        this.assemblyFactory = assemblyFactory;
+    }
+
+    public void build(Composite composite) throws CompositeBuilderException {
+
+        // Process nested composites recursively
+        configureNestedCompositeReferences(composite);
+
+        // Process top level composite references
+        for (Reference reference : composite.getReferences()) {
+            CompositeReference compositeReference = (CompositeReference)reference;
+
+            // Get the next lower level promoted reference
+            List<ComponentReference> promotedRefs = compositeReference.getPromotedReferences();
+            if (!promotedRefs.isEmpty()) {
+                if (promotedRefs.size() == 1) {
+                    ComponentReference promotedReference = promotedRefs.get(0);
+
+                    // Set the bindings using the top level bindings to override the lower level bindings
+                    if (bindingsSpecifiedManually(compositeReference.getBindings())) {
+                        compositeReference.setPromotionOverride(true);
+                    } else if (bindingsSpecifiedManually(promotedReference.getBindings()) ) {
+                        compositeReference.getBindings().clear();
+                        for (Binding binding : promotedReference.getBindings()) {
+                            try {
+                                compositeReference.getBindings().add((Binding)binding.clone());
+                            } catch (CloneNotSupportedException ex) {
+                                // this binding can't be used in the promoted reference
+                            }
+                        }
+                    }
+                    if (compositeReference.getInterfaceContract() != null &&
+                        compositeReference.getInterfaceContract().getCallbackInterface() != null) {
+                        if (compositeReference.getCallback() != null &&
+                            bindingsSpecifiedManually(compositeReference.getCallback().getBindings())) {
+                            compositeReference.setPromotionOverride(true);
+                        } else if (promotedReference.getCallback() != null &&
+                                   bindingsSpecifiedManually(promotedReference.getCallback().getBindings())) {
+                            if (compositeReference.getCallback() != null) {
+                                compositeReference.getCallback().getBindings().clear();
+                            } else {
+                                compositeReference.setCallback(assemblyFactory.createCallback());
+                            }
+                            for (Binding binding : promotedReference.getCallback().getBindings()) {
+                                try {
+                                    compositeReference.getCallback().getBindings().add((Binding)binding.clone());
+                                } catch (CloneNotSupportedException ex) {
+                                    // this binding can't be used in the promoted reference
+                                }
+                            }
+                        }
+                    }
+                } else {
+                    // This composite reference promotes multiple component references.
+                    // Because the component reference bindings can all be different, we don't
+                    // copy any of them up to this composite reference, which will therefore always
+                    // have its own binding, even if it's only the default SCA binding.
+                    if (bindingsSpecifiedManually(compositeReference.getBindings()) ||
+                        (compositeReference.getCallback() != null &&
+                         bindingsSpecifiedManually(compositeReference.getCallback().getBindings()))) {
+                        compositeReference.setPromotionOverride(true);
+                    }
+                }
+            }
+        }
+    }
+
+    private void configureNestedCompositeReferences(Composite composite) {
+
+        // Process nested composites recursively
+        for (Component component : composite.getComponents()) {
+            Implementation implementation = component.getImplementation();
+            if (implementation instanceof Composite) {
+
+                // First process nested composites
+                configureNestedCompositeReferences((Composite)implementation);
+
+                // Process the component references declared on components in this composite
+                for (ComponentReference componentReference : component.getReferences()) {
+                    Reference implReference = componentReference.getReference();
+                    if (implReference != null && implReference instanceof CompositeReference) {
+                        CompositeReference compositeReference = (CompositeReference)implReference;
+
+                        // Get the next lower level promoted reference
+                        List<ComponentReference> promotedRefs = compositeReference.getPromotedReferences();
+                        if (!promotedRefs.isEmpty()) {
+                            if (promotedRefs.size() == 1) {
+                                ComponentReference promotedReference = promotedRefs.get(0);
+
+                                // Set the bindings using the top level bindings to override the lower level bindings
+                                if (!bindingsSpecifiedManually(compositeReference.getBindings()) &&
+                                    bindingsSpecifiedManually(promotedReference.getBindings()) ) {
+                                    compositeReference.getBindings().clear();
+                                    for (Binding binding : promotedReference.getBindings()) {
+                                        try {
+                                            compositeReference.getBindings().add((Binding)binding.clone());
+                                        } catch (CloneNotSupportedException ex) {
+                                            // this binding can't be used in the promoted reference
+                                        }
+                                    }
+                                }
+                                if (bindingsSpecifiedManually(componentReference.getBindings())) {
+                                    componentReference.setPromotionOverride(true);
+                                } else if (bindingsSpecifiedManually(compositeReference.getBindings()) ) {
+                                    componentReference.getBindings().clear();
+                                    componentReference.getBindings().addAll(compositeReference.getBindings());
+                                }
+                                if (componentReference.getInterfaceContract() != null &&
+                                    componentReference.getInterfaceContract().getCallbackInterface() != null) {
+                                    if (!(compositeReference.getCallback() != null &&
+                                          bindingsSpecifiedManually(compositeReference.getCallback().getBindings())) &&
+                                        promotedReference.getCallback() != null &&
+                                        bindingsSpecifiedManually(promotedReference.getCallback().getBindings())) {
+                                        if (compositeReference.getCallback() != null) {
+                                            compositeReference.getCallback().getBindings().clear();
+                                        } else {
+                                            compositeReference.setCallback(assemblyFactory.createCallback());
+                                        }
+                                        compositeReference.getCallback().getBindings().addAll(
+                                                promotedReference.getCallback().getBindings());
+                                    }
+                                    if (componentReference.getCallback() != null &&
+                                        bindingsSpecifiedManually(componentReference.getCallback().getBindings())) {
+                                        componentReference.setPromotionOverride(true);
+                                    } else if (compositeReference.getCallback() != null &&
+                                               bindingsSpecifiedManually(compositeReference.getCallback().getBindings())) {
+                                        if (componentReference.getCallback() != null) {
+                                            componentReference.getCallback().getBindings().clear();
+                                        } else {
+                                            componentReference.setCallback(assemblyFactory.createCallback());
+                                        }
+                                        for (Binding binding : compositeReference.getCallback().getBindings()) {
+                                            try {
+                                                componentReference.getCallback().getBindings().add((Binding)binding.clone());
+                                            } catch (CloneNotSupportedException ex) {
+                                                // this binding can't be used in the promoted reference
+                                            }
+                                        }
+                                    }
+                                }
+                            } else {
+                                // This component reference promotes multiple lower-level component references.
+                                // Because the lower-level component reference bindings can all be different,
+                                // we don't copy any of them up to this component reference, which will therefore
+                                // always have its own binding, even if it's only the default SCA binding.
+                                if (bindingsSpecifiedManually(componentReference.getBindings()) ||
+                                    (componentReference.getCallback() != null &&
+                                     bindingsSpecifiedManually(componentReference.getCallback().getBindings()))) {
+                                    componentReference.setPromotionOverride(true);
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    /**
+     * If the bindings are specified in the composite file return true as they should 
+     * otherwise return false
+     *  
+     * @param bindings
+     * @return true if the bindings were specified manually
+     */
+    private boolean bindingsSpecifiedManually(List<Binding> bindings) {
+
+        if (bindings.size() > 1) {
+            return true;
+        } else if (bindings.size() == 1 &&
+                   bindings.get(0) instanceof AutomaticBinding &&
+                   ((AutomaticBinding)bindings.get(0)).getIsAutomatic()) {
+            return false;
+        } else if (bindings.size() == 1) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeReferenceWireBuilderImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeReferenceWireBuilderImpl.java
new file mode 100644
index 0000000000..8aa1897311
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeReferenceWireBuilderImpl.java
@@ -0,0 +1,96 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.CompositeReference;
+import org.apache.tuscany.sca.assembly.EndpointFactory;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.SCABinding;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+import org.apache.tuscany.sca.monitor.Monitor;
+
+/**
+ * A composite builder that wires composite references.
+ *
+ * @version $Rev$ $Date$
+ */
+public class CompositeReferenceWireBuilderImpl implements CompositeBuilder {
+    private AssemblyFactory assemblyFactory;
+    private EndpointFactory endpointFactory;
+    private Monitor monitor;
+
+    public CompositeReferenceWireBuilderImpl(AssemblyFactory assemblyFactory, EndpointFactory endpointFactory, Monitor monitor) {
+        this.assemblyFactory = assemblyFactory;
+        this.endpointFactory = endpointFactory;
+        this.monitor = monitor;
+    }
+
+    /**
+     * Wire composite references in a deployment composite.
+     * 
+     * @param composite
+     */
+    public void build(Composite composite) throws CompositeBuilderException {
+    
+        // Process composite references declared in this composite
+        for (Reference reference : composite.getReferences()) {
+            CompositeReference compositeReference = (CompositeReference)reference;
+
+            // If the composite reference is a promotion override, override the
+            // configuration of the promoted reference.  
+            //FIXME: Policy configuration or wiring of domain-level composite references
+            // doesn't cause a promotion override, unless the composite reference has
+            // additional bindings.  Do we need to detect this and force an override?
+            if (compositeReference.isPromotionOverride()) {
+                List<ComponentReference> promotedReferences =
+                    ReferenceConfigurationUtil.getPromotedComponentReferences(compositeReference);
+                for (ComponentReference promotedReference : promotedReferences) {
+                    ReferenceConfigurationUtil.reconcileReferenceBindings(
+                            compositeReference, promotedReference, assemblyFactory, endpointFactory, monitor);
+                    if (compositeReference.getInterfaceContract() != null && // can be null in unit tests
+                        compositeReference.getInterfaceContract().getCallbackInterface() != null) {
+                        SCABinding scaCallbackBinding = promotedReference.getCallbackBinding(SCABinding.class);
+                        if (promotedReference.getCallback() != null) {
+                            promotedReference.getCallback().getBindings().clear();
+                        } else {
+                            promotedReference.setCallback(assemblyFactory.createCallback());
+                        }
+                        if (scaCallbackBinding != null) {
+                            promotedReference.getCallback().getBindings().add(scaCallbackBinding);
+                        }
+                        if (compositeReference.getCallback() != null) {
+                            promotedReference.getCallback().getBindings().addAll(compositeReference.getCallback()
+                                .getBindings());
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeServiceBindingBuilderImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeServiceBindingBuilderImpl.java
new file mode 100644
index 0000000000..3aa9f3bf85
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeServiceBindingBuilderImpl.java
@@ -0,0 +1,71 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.CompositeService;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.assembly.builder.BindingBuilderExtension;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+import org.apache.tuscany.sca.monitor.Monitor;
+
+/**
+ * A composite builder that performs any additional building steps that
+ * composite service bindings may need.  Used for WSDL generation.
+ *
+ * @version $Rev$ $Date$
+ */
+public class CompositeServiceBindingBuilderImpl implements CompositeBuilder {
+    private Monitor monitor;
+
+    public CompositeServiceBindingBuilderImpl(Monitor monitor) {
+        this.monitor = monitor;
+    }
+
+    public void build(Composite composite) throws CompositeBuilderException {
+        buildServiceBindings(composite);
+    }
+    
+    private void buildServiceBindings(Composite composite) {
+        
+        // build bindings recursively
+        for (Component component : composite.getComponents()) {
+            Implementation implementation = component.getImplementation();
+            if (implementation instanceof Composite) {
+                buildServiceBindings((Composite)implementation);
+            }
+        }
+
+        // find all the composite service bindings     
+        for (Service service : composite.getServices()) {
+            for (Binding binding : service.getBindings()) {
+                if (binding instanceof BindingBuilderExtension) {
+                    Component component = ServiceConfigurationUtil.getPromotedComponent((CompositeService)service);
+                    ((BindingBuilderExtension)binding).getBuilder().build(component, service, binding, monitor);
+                }
+            }
+        }
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeServiceConfigurationBuilderImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeServiceConfigurationBuilderImpl.java
new file mode 100644
index 0000000000..a3f31ea2fa
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeServiceConfigurationBuilderImpl.java
@@ -0,0 +1,194 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import java.util.List;
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.CompositeService;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.builder.AutomaticBinding;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+
+/**
+ * A composite builder that handles the configuration of composite services.
+ *
+ * @version $Rev$ $Date$
+ */
+public class CompositeServiceConfigurationBuilderImpl implements CompositeBuilder {
+    private AssemblyFactory assemblyFactory;
+
+    public CompositeServiceConfigurationBuilderImpl(AssemblyFactory assemblyFactory) {
+        this.assemblyFactory = assemblyFactory;
+    }
+
+    public void build(Composite composite) throws CompositeBuilderException {
+
+        // Process nested composites recursively
+        configureNestedCompositeServices(composite);
+
+        // Process top level composite services
+        for (Service service : composite.getServices()) {
+            CompositeService compositeService = (CompositeService)service;
+
+            // Get the next lower level promoted service
+            ComponentService promotedService = compositeService.getPromotedService();
+            if (promotedService != null) {
+
+                // Set the bindings using the top level bindings to override the lower level bindings
+                if (!bindingsSpecifiedManually(compositeService.getBindings()) &&
+                    bindingsSpecifiedManually(promotedService.getBindings())) {
+                    compositeService.getBindings().clear();
+                    for (Binding binding : promotedService.getBindings()) {
+                        try {
+                            compositeService.getBindings().add((Binding)binding.clone());
+                        } catch (CloneNotSupportedException ex) {
+                            // this binding can't be used in the promoted service
+                        }
+                    }                    
+                }
+                if (compositeService.getInterfaceContract() != null &&
+                    compositeService.getInterfaceContract().getCallbackInterface() != null) {
+                    if (!(compositeService.getCallback() != null &&
+                          bindingsSpecifiedManually(compositeService.getCallback().getBindings())) &&
+                        promotedService.getCallback() != null &&
+                        bindingsSpecifiedManually(promotedService.getCallback().getBindings())) {
+                        if (compositeService.getCallback() != null) {
+                            compositeService.getCallback().getBindings().clear();
+                        } else {
+                            compositeService.setCallback(assemblyFactory.createCallback());
+                        }
+                        for (Binding binding : promotedService.getCallback().getBindings()) {
+                            try {
+                                compositeService.getCallback().getBindings().add((Binding)binding.clone());
+                            } catch (CloneNotSupportedException ex) {
+                                // this binding can't be used in the promoted service
+                            }
+                        }                          
+                    }
+                }
+            }
+        }
+    }
+
+    private void configureNestedCompositeServices(Composite composite) {
+
+        // Process nested composites recursively
+        for (Component component : composite.getComponents()) {
+            Implementation implementation = component.getImplementation();
+            if (implementation instanceof Composite) {
+
+                // First process nested composites
+                configureNestedCompositeServices((Composite)implementation);
+
+                // Process the component services declared on components in this composite
+                for (ComponentService componentService : component.getServices()) {
+                    Service implService = componentService.getService();
+                    if (implService != null && implService instanceof CompositeService) {
+                        CompositeService compositeService = (CompositeService)implService;
+
+                        // Get the next lower level promoted service
+                        ComponentService promotedService = compositeService.getPromotedService();
+                        if (promotedService != null) {
+
+                            // Set the bindings using the top level bindings to override the lower level bindings
+                            if (!bindingsSpecifiedManually(compositeService.getBindings()) &&
+                                bindingsSpecifiedManually(promotedService.getBindings()) ) {
+                                compositeService.getBindings().clear();
+                                for (Binding binding : promotedService.getBindings()) {
+                                    try {
+                                        compositeService.getBindings().add((Binding)binding.clone());
+                                    } catch (CloneNotSupportedException ex) {
+                                        // this binding can't be used in the promoted service
+                                    }
+                                }                    
+                            }
+                            if (!bindingsSpecifiedManually(componentService.getBindings()) &&
+                                bindingsSpecifiedManually(compositeService.getBindings()) ) {
+                                componentService.getBindings().clear();
+                                componentService.getBindings().addAll(compositeService.getBindings());
+                            }
+                            if (componentService.getInterfaceContract() != null &&
+                                componentService.getInterfaceContract().getCallbackInterface() != null) {
+                                if (!(compositeService.getCallback() != null &&
+                                      bindingsSpecifiedManually(compositeService.getCallback().getBindings())) &&
+                                    promotedService.getCallback() != null &&
+                                    bindingsSpecifiedManually(promotedService.getCallback().getBindings())) {
+                                    if (compositeService.getCallback() != null) {
+                                        compositeService.getCallback().getBindings().clear();
+                                    } else {
+                                        compositeService.setCallback(assemblyFactory.createCallback());
+                                    }
+                                    for (Binding binding : promotedService.getCallback().getBindings()) {
+                                        try {
+                                            compositeService.getCallback().getBindings().add((Binding)binding.clone());
+                                        } catch (CloneNotSupportedException ex) {
+                                            // this binding can't be used in the promoted service
+                                        }
+                                    }                          
+                                }
+                                if (!(componentService.getCallback() != null &&
+                                      bindingsSpecifiedManually(componentService.getCallback().getBindings())) &&
+                                    compositeService.getCallback() != null &&
+                                    bindingsSpecifiedManually(compositeService.getCallback().getBindings())) {
+                                    if (componentService.getCallback() != null) {
+                                        componentService.getCallback().getBindings().clear();
+                                    } else {
+                                        componentService.setCallback(assemblyFactory.createCallback());
+                                    }
+                                    componentService.getCallback().getBindings().addAll(
+                                            compositeService.getCallback().getBindings());
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    /**
+     * If the bindings are specified in the composite file return true as they should 
+     * otherwise return false
+     *  
+     * @param bindings
+     * @return true if the bindings were specified manually
+     */
+    private boolean bindingsSpecifiedManually(List<Binding> bindings) {
+
+        if (bindings.size() > 1) {
+            return true;
+        } else if (bindings.size() == 1 &&
+                   bindings.get(0) instanceof AutomaticBinding &&
+                   ((AutomaticBinding)bindings.get(0)).getIsAutomatic()) {
+            return false;
+        } else if (bindings.size() == 1) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeServicePromotionBuilderImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeServicePromotionBuilderImpl.java
new file mode 100644
index 0000000000..ea0e88ac24
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeServicePromotionBuilderImpl.java
@@ -0,0 +1,77 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.CompositeService;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+
+/**
+ * A composite builder that handles the creation of promoted composite services.
+ *
+ * @version $Rev$ $Date$
+ */
+public class CompositeServicePromotionBuilderImpl implements CompositeBuilder {
+    private AssemblyFactory assemblyFactory;
+
+    public CompositeServicePromotionBuilderImpl(AssemblyFactory assemblyFactory) {
+        this.assemblyFactory = assemblyFactory;
+    }
+
+    public void build(Composite composite) throws CompositeBuilderException {
+
+        // Process top level composite services
+        for (Service service : composite.getServices()) {
+            CompositeService compositeService = (CompositeService)service;
+
+            // Get the innermost promoted service
+            ComponentService promotedService = ServiceConfigurationUtil.getPromotedComponentService(compositeService);
+            if (promotedService != null) {
+                Component promotedComponent = ServiceConfigurationUtil.getPromotedComponent(compositeService);
+
+                // Create a new component service to represent this composite
+                // service on the promoted component
+                ComponentService newComponentService = assemblyFactory.createComponentService();
+                newComponentService.setName("$promoted$" + compositeService.getName());
+                promotedComponent.getServices().add(newComponentService);
+                newComponentService.setService(promotedService.getService());
+                newComponentService.getBindings().addAll(compositeService.getBindings());
+                newComponentService.setInterfaceContract(compositeService.getInterfaceContract());
+                if (compositeService.getInterfaceContract() != null &&
+                    compositeService.getInterfaceContract().getCallbackInterface() != null) {
+                    newComponentService.setCallback(assemblyFactory.createCallback());
+                    newComponentService.getCallback().getBindings()
+                            .addAll(compositeService.getCallback().getBindings());
+                }
+
+                // Change the composite service to now promote the newly
+                // created component service directly
+                compositeService.setPromotedComponent(promotedComponent);
+                compositeService.setPromotedService(newComponentService);
+            }
+        }
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/EndpointBuilderImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/EndpointBuilderImpl.java
new file mode 100644
index 0000000000..1698b1a9c7
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/EndpointBuilderImpl.java
@@ -0,0 +1,127 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.CompositeService;
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.builder.EndpointBuilder;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+
+/**
+ * A factory for the Endpoint model.
+ * 
+ * @version $Rev$ $Date$
+ */
+public abstract class EndpointBuilderImpl implements EndpointBuilder {
+    
+    private Monitor monitor;
+    
+    public EndpointBuilderImpl (Monitor monitor){
+        this.monitor = monitor;
+    }
+    
+    private void warning(String message, Object model, String... messageParameters) {
+        if (monitor != null){
+            Problem problem = new ProblemImpl(this.getClass().getName(), "assembly-validation-messages", Severity.WARNING, model, message, (Object[])messageParameters);
+            monitor.problem(problem);
+        }
+    }
+    
+    private void error(String message, Object model, Exception ex) {
+        if (monitor != null){
+            Problem problem = null;
+            problem = new ProblemImpl(this.getClass().getName(), "assembly-validation-messages", Severity.ERROR, model, message, ex);
+            monitor.problem(problem);
+        }
+    }
+
+    /**
+     * Resolve an endpoint against the provided target information and the 
+     * set of candidate bindings. 
+     */
+    public void build(Endpoint endpoint) {
+
+        // If this endpoint is not fully configured then don't try and resolve it
+        if (endpoint.getTargetComponentService() == null){
+            return;
+        }
+        
+        // Does the reference expect callbacks
+        boolean bidirectional = false;
+        
+        if (endpoint.getSourceComponentReference().getInterfaceContract() != null && 
+            endpoint.getSourceComponentReference().getInterfaceContract().getCallbackInterface() != null) {
+            bidirectional = true;
+        }
+        
+        // if the target service is a promoted service then find the
+        // service it promotes
+        if (endpoint.getTargetComponentService().getService() instanceof CompositeService) {
+            CompositeService compositeService = (CompositeService) endpoint.getTargetComponentService().getService();
+            // Find the promoted component service
+            ComponentService promotedComponentService = ServiceConfigurationUtil.getPromotedComponentService(compositeService);
+            if (promotedComponentService != null && !promotedComponentService.isUnresolved()) {
+                endpoint.setTargetComponentService(promotedComponentService);
+            }
+        }
+        
+        try  {
+            PolicyConfigurationUtil.determineApplicableBindingPolicySets(endpoint.getSourceComponentReference(), 
+                                                                         endpoint.getTargetComponentService());
+        } catch ( Exception e ) {
+            error("PolicyRelatedException", endpoint, e);
+        }    
+        
+
+        // Match the binding against the bindings of the target service
+        Binding resolvedBinding = BindingConfigurationUtil.matchBinding(endpoint.getTargetComponent(),
+                                                                        endpoint.getTargetComponentService(),
+                                                                        endpoint.getCandidateBindings(),
+                                                                        endpoint.getTargetComponentService().getBindings());
+        if (resolvedBinding == null) {
+            warning("NoMatchingBinding", 
+                    endpoint.getSourceComponentReference(),
+                    endpoint.getSourceComponentReference().getName(), 
+                    endpoint.getTargetComponentService().getName());
+        } else {
+            endpoint.setSourceBinding(resolvedBinding);
+        }
+        
+        if (bidirectional) {
+            Binding resolvedCallbackBinding = BindingConfigurationUtil.matchBinding(endpoint.getTargetComponent(),
+                                                                                    endpoint.getTargetComponentService(),
+                                                                                    endpoint.getSourceComponentReference().getCallback().getBindings(),
+                                                                                    endpoint.getTargetComponentService().getCallback().getBindings());
+            if (resolvedBinding == null) {
+                warning("NoMatchingCallbackBinding", 
+                        endpoint.getSourceComponentReference(),
+                        endpoint.getSourceComponentReference().getName(), 
+                        endpoint.getTargetComponentService().getName());
+            } else {
+                endpoint.setSourceCallbackBinding(resolvedCallbackBinding);
+            }
+        }       
+    }  
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PolicyConfigurationException.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PolicyConfigurationException.java
new file mode 100644
index 0000000000..944cf2cf36
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PolicyConfigurationException.java
@@ -0,0 +1,38 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+/**
+ * Exception to be throw for invalid policy intents / policysets
+ *
+ * @version $Rev$ $Date$
+ */
+public class PolicyConfigurationException extends Exception {
+    private static final long serialVersionUID = 506979037642587755L;
+    
+    public PolicyConfigurationException(String message) {
+        super(message);
+    }
+    
+    public PolicyConfigurationException(Throwable e) {
+        super(e);
+    }
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PolicyConfigurationUtil.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PolicyConfigurationUtil.java
new file mode 100644
index 0000000000..c0bc18dfaf
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PolicyConfigurationUtil.java
@@ -0,0 +1,752 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Hashtable;
+import java.util.List;
+import java.util.Map;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.assembly.Base;
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ConfiguredOperation;
+import org.apache.tuscany.sca.assembly.Contract;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.OperationsConfigurator;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.IntentAttachPoint;
+import org.apache.tuscany.sca.policy.IntentAttachPointType;
+import org.apache.tuscany.sca.policy.PolicySet;
+import org.apache.tuscany.sca.policy.PolicySetAttachPoint;
+import org.apache.tuscany.sca.policy.QualifiedIntent;
+import org.apache.tuscany.sca.policy.util.PolicyComputationUtils;
+import org.apache.tuscany.sca.policy.util.PolicyValidationException;
+import org.apache.tuscany.sca.policy.util.PolicyValidationUtils;
+
+/**
+ * This class contains policy computation methods common to computing implementation and binding policies
+ *
+ * @version $Rev$ $Date$
+ */
+abstract class PolicyConfigurationUtil {
+    
+    private static List<Intent> computeInheritableIntents(IntentAttachPointType attachPointType, 
+                                                   List<Intent> inheritableIntents) throws PolicyValidationException {
+        List<Intent> validInheritableIntents = new ArrayList<Intent>();
+        
+        //expand profile intents in inherited intents
+        PolicyComputationUtils.expandProfileIntents(inheritableIntents);
+
+        //validate if inherited intent applies to the attachpoint (binding / implementation) and 
+        //only add such intents to the attachpoint (binding / implementation)
+        for (Intent intent : inheritableIntents) {
+            if ( !intent.isUnresolved() ) { 
+                for (QName constrained : intent.getConstrains()) {
+                    if ( PolicyValidationUtils.isConstrained(constrained, attachPointType)) {
+                        validInheritableIntents.add(intent);
+                        break;
+                    }
+                }
+            } else {
+                throw new PolicyValidationException("Policy Intent '" + intent.getName() + "' is not defined in this domain");
+            }
+        }
+        
+        return validInheritableIntents;
+    }
+    
+    private static void normalizeIntents(IntentAttachPoint intentAttachPoint) {
+        //expand profile intents specified in the attachpoint (binding / implementation)
+        PolicyComputationUtils.expandProfileIntents(intentAttachPoint.getRequiredIntents());
+
+        //remove duplicates and ...
+        //where qualified form of intent exists retain it and remove the qualifiable intent
+        filterDuplicatesAndQualifiableIntents(intentAttachPoint);
+    }
+    
+    private static void trimInherentlyProvidedIntents(IntentAttachPointType attachPointType, List<Intent>intents) {
+        //exclude intents that are inherently supported by the 
+        //attachpoint-type (binding-type  / implementation-type)
+        List<Intent> requiredIntents = new ArrayList<Intent>(intents);
+        for ( Intent intent : requiredIntents ) {
+            if ( isProvidedInherently(attachPointType, intent) ) {
+                intents.remove(intent);
+            }
+        }
+    }
+    
+    
+    static void computeIntentsForOperations(IntentAttachPoint intentAttachPoint) throws PolicyValidationException {
+        if ( intentAttachPoint instanceof OperationsConfigurator ) {
+            computeIntentsForOperations((OperationsConfigurator)intentAttachPoint, 
+                                        intentAttachPoint, 
+                                        intentAttachPoint.getRequiredIntents());
+        }
+    }
+    
+    private static void computeIntentsForOperations(OperationsConfigurator opConfigurator, 
+                                               IntentAttachPoint intentAttachPoint, 
+                                               List<Intent> parentIntents) throws PolicyValidationException {
+        IntentAttachPointType attachPointType = intentAttachPoint.getType();
+        
+        boolean found = false;
+        for ( ConfiguredOperation confOp : opConfigurator.getConfiguredOperations() ) {
+            //expand profile intents specified on operations
+            PolicyComputationUtils.expandProfileIntents(confOp.getRequiredIntents());
+            
+            //validateIntents(confOp, attachPointType);
+            
+            //add intents specified for parent intent attach point (binding / implementation)
+            //wherever its not overridden in the operation
+            Intent tempIntent = null;
+            List<Intent> attachPointOpIntents = new ArrayList<Intent>();
+            for (Intent anIntent : parentIntents) {
+                found = false;
+            
+                tempIntent = anIntent;
+                while ( tempIntent instanceof QualifiedIntent ) {
+                    tempIntent = ((QualifiedIntent)tempIntent).getQualifiableIntent();
+                }
+                
+                for ( Intent opIntent : confOp.getRequiredIntents() ) {
+                    if ( opIntent.getName().getLocalPart().startsWith(tempIntent.getName().getLocalPart())) {
+                        found = true;
+                        break;
+                    }
+                }
+                
+                if ( !found ) {
+                    boolean conflict = false;
+                    for (Intent excluded : anIntent.getExcludedIntents()) {
+                        if (confOp.getRequiredIntents().contains(excluded)) {
+                            conflict = true;
+                            break;
+                        }
+                    }
+                    if (!conflict) {
+                        attachPointOpIntents.add(anIntent);
+                    }
+                }
+            }
+            
+            confOp.getRequiredIntents().addAll(attachPointOpIntents);
+            
+            //remove duplicates and ...
+            //where qualified form of intent exists retain it and remove the qualifiable intent
+            filterDuplicatesAndQualifiableIntents(confOp);
+            
+            //exclude intents that are inherently supported by the parent
+            //attachpoint-type (binding-type  / implementation-type)
+            if ( attachPointType != null ) {
+                List<Intent> requiredIntents = new ArrayList<Intent>(confOp.getRequiredIntents());
+                for ( Intent intent : requiredIntents ) {
+                    if ( isProvidedInherently(attachPointType, intent) ) {
+                        confOp.getRequiredIntents().remove(intent);
+                    }
+                }
+            }
+        }
+    }
+    
+    private static List<PolicySet> computeInheritablePolicySets(List<PolicySet> inheritablePolicySets,
+                                                           List<PolicySet> applicablePolicySets) 
+                                                               throws PolicyValidationException {
+        List<PolicySet> validInheritablePolicySets = new ArrayList<PolicySet>();
+        for (PolicySet policySet : inheritablePolicySets) {
+            if ( !policySet.isUnresolved() ) { 
+                if ( applicablePolicySets.contains(policySet) ) {
+                    validInheritablePolicySets.add(policySet);
+                }
+            } else {
+                throw new PolicyValidationException("Policy Set '" + policySet.getName()
+                        + "' is not defined in this domain  ");
+            }
+        }
+        
+        return validInheritablePolicySets;
+    }
+    
+    private static void normalizePolicySets(PolicySetAttachPoint policySetAttachPoint ) {
+        //get rid of duplicate entries
+        HashMap<QName, PolicySet> policySetTable = new HashMap<QName, PolicySet>();
+        for ( PolicySet policySet : policySetAttachPoint.getPolicySets() ) {
+            policySetTable.put(policySet.getName(), policySet);
+        }
+        
+        policySetAttachPoint.getPolicySets().clear();
+        policySetAttachPoint.getPolicySets().addAll(policySetTable.values());
+            
+        //expand profile intents
+        for ( PolicySet policySet : policySetAttachPoint.getPolicySets() ) {
+            PolicyComputationUtils.expandProfileIntents(policySet.getProvidedIntents());
+        }
+    }
+    
+    private static void computePolicySetsForOperations(List<PolicySet> applicablePolicySets,
+                                                  PolicySetAttachPoint policySetAttachPoint) 
+                                                                        throws PolicyValidationException {
+        if ( policySetAttachPoint instanceof OperationsConfigurator ) {
+            computePolicySetsForOperations(applicablePolicySets, 
+                                           (OperationsConfigurator)policySetAttachPoint, 
+                                           policySetAttachPoint);
+        }
+        
+    }
+    
+    private static void computePolicySetsForOperations(List<PolicySet> applicablePolicySets, 
+                                                  OperationsConfigurator opConfigurator,
+                                                  PolicySetAttachPoint policySetAttachPoint) 
+                                                                        throws PolicyValidationException {
+        //String appliesTo = null;
+        //String scdlFragment = "";
+        HashMap<QName, PolicySet> policySetTable = new HashMap<QName, PolicySet>();
+        IntentAttachPointType attachPointType = policySetAttachPoint.getType();
+        
+        for ( ConfiguredOperation confOp : opConfigurator.getConfiguredOperations() ) {
+            //validate policysets specified for the attachPoint
+            for (PolicySet policySet : confOp.getPolicySets()) {
+                if ( !policySet.isUnresolved() ) {
+                    //appliesTo = policySet.getAppliesTo();
+        
+                    //if (!PolicyValidationUtils.isPolicySetApplicable(scdlFragment, appliesTo, attachPointType)) {
+                    if (!applicablePolicySets.contains(policySet)) {
+                        throw new PolicyValidationException("Policy Set '" + policySet.getName() 
+                                + " specified for operation " + confOp.getName()  
+                            + "' does not constrain extension type  "
+                            + attachPointType.getName());
+        
+                    }
+                } else {
+                    throw new PolicyValidationException("Policy Set '" + policySet.getName() 
+                            + " specified for operation " + confOp.getName()  
+                        + "' is not defined in this domain  ");
+                }
+            }
+            
+            //get rid of duplicate entries
+            for ( PolicySet policySet : confOp.getPolicySets() ) {
+                policySetTable.put(policySet.getName(), policySet);
+            }
+        
+            confOp.getPolicySets().clear();
+            confOp.getPolicySets().addAll(policySetTable.values());
+            policySetTable.clear();
+            
+            //expand profile intents
+            for ( PolicySet policySet : confOp.getPolicySets() ) {
+                PolicyComputationUtils.expandProfileIntents(policySet.getProvidedIntents());
+            }
+        }
+    }
+    
+        
+    private static void trimProvidedIntents(List<Intent> requiredIntents, List<PolicySet> policySets) {
+        for ( PolicySet policySet : policySets ) {
+            trimProvidedIntents(requiredIntents, policySet);
+        }
+    }
+    
+    private static void determineApplicableDomainPolicySets(List<PolicySet> applicablePolicySets,
+                                                     PolicySetAttachPoint policySetAttachPoint,
+                                                     IntentAttachPointType intentAttachPointType) {
+
+        if (policySetAttachPoint.getRequiredIntents().size() > 0) {
+
+            // form a list of all intents required by the attach point
+            List<Intent> combinedTargetIntents = new ArrayList<Intent>();
+            combinedTargetIntents.addAll(policySetAttachPoint.getRequiredIntents());
+            for (PolicySet targetPolicySet : policySetAttachPoint.getPolicySets()) {
+                combinedTargetIntents.addAll(PolicyComputationUtils.findAndExpandProfileIntents(targetPolicySet.getProvidedIntents()));
+            }
+
+            //since the set of applicable policysets for this attachpoint is known 
+            //we only need to check in that list if there is a policyset that matches
+            for (PolicySet policySet : applicablePolicySets) {
+                // do not use the policy set if it provides intents that conflict with required intents
+                boolean conflict = false;
+                List<Intent> providedIntents = PolicyComputationUtils.findAndExpandProfileIntents(policySet.getProvidedIntents());
+                checkConflict: for (Intent intent : providedIntents) {
+                    for (Intent excluded : intent.getExcludedIntents()) {
+                        if (combinedTargetIntents.contains(excluded)) {
+                            conflict = true;
+                            break checkConflict;
+                        }
+                    }
+                }
+                if (conflict)
+                    continue;
+                int prevSize = policySetAttachPoint.getRequiredIntents().size();
+                trimProvidedIntents(policySetAttachPoint.getRequiredIntents(), policySet);
+                // if any intent was trimmed off, then this policyset must
+                // be attached to the intent attachpoint's policyset
+                if (prevSize != policySetAttachPoint.getRequiredIntents().size()) {
+                    policySetAttachPoint.getPolicySets().add(policySet);
+                }
+            } 
+        }
+    }
+    
+    private static boolean isProvidedInherently(IntentAttachPointType attachPointType, Intent intent) {
+        return ( attachPointType != null && 
+                 (( attachPointType.getAlwaysProvidedIntents() != null &&
+                     attachPointType.getAlwaysProvidedIntents().contains(intent) ) || 
+                  ( attachPointType.getMayProvideIntents() != null &&
+                     attachPointType.getMayProvideIntents().contains(intent) )
+                 ) );
+     }
+    
+    private static void trimProvidedIntents(List<Intent> requiredIntents, PolicySet policySet) {
+        for ( Intent providedIntent : policySet.getProvidedIntents() ) {
+            if ( requiredIntents.contains(providedIntent) ) {
+                requiredIntents.remove(providedIntent);
+            } 
+        }
+        
+        for ( Intent mappedIntent : policySet.getMappedPolicies().keySet() ) {
+            if ( requiredIntents.contains(mappedIntent) ) {
+                requiredIntents.remove(mappedIntent);
+            } 
+        }
+    }
+    
+    private static void filterDuplicatesAndQualifiableIntents(IntentAttachPoint intentAttachPoint) {
+        //remove duplicates
+        Map<QName, Intent> intentsTable = new HashMap<QName, Intent>();
+        for ( Intent intent : intentAttachPoint.getRequiredIntents() ) {
+            intentsTable.put(intent.getName(), intent);
+        }
+        
+        //where qualified form of intent exists retain it and remove the qualifiable intent
+        Map<QName, Intent> intentsTableCopy = new HashMap<QName, Intent>(intentsTable);
+        //if qualified form of intent exists remove the unqualified form
+        for ( Intent intent : intentsTableCopy.values() ) {
+            if ( intent instanceof QualifiedIntent ) {
+                QualifiedIntent qualifiedIntent = (QualifiedIntent)intent;
+                if ( intentsTable.get(qualifiedIntent.getQualifiableIntent().getName()) != null ) {
+                    intentsTable.remove(qualifiedIntent.getQualifiableIntent().getName());
+                }
+            }
+        }
+        intentAttachPoint.getRequiredIntents().clear();
+        intentAttachPoint.getRequiredIntents().addAll(intentsTable.values());
+    }
+    
+    private static void validateIntents(ConfiguredOperation confOp, IntentAttachPointType attachPointType) throws PolicyValidationException {
+        boolean found = false;
+        if ( attachPointType != null ) {
+            //validate intents specified against the parent (binding / implementation)
+            found = false;
+            for (Intent intent : confOp.getRequiredIntents()) {
+                if ( !intent.isUnresolved() ) {
+                    for (QName constrained : intent.getConstrains()) {
+                        if (PolicyValidationUtils.isConstrained(constrained, attachPointType)) {
+                            found = true;
+                            break;
+                        }
+                    }
+        
+                    if (!found) {
+                        throw new PolicyValidationException("Policy Intent '" + intent.getName() 
+                                + " specified for operation " + confOp.getName()  
+                            + "' does not constrain extension type  "
+                            + attachPointType.getName());
+                    }
+                } else {
+                    throw new PolicyValidationException("Policy Intent '" + intent.getName() 
+                            + " specified for operation " + confOp.getName()  
+                        + "' is not defined in this domain  ");
+                }
+            }
+        }
+    }
+
+    static void computeBindingIntentsAndPolicySets(Contract contract)  throws PolicyValidationException {
+        for (Binding binding : contract.getBindings()) {
+            if (binding instanceof PolicySetAttachPoint) {
+                PolicySetAttachPoint policiedBinding = (PolicySetAttachPoint)binding;
+                computeIntents((IntentAttachPoint)binding, contract.getRequiredIntents());
+                
+                aggregateAndPruneApplicablePolicySets(contract.getApplicablePolicySets(), 
+                                                      policiedBinding.getApplicablePolicySets());
+    
+                computePolicySets(policiedBinding, contract.getPolicySets());
+    
+                PolicyComputationUtils.checkForMutuallyExclusiveIntents(
+                    policiedBinding.getRequiredIntents(),
+                    policiedBinding.getPolicySets(),
+                    policiedBinding.getType(),
+                    contract.getName());
+    
+                if ( binding instanceof OperationsConfigurator && 
+                        contract instanceof OperationsConfigurator ) {
+                    //add or merge service operations to the binding
+                    addInheritedOpConfOnBindings((OperationsConfigurator)contract,
+                                                 (OperationsConfigurator)binding,
+                                                 (PolicySetAttachPoint)binding);
+                
+                    computeIntentsForOperations((IntentAttachPoint)binding);
+                    computePolicySetsForOperations(contract.getApplicablePolicySets(), 
+                                                   policiedBinding);
+    
+                    for ( ConfiguredOperation confOp : ((OperationsConfigurator)binding).getConfiguredOperations() ) {
+                        PolicyComputationUtils.checkForMutuallyExclusiveIntents(
+                            confOp.getRequiredIntents(),
+                            confOp.getPolicySets(),
+                            policiedBinding.getType(),
+                            contract.getName() + "." + confOp.getName());
+                    }
+    
+                }
+            }
+        }
+        
+        if ( contract.getCallback() != null ) {
+            for (Binding binding : contract.getCallback().getBindings()) {
+                if (binding instanceof PolicySetAttachPoint) {
+                    PolicySetAttachPoint policiedBinding = (PolicySetAttachPoint)binding;
+                    computeIntents((IntentAttachPoint)binding, contract.getCallback().getRequiredIntents());
+            
+                    aggregateAndPruneApplicablePolicySets(contract.getApplicablePolicySets(), 
+                                                          policiedBinding.getApplicablePolicySets());
+    
+                    computePolicySets(policiedBinding, contract.getCallback().getPolicySets());
+    
+                    PolicyComputationUtils.checkForMutuallyExclusiveIntents(
+                        policiedBinding.getRequiredIntents(),
+                        policiedBinding.getPolicySets(),
+                        policiedBinding.getType(),
+                        contract.getName() + " callback");
+    
+                }
+            }
+        }
+    }
+
+    private static void computeIntents(IntentAttachPoint policiedBinding, List<Intent> inheritedIntents) 
+                                                                    throws PolicyValidationException {
+            //since the parent component could also contain intents that apply to implementation
+            //and binding elements within, we filter out only those that apply to this binding type
+            List<Intent> prunedIntents = computeInheritableIntents(policiedBinding.getType(), 
+                                                                   inheritedIntents);
+            policiedBinding.getRequiredIntents().addAll(prunedIntents);
+            
+            normalizeIntents(policiedBinding);
+    }
+
+    private static void computePolicySets(PolicySetAttachPoint policiedBinding,
+                                   List<PolicySet> inheritedPolicySets) throws PolicyValidationException {
+                
+        List<PolicySet> prunedPolicySets = computeInheritablePolicySets(inheritedPolicySets,
+                                                                        policiedBinding.getApplicablePolicySets());
+        policiedBinding.getPolicySets().addAll(prunedPolicySets);
+        normalizePolicySets(policiedBinding);
+    }
+
+    static void determineApplicableBindingPolicySets(Contract source, Contract target) throws PolicyConfigurationException {
+        List<Intent> intentsCopy = null;
+        for (Binding aBinding : source.getBindings()) {
+            if (aBinding instanceof PolicySetAttachPoint) {
+                PolicySetAttachPoint policiedBinding = (PolicySetAttachPoint)aBinding;
+                IntentAttachPointType bindingType = policiedBinding.getType();
+    
+                
+                intentsCopy = new ArrayList<Intent>(policiedBinding.getRequiredIntents());
+                // add the target component's intents to the reference binding
+                if (target != null) {
+                    for (Intent intent : target.getRequiredIntents()) {
+                        if (!policiedBinding.getRequiredIntents().contains(intent)) {
+                            for (QName constrained : intent.getConstrains()) {
+                                if (bindingType != null && bindingType.getName().getNamespaceURI()
+                                    .equals(constrained.getNamespaceURI())
+                                    && bindingType.getName().getLocalPart().startsWith(constrained
+                                        .getLocalPart())) {
+                                    policiedBinding.getRequiredIntents().add(intent);
+                                    break;
+                                }
+                            }
+                        }
+                    }
+                }
+                
+                //trim intents specified in operations.  First check for policysets specified on the operation
+                //and then in the parent implementation
+                if ( aBinding instanceof OperationsConfigurator ) {
+                    OperationsConfigurator opConfigurator = (OperationsConfigurator)aBinding;
+                    
+                    for ( ConfiguredOperation confOp : opConfigurator.getConfiguredOperations() ) {
+                        List<Intent> opsIntentsCopy = new ArrayList<Intent>(confOp.getRequiredIntents());
+                        
+                        trimInherentlyProvidedIntents(policiedBinding.getType(), 
+                                                      confOp.getRequiredIntents());
+                        trimProvidedIntents(confOp.getRequiredIntents(), confOp.getPolicySets());
+                        trimProvidedIntents(confOp.getRequiredIntents(), policiedBinding.getPolicySets());
+                        
+                        determineApplicableDomainPolicySets(policiedBinding.getApplicablePolicySets(), 
+                                                            confOp,
+                                                            policiedBinding.getType());
+    
+                        if (confOp.getRequiredIntents().size() > 0) {
+                            throw new PolicyConfigurationException("The following are unfulfilled intents for operations configured in "
+                                    + "binding - " + aBinding.getName() + "\nUnfulfilled Intents = " +
+                                    confOp.getRequiredIntents());
+                        }
+                        
+                        //the intents list could have been trimmed when matching for policysets
+                        //since the bindings may need the original set of intents we copy that back
+                        confOp.getRequiredIntents().clear();
+                        confOp.getRequiredIntents().addAll(opsIntentsCopy);
+                        
+                    }
+                }
+    
+                trimInherentlyProvidedIntents(policiedBinding.getType(), 
+                                              policiedBinding.getRequiredIntents());
+                trimProvidedIntents(policiedBinding.getRequiredIntents(), policiedBinding
+                    .getPolicySets());
+    
+                // determine additional policysets that match remaining intents
+                // TODO: resolved to domain policy registry and attach suitable
+                // policy sets to the binding
+                // for now using the SCA Definitions instead of registry
+                // if there are intents that are not provided by any policy set
+                // throw a warning
+                determineApplicableDomainPolicySets(source, policiedBinding);
+                
+                //the intents list could have been trimmed when matching for policysets
+                //since the bindings may need the original set of intents we copy that back
+                policiedBinding.getRequiredIntents().clear();
+                policiedBinding.getRequiredIntents().addAll(intentsCopy);
+                
+            }
+        }
+    }
+
+    private static void determineApplicableDomainPolicySets(Contract contract, 
+                                                     PolicySetAttachPoint policiedBinding) 
+                                                            throws PolicyConfigurationException {
+        //if ( domainPolicySets != null) {
+            determineApplicableDomainPolicySets(policiedBinding.getApplicablePolicySets(), 
+                                                policiedBinding,
+                                                policiedBinding.getType());
+            
+            if ( policiedBinding.getRequiredIntents().size() > 0 ) {
+                if ( contract instanceof Service ) {
+                    throw new PolicyConfigurationException("The following are unfulfilled intents for " +
+                            "binding in service - " + contract.getName() + "\nUnfulfilled Intents = " + 
+                            policiedBinding.getRequiredIntents());
+                } else {
+                    throw new PolicyConfigurationException("The are unfulfilled intents for " +
+                            "binding in reference - " + contract.getName() + "\nUnfulfilled Intents = " + 
+                            policiedBinding.getRequiredIntents());
+                }
+            }
+        //}
+    }
+
+    private static void addInheritedOpConfOnBindings(OperationsConfigurator source, 
+                                              OperationsConfigurator target,
+                                              PolicySetAttachPoint attachPoint) throws PolicyValidationException {
+        boolean found = false;
+        
+        List<ConfiguredOperation> additionalOperations = new ArrayList<ConfiguredOperation>();
+        for ( ConfiguredOperation sourceConfOp : source.getConfiguredOperations() ) {
+            for ( ConfiguredOperation targetConfOp : target.getConfiguredOperations() ) {
+                if ( sourceConfOp.getName().equals(targetConfOp.getName())) {
+                    List<Intent> prunedIntents = computeInheritableIntents(attachPoint.getType(), 
+                                                                           sourceConfOp.getRequiredIntents());
+                    PolicyComputationUtils.addInheritedIntents(prunedIntents, 
+                                                               targetConfOp.getRequiredIntents());
+                    
+                    List<PolicySet> prunedPolicySets  = computeInheritablePolicySets(sourceConfOp.getPolicySets(), 
+                                                                                     attachPoint.getApplicablePolicySets());
+                    PolicyComputationUtils.addInheritedPolicySets(prunedPolicySets, targetConfOp.getPolicySets(), true);
+                    found = true;
+                    break;
+                }
+            }
+            
+            if ( !found ) {
+                additionalOperations.add(sourceConfOp);
+            }
+        }
+        
+        if ( !additionalOperations.isEmpty() ) {
+            target.getConfiguredOperations().addAll(additionalOperations);
+        }
+    }
+
+    private static void aggregateAndPruneApplicablePolicySets(List<PolicySet> source, List<PolicySet> target) {
+        target.addAll(source);
+        //strip duplicates
+        Hashtable<QName, PolicySet> policySetTable = new Hashtable<QName, PolicySet>();
+        for ( PolicySet policySet : target ) {
+            policySetTable.put(policySet.getName(), policySet);
+        }
+        
+        target.clear();
+        target.addAll(policySetTable.values());
+    }
+
+    static <C extends Contract> void inheritDefaultPolicies(Base parent, List<C> contracts) {
+    
+        for (Contract contract : contracts) {
+    
+            // The contract inherits default policies from the parent composite/component.
+            if ( parent instanceof PolicySetAttachPoint )  {
+                PolicyComputationUtils.addDefaultPolicies(
+                                         ((PolicySetAttachPoint)parent).getRequiredIntents(),
+                                         ((PolicySetAttachPoint)parent).getPolicySets(),
+                                         contract.getRequiredIntents(),
+                                         contract.getPolicySets());
+            }
+    
+            // The contract's configured operations inherit default policies from the contract.
+            for ( ConfiguredOperation confOp : contract.getConfiguredOperations() ) {
+                PolicyComputationUtils.addDefaultPolicies(
+                                         contract.getRequiredIntents(),
+                                         contract.getPolicySets(),
+                                         confOp.getRequiredIntents(),
+                                         confOp.getPolicySets());
+            }
+    
+            // The contract's callback inherits default policies from the contract.
+            if (contract.getCallback() != null) {
+                PolicyComputationUtils.addDefaultPolicies(
+                                         contract.getRequiredIntents(),
+                                         contract.getPolicySets(),
+                                         contract.getCallback().getRequiredIntents(),
+                                         contract.getCallback().getPolicySets());
+            }
+    
+        }
+    }
+
+    static void computeImplementationIntentsAndPolicySets(Implementation implementation, Component parent)  
+                                                                throws PolicyValidationException, PolicyConfigurationException {
+        if ( implementation instanceof PolicySetAttachPoint ) {
+            PolicySetAttachPoint policiedImplementation = (PolicySetAttachPoint)implementation;
+            //since for an implementation the component has its policy intents and policysets its possible
+            //that there are some intents there that does not constrain the implementation.. so prune 
+            List<Intent> prunedIntents = computeInheritableIntents(policiedImplementation.getType(), 
+                                                                   parent.getRequiredIntents());
+            parent.getRequiredIntents().clear();
+            parent.getRequiredIntents().addAll(prunedIntents);
+            normalizeIntents(parent);
+    
+            computeIntentsForOperations((OperationsConfigurator)parent,
+                                        (IntentAttachPoint)implementation,
+                                        parent.getRequiredIntents());
+            
+            
+            List<PolicySet> prunedPolicySets = computeInheritablePolicySets(parent.getPolicySets(),
+                                                                            parent.getApplicablePolicySets());
+            parent.getPolicySets().clear();
+            parent.getPolicySets().addAll(prunedPolicySets);
+            normalizePolicySets(parent);
+    
+            PolicyComputationUtils.checkForMutuallyExclusiveIntents(
+                parent.getRequiredIntents(),
+                parent.getPolicySets(),
+                policiedImplementation.getType(),
+                parent.getName());
+    
+            computePolicySetsForOperations(parent.getApplicablePolicySets(), 
+                                           (OperationsConfigurator)parent, 
+                                           (PolicySetAttachPoint)implementation);
+    
+            for ( ConfiguredOperation confOp : ((OperationsConfigurator)parent).getConfiguredOperations() ) {
+                PolicyComputationUtils.checkForMutuallyExclusiveIntents(
+                    confOp.getRequiredIntents(),
+                    confOp.getPolicySets(),
+                    policiedImplementation.getType(),
+                    parent.getName() + "." + confOp.getName());
+            }
+            
+            determineApplicableImplementationPolicySets(parent);
+    
+        }
+    }
+
+    private static void determineApplicableImplementationPolicySets(Component component) throws PolicyConfigurationException {
+        List<Intent> intentsCopy = null;
+        if ( component.getImplementation() instanceof PolicySetAttachPoint ) {
+            PolicySetAttachPoint policiedImplementation = (PolicySetAttachPoint)component.getImplementation();
+           
+            //trim intents specified in operations.  First check for policysets specified on the operation
+            //and then in the parent implementation
+            if ( component instanceof OperationsConfigurator ) {
+                OperationsConfigurator opConfigurator = (OperationsConfigurator)component;
+                
+                for ( ConfiguredOperation confOp : opConfigurator.getConfiguredOperations() ) {
+                    intentsCopy = new ArrayList<Intent>(confOp.getRequiredIntents());
+                    trimInherentlyProvidedIntents(policiedImplementation.getType(), 
+                                                  confOp.getRequiredIntents());
+                    trimProvidedIntents(confOp.getRequiredIntents(), confOp.getPolicySets());
+                    trimProvidedIntents(confOp.getRequiredIntents(), component.getPolicySets());
+                    
+                    determineApplicableDomainPolicySets(component.getApplicablePolicySets(), 
+                                                        confOp,
+                                                        policiedImplementation.getType());
+    
+                    if (confOp.getRequiredIntents().size() > 0) {
+                        throw new PolicyConfigurationException("The following are unfulfilled intents for operations configured in "
+                                + "component implementation - " + component.getName() + "\nUnfulfilled Intents = " +
+                                confOp.getRequiredIntents());
+                    }
+                    
+                    //the intents list could have been trimmed when matching for policysets
+                    //since the implementation may need the original set of intents we copy that back
+                    confOp.getRequiredIntents().clear();
+                    confOp.getRequiredIntents().addAll(intentsCopy);
+                }
+            }
+                
+            intentsCopy = new ArrayList<Intent>(component.getRequiredIntents());
+            trimInherentlyProvidedIntents(policiedImplementation.getType(), 
+                                          component.getRequiredIntents());
+            trimProvidedIntents(component.getRequiredIntents(), component.getPolicySets());
+                
+            //determine additional policysets that match remaining intents
+            //if there are intents that are not provided by any policy set throw a warning
+            //TODO: resolved to domain policy registry and attach suitable policy sets to the implementation
+            //...for now using the SCA Definitions instead of registry
+            //if ( domainPolicySets != null)  {
+                determineApplicableDomainPolicySets(component.getApplicablePolicySets(), 
+                                                    component,
+                                                    policiedImplementation.getType());
+                                                    
+                if (component.getRequiredIntents().size() > 0) {
+                    throw new PolicyConfigurationException("The following are unfulfilled intents for component implementation - " + component
+                        .getName() + "\nUnfulfilled Intents = " + component.getRequiredIntents());
+                }
+            //}
+            
+            //the intents list could have been trimmed when matching for policysets
+            //since the bindings may need the original set of intents we copy that back
+            component.getRequiredIntents().clear();
+            component.getRequiredIntents().addAll(intentsCopy);
+        }
+    }
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PrintUtil.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PrintUtil.java
new file mode 100644
index 0000000000..e85aec8cea
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PrintUtil.java
@@ -0,0 +1,273 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import java.beans.BeanInfo;
+import java.beans.IntrospectionException;
+import java.beans.Introspector;
+import java.beans.PropertyDescriptor;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.io.PrintWriter;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import org.w3c.dom.Node;
+
+/**
+ * A simple print utility class to help print model instances.
+ * 
+ * @version $Rev$ $Date$
+ */
+class PrintUtil {
+    private boolean useGetters = false;
+    private PrintWriter out;
+    private int indent;
+
+    public PrintUtil(PrintWriter out, boolean useGetters) {
+        this.out = out;
+        this.useGetters = useGetters;
+    }
+
+    public PrintUtil(OutputStream out) {
+        this.out = new PrintWriter(new OutputStreamWriter(out), true);
+    }
+
+    void indent() {
+        for (int i = 0; i < indent; i++) {
+            out.print("  ");
+        }
+    }
+
+    /**
+     * Print an object.
+     * 
+     * @param object
+     */
+    public void print(Object object) {
+        Set<Integer> objects = new HashSet<Integer>();
+        print(object, objects);
+    }
+
+    /**
+     * Print an object.
+     * 
+     * @param object
+     */
+    private void print(Object object, Set<Integer> printed) {
+        if (object == null) {
+            return;
+        }
+        int id = System.identityHashCode(object);
+        if (printed.contains(id)) {
+
+            // If we've already printed an object, print just it's HashCode
+            indent();
+            out.println(object.getClass().getName() + "@" + id);
+        } else {
+            printed.add(id);
+            try {
+
+                // Print the object class name
+                indent();
+                out.println(object.getClass().getSimpleName() + " {");
+
+                // Get the object's properties
+                ValueAccessor accessor = useGetters ? new PropertyAccessor(object) : new FieldAccessor(object);
+                for (int i = 0; i < accessor.size(); i++) {
+                    try {
+
+                        // Get the value of each property
+                        Object value = accessor.getValue(i);
+                        if (value != null) {
+
+                            // Convert array value into a list
+                            if (value.getClass().isArray()) {
+                                value = Arrays.asList((Object[])value);
+                            }
+
+                            // Print elements in a list
+                            if (value instanceof List) {
+                                if (!((List)value).isEmpty()) {
+                                    indent++;
+                                    indent();
+                                    out.println(accessor.getName(i) + "= [");
+
+                                    // Print each element, recursively
+                                    for (Object element : (List)value) {
+                                        indent++;
+                                        print(element, printed);
+                                        indent--;
+                                    }
+                                    indent();
+                                    out.println(" ]");
+                                    indent--;
+                                }
+                            } else {
+                                Class<?> valueClass = value.getClass();
+
+                                // Print a primitive, java built in type or
+                                // enum, using toString()
+                                if (valueClass.isPrimitive() || valueClass.getName().startsWith("java.")
+                                    || valueClass.getName().startsWith("javax.")
+                                    || valueClass.isEnum()) {
+                                    if (!accessor.getName(i).equals("class")) {
+                                        if (!(Boolean.FALSE.equals(value))) {
+                                            indent++;
+                                            indent();
+                                            out.println(accessor.getName(i) + "=" + value.toString());
+                                            indent--;
+                                        }
+                                    }
+                                } else if (value instanceof Node) {
+                                    indent++;
+                                    indent();
+                                    out.println(accessor.getName(i) + "=" + value.toString());
+                                    indent--;
+                                } else {
+
+                                    // Print an object, recursively
+                                    indent++;
+                                    indent();
+                                    out.println(accessor.getName(i) + "= {");
+                                    indent++;
+                                    print(value, printed);
+                                    indent--;
+                                    indent();
+                                    out.println("}");
+                                    indent--;
+                                }
+                            }
+                        }
+                    } catch (Exception e) {
+                    }
+                }
+                indent();
+                out.println("}");
+            } catch (Exception e) {
+                indent();
+                out.println(e);
+            }
+        }
+    }
+
+    public static interface ValueAccessor {
+        int size();
+
+        String getName(int i);
+
+        Object getValue(int i) throws Exception;
+    }
+
+    /**
+     * Java field reflection based value accessor
+     */
+    private static class FieldAccessor implements ValueAccessor {
+
+        private Object object;
+        private List<Field> fields;
+
+        public FieldAccessor(Object object) {
+            this.fields = getAllFields(object.getClass());
+            this.object = object;
+        }
+
+        public String getName(int i) {
+            return fields.get(i).getName();
+        }
+
+        public Object getValue(int i) throws Exception {
+            return fields.get(i).get(object);
+        }
+
+        public int size() {
+            return fields.size();
+        }
+
+    }
+
+    /**
+     * JavaBean-based value accessor
+     */
+    private static class PropertyAccessor implements ValueAccessor {
+
+        private Object object;
+        private PropertyDescriptor[] fields;
+
+        public PropertyAccessor(Object object) throws IntrospectionException {
+            BeanInfo beanInfo = Introspector.getBeanInfo(object.getClass());
+            this.fields = beanInfo.getPropertyDescriptors();
+            this.object = object;
+        }
+
+        public String getName(int i) {
+            return fields[i].getName();
+        }
+
+        public Object getValue(int i) throws Exception {
+            Method getter = fields[i].getReadMethod();
+            if (getter != null) {
+                return getter.invoke(object);
+            }
+            return null;
+        }
+
+        public int size() {
+            return fields.length;
+        }
+
+    }
+
+    /**
+     * Returns a collection of fields declared by a class
+     * or one of its supertypes
+     */
+    private static List<Field> getAllFields(Class<?> clazz) {
+        return getAllFields(clazz, new ArrayList<Field>());
+    }
+
+    /**
+     * Recursively evaluates the type hierarchy to return all fields 
+     */
+    private static List<Field> getAllFields(Class<?> clazz, List<Field> fields) {
+        if (clazz == null || clazz.isArray() || Object.class.equals(clazz)) {
+            return fields;
+        }
+        fields = getAllFields(clazz.getSuperclass(), fields);
+        Field[] declaredFields = clazz.getDeclaredFields();
+        for (final Field field : declaredFields) {
+            AccessController.doPrivileged(new PrivilegedAction<Object>() {
+                public Object run() {
+                    field.setAccessible(true); // ignore Java accessibility
+                    return null;
+                }
+            });
+            fields.add(field);
+        }
+        return fields;
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ProblemImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ProblemImpl.java
new file mode 100644
index 0000000000..03f24dfae8
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ProblemImpl.java
@@ -0,0 +1,132 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import java.util.logging.Formatter;
+import java.util.logging.Level;
+import java.util.logging.LogRecord;
+import java.util.logging.Logger;
+import java.util.logging.SimpleFormatter;
+
+import org.apache.tuscany.sca.monitor.Problem;
+
+/**
+ * Reports a composite assembly problem. 
+ *
+ * @version $Rev$ $Date$
+ */
+public class ProblemImpl implements Problem {
+
+    private String sourceClassName;
+    private String bundleName;
+    private Severity severity;
+    private Object problemObject;
+    private String messageId;
+    private Object[] messageParams;
+    private Exception cause;
+
+    /**
+     * Construct a new problem
+     * 
+     * @param sourceClassName   the class name reporting the problem
+     * @param bundleName        the name of the message bundle to use
+     * @param severity          the severity of the problem
+     * @param problemObject     the model object for which the problem is being reported
+     * @param messageId         the id of the problem message
+     * @param messageParams     the parameters of the problem message
+     */
+    public ProblemImpl(String sourceClassName, String bundleName, Severity severity, Object problemObject, String messageId, Object... messageParams ) {
+        this.sourceClassName = sourceClassName;
+        this.bundleName = bundleName;
+        this.severity = severity;
+        this.problemObject = problemObject;
+        this.messageId = messageId;
+        this.messageParams = messageParams;
+    }
+    
+    /**
+     * Construct a new problem
+     * 
+     * @param sourceClassName   the class name reporting the problem
+     * @param bundleName        the name of the message bundle to use
+     * @param severity          the severity of the problem
+     * @param problemObject     the model object for which the problem is being reported
+     * @param messageId         the id of the problem message
+     * @param cause             the exception which caused the problem
+     */
+    public ProblemImpl(String sourceClassName, String bundleName, Severity severity, Object problemObject, String messageId, Exception cause) {
+        this.sourceClassName = sourceClassName;
+        this.bundleName = bundleName;   
+        this.severity = severity;        
+        this.problemObject = problemObject;
+        this.messageId = messageId;
+        this.cause = cause;
+    }    
+
+    public String getSourceClassName() {
+        return sourceClassName;
+    }
+    
+    public String getBundleName() {
+        return bundleName;
+    }
+    
+    public Severity getSeverity() {
+        return severity;
+    }
+    
+    public Object getProblemObject() {
+        return problemObject;
+    }
+    
+    public String getMessageId() {
+        return messageId;
+    }
+
+    public Object[] getMessageParams() {
+        return messageParams;
+    }
+    
+    public Exception getCause() {
+        return cause;
+    }    
+
+    @Override
+    public String toString() {
+        Logger logger = Logger.getLogger(sourceClassName, bundleName);
+        
+        LogRecord record = new LogRecord(Level.INFO, messageId);
+        
+        if (cause == null){
+            record.setParameters(messageParams);
+            
+        } else {
+            Object[] params = new String[1];
+            params[0] = cause.toString();
+            record.setParameters(params);
+        }
+        record.setResourceBundle(logger.getResourceBundle());
+        record.setSourceClassName(sourceClassName);
+ 
+        Formatter formatter = new SimpleFormatter();
+        
+        return formatter.formatMessage(record);
+    }
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PropertyConfigurationUtil.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PropertyConfigurationUtil.java
new file mode 100644
index 0000000000..0105d4af50
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PropertyConfigurationUtil.java
@@ -0,0 +1,213 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URL;
+import java.net.URLConnection;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+import javax.xml.XMLConstants;
+import javax.xml.namespace.NamespaceContext;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.transform.Source;
+import javax.xml.transform.TransformerException;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.dom.DOMResult;
+import javax.xml.transform.sax.SAXSource;
+import javax.xml.xpath.XPathConstants;
+import javax.xml.xpath.XPathExpression;
+import javax.xml.xpath.XPathExpressionException;
+
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentProperty;
+import org.apache.tuscany.sca.assembly.Property;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.Node;
+import org.xml.sax.InputSource;
+
+/**
+ * Utility class to deal with processing of component properties that are taking values from the parent 
+ * composite's properties or an external file.
+ *
+ * @version $Rev$ $Date$
+ */
+abstract class PropertyConfigurationUtil {
+    
+    private static Document evaluate(Document node, XPathExpression expression, DocumentBuilderFactory documentBuilderFactory)
+        throws XPathExpressionException, ParserConfigurationException {
+
+        Node value = node.getDocumentElement();
+        Node result = (Node)expression.evaluate(value, XPathConstants.NODE);
+        if (result == null) {
+            return null;
+        }
+
+        // TODO: How to wrap the result into a Document?
+        Document document = documentBuilderFactory.newDocumentBuilder().newDocument();
+        if (result instanceof Document) {
+            return (Document)result;
+        } else {
+            //Element root = document.createElementNS(null, "value");
+            //document.appendChild(root);
+            document.appendChild(document.importNode(result, true));
+            return document;
+        }
+    }
+    
+    private static Document loadFromFile(String file, TransformerFactory transformerFactory) throws MalformedURLException, IOException,
+        TransformerException, ParserConfigurationException {
+        URI uri = URI.create(file);
+        // URI resolution for relative URIs is done when the composite is resolved.
+        URL url = uri.toURL();
+        URLConnection connection = url.openConnection();
+        connection.setUseCaches(false);
+        InputStream is = null;
+        try {
+            is = connection.getInputStream();
+    
+            Source streamSource = new SAXSource(new InputSource(is));
+            DOMResult result = new DOMResult();
+            javax.xml.transform.Transformer transformer = transformerFactory.newTransformer();
+            transformer.transform(streamSource, result);
+            
+            Document document = (Document)result.getNode();
+            
+            // TUSCANY-2377, Add a fake value element so it's consistent with
+            // the DOM tree loaded from inside SCDL
+            Element root = document.createElementNS(null, "value");
+            root.appendChild(document.getDocumentElement());
+            document.appendChild(root);
+            return document;
+        } finally {
+            if (is != null) {
+                is.close();
+            }
+        }
+    }
+    
+    static void sourceComponentProperties(Map<String, Property> compositeProperties,
+                                                 Component componentDefinition,
+                                                 DocumentBuilderFactory documentBuilderFactory,
+                                                 TransformerFactory transformerFactory) throws CompositeBuilderException,
+                                                                               ParserConfigurationException,
+                                                                               XPathExpressionException,
+                                                                               TransformerException,
+                                                                               IOException {
+
+        List<ComponentProperty> componentProperties = componentDefinition.getProperties();
+        for (ComponentProperty aProperty : componentProperties) {
+            String source = aProperty.getSource();
+            String file = aProperty.getFile();
+            if (source != null) {
+                // $<name>/...
+                int index = source.indexOf('/');
+                if (index == -1) {
+                    // Tolerating $prop
+                    source = source + "/";
+                    index = source.length() - 1;
+                }
+                if (source.charAt(0) == '$') {
+                    String name = source.substring(1, index);
+                    Property compositeProp = compositeProperties.get(name);
+                    if (compositeProp == null) {
+                        throw new CompositeBuilderException("The 'source' cannot be resolved to a composite property: " + source);
+                    }
+
+                    Document compositePropDefValues = (Document)compositeProp.getValue();
+
+                    // FIXME: How to deal with namespaces?
+                    Document node = evaluate(compositePropDefValues, aProperty.getSourceXPathExpression(), documentBuilderFactory);
+
+                    if (node != null) {
+                        aProperty.setValue(node);
+                    }
+                } else {
+                    throw new CompositeBuilderException("The 'source' has an invalid value: " + source);
+                }
+            } else if (file != null) {
+                aProperty.setValue(loadFromFile(aProperty.getFile(), transformerFactory));
+
+            }
+        }
+    }
+    
+    private static class DOMNamespaceContext implements NamespaceContext {
+        private Node node;
+
+        /**
+         * @param node
+         */
+        public DOMNamespaceContext(Node node) {
+            super();
+            this.node = node;
+        }
+
+        public String getNamespaceURI(String prefix) {
+            if (prefix == null) {
+                throw new IllegalArgumentException("Prefix is null");
+            } else if (XMLConstants.XML_NS_PREFIX.equals(prefix)) {
+                return XMLConstants.XML_NS_URI;
+            } else if (XMLConstants.XMLNS_ATTRIBUTE.equals(prefix)) {
+                return XMLConstants.XMLNS_ATTRIBUTE_NS_URI;
+            }
+            String ns = node.lookupNamespaceURI(prefix);
+            return ns == null ? XMLConstants.NULL_NS_URI : ns;
+        }
+
+        public String getPrefix(String namespaceURI) {
+            if (namespaceURI == null) {
+                throw new IllegalArgumentException("Namespace URI is null");
+            } else if (XMLConstants.XML_NS_URI.equals(namespaceURI)) {
+                return XMLConstants.XML_NS_PREFIX;
+            } else if (XMLConstants.XMLNS_ATTRIBUTE_NS_URI.equals(namespaceURI)) {
+                return XMLConstants.XMLNS_ATTRIBUTE;
+            }
+            return node.lookupPrefix(namespaceURI);
+        }
+
+        public Iterator<?> getPrefixes(String namespaceURI) {
+            // Not implemented
+            if (namespaceURI == null) {
+                throw new IllegalArgumentException("Namespace URI is null");
+            } else if (XMLConstants.XML_NS_URI.equals(namespaceURI)) {
+                return Arrays.asList(XMLConstants.XML_NS_PREFIX).iterator();
+            } else if (XMLConstants.XMLNS_ATTRIBUTE_NS_URI.equals(namespaceURI)) {
+                return Arrays.asList(XMLConstants.XMLNS_ATTRIBUTE).iterator();
+            }
+            String prefix = getPrefix(namespaceURI);
+            if (prefix == null) {
+                return Collections.emptyList().iterator();
+            }
+            return Arrays.asList(prefix).iterator();
+        }
+
+    }
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ReferenceConfigurationUtil.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ReferenceConfigurationUtil.java
new file mode 100644
index 0000000000..23d547efaf
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ReferenceConfigurationUtil.java
@@ -0,0 +1,264 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.CompositeReference;
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.EndpointFactory;
+import org.apache.tuscany.sca.assembly.Multiplicity;
+import org.apache.tuscany.sca.assembly.OptimizableBinding;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+
+/**
+ * This class encapsulates utility methods to deal with reference definitions
+ *
+ * @version $Rev$ $Date$
+ */
+abstract class ReferenceConfigurationUtil {
+
+    /**
+     * Report a warning.
+     * 
+     * @param problems
+     * @param message
+     * @param model
+     */
+    private static void warning(Monitor monitor, String message, Object model, String... messageParameters) {
+        if (monitor != null) {
+            Problem problem = new ProblemImpl(ReferenceConfigurationUtil.class.getName(), "assembly-validation-messages", Severity.WARNING, model, message, (Object[])messageParameters);
+            monitor.problem(problem);
+        }
+    }
+
+    static boolean isValidMultiplicityOverride(Multiplicity definedMul, Multiplicity overridenMul) {
+        if (definedMul != overridenMul) {
+            switch (definedMul) {
+                case ZERO_N:
+                    return overridenMul == Multiplicity.ZERO_ONE;
+                case ONE_N:
+                    return overridenMul == Multiplicity.ONE_ONE;
+                default:
+                    return false;
+            }
+        } else {
+            return true;
+        }
+    }
+    
+    static boolean validateMultiplicityAndTargets(Multiplicity multiplicity,
+                                                         List<?> targets, List<Binding> bindings) {
+        
+        // Count targets
+        int count = targets.size();
+        
+        //FIXME workaround, this validation is sometimes invoked too early
+        // before we get a chance to init the multiplicity attribute
+        if (multiplicity == null) {
+            return true;
+        }
+        
+        switch (multiplicity) {
+            case ZERO_N:
+                break;
+            case ZERO_ONE:
+                if (count > 1) {
+                    return false;
+                }
+                break;
+            case ONE_ONE:
+                if (count != 1) {
+                    if (count == 0) {
+                        for (Binding binding: bindings) {
+                            if (!(binding instanceof OptimizableBinding) || binding.getURI()!=null) {
+                                return true;
+                            }
+                        }
+                    }
+                    return false;
+                }
+                break;
+            case ONE_N:
+                if (count < 1) {
+                    if (count == 0) {
+                        for (Binding binding: bindings) {
+                            if (!(binding instanceof OptimizableBinding) || binding.getURI()!=null) {
+                                return true;
+                            }
+                        }
+                    }
+                    return false;
+                }
+                break;
+        }
+        return true;
+    }
+
+    /**
+     * Follow a reference promotion chain down to the innermost (non composite)
+     * component references.
+     * 
+     * @param compositeReference
+     * @return
+     */
+    static List<ComponentReference> getPromotedComponentReferences(CompositeReference compositeReference) {
+        List<ComponentReference> componentReferences = new ArrayList<ComponentReference>();
+        collectPromotedComponentReferences(compositeReference, componentReferences);
+        return componentReferences;
+    }
+
+    /**
+     * Follow a reference promotion chain down to the innermost (non composite)
+     * component references.
+     * 
+     * @param compositeReference
+     * @param componentReferences
+     * @return
+     */
+    private static void collectPromotedComponentReferences(CompositeReference compositeReference,
+                                                           List<ComponentReference> componentReferences) {
+        for (ComponentReference componentReference : compositeReference.getPromotedReferences()) {
+            Reference reference = componentReference.getReference();
+            if (reference instanceof CompositeReference) {
+    
+                // Continue to follow the reference promotion chain
+                collectPromotedComponentReferences((CompositeReference)reference, componentReferences);
+    
+            } else if (reference != null) {
+    
+                // Found a non-composite reference
+                componentReferences.add(componentReference);
+            }
+        }
+    }
+
+    /**
+     * Override the bindings for a promoted reference from an outer component
+     * reference
+     * 
+     * @param reference
+     * @param promotedReference
+     */
+    static void reconcileReferenceBindings(Reference reference,
+                                           ComponentReference promotedReference,
+                                           AssemblyFactory assemblyFactory,
+                                           EndpointFactory endpointFactory,
+                                           Monitor monitor) {
+              
+        if (promotedReference.getMultiplicity() == Multiplicity.ONE_ONE ||
+            promotedReference.getMultiplicity() == Multiplicity.ZERO_ONE) {
+            
+            // if necessary override the promoted endpoints (and bindings) with the top level bindings
+            if (reference.getBindings().size() > 0 ){
+                
+                List<Binding> bindingsToCopyDown = new ArrayList<Binding>();
+                List<Endpoint> endpointsToCopyDown = new ArrayList<Endpoint>();
+                
+                for (Binding binding : reference.getBindings()) {
+                    if ((!(binding instanceof OptimizableBinding)) || binding.getURI() != null) {
+                        bindingsToCopyDown.add(binding);
+                        
+                        if (reference instanceof ComponentReference){
+                            for (Endpoint endpoint : ((ComponentReference)reference).getEndpoints()){
+                                if ( endpoint.getSourceBinding() == binding){
+                                    endpointsToCopyDown.add(endpoint);
+                                    break;
+                                }
+                            }
+                        } else {
+                            // create a new endpoint to represent this promoted binding
+                            Endpoint endpoint = endpointFactory.createEndpoint();
+                            endpoint.setTargetName(binding.getURI());
+                            endpoint.setSourceComponent(null); // TODO - fixed up at start
+                            endpoint.setSourceComponentReference(promotedReference);  
+                            endpoint.setInterfaceContract(reference.getInterfaceContract());
+                            endpoint.setSourceBinding(binding);
+                            endpointsToCopyDown.add(endpoint); 
+                        }
+                    }
+                }
+                
+                if (bindingsToCopyDown.size() > 0) {
+                    promotedReference.getBindings().clear();
+                    promotedReference.getBindings().addAll(bindingsToCopyDown);
+                    
+                    promotedReference.getEndpoints().clear();
+                    promotedReference.getEndpoints().addAll(endpointsToCopyDown);
+                }
+            }
+            
+            if (promotedReference.getBindings().size() > 1) {
+                warning(monitor, "ComponentReferenceMoreWire", promotedReference, promotedReference.getName());                
+            }
+        } else {
+            // if necessary merge the promoted endpoints (and bindings) with the top level bindings
+            if (reference.getBindings().size() > 0 ){
+                
+                for (Binding binding : reference.getBindings()) {
+                    if ((!(binding instanceof OptimizableBinding)) || binding.getURI() != null) {
+                        promotedReference.getBindings().add(binding);
+                        
+                        if (reference instanceof ComponentReference){
+                            for (Endpoint endpoint : ((ComponentReference)reference).getEndpoints()){
+                                if ( endpoint.getSourceBinding() == binding){
+                                    promotedReference.getEndpoints().add(endpoint);
+                                    break;
+                                }
+                            }
+                        } else {
+                            // create a new endpoint to represent this promoted binding
+                            Endpoint endpoint = endpointFactory.createEndpoint();
+                            endpoint.setTargetName(binding.getURI());
+                            endpoint.setSourceComponent(null); // TODO - fixed up at start
+                            endpoint.setSourceComponentReference(promotedReference); 
+                            endpoint.setInterfaceContract(reference.getInterfaceContract());
+                            endpoint.setSourceBinding(binding);
+                            promotedReference.getEndpoints().add(endpoint); 
+                        }
+                    }
+                }                
+            }            
+        }
+        
+        Set<Binding> callbackBindings = new HashSet<Binding>();
+        if (promotedReference.getCallback() != null) {
+            callbackBindings.addAll(promotedReference.getCallback().getBindings());
+        }
+        if (reference.getCallback() != null) {
+            callbackBindings.addAll(reference.getCallback().getBindings());
+        }
+        promotedReference.setCallback(assemblyFactory.createCallback());
+        for (Binding binding : callbackBindings) {
+            if ((!(binding instanceof OptimizableBinding)) || binding.getURI() != null) {
+                promotedReference.getCallback().getBindings().add(binding);
+            }
+        }
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ServiceConfigurationUtil.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ServiceConfigurationUtil.java
new file mode 100644
index 0000000000..41a8b3f8ba
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/ServiceConfigurationUtil.java
@@ -0,0 +1,88 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.CompositeService;
+import org.apache.tuscany.sca.assembly.Service;
+
+/**
+ * This class encapsulates utility methods to deal with service definitions.
+ *
+ * @version $Rev$ $Date$
+ */
+abstract class ServiceConfigurationUtil {
+
+    /**
+     * Follow a service promotion chain down to the inner most (non composite)
+     * component service.
+     * 
+     * @param topCompositeService
+     * @return
+     */
+    static ComponentService getPromotedComponentService(CompositeService compositeService) {
+        ComponentService componentService = compositeService.getPromotedService();
+        if (componentService != null) {
+            Service service = componentService.getService();
+            if (componentService.getName() != null && service instanceof CompositeService) {
+    
+                // Continue to follow the service promotion chain
+                return getPromotedComponentService((CompositeService)service);
+    
+            } else {
+    
+                // Found a non-composite service
+                return componentService;
+            }
+        } else {
+    
+            // No promoted service
+            return null;
+        }
+    }
+
+    /**
+     * Follow a service promotion chain down to the innermost (non-composite) component.
+     * 
+     * @param compositeService
+     * @return
+     */
+    static Component getPromotedComponent(CompositeService compositeService) {
+        ComponentService componentService = compositeService.getPromotedService();
+        if (componentService != null) {
+            Service service = componentService.getService();
+            if (componentService.getName() != null && service instanceof CompositeService) {
+
+                // Continue to follow the service promotion chain
+                return getPromotedComponent((CompositeService)service);
+
+            } else {
+
+                // Found a non-composite service
+                return compositeService.getPromotedComponent();
+            }
+        } else {
+
+            // No promoted service
+            return null;
+        }
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/AbstractPropertyImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/AbstractPropertyImpl.java
new file mode 100644
index 0000000000..b7c63dc2b4
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/AbstractPropertyImpl.java
@@ -0,0 +1,114 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.assembly.AbstractProperty;
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.IntentAttachPointType;
+
+/**
+ * Represents an abstract property.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class AbstractPropertyImpl extends ExtensibleImpl implements AbstractProperty {
+    private Object value;
+    private String name;
+    private QName xsdType;
+    private QName xsdElement;
+    private boolean many;
+    private boolean mustSupply;
+    private List<Intent> requiredIntents = new ArrayList<Intent>();
+    
+
+    public List<Intent> getRequiredIntents() {
+        return requiredIntents;
+    }
+
+    /**
+     * Constructs a new abstract property.
+     */
+    protected AbstractPropertyImpl() {
+    }
+    
+    public Object getValue() {
+        return value;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public QName getXSDElement() {
+        return xsdElement;
+    }
+
+    public QName getXSDType() {
+        return xsdType;
+    }
+
+    public boolean isMany() {
+        return many;
+    }
+
+    public boolean isMustSupply() {
+        return mustSupply;
+    }
+
+    public void setValue(Object defaultValue) {
+        this.value = defaultValue;
+    }
+
+    public void setMany(boolean many) {
+        this.many = many;
+    }
+
+    public void setMustSupply(boolean mustSupply) {
+        this.mustSupply = mustSupply;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public void setXSDElement(QName element) {
+        this.xsdElement = element;
+    }
+
+    public void setXSDType(QName type) {
+        this.xsdType = type;
+    }
+
+    public IntentAttachPointType getType() {
+        return null;
+    }
+
+    public void setType(IntentAttachPointType type) {
+    }
+    
+    public void setRequiredIntents(List<Intent> intents) {
+        this.requiredIntents = intents;
+    }
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/AbstractReferenceImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/AbstractReferenceImpl.java
new file mode 100644
index 0000000000..d0ee3832c5
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/AbstractReferenceImpl.java
@@ -0,0 +1,46 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly.impl;
+
+import org.apache.tuscany.sca.assembly.AbstractReference;
+import org.apache.tuscany.sca.assembly.Multiplicity;
+
+/**
+ * Represents an abstract reference
+ * 
+ * @version $Rev$ $Date$
+ */
+public class AbstractReferenceImpl extends ContractImpl implements AbstractReference {
+    private Multiplicity multiplicity = Multiplicity.ONE_ONE;
+
+    /**
+     * Constructs a new abstract reference.
+     */
+    protected AbstractReferenceImpl() {
+    }
+    
+    public Multiplicity getMultiplicity() {
+        return multiplicity;
+    }
+
+    public void setMultiplicity(Multiplicity multiplicity) {
+        this.multiplicity = multiplicity;
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/AbstractServiceImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/AbstractServiceImpl.java
new file mode 100644
index 0000000000..346764b1b4
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/AbstractServiceImpl.java
@@ -0,0 +1,36 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly.impl;
+
+import org.apache.tuscany.sca.assembly.AbstractService;
+
+/**
+ * Represents an abstract service
+ * 
+ * @version $Rev$ $Date$
+ */
+public class AbstractServiceImpl extends ContractImpl implements AbstractService {
+    
+    /**
+     * Constructs a new abstract service.
+     */
+    protected AbstractServiceImpl() {
+    }
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/AssemblyFactoryImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/AssemblyFactoryImpl.java
new file mode 100644
index 0000000000..016a9a5b05
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/AssemblyFactoryImpl.java
@@ -0,0 +1,121 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.impl;
+
+import org.apache.tuscany.sca.assembly.AbstractProperty;
+import org.apache.tuscany.sca.assembly.AbstractReference;
+import org.apache.tuscany.sca.assembly.AbstractService;
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Callback;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentProperty;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.ComponentType;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.CompositeReference;
+import org.apache.tuscany.sca.assembly.CompositeService;
+import org.apache.tuscany.sca.assembly.ConfiguredOperation;
+import org.apache.tuscany.sca.assembly.ConstrainingType;
+import org.apache.tuscany.sca.assembly.Property;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.assembly.Wire;
+
+/**
+ * A factory for the assembly model.
+ * 
+ * @version $Rev$ $Date$
+ */
+public abstract class AssemblyFactoryImpl implements AssemblyFactory {
+
+    public AbstractProperty createAbstractProperty() {
+        return new AbstractPropertyImpl();
+    }
+
+    public AbstractReference createAbstractReference() {
+        return new AbstractReferenceImpl();
+    }
+
+    public AbstractService createAbstractService() {
+        return new AbstractServiceImpl();
+    }
+
+    public Callback createCallback() {
+        return new CallbackImpl();
+    }
+
+    public Component createComponent() {
+        return new ComponentImpl();
+    }
+
+    public ComponentProperty createComponentProperty() {
+        return new ComponentPropertyImpl();
+    }
+
+    public ComponentReference createComponentReference() {
+        return new ComponentReferenceImpl();
+    }
+
+    public ComponentService createComponentService() {
+        return new ComponentServiceImpl();
+    }
+
+    public ComponentType createComponentType() {
+        return new ComponentTypeImpl();
+    }
+
+    public Composite createComposite() {
+        return new CompositeImpl();
+    }
+
+    public CompositeReference createCompositeReference() {
+        return new CompositeReferenceImpl();
+    }
+
+    public CompositeService createCompositeService() {
+        return new CompositeServiceImpl();
+    }
+
+    public ConstrainingType createConstrainingType() {
+        return new ConstrainingTypeImpl();
+    }
+
+    public Property createProperty() {
+        return new PropertyImpl();
+    }
+
+    public Reference createReference() {
+        return new ReferenceImpl();
+    }
+
+    public Service createService() {
+        return new ServiceImpl();
+    }
+
+    public Wire createWire() {
+        return new WireImpl();
+    }
+
+    public ConfiguredOperation createConfiguredOperation() {
+        return new ConfiguredOperationImpl();
+    }
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/BaseImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/BaseImpl.java
new file mode 100644
index 0000000000..553e600bc9
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/BaseImpl.java
@@ -0,0 +1,45 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly.impl;
+
+import org.apache.tuscany.sca.assembly.Base;
+
+/**
+ * Convenience base class for assembly model objects.
+ * 
+ * @version $Rev$ $Date$
+ */
+public abstract class BaseImpl implements Base {
+    private boolean unresolved;
+
+    /**
+     * Constructs a new base model object.
+     */
+    protected BaseImpl() {
+    }
+    
+    public boolean isUnresolved() {
+        return unresolved;
+    }
+
+    public void setUnresolved(boolean undefined) {
+        this.unresolved = undefined;
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/CallbackImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/CallbackImpl.java
new file mode 100644
index 0000000000..4082d81fdb
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/CallbackImpl.java
@@ -0,0 +1,82 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Callback;
+import org.apache.tuscany.sca.assembly.ConfiguredOperation;
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.IntentAttachPointType;
+import org.apache.tuscany.sca.policy.PolicySet;
+
+/**
+ * Represents a reference.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class CallbackImpl extends ExtensibleImpl implements Callback {
+    private List<Binding> bindings = new ArrayList<Binding>();
+    private List<Intent> requiredIntents = new ArrayList<Intent>();
+    private List<PolicySet> policySets = new ArrayList<PolicySet>();
+    private List<ConfiguredOperation>  configuredOperations = new ArrayList<ConfiguredOperation>();
+    private List<PolicySet> applicablePolicySets = new ArrayList<PolicySet>(); 
+
+    public List<PolicySet> getPolicySets() {
+        return policySets;
+    }
+
+    public List<Intent> getRequiredIntents() {
+        return requiredIntents;
+    }
+
+    protected CallbackImpl() {
+    }
+
+    public List<Binding> getBindings() {
+        return bindings;
+    }
+    
+    public IntentAttachPointType getType() {
+        return null;
+    }
+
+    public void setType(IntentAttachPointType type) {
+    }
+    
+    public void setPolicySets(List<PolicySet> policySets) {
+        this.policySets = policySets; 
+    }
+
+    public void setRequiredIntents(List<Intent> intents) {
+        this.requiredIntents = intents;
+    }
+    
+    public List<ConfiguredOperation> getConfiguredOperations() {
+        return configuredOperations;
+    }
+
+    public List<PolicySet> getApplicablePolicySets() {
+        return applicablePolicySets;
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ComponentImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ComponentImpl.java
new file mode 100644
index 0000000000..34429a6703
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ComponentImpl.java
@@ -0,0 +1,174 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentProperty;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.ConfiguredOperation;
+import org.apache.tuscany.sca.assembly.ConstrainingType;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.OperationsConfigurator;
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.IntentAttachPointType;
+import org.apache.tuscany.sca.policy.PolicySet;
+
+/**
+ * Represents a component.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class ComponentImpl extends ExtensibleImpl implements Component, Cloneable, OperationsConfigurator {
+    private ConstrainingType constrainingType;
+    private Implementation implementation;
+    private String name;
+    private String uri;
+    private List<ComponentProperty> properties = new ArrayList<ComponentProperty>();
+    private List<ComponentReference> references = new ArrayList<ComponentReference>();
+    private List<ComponentService> services = new ArrayList<ComponentService>();
+    private List<Intent> requiredIntents = new ArrayList<Intent>();
+    private List<PolicySet> policySets = new ArrayList<PolicySet>();
+    private Boolean autowire;
+    private IntentAttachPointType type;
+    private List<ConfiguredOperation>  configuredImplOperations = new ArrayList<ConfiguredOperation>();
+    private List<PolicySet> applicablePolicySets = new ArrayList<PolicySet>();
+    /**
+     * Constructs a new component.
+     */
+    protected ComponentImpl() {
+    }
+
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        ComponentImpl clone = (ComponentImpl)super.clone();
+
+        clone.properties = new ArrayList<ComponentProperty>();
+        for (ComponentProperty property : getProperties()) {
+            clone.properties.add((ComponentProperty)property.clone());
+        }
+        clone.references = new ArrayList<ComponentReference>();
+        for (ComponentReference reference : getReferences()) {
+            clone.references.add((ComponentReference)reference.clone());
+        }
+        clone.services = new ArrayList<ComponentService>();
+        for (ComponentService service : getServices()) {
+            clone.services.add((ComponentService)service.clone());
+        }
+        return clone;
+    }
+
+    public String getURI() {
+        return uri;
+    }
+
+    public void setURI(String uri) {
+        this.uri = uri;
+    }
+
+    public ConstrainingType getConstrainingType() {
+        return constrainingType;
+    }
+
+    public Implementation getImplementation() {
+        return implementation;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public List<ComponentProperty> getProperties() {
+        return properties;
+    }
+
+    public List<ComponentReference> getReferences() {
+        return references;
+    }
+
+    public List<ComponentService> getServices() {
+        return services;
+    }
+
+    public void setConstrainingType(ConstrainingType constrainingType) {
+        this.constrainingType = constrainingType;
+    }
+
+    public void setImplementation(Implementation implementation) {
+        this.implementation = implementation;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public List<Intent> getRequiredIntents() {
+        return requiredIntents;
+    }
+
+    public List<PolicySet> getPolicySets() {
+        return policySets;
+    }
+
+    public boolean isAutowire() {
+        return (autowire == null) ? false : autowire.booleanValue();
+    }
+
+    public void setAutowire(Boolean autowire) {
+        this.autowire = autowire;
+    }
+    
+    public Boolean getAutowire() {
+        return autowire;
+    }
+
+    public IntentAttachPointType getType() {
+        return type;
+    }
+
+    public void setType(IntentAttachPointType type) {
+        this.type = type;
+    }
+
+    public void setPolicySets(List<PolicySet> policySets) {
+        this.policySets = policySets;
+        
+    }
+
+    public void setRequiredIntents(List<Intent> intents) {
+        this.requiredIntents = intents;
+        
+    }
+    
+    public List<ConfiguredOperation> getConfiguredOperations() {
+        return configuredImplOperations;
+    }
+
+    public void setConfiguredOperations(List<ConfiguredOperation> configuredOperations) {
+        this.configuredImplOperations = configuredOperations;
+    }
+    
+    public List<PolicySet> getApplicablePolicySets() {
+        return applicablePolicySets;
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ComponentPropertyImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ComponentPropertyImpl.java
new file mode 100644
index 0000000000..e2e7b59896
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ComponentPropertyImpl.java
@@ -0,0 +1,93 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.impl;
+
+import javax.xml.xpath.XPathExpression;
+
+import org.apache.tuscany.sca.assembly.ComponentProperty;
+import org.apache.tuscany.sca.assembly.Property;
+
+/**
+ * Represents a component property.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class ComponentPropertyImpl extends PropertyImpl implements ComponentProperty, Cloneable {
+    private String file;
+    private Property property;
+    private String source;
+    private XPathExpression sourceXPathExpression;
+    
+    /**
+     * Constructs a new component property.
+     */
+    protected ComponentPropertyImpl() {
+    }
+    
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        return super.clone();
+    }
+    
+    // FIXME getValue should not delegate to property.getValue()
+    // Doing this violates the setValue/getValue semantics, as you
+    // can call setValue() then get a different value from getValue()
+    @Override
+    public Object getValue() {
+        if (super.getValue() == null && property != null) {
+            return property.getValue();
+        } else {
+            return super.getValue();
+        }
+    }
+ 
+    public String getFile() {
+        return file;
+    }
+
+    public Property getProperty() {
+        return property;
+    }
+
+    public String getSource() {
+        return source;
+    }
+
+    public void setFile(String file) {
+        this.file = file;
+    }
+
+    public void setProperty(Property property) {
+        this.property = property;
+    }
+
+    public void setSource(String source) {
+        this.source = source;
+    }
+
+    public XPathExpression getSourceXPathExpression() {
+        return sourceXPathExpression;
+    }
+
+    public void setSourceXPathExpression(XPathExpression sourceXPathExpression) {
+        this.sourceXPathExpression = sourceXPathExpression;
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ComponentReferenceImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ComponentReferenceImpl.java
new file mode 100644
index 0000000000..488023090c
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ComponentReferenceImpl.java
@@ -0,0 +1,113 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.CompositeReference;
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+
+/**
+ * Represents a component reference
+ * 
+ * @version $Rev$ $Date$
+ */
+public class ComponentReferenceImpl extends ReferenceImpl implements ComponentReference, Cloneable {
+    private Reference reference;
+    private Boolean autowire;
+    private List<CompositeReference> promotedAs = new ArrayList<CompositeReference>();
+    private ComponentService callbackService;
+    private List<Endpoint> endpoints = new ArrayList<Endpoint>();
+
+    /**
+     * Constructs a new component reference.
+     */
+    protected ComponentReferenceImpl() {
+        // Set multiplicity to null so that by default it'll inherit from the Reference
+        setMultiplicity(null);
+    }
+
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        return super.clone();
+    }
+    
+    public Reference getReference() {
+        return reference;
+    }
+
+    public void setReference(Reference reference) {
+        this.reference = reference;
+    }
+
+    public boolean isAutowire() {
+        return (autowire == null) ? false : autowire.booleanValue();
+    }
+
+    public void setAutowire(Boolean autowire) {
+        this.autowire = autowire;
+    }
+    
+    public Boolean getAutowire() {
+        return autowire;
+    }
+
+    public List<CompositeReference> promotedAs() {
+        return promotedAs;
+    }
+
+    public ComponentService getCallbackService() {
+        return callbackService;
+    }
+
+    public void setCallbackService(ComponentService callbackService) {
+        this.callbackService = callbackService;
+    }
+    
+    public List<Endpoint> getEndpoints(){
+        return endpoints;
+    }
+    
+    /**
+     * Use endpoint information to work out what the interface contract for the
+     * binding is. 
+     */
+    @Override
+    public InterfaceContract getInterfaceContract(Binding binding){
+        InterfaceContract interfaceContract = null;
+        
+        for (Endpoint theEndpoint : endpoints){
+            if (theEndpoint.getSourceBinding() == binding){
+                interfaceContract = theEndpoint.getInterfaceContract();
+            }
+        }
+        
+        if (interfaceContract == null){
+            interfaceContract = getInterfaceContract();
+        }
+        return interfaceContract;
+    } 
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ComponentServiceImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ComponentServiceImpl.java
new file mode 100644
index 0000000000..0c78a2505f
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ComponentServiceImpl.java
@@ -0,0 +1,71 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.CompositeService;
+import org.apache.tuscany.sca.assembly.Service;
+
+/**
+ * Represents a component service
+ * 
+ * @version $Rev$ $Date$
+ */
+public class ComponentServiceImpl extends ServiceImpl implements ComponentService, Cloneable {
+    private Service service;
+    private List<CompositeService> promotedAs = new ArrayList<CompositeService>();
+    private ComponentReference callbackReference;
+    
+    /**
+     * Constructs a new component service.
+     */
+    protected ComponentServiceImpl() {
+    }
+
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        return super.clone();
+    }
+    
+    public Service getService() {
+        return service;
+    }
+
+    public void setService(Service service) {
+        this.service = service;
+    }
+
+    public List<CompositeService> promotedAs() {
+        return promotedAs;
+    }
+
+    public ComponentReference getCallbackReference() {
+        return callbackReference;
+    }
+
+    public void setCallbackReference(ComponentReference callbackReference) {
+        this.callbackReference = callbackReference;
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ComponentTypeImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ComponentTypeImpl.java
new file mode 100644
index 0000000000..bbe665d52f
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ComponentTypeImpl.java
@@ -0,0 +1,115 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.ComponentType;
+import org.apache.tuscany.sca.assembly.ConstrainingType;
+import org.apache.tuscany.sca.assembly.Property;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.Service;
+
+/** 
+ * Represents a component type.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class ComponentTypeImpl extends ExtensibleImpl implements ComponentType, Cloneable {
+    private String uri;
+    private ConstrainingType constrainingType;
+    private List<Property> properties = new ArrayList<Property>();
+    private List<Reference> references = new ArrayList<Reference>();
+    private List<Service> services = new ArrayList<Service>();
+    /**
+     * Constructs a new component type.
+     */
+    protected ComponentTypeImpl() {
+    }
+
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        ComponentTypeImpl clone = (ComponentTypeImpl)super.clone();
+
+        clone.services = new ArrayList<Service>();
+        for (Service service : getServices()) {
+            clone.services.add((Service)service.clone());
+        }
+        clone.references = new ArrayList<Reference>();
+        for (Reference reference : getReferences()) {
+            clone.references.add((Reference)reference.clone());
+        }
+        clone.properties = new ArrayList<Property>();
+        for (Property property : getProperties()) {
+            clone.properties.add((Property)property.clone());
+        }
+        return clone;
+    }
+
+    public String getURI() {
+        return uri;
+    }
+
+    public void setURI(String uri) {
+        this.uri = uri;
+    }
+
+    public ConstrainingType getConstrainingType() {
+        return constrainingType;
+    }
+
+    public List<Property> getProperties() {
+        return properties;
+    }
+
+    public List<Reference> getReferences() {
+        return references;
+    }
+
+    public List<Service> getServices() {
+        return services;
+    }
+
+    public void setConstrainingType(ConstrainingType constrainingType) {
+        this.constrainingType = constrainingType;
+    }
+
+    @Override
+    public int hashCode() {
+        return String.valueOf(getURI()).hashCode();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == this) {
+            return true;
+        } else {
+            if (obj instanceof ComponentType) {
+                if (getURI() != null) {
+                    return getURI().equals(((ComponentType)obj).getURI());
+                } else {
+                    return ((ComponentType)obj).getURI() == null;
+                }
+            } else {
+                return false;
+            }
+        }
+    }
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/CompositeImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/CompositeImpl.java
new file mode 100644
index 0000000000..a0ec95023a
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/CompositeImpl.java
@@ -0,0 +1,153 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.CompositeReference;
+import org.apache.tuscany.sca.assembly.CompositeService;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.assembly.Wire;
+
+/**
+ * Implementation of a Composite.
+ *
+ * @version $Rev$ $Date$
+ */
+public class CompositeImpl extends ImplementationImpl implements Composite, Cloneable {
+    private List<Component> components = new ArrayList<Component>();
+    private List<Composite> includes = new ArrayList<Composite>();
+    private QName name;
+    private List<Wire> wires = new ArrayList<Wire>();
+    private Boolean autowire;
+    private boolean local = true;
+
+    /**
+     * Constructs a new composite.
+     */
+    protected CompositeImpl() {
+    }
+
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        CompositeImpl clone = (CompositeImpl)super.clone();
+
+        clone.components = new ArrayList<Component>();
+        for (Component component : getComponents()) {
+            Component clonedComponent = (Component)component.clone();
+            for (Service service : clone.getServices()) {
+                CompositeService compositeService = (CompositeService)service;
+                // Force the promoted component/service to be rebuilt against the clone
+                if (compositeService.getPromotedComponent() != null) {
+                    compositeService.getPromotedComponent().setUnresolved(true);
+                }
+                if (compositeService.getPromotedService() != null) {
+                    compositeService.getPromotedService().setUnresolved(true);
+                }
+            }
+            for (Reference reference : clone.getReferences()) {
+                CompositeReference compositeReference = (CompositeReference)reference;
+                for (ComponentReference ref : compositeReference.getPromotedReferences()) {
+                    // Force the promoted reference to be rebuilt against the clone
+                    ref.setUnresolved(true);
+                }
+            }
+
+            clone.components.add(clonedComponent);
+        }
+        clone.wires = new ArrayList<Wire>();
+        for (Wire wire : getWires()) {
+            clone.wires.add((Wire)wire.clone());
+        }
+        return clone;
+    }
+
+    public List<Component> getComponents() {
+        return components;
+    }
+
+    public List<Composite> getIncludes() {
+        return includes;
+    }
+
+    public QName getName() {
+        return name;
+    }
+
+    public List<Wire> getWires() {
+        return wires;
+    }
+
+    public boolean isLocal() {
+        return local;
+    }
+
+    public void setLocal(boolean local) {
+        this.local = local;
+    }
+
+    public boolean isAutowire() {
+        return (autowire == null) ? false : autowire.booleanValue();
+    }
+
+    public void setAutowire(Boolean autowire) {
+        this.autowire = autowire;
+    }
+    
+    public Boolean getAutowire() {
+        return autowire;
+    }
+    
+    public void setName(QName name) {
+        this.name = name;
+    }
+
+    @Override
+    public int hashCode() {
+        return String.valueOf(getName()).hashCode();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == this) {
+            return true;
+        } else if (obj instanceof Composite) {
+            if (getName() != null) {
+                return getName().equals(((Composite)obj).getName());
+            } else {
+                return ((Composite)obj).getName() == null;
+            }
+        } else {
+            return false;
+        }
+    }
+    
+    @Override
+    public String toString(){
+        return getName().toString();
+    }
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/CompositeReferenceImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/CompositeReferenceImpl.java
new file mode 100644
index 0000000000..4348e08fcb
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/CompositeReferenceImpl.java
@@ -0,0 +1,51 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.CompositeReference;
+
+/**
+ * Represents a composite reference.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class CompositeReferenceImpl extends ReferenceImpl implements CompositeReference, Cloneable {
+    private List<ComponentReference> promotedReferences = new ArrayList<ComponentReference>();
+
+    /**
+     * Constructs a new composite reference.
+     */
+    protected CompositeReferenceImpl() {
+    }
+    
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        return super.clone();
+    }
+
+    public List<ComponentReference> getPromotedReferences() {
+        return promotedReferences;
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/CompositeServiceImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/CompositeServiceImpl.java
new file mode 100644
index 0000000000..6777a96982
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/CompositeServiceImpl.java
@@ -0,0 +1,62 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.impl;
+
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.CompositeService;
+
+/**
+ * Represents a composite service
+ * 
+ * @version $Rev$ $Date$
+ */
+public class CompositeServiceImpl extends ServiceImpl implements CompositeService, Cloneable {
+    private ComponentService promotedService;
+    private Component promotedComponent;
+
+    /**
+     * Constructs a new composite service.
+     */
+    protected CompositeServiceImpl() {
+    }
+
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        return super.clone();
+    }
+
+    public ComponentService getPromotedService() {
+        return promotedService;
+    }
+
+    public void setPromotedService(ComponentService promotedService) {
+        this.promotedService = promotedService;
+    }
+    
+    public Component getPromotedComponent() {
+        return promotedComponent;
+    }
+    
+    public void setPromotedComponent(Component promotedComponent) {
+        this.promotedComponent = promotedComponent;
+    }
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ConfiguredOperationImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ConfiguredOperationImpl.java
new file mode 100644
index 0000000000..1373ce511b
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ConfiguredOperationImpl.java
@@ -0,0 +1,93 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.ConfiguredOperation;
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.IntentAttachPointType;
+import org.apache.tuscany.sca.policy.PolicySet;
+
+/**
+ * Represents an Operation.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ConfiguredOperationImpl extends BaseImpl implements ConfiguredOperation {
+    private List<PolicySet> policySets = new ArrayList<PolicySet>();
+    private List<Intent> requiredIntents = new ArrayList<Intent>();
+    private List<PolicySet> applicablePolicySets = new ArrayList<PolicySet>();
+    
+    private String name;
+    private String contractName;
+
+    /**
+     * Constructs a new Operation.
+     */
+    protected ConfiguredOperationImpl() {
+    }
+    
+    public List<PolicySet> getPolicySets() {
+        return policySets;
+    }
+    
+    public void setPolicySets(List<PolicySet> policySets) {
+        this.policySets = policySets; 
+    }
+    
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+    
+    public List<Intent> getRequiredIntents() {
+        return requiredIntents;
+    }
+    
+    public void setRequiredIntents(List<Intent> intents) {
+        this.requiredIntents = intents;
+    }
+
+    public String getContractName() {
+        return contractName;
+    }
+
+    public void setContractName(String contractName) {
+        this.contractName = contractName;
+    }
+
+    public IntentAttachPointType getType() {
+        return null;
+    }
+
+    public void setType(IntentAttachPointType type) {
+    }
+
+    public List<PolicySet> getApplicablePolicySets() {
+        return applicablePolicySets;
+    }
+    
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ConstrainingTypeImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ConstrainingTypeImpl.java
new file mode 100644
index 0000000000..d5701df74e
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ConstrainingTypeImpl.java
@@ -0,0 +1,105 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.assembly.AbstractProperty;
+import org.apache.tuscany.sca.assembly.AbstractReference;
+import org.apache.tuscany.sca.assembly.AbstractService;
+import org.apache.tuscany.sca.assembly.ConstrainingType;
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.IntentAttachPointType;
+
+/**
+ * Represents a constraining type.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class ConstrainingTypeImpl extends ExtensibleImpl implements ConstrainingType {
+    private QName name;
+    private List<AbstractProperty> properties = new ArrayList<AbstractProperty>();
+    private List<AbstractReference> references = new ArrayList<AbstractReference>();
+    private List<AbstractService> services = new ArrayList<AbstractService>();
+    private List<Intent> requiredIntents = new ArrayList<Intent>();
+    
+    /**
+     * Constructs a new ConstrainingType
+     */
+    protected ConstrainingTypeImpl() {
+    }
+
+    public QName getName() {
+        return name;
+    }
+
+    public void setName(QName name) {
+        this.name = name;
+    }
+
+    public List<AbstractProperty> getProperties() {
+        return properties;
+    }
+
+    public List<AbstractReference> getReferences() {
+        return references;
+    }
+
+    public List<AbstractService> getServices() {
+        return services;
+    }
+
+    public List<Intent> getRequiredIntents() {
+        return requiredIntents;
+    }
+
+    @Override
+    public int hashCode() {
+        return String.valueOf(getName()).hashCode();
+    }
+    
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == this) {
+            return true;
+        } else if (obj instanceof ConstrainingType) {
+            if (getName() != null) {
+                return getName().equals(((ConstrainingType)obj).getName());
+            } else {
+                return ((ConstrainingType)obj).getName() == null;
+            }
+        } else {
+            return false;
+        }
+    }
+    
+    public IntentAttachPointType getType() {
+        return null;
+    }
+
+    public void setType(IntentAttachPointType type) {
+    }
+    
+    public void setRequiredIntents(List<Intent> intents) {
+        this.requiredIntents = intents;
+    }
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ContractImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ContractImpl.java
new file mode 100644
index 0000000000..491c835246
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ContractImpl.java
@@ -0,0 +1,96 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.AbstractContract;
+import org.apache.tuscany.sca.assembly.ConfiguredOperation;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.IntentAttachPointType;
+
+/**
+ * Implementation of a Contract.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ContractImpl extends ExtensibleImpl implements AbstractContract {
+    private InterfaceContract interfaceContract;
+    private String name;
+    private List<Intent> requiredIntents = new ArrayList<Intent>();
+    private List<ConfiguredOperation>  configuredOperations = new ArrayList<ConfiguredOperation>();
+    
+    private boolean isCallback = false;
+    
+    /**
+     * Constructs a new contract.
+     */
+    protected ContractImpl() {
+    }
+    
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public InterfaceContract getInterfaceContract() {
+        return interfaceContract;
+    }
+    
+    public void setInterfaceContract(InterfaceContract interfaceContract) {
+        this.interfaceContract = interfaceContract;
+    }
+    
+    public List<Intent> getRequiredIntents() {
+        return requiredIntents;
+    }
+
+    public boolean isCallback() {
+        return isCallback;
+    }
+
+    public void setIsCallback(boolean isCallback) {
+        this.isCallback = isCallback;
+    }
+
+    public IntentAttachPointType getType() {
+        return null;
+    }
+
+    public void setType(IntentAttachPointType type) {
+    }
+    
+    public void setRequiredIntents(List<Intent> intents) {
+        this.requiredIntents = intents;
+    }
+    
+    public List<ConfiguredOperation> getConfiguredOperations() {
+        return configuredOperations;
+    }
+
+    public void setConfiguredOperations(List<ConfiguredOperation> configuredOperations) {
+        this.configuredOperations = configuredOperations;
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/EndpointFactoryImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/EndpointFactoryImpl.java
new file mode 100644
index 0000000000..ece51cbe9b
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/EndpointFactoryImpl.java
@@ -0,0 +1,41 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.impl;
+
+
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.EndpointFactory;
+
+/**
+ * A factory for the Endpoint model.
+ * 
+ * @version $Rev$ $Date$
+ */
+public abstract class EndpointFactoryImpl implements EndpointFactory {
+    
+    public EndpointFactoryImpl (){
+        
+    }
+
+    public Endpoint createEndpoint() {
+        return new EndpointImpl();
+    } 
+    
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/EndpointImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/EndpointImpl.java
new file mode 100644
index 0000000000..5748abb07d
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/EndpointImpl.java
@@ -0,0 +1,154 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+
+/**
+ * The assembly model object for an endpoint.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class EndpointImpl implements Endpoint {
+   
+    private String targetName;
+        
+    private Component sourceComponent;
+    private ComponentReference sourceComponentReference;
+    private Binding resolvedBinding;
+    private Binding resolvedCallbackBinding;
+    
+    private List<Binding> candidateBindings = new ArrayList<Binding>();
+    
+    private Component targetComponent;
+    private ComponentService targetComponentService;
+    private Binding targetBinding;
+    private Binding targetCallbackBinding;
+    
+    private InterfaceContract interfaceContract;
+    
+    protected EndpointImpl() {
+    }
+          
+    public boolean isUnresolved() {
+        return resolvedBinding == null;
+    }
+    
+    public void setUnresolved(boolean unresolved) {
+        // do nothing as the status is determined by having
+        // a resolved source binding
+    }
+
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        return super.clone();
+    }
+    
+    public String getTargetName(){
+        return targetName;
+    }
+    
+    public void setTargetName(String targetName){
+        this.targetName = targetName;
+    }
+
+    public Component getSourceComponent() {
+        return sourceComponent;
+    }
+
+    public void setSourceComponent(Component sourceComponent) {
+        this.sourceComponent = sourceComponent;
+    }
+
+    public ComponentReference getSourceComponentReference() {
+        return sourceComponentReference;
+    }
+
+    public void setSourceComponentReference(ComponentReference sourceComponentReference) {
+        this.sourceComponentReference = sourceComponentReference;
+    }    
+    
+    public Binding getSourceBinding() {
+        return resolvedBinding;
+    }
+
+    public void setSourceBinding(Binding resolvedBinding) {
+        this.resolvedBinding = resolvedBinding;
+    }
+    
+    public Binding getSourceCallbackBinding(){
+        return resolvedCallbackBinding;
+    }
+
+    public void setSourceCallbackBinding(Binding resolvedCallbackBinding){
+        this.resolvedCallbackBinding = resolvedCallbackBinding;   
+    }    
+
+    public List<Binding> getCandidateBindings() {
+        return candidateBindings;
+    }
+    
+    public Component getTargetComponent() {
+        return targetComponent;
+    }
+
+    public void setTargetComponent(Component targetComponent) {
+        this.targetComponent = targetComponent;
+    }
+
+    public ComponentService getTargetComponentService() {
+        return targetComponentService;
+    }
+
+    public void setTargetComponentService(ComponentService targetComponentService) {
+        this.targetComponentService = targetComponentService;
+    }
+    
+    public Binding getTargetBinding() {
+        return targetBinding;
+    }
+
+    public void setTargetBinding(Binding targetBinding) {
+        this.targetBinding = targetBinding;
+    }
+    
+    public Binding getTargetCallbackBinding(){
+        return targetCallbackBinding;
+    }
+    
+    public void setTargetCallbackBinding(Binding targetCallbackBinding){
+        this.targetCallbackBinding = targetCallbackBinding;   
+    } 
+    
+    public InterfaceContract getInterfaceContract() {
+        return interfaceContract;
+    }
+    
+    public void setInterfaceContract(InterfaceContract interfaceContract) {
+        this.interfaceContract = interfaceContract;
+    }
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ExtensibleImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ExtensibleImpl.java
new file mode 100644
index 0000000000..9a7ca09e43
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ExtensibleImpl.java
@@ -0,0 +1,44 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Extensible;
+
+/**
+ * Convenience base class for extensible assembly model objects.
+ * 
+ * @version $Rev$ $Date$
+ */
+public abstract class ExtensibleImpl extends BaseImpl implements Extensible {
+    private List<Object> extensions = new ArrayList<Object>();
+
+    /**
+     * Constructs a new base model object.
+     */
+    protected ExtensibleImpl() {
+    }
+    
+    public List<Object> getExtensions() {
+        return extensions;
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ImplementationImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ImplementationImpl.java
new file mode 100644
index 0000000000..aa75922489
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ImplementationImpl.java
@@ -0,0 +1,75 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.ConfiguredOperation;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.OperationsConfigurator;
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.IntentAttachPointType;
+import org.apache.tuscany.sca.policy.PolicySet;
+import org.apache.tuscany.sca.policy.PolicySetAttachPoint;
+
+/**
+ * Base implementation class of Implementation model interface
+ *
+ * @version $Rev$ $Date$
+ */
+public abstract class ImplementationImpl extends ComponentTypeImpl implements Implementation, PolicySetAttachPoint,
+    OperationsConfigurator {
+
+    private List<PolicySet> applicablePolicySets = new ArrayList<PolicySet>();
+    private List<ConfiguredOperation> configuredOperations = new ArrayList<ConfiguredOperation>();
+    private IntentAttachPointType type;
+    private List<PolicySet> policySets = new ArrayList<PolicySet>();
+    private List<Intent> requiredIntents = new ArrayList<Intent>();
+
+    protected ImplementationImpl() {
+        super();
+    }
+
+    public List<PolicySet> getApplicablePolicySets() {
+        return applicablePolicySets;
+    }
+
+    public List<ConfiguredOperation> getConfiguredOperations() {
+        return configuredOperations;
+    }
+
+    public List<PolicySet> getPolicySets() {
+        return policySets;
+    }
+
+    public List<Intent> getRequiredIntents() {
+        return requiredIntents;
+    }
+
+    public IntentAttachPointType getType() {
+        return type;
+    }
+
+    public void setType(IntentAttachPointType type) {
+        this.type = type;
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/PropertyImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/PropertyImpl.java
new file mode 100644
index 0000000000..0c1051199f
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/PropertyImpl.java
@@ -0,0 +1,59 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Property;
+import org.apache.tuscany.sca.policy.PolicySet;
+
+/**
+ * Represents a property.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class PropertyImpl extends AbstractPropertyImpl implements Property, Cloneable {
+    private List<PolicySet> policySets = new ArrayList<PolicySet>();
+    private List<PolicySet> applicablePolicySets = new ArrayList<PolicySet>();
+    
+    /**
+     * Constructs a new property.
+     */
+    protected PropertyImpl() {
+    }
+    
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        return super.clone();
+    }
+
+    public List<PolicySet> getPolicySets() {
+        return policySets;
+    }
+    
+    public void setPolicySets(List<PolicySet> policySets) {
+        this.policySets = policySets; 
+    }
+
+    public List<PolicySet> getApplicablePolicySets() {
+        return applicablePolicySets;
+    }
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ReferenceImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ReferenceImpl.java
new file mode 100644
index 0000000000..1800222bfb
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ReferenceImpl.java
@@ -0,0 +1,133 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Callback;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.policy.PolicySet;
+
+/**
+ * Represents a reference.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class ReferenceImpl extends AbstractReferenceImpl implements Reference, Cloneable {
+    private List<Binding> bindings = new ArrayList<Binding>();
+    private boolean wiredByImpl;
+    private List<PolicySet> policySets = new ArrayList<PolicySet>();
+    private List<ComponentService> targets = new ArrayList<ComponentService>();
+    private Callback callback;
+    private List<PolicySet> applicablePolicySets = new ArrayList<PolicySet>();
+    private boolean promotionOverride;
+
+    public List<PolicySet> getApplicablePolicySets() {
+        return applicablePolicySets;
+    }
+
+    /**
+     * Constructs a new reference.
+     */
+    protected ReferenceImpl() {
+    }
+    
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        ReferenceImpl clone = (ReferenceImpl)super.clone();
+        clone.bindings = new ArrayList<Binding>();
+        clone.bindings.addAll(getBindings());
+        clone.targets = new ArrayList<ComponentService>();
+        clone.targets.addAll(getTargets());
+        return clone;
+    }
+
+    public List<Binding> getBindings() {
+        return bindings;
+    }
+
+    public <B> B getBinding(Class<B> bindingClass) {
+        for (Binding binding : bindings) {
+            if (bindingClass.isInstance(binding)) {
+                return bindingClass.cast(binding);
+            }
+        }
+        return null;
+    }
+
+    public <B> B getCallbackBinding(Class<B> bindingClass) {
+        if (callback != null) {
+            for (Binding binding : callback.getBindings()) {
+                if (bindingClass.isInstance(binding)) {
+                    return bindingClass.cast(binding);
+                }
+            }
+        }
+        return null;
+    }
+
+    public boolean isWiredByImpl() {
+        return wiredByImpl;
+    }
+
+    public void setWiredByImpl(boolean wiredByImpl) {
+        this.wiredByImpl = wiredByImpl;
+    }
+
+    public boolean isPromotionOverride() {
+        return promotionOverride;
+    }
+
+    public void setPromotionOverride(boolean promotionOverride) {
+        this.promotionOverride = promotionOverride;
+    }
+
+    public List<PolicySet> getPolicySets() {
+        return policySets;
+    }
+
+    public List<ComponentService> getTargets() {
+        return targets;
+    }
+
+    public Callback getCallback() {
+        return callback;
+    }
+
+    public void setCallback(Callback callback) {
+        this.callback = callback;
+    }
+    
+    public void setPolicySets(List<PolicySet> policySets) {
+        this.policySets = policySets; 
+    }
+    
+    /**
+     * By default return the interface contract for the reference
+     */
+    public InterfaceContract getInterfaceContract(Binding binding){
+        return getInterfaceContract();
+    }      
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ServiceImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ServiceImpl.java
new file mode 100644
index 0000000000..8d745cb7e1
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/ServiceImpl.java
@@ -0,0 +1,107 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Callback;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.policy.PolicySet;
+
+/**
+ * Represents a reference.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class ServiceImpl extends AbstractServiceImpl implements Service, Cloneable {
+    private List<Binding> bindings = new ArrayList<Binding>();
+    private List<PolicySet> policySets = new ArrayList<PolicySet>();
+    private Callback callback;
+    private List<PolicySet> applicablePolicySets = new ArrayList<PolicySet>();
+    
+    public List<PolicySet> getApplicablePolicySets() {
+        return applicablePolicySets;
+    }
+
+    /**
+     * Constructs a new service.
+     */
+    protected ServiceImpl() {
+    }
+    
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        ServiceImpl clone = (ServiceImpl)super.clone();
+        clone.bindings = new ArrayList<Binding>();
+        clone.bindings.addAll(getBindings());
+        return clone;
+    }
+
+    public List<Binding> getBindings() {
+        return bindings;
+    }
+
+    public <B> B getBinding(Class<B> bindingClass) {
+        for (Binding binding : bindings) {
+            if (bindingClass.isInstance(binding)) {
+                return bindingClass.cast(binding);
+            }
+        }
+        return null;
+    }
+
+    public <B> B getCallbackBinding(Class<B> bindingClass) {
+        if (callback != null) {
+            for (Binding binding : callback.getBindings()) {
+                if (bindingClass.isInstance(binding)) {
+                    return bindingClass.cast(binding);
+                }
+            }
+        }
+        return null;
+    }
+
+    public List<PolicySet> getPolicySets() {
+        return policySets;
+    }
+
+    public Callback getCallback() {
+        return callback;
+    }
+
+    public void setCallback(Callback callback) {
+        this.callback = callback;
+    }
+    
+    public void setPolicySets(List<PolicySet> policySets) {
+        this.policySets = policySets; 
+    }
+    
+    /**
+     * By default return the interface contract for the service
+     */
+    public InterfaceContract getInterfaceContract(Binding binding){
+        return getInterfaceContract();
+    }     
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/WireImpl.java b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/WireImpl.java
new file mode 100644
index 0000000000..1a7abc8564
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/impl/WireImpl.java
@@ -0,0 +1,96 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.assembly.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.Wire;
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.IntentAttachPointType;
+import org.apache.tuscany.sca.policy.PolicySet;
+
+/**
+ * Represents a wire
+ * 
+ * @version $Rev$ $Date$
+ */
+public class WireImpl extends ExtensibleImpl implements Wire, Cloneable {
+    private ComponentReference source;
+    private ComponentService target;
+    private List<Intent> requiredIntents = new ArrayList<Intent>();
+    private List<PolicySet> policySets = new ArrayList<PolicySet>();
+    private List<PolicySet> applicablePolicySets = new ArrayList<PolicySet>();
+
+    public List<PolicySet> getApplicablePolicySets() {
+        return applicablePolicySets;
+    }
+
+    /**
+     * Constructs a new wire.
+     */
+    protected WireImpl() {
+    }
+
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        return super.clone();
+    }
+
+    public ComponentReference getSource() {
+        return source;
+    }
+
+    public ComponentService getTarget() {
+        return target;
+    }
+
+    public void setSource(ComponentReference source) {
+        this.source = source;
+    }
+
+    public void setTarget(ComponentService target) {
+        this.target = target;
+    }
+
+    public List<Intent> getRequiredIntents() {
+        return requiredIntents;
+    }
+
+    public List<PolicySet> getPolicySets() {
+        return policySets;
+    }
+
+    public IntentAttachPointType getType() {
+        return null;
+    }
+
+    public void setType(IntentAttachPointType type) {
+    }
+    
+    public void setPolicySets(List<PolicySet> policySets) {
+        this.policySets = policySets; 
+    }
+
+    public void setRequiredIntents(List<Intent> intents) {
+        this.requiredIntents = intents;
+    }
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/resources/META-INF/services/org.apache.tuscany.sca.assembly.AssemblyFactory b/branches/sca-java-20080910/modules/assembly/src/main/resources/META-INF/services/org.apache.tuscany.sca.assembly.AssemblyFactory
new file mode 100644
index 0000000000..859c4bde4b
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/resources/META-INF/services/org.apache.tuscany.sca.assembly.AssemblyFactory
@@ -0,0 +1,18 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License. 
+
+org.apache.tuscany.sca.assembly.DefaultAssemblyFactory
+\ No newline at end of file
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/resources/META-INF/services/org.apache.tuscany.sca.assembly.EndpointFactory b/branches/sca-java-20080910/modules/assembly/src/main/resources/META-INF/services/org.apache.tuscany.sca.assembly.EndpointFactory
new file mode 100644
index 0000000000..8dbff76ad9
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/resources/META-INF/services/org.apache.tuscany.sca.assembly.EndpointFactory
@@ -0,0 +1,18 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License. 
+
+org.apache.tuscany.sca.assembly.DefaultEndpointFactory
+\ No newline at end of file
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/resources/assembly-validation-messages.properties b/branches/sca-java-20080910/modules/assembly/src/main/resources/assembly-validation-messages.properties
new file mode 100644
index 0000000000..6aeda18aab
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/resources/assembly-validation-messages.properties
@@ -0,0 +1,62 @@
+#
+#
+#    Licensed to the Apache Software Foundation (ASF) under one
+#    or more contributor license agreements. See the NOTICE file
+#    distributed with this work for additional information
+#    regarding copyright ownership. The ASF licenses this file
+#    to you under the Apache License, Version 2.0 (the
+#    "License"); you may not use this file except in compliance
+#    with the License. You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing,
+#    software distributed under the License is distributed on an
+#    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+#    KIND, either express or implied. See the License for the
+#    specific language governing permissions and limitations
+#    under the License.
+#
+#
+DuplicateComponentName = Duplicate component name: Composite = {0} Component = {1}
+DuplicateComponentServiceName = Duplicate component service name: Component = {0} Service = {1}
+DuplicateComponentReferenceName = Duplicate component reference name: Component = {0} Reference = {1}
+DuplicateComponentPropertyName = Duplicate component property name: Component = {0} Property = {1}
+NoComponentImplementation = No implementation for component: Component = {0}
+ServiceNotFoundForComponentService = Service not found for component service: Component = {0} Service = {1}
+UnresolvedComponentImplementation = Component implementation not found: Component = {0} Uri = {1}
+DuplicateImplementationPropertyName = Duplicate property name: Component = {0} Property = {1}
+DuplicateImplementationServiceName = Duplicate service name: Component = {0} Service = {1}
+DuplicateImplementationReferenceName = Duplicate reference name: Component = {0} Reference = {1}
+PropertyNotFound = Property not found for component property: Component = {0} Property = {1}
+PropertyMustSupplyIncompatible = Component property mustSupply attribute incompatible with property: Component = {0} Property = {1}
+PropertyMustSupplyNull = No value configured on a mustSupply property: Component = {0} Property = {1}
+PropertyOverrideManyAttribute = Component property many attribute incompatible with property: Component = {0} Property = {1}
+ReferenceNotFound = Reference not found for component reference: Component = {0} Reference = {1}
+ReferenceIncompatibleMultiplicity = Component reference multiplicity incompatible with reference multiplicity: Component = {0} Reference = {1}
+ReferenceIncompatibleInterface = Incompatible interfaces on component reference and target: Composite = {0} Reference = {1} Service = {2}
+ReferenceIncompatibleComponentInterface = Component reference interface incompatible with reference interface: Component = {0} Reference = {1}
+ServiceIncompatibleComponentInterface = Component service interface incompatible with service interface: Component = {0} Service = {1}
+MultipleBindingsForService = Multiple bindings with the same name for a service: Service = {0} Binding name = {1}
+MultipleBindingsForReference = Multiple bindings with the same name for a reference: Reference = {0} Binding name = {1}
+ReferenceWithoutTargets = No targets for reference: Composite = {0} Reference = {1}
+PromotedReferenceNotFound = Promoted component reference not found: Composite = {0} Reference = {1}
+PromotedServiceNotFound = Promoted component service not found: Composite = {0} Service = {1}
+ComponentReferenceTargetNotFound = Component reference target not found, it might be a remote service running elsewhere in the SCA Domain: Composite = {0} Service = {1}
+NoSCABindingAvailableForUnresolvedService = A local service cannot be found for reference {0} target {1} and there is no SCA binding available to represent the unresolved target
+NoMatchingBinding = Component reference {0} does not have a binding which matches the bindings of service {1}
+NoMatchingCallbackBinding = Component reference {0} does not have a callback binding which matches the callback bindings of service {1}
+ReferenceEndPointMixWithTarget = Reference {0} must not specify endpoints using both target attribute and with binding uri attribute
+PolicyRelatedException = Policy Related Exception occured due to : {0}
+CompositeAlreadyIncluded = Composite {0} has already been included.
+ComponentReferenceMoreWire = Component reference {0} has more than one wires
+WireTargetNotFound = Wire target not found : {0}
+WireSourceNotFound = Wire source not found : {0}
+WireIncompatibleInterface = Incompatible interfaces on wire source and target : source = {0} target = {1}
+ComponentIncompatibleInterface = Incompatible interfaces on component reference and target : reference = {0} target = {1}
+TooManyReferenceTargets = Too many targets on reference: {0}
+ReferenceInterfaceNotSubSet = Interface of composite reference {0} must be compatible with the interface declared by promoted component reference.
+ServiceInterfaceNotSubSet = Interface of composite service {0} must be subset of the interface declared by promoted component service.
+NoComponentReferenceTarget = No target services found for the component reference to be autowired: {0}
+NoTypeForComponentProperty = No type specified on component property: Component = {0} Property = {1}
+URLSyntaxException = URLSyntaxException when creating binding URI at component = {0} service = {1} binding = {2}
+\ No newline at end of file
diff --git a/branches/sca-java-20080910/modules/assembly/src/main/resources/assembly-validation-messages_it.properties b/branches/sca-java-20080910/modules/assembly/src/main/resources/assembly-validation-messages_it.properties
new file mode 100644
index 0000000000..b94d37ba2d
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/main/resources/assembly-validation-messages_it.properties
@@ -0,0 +1,30 @@
+#
+#
+#    Licensed to the Apache Software Foundation (ASF) under one
+#    or more contributor license agreements. See the NOTICE file
+#    distributed with this work for additional information
+#    regarding copyright ownership. The ASF licenses this file
+#    to you under the Apache License, Version 2.0 (the
+#    "License"); you may not use this file except in compliance
+#    with the License. You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing,
+#    software distributed under the License is distributed on an
+#    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+#    KIND, either express or implied. See the License for the
+#    specific language governing permissions and limitations
+#    under the License.
+#
+#
+DuplicateComponentName = Nome del componente duplicato: Composite = {0} Component = {1}
+DuplicateComponentServiceName = Nome del servizio del componente duplicato: Component = {0} Service = {1}
+DuplicateComponentReferenceName = Nome del reference del componente duplicato: Component = {0} Reference = {1}
+DuplicateComponentPropertyName = Nome della property del componente duplicato: Component = {0} Property = {1}
+NoComponentImplementation = Implementazione insistente per il componente: Component = {0}
+ServiceNotFoundForComponentService = Servizio non trovato per il componente: Component = {0} Service = {1}
+UnresolvedComponentImplementation = Implementazione del componente non trovata: Component = {0} Uri = {1}
+DuplicateImplementationPropertyName = Nome della property del componente duplicata: Component = {0} Property = {1}
+DuplicateImplementationReferenceName = Nome del riferimento duplicato: Component = {0} Reference = {1}
+PropertyNotFound = Property non trovata per il  componente: Component = {0} Property = {1}
diff --git a/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/AssemblyFactoryTestCase.java b/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/AssemblyFactoryTestCase.java
new file mode 100644
index 0000000000..8a3a89aba4
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/AssemblyFactoryTestCase.java
@@ -0,0 +1,209 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.assembly;
+
+import javax.xml.namespace.QName;
+
+import junit.framework.TestCase;
+
+
+/**
+ * Test building of assembly model instances using the assembly factory.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class AssemblyFactoryTestCase extends TestCase {
+
+    private AssemblyFactory assemblyFactory;
+
+    @Override
+    public void setUp() throws Exception {
+        assemblyFactory = new DefaultAssemblyFactory();
+    }
+
+    public void testCreateComponent() {
+        createComponent("AccountServiceComponent1");
+    }
+
+    public void testCreateComponentType() {
+        createComponentType();
+    }
+
+    public void testCreateComposite() {
+        createComposite();
+    }
+
+    public void testCreateConstrainingType() {
+        createConstrainingType();
+    }
+
+    /**
+     * Create a composite
+     */
+    Composite createComposite() {
+        Composite c = assemblyFactory.createComposite();
+
+        Component c1 = createComponent("AccountServiceComponent1");
+        c.getComponents().add(c1);
+        Component c2 = createComponent("AccountServiceComponent2");
+        c.getComponents().add(c2);
+
+        Wire w = assemblyFactory.createWire();
+        w.setSource(c1.getReferences().get(0));
+        w.setTarget(c2.getServices().get(0));
+        c.getWires().add(w);
+
+        CompositeService cs = assemblyFactory.createCompositeService();
+        cs.setName("AccountService");
+        cs.setPromotedService(c1.getServices().get(0));
+        cs.setInterfaceContract(new TestInterfaceContract(assemblyFactory));
+        c.getServices().add(cs);
+        cs.getBindings().add(new TestBinding(assemblyFactory));
+
+        CompositeReference cr = assemblyFactory.createCompositeReference();
+        cr.setName("StockQuoteService");
+        cr.getPromotedReferences().add(c2.getReferences().get(1));
+        cr.setInterfaceContract(new TestInterfaceContract(assemblyFactory));
+        c.getReferences().add(cr);
+        cr.getBindings().add(new TestBinding(assemblyFactory));
+
+        return c;
+    }
+
+    /**
+     * Create a new component
+     */
+    Component createComponent(String name) {
+        Component c = assemblyFactory.createComponent();
+        c.setName(name);
+
+        ConstrainingType constraint = createConstrainingType();
+        c.setConstrainingType(constraint);
+
+        Implementation i = new TestImplementation(assemblyFactory);
+        c.setImplementation(i);
+
+        ComponentProperty p = assemblyFactory.createComponentProperty();
+        p.setName("currency");
+        p.setValue("USD");
+        p.setMustSupply(true);
+        p.setXSDType(new QName("", ""));
+        p.setProperty(i.getProperties().get(0));
+        c.getProperties().add(p);
+
+        ComponentReference ref1 = assemblyFactory.createComponentReference();
+        ref1.setName("accountDataService");
+        ref1.setMultiplicity(Multiplicity.ONE_ONE);
+        ref1.setInterfaceContract(new TestInterfaceContract(assemblyFactory));
+        ref1.setReference(i.getReferences().get(0));
+        c.getReferences().add(ref1);
+        ref1.getBindings().add(new TestBinding(assemblyFactory));
+
+        ComponentReference ref2 = assemblyFactory.createComponentReference();
+        ref2.setName("stockQuoteService");
+        ref2.setMultiplicity(Multiplicity.ONE_ONE);
+        ref2.setInterfaceContract(new TestInterfaceContract(assemblyFactory));
+        ref2.setReference(i.getReferences().get(1));
+        c.getReferences().add(ref2);
+        ref2.getBindings().add(new TestBinding(assemblyFactory));
+
+        ComponentService s = assemblyFactory.createComponentService();
+        s.setName("AccountService");
+        s.setInterfaceContract(new TestInterfaceContract(assemblyFactory));
+        s.setService(i.getServices().get(0));
+        c.getServices().add(s);
+        s.getBindings().add(new TestBinding(assemblyFactory));
+
+        return c;
+    }
+
+    /**
+     * Create a new component type
+     * 
+     * @return
+     */
+    ComponentType createComponentType() {
+        ComponentType ctype = assemblyFactory.createComponentType();
+
+        Property p = assemblyFactory.createProperty();
+        p.setName("currency");
+        p.setValue("USD");
+        p.setMustSupply(true);
+        p.setXSDType(new QName("", ""));
+        ctype.getProperties().add(p);
+
+        Reference ref1 = assemblyFactory.createReference();
+        ref1.setName("accountDataService");
+        ref1.setInterfaceContract(new TestInterfaceContract(assemblyFactory));
+        ref1.setMultiplicity(Multiplicity.ONE_ONE);
+        ctype.getReferences().add(ref1);
+        ref1.getBindings().add(new TestBinding(assemblyFactory));
+
+        Reference ref2 = assemblyFactory.createReference();
+        ref2.setName("stockQuoteService");
+        ref2.setInterfaceContract(new TestInterfaceContract(assemblyFactory));
+        ref2.setMultiplicity(Multiplicity.ONE_ONE);
+        ctype.getReferences().add(ref2);
+        ref2.getBindings().add(new TestBinding(assemblyFactory));
+
+        Service s = assemblyFactory.createService();
+        s.setName("AccountService");
+        s.setInterfaceContract(new TestInterfaceContract(assemblyFactory));
+        ctype.getServices().add(s);
+        s.getBindings().add(new TestBinding(assemblyFactory));
+
+        return ctype;
+    }
+
+    /**
+     * Create a new constraining type
+     * 
+     * @return
+     */
+    ConstrainingType createConstrainingType() {
+        ConstrainingType ctype = assemblyFactory.createConstrainingType();
+
+        AbstractProperty p = assemblyFactory.createAbstractProperty();
+        p.setName("currency");
+        p.setValue("USD");
+        p.setMustSupply(true);
+        p.setXSDType(new QName("", ""));
+        ctype.getProperties().add(p);
+
+        AbstractReference ref1 = assemblyFactory.createAbstractReference();
+        ref1.setName("accountDataService");
+        ref1.setInterfaceContract(new TestInterfaceContract(assemblyFactory));
+        ref1.setMultiplicity(Multiplicity.ONE_ONE);
+        ctype.getReferences().add(ref1);
+
+        AbstractReference ref2 = assemblyFactory.createAbstractReference();
+        ref2.setName("stockQuoteService");
+        ref2.setInterfaceContract(new TestInterfaceContract(assemblyFactory));
+        ref2.setMultiplicity(Multiplicity.ONE_ONE);
+        ctype.getReferences().add(ref2);
+
+        AbstractService s = assemblyFactory.createAbstractService();
+        s.setName("AccountService");
+        s.setInterfaceContract(new TestInterfaceContract(assemblyFactory));
+        ctype.getServices().add(s);
+
+        return ctype;
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/TestBinding.java b/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/TestBinding.java
new file mode 100644
index 0000000000..5e0a2335d1
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/TestBinding.java
@@ -0,0 +1,56 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.assembly;
+
+
+/**
+ * A test interface model.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class TestBinding implements Binding {
+    public TestBinding(AssemblyFactory factory) {
+    }
+
+    public String getName() {
+        return null;
+    }
+
+    public String getURI() {
+        return "http://test";
+    }
+
+    public void setName(String name) {
+    }
+
+    public void setURI(String uri) {
+    }
+
+    public void setUnresolved(boolean unresolved) {
+    }
+    
+    public boolean isUnresolved() {
+        return false;
+    }
+
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        return super.clone();
+    }     
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/TestImplementation.java b/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/TestImplementation.java
new file mode 100644
index 0000000000..19702954c9
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/TestImplementation.java
@@ -0,0 +1,61 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.assembly;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.assembly.impl.ImplementationImpl;
+
+/**
+ * A test component implementation model.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class TestImplementation extends ImplementationImpl implements Implementation {
+    public TestImplementation(AssemblyFactory factory) {
+
+        Property p = factory.createProperty();
+        p.setName("currency");
+        p.setValue("USD");
+        p.setMustSupply(true);
+        p.setXSDType(new QName("", ""));
+        getProperties().add(p);
+
+        Reference ref1 = factory.createReference();
+        ref1.setName("accountDataService");
+        ref1.setMultiplicity(Multiplicity.ONE_ONE);
+        getReferences().add(ref1);
+        ref1.getBindings().add(new TestBinding(factory));
+
+        Reference ref2 = factory.createReference();
+        ref2.setName("stockQuoteService");
+        ref2.setMultiplicity(Multiplicity.ONE_ONE);
+        ref2.setInterfaceContract(new TestInterfaceContract(factory));
+        getReferences().add(ref2);
+        ref2.getBindings().add(new TestBinding(factory));
+
+        Service s = factory.createService();
+        s.setName("AccountService");
+        s.setInterfaceContract(new TestInterfaceContract(factory));
+        getServices().add(s);
+        s.getBindings().add(new TestBinding(factory));
+
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/TestInterface.java b/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/TestInterface.java
new file mode 100644
index 0000000000..dbe0cb8225
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/TestInterface.java
@@ -0,0 +1,42 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.assembly;
+
+import org.apache.tuscany.sca.interfacedef.Interface;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.impl.InterfaceImpl;
+
+/**
+ * A test interface model.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class TestInterface extends InterfaceImpl implements Interface {
+
+    public TestInterface(AssemblyFactory factory) {
+
+        setRemotable(true);
+
+        Operation operation = new TestOperation();
+        operation.setName("test");
+        getOperations().add(operation);
+
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/TestInterfaceContract.java b/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/TestInterfaceContract.java
new file mode 100644
index 0000000000..ee6b95edc9
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/TestInterfaceContract.java
@@ -0,0 +1,41 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.assembly;
+
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.interfacedef.impl.InterfaceContractImpl;
+
+/**
+ * A test interface contract model.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class TestInterfaceContract extends InterfaceContractImpl implements InterfaceContract {
+
+    public TestInterfaceContract(AssemblyFactory factory) {
+        
+        TestInterface testInterface = new TestInterface(factory);
+        setInterface(testInterface);
+
+        TestInterface testCallbackInterface = new TestInterface(factory);
+        setCallbackInterface(testCallbackInterface);
+
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/TestOperation.java b/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/TestOperation.java
new file mode 100644
index 0000000000..d94a7e93a3
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/TestOperation.java
@@ -0,0 +1,30 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.assembly;
+
+import org.apache.tuscany.sca.interfacedef.impl.OperationImpl;
+
+/**
+ * A test operation model.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class TestOperation extends OperationImpl {
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeBuilderTestCase.java b/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeBuilderTestCase.java
new file mode 100644
index 0000000000..fabafc998b
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeBuilderTestCase.java
@@ -0,0 +1,128 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import javax.xml.namespace.QName;
+
+import junit.framework.TestCase;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.CompositeReference;
+import org.apache.tuscany.sca.assembly.CompositeService;
+import org.apache.tuscany.sca.assembly.DefaultAssemblyFactory;
+
+/**
+ * Test the CompositeBuilder.
+ *
+ * @version $Rev$ $Date$
+ */
+public class CompositeBuilderTestCase extends TestCase {
+    
+    private AssemblyFactory assemblyFactory;
+    
+    @Override
+    protected void setUp() throws Exception {
+        assemblyFactory = new DefaultAssemblyFactory();
+    }
+    
+    public void testFuseIncludes() throws Exception {
+        Composite c1 = assemblyFactory.createComposite();
+        c1.setName(new QName("http://foo", "C1"));
+        Component a = assemblyFactory.createComponent();
+        a.setName("a");
+        c1.getComponents().add(a);
+        CompositeService s = assemblyFactory.createCompositeService();
+        s.setName("s");
+        c1.getServices().add(s);
+        CompositeReference r = assemblyFactory.createCompositeReference();
+        r.setName("r");
+        c1.getReferences().add(r);
+
+        Composite c2 = assemblyFactory.createComposite();
+        c2.setName(new QName("http://foo", "C2"));
+        c1.getIncludes().add(c2);
+        Component b = assemblyFactory.createComponent();
+        b.setName("b");
+        c2.getComponents().add(b);
+        
+        Composite c = assemblyFactory.createComposite();
+        c.setName(new QName("http://foo", "C"));
+        c.getIncludes().add(c1);
+        
+        new CompositeIncludeBuilderImpl(null).build(c);
+        
+        assertTrue(c.getComponents().get(0).getName().equals("a"));
+        assertTrue(c.getComponents().get(1).getName().equals("b"));
+        assertTrue(c.getServices().get(0).getName().equals("s"));
+        assertTrue(c.getReferences().get(0).getName().equals("r"));
+    }
+    
+    public void testExpandComposites() throws Exception {
+        Composite c1 = assemblyFactory.createComposite();
+        c1.setName(new QName("http://foo", "C1"));
+        Component a = assemblyFactory.createComponent();
+        a.setName("a");
+        c1.getComponents().add(a);
+        CompositeService s = assemblyFactory.createCompositeService();
+        s.setName("s");
+        c1.getServices().add(s);
+        CompositeReference r = assemblyFactory.createCompositeReference();
+        r.setName("r");
+        c1.getReferences().add(r);
+
+        Composite c2 = assemblyFactory.createComposite();
+        c2.setName(new QName("http://foo", "C2"));
+        Component b = assemblyFactory.createComponent();
+        b.setName("b");
+        c2.getComponents().add(b);
+        
+        Composite c = assemblyFactory.createComposite();
+        c.setName(new QName("http://foo", "C"));
+        Component x = assemblyFactory.createComponent();
+        x.setName("x");
+        x.setImplementation(c1);
+        c.getComponents().add(x);
+        Component y = assemblyFactory.createComponent();
+        y.setName("y");
+        y.setImplementation(c2);
+        c.getComponents().add(y);
+        Component z = assemblyFactory.createComponent();
+        z.setName("z");
+        z.setImplementation(c1);
+        c.getComponents().add(z);
+        
+        new CompositeCloneBuilderImpl(null).build(c);
+        
+        assertTrue(c.getComponents().get(0).getImplementation() != c1);
+        assertTrue(c.getComponents().get(1).getImplementation() != c2);
+        assertTrue(c.getComponents().get(2).getImplementation() != c1);
+
+        Composite i = (Composite)c.getComponents().get(0).getImplementation();
+        assertTrue(i.getComponents().get(0) != a);
+        assertTrue(i.getComponents().get(0).getName().equals("a"));
+        assertTrue(i.getServices().get(0).getName().equals("s"));
+        assertTrue(i.getServices().get(0) != s);
+        assertTrue(i.getReferences().get(0).getName().equals("r"));
+        assertTrue(i.getReferences().get(0) != r);
+    }
+
+}
diff --git a/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/builder/impl/PrintUtilTestCase.java b/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/builder/impl/PrintUtilTestCase.java
new file mode 100644
index 0000000000..82b1fd8665
--- /dev/null
+++ b/branches/sca-java-20080910/modules/assembly/src/test/java/org/apache/tuscany/sca/assembly/builder/impl/PrintUtilTestCase.java
@@ -0,0 +1,229 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.assembly.builder.impl;
+
+import java.io.PrintWriter;
+import java.io.StringWriter;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.assembly.AbstractProperty;
+import org.apache.tuscany.sca.assembly.AbstractReference;
+import org.apache.tuscany.sca.assembly.AbstractService;
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentProperty;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.ComponentType;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.CompositeReference;
+import org.apache.tuscany.sca.assembly.CompositeService;
+import org.apache.tuscany.sca.assembly.ConstrainingType;
+import org.apache.tuscany.sca.assembly.DefaultAssemblyFactory;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.Multiplicity;
+import org.apache.tuscany.sca.assembly.Property;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.assembly.TestBinding;
+import org.apache.tuscany.sca.assembly.TestImplementation;
+import org.apache.tuscany.sca.assembly.TestInterfaceContract;
+import org.apache.tuscany.sca.assembly.Wire;
+import org.junit.Test;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class PrintUtilTestCase {
+
+    private AssemblyFactory factory = new DefaultAssemblyFactory();
+    
+    /**
+     * Create a composite
+     */
+    Composite createComposite() {
+        Composite c = factory.createComposite();
+
+        Component c1 = createComponent("AccountServiceComponent1");
+        c.getComponents().add(c1);
+        Component c2 = createComponent("AccountServiceComponent2");
+        c.getComponents().add(c2);
+
+        Wire w = factory.createWire();
+        w.setSource(c1.getReferences().get(0));
+        w.setTarget(c2.getServices().get(0));
+        c.getWires().add(w);
+
+        CompositeService cs = factory.createCompositeService();
+        cs.setName("AccountService");
+        cs.setPromotedService(c1.getServices().get(0));
+        cs.setInterfaceContract(new TestInterfaceContract(factory));
+        c.getServices().add(cs);
+        cs.getBindings().add(new TestBinding(factory));
+
+        CompositeReference cr = factory.createCompositeReference();
+        cr.setName("StockQuoteService");
+        cr.getPromotedReferences().add(c2.getReferences().get(1));
+        cr.setInterfaceContract(new TestInterfaceContract(factory));
+        c.getReferences().add(cr);
+        cr.getBindings().add(new TestBinding(factory));
+
+        return c;
+    }
+
+    /**
+     * Create a new component
+     */
+    Component createComponent(String name) {
+        Component c = factory.createComponent();
+        c.setName(name);
+
+        ConstrainingType constraint = createConstrainingType();
+        c.setConstrainingType(constraint);
+
+        Implementation i = new TestImplementation(factory);
+        c.setImplementation(i);
+
+        ComponentProperty p = factory.createComponentProperty();
+        p.setName("currency");
+        p.setValue("USD");
+        p.setMustSupply(true);
+        p.setXSDType(new QName("", ""));
+        p.setProperty(i.getProperties().get(0));
+        c.getProperties().add(p);
+
+        ComponentReference ref1 = factory.createComponentReference();
+        ref1.setName("accountDataService");
+        ref1.setMultiplicity(Multiplicity.ONE_ONE);
+        ref1.setInterfaceContract(new TestInterfaceContract(factory));
+        ref1.setReference(i.getReferences().get(0));
+        c.getReferences().add(ref1);
+        ref1.getBindings().add(new TestBinding(factory));
+
+        ComponentReference ref2 = factory.createComponentReference();
+        ref2.setName("stockQuoteService");
+        ref2.setMultiplicity(Multiplicity.ONE_ONE);
+        ref2.setInterfaceContract(new TestInterfaceContract(factory));
+        ref2.setReference(i.getReferences().get(1));
+        c.getReferences().add(ref2);
+        ref2.getBindings().add(new TestBinding(factory));
+
+        ComponentService s = factory.createComponentService();
+        s.setName("AccountService");
+        s.setInterfaceContract(new TestInterfaceContract(factory));
+        s.setService(i.getServices().get(0));
+        c.getServices().add(s);
+        s.getBindings().add(new TestBinding(factory));
+
+        return c;
+    }
+
+    /**
+     * Create a new component type
+     * 
+     * @return
+     */
+    ComponentType createComponentType() {
+        ComponentType ctype = factory.createComponentType();
+
+        Property p = factory.createProperty();
+        p.setName("currency");
+        p.setValue("USD");
+        p.setMustSupply(true);
+        p.setXSDType(new QName("", ""));
+        ctype.getProperties().add(p);
+
+        Reference ref1 = factory.createReference();
+        ref1.setName("accountDataService");
+        ref1.setInterfaceContract(new TestInterfaceContract(factory));
+        ref1.setMultiplicity(Multiplicity.ONE_ONE);
+        ctype.getReferences().add(ref1);
+        ref1.getBindings().add(new TestBinding(factory));
+
+        Reference ref2 = factory.createReference();
+        ref2.setName("stockQuoteService");
+        ref2.setInterfaceContract(new TestInterfaceContract(factory));
+        ref2.setMultiplicity(Multiplicity.ONE_ONE);
+        ctype.getReferences().add(ref2);
+        ref2.getBindings().add(new TestBinding(factory));
+
+        Service s = factory.createService();
+        s.setName("AccountService");
+        s.setInterfaceContract(new TestInterfaceContract(factory));
+        ctype.getServices().add(s);
+        s.getBindings().add(new TestBinding(factory));
+
+        return ctype;
+    }
+
+    /**
+     * Create a new constraining type
+     * 
+     * @return
+     */
+    ConstrainingType createConstrainingType() {
+        ConstrainingType ctype = factory.createConstrainingType();
+
+        AbstractProperty p = factory.createAbstractProperty();
+        p.setName("currency");
+        p.setValue("USD");
+        p.setMustSupply(true);
+        p.setXSDType(new QName("", ""));
+        ctype.getProperties().add(p);
+
+        AbstractReference ref1 = factory.createAbstractReference();
+        ref1.setName("accountDataService");
+        ref1.setInterfaceContract(new TestInterfaceContract(factory));
+        ref1.setMultiplicity(Multiplicity.ONE_ONE);
+        ctype.getReferences().add(ref1);
+
+        AbstractReference ref2 = factory.createAbstractReference();
+        ref2.setName("stockQuoteService");
+        ref2.setInterfaceContract(new TestInterfaceContract(factory));
+        ref2.setMultiplicity(Multiplicity.ONE_ONE);
+        ctype.getReferences().add(ref2);
+
+        AbstractService s = factory.createAbstractService();
+        s.setName("AccountService");
+        s.setInterfaceContract(new TestInterfaceContract(factory));
+        ctype.getServices().add(s);
+
+        return ctype;
+    }
+
+    @Test
+    public void testPrint1() {
+        Composite composite = createComposite();
+        StringWriter sw = new StringWriter();
+        PrintUtil p = new PrintUtil(new PrintWriter(sw), true);
+        p.print(composite);
+        // System.out.println(sw.toString());
+    }
+
+    @Test
+    public void testPrint2() {
+        Composite composite = createComposite();
+        StringWriter sw = new StringWriter();
+        PrintUtil p = new PrintUtil(new PrintWriter(sw), false);
+        p.print(composite);
+        // System.out.println(sw.toString());
+    }    
+}