Moving 1.x branches

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@835126 13f79535-47bb-0310-9956-ffa450edef68

26 files changed, 2220 insertions, 0 deletions

diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/DISCLAIMER b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/DISCLAIMER
new file mode 100644
index 0000000000..d68a410903
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/DISCLAIMER
@@ -0,0 +1,8 @@
+Apache Tuscany is an effort undergoing incubation at The Apache Software

+Foundation (ASF), sponsored by the Apache Web Services PMC. Incubation is

+required of all newly accepted projects until a further review indicates that

+the infrastructure, communications, and decision making process have stabilized

+in a manner consistent with other successful ASF projects. While incubation

+status is not necessarily a reflection of the completeness or stability of the

+code, it does indicate that the project has yet to be fully endorsed by the ASF.

+

diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/LICENSE b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/LICENSE
new file mode 100644
index 0000000000..8aa906c321
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/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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+
+      "You" (or "Your") shall mean an individual or Legal Entity
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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."
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+      "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,
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+      Work and such Derivative Works in Source or Object form.
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+   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
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+      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
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+          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
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+          include a readable copy of the attribution notices contained
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+          of the following places: within a NOTICE text file distributed
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+          within a display generated by the Derivative Works, if and
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+          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
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+      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
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+      incidental, or consequential damages of any character arising as a
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+      Work (including but not limited to damages for loss of goodwill,
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+      other commercial damages or losses), even if such Contributor
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+   you may not use this file except in compliance with the License.
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+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
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+
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/NOTICE b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/NOTICE
new file mode 100644
index 0000000000..fdfa0e9faa
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/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/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/pom.xml b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/pom.xml
new file mode 100644
index 0000000000..c50241ae0f
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/pom.xml
@@ -0,0 +1,51 @@
+<?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>1.2.1-incubating-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+    <artifactId>tuscany-contribution-java</artifactId>
+    <name>Apache Tuscany SCA Java Import/Export Model</name>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-contribution</artifactId>
+            <version>1.2.1-incubating-SNAPSHOT</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-core-spi</artifactId>
+            <version>1.2.1-incubating-SNAPSHOT</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.codehaus.woodstox</groupId>
+            <artifactId>wstx-asl</artifactId>
+            <version>3.2.1</version>
+            <scope>runtime</scope>
+        </dependency>
+    </dependencies>
+</project>
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/DefaultJavaImportExportFactory.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/DefaultJavaImportExportFactory.java
new file mode 100644
index 0000000000..886c61c00a
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/DefaultJavaImportExportFactory.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.contribution.java;
+
+import org.apache.tuscany.sca.contribution.java.impl.JavaImportExportFactoryImpl;
+
+/**
+ * Default Java Import/Export Factory implementation
+ * 
+ * @version $Rev$ $Date$
+ */
+public class DefaultJavaImportExportFactory extends JavaImportExportFactoryImpl implements JavaImportExportFactory {
+}
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/JavaExport.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/JavaExport.java
new file mode 100644
index 0000000000..41e93ec148
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/JavaExport.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.contribution.java;
+
+import org.apache.tuscany.sca.contribution.Export;
+
+/**
+ * Base Java Export model interface
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface JavaExport extends Export {
+    /**
+     * Get java package that identifies the import
+     * 
+     * @return The package name
+     */
+    String getPackage();
+
+    /**
+     * Set java package that identifies the import
+     * 
+     * @param packageName The package name
+     */
+    void setPackage(String packageName);
+}
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/JavaImport.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/JavaImport.java
new file mode 100644
index 0000000000..d3568f6283
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/JavaImport.java
@@ -0,0 +1,58 @@
+/*
+ * 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.contribution.java;
+
+import org.apache.tuscany.sca.contribution.Import;
+
+/**
+ * Base Java Import model interface
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface JavaImport extends Import {
+
+    /**
+     * Get the location used to resolve the definitions for this import
+     * 
+     * @return The import location
+     */
+    String getLocation();
+
+    /**
+     * Set the location used to resolve the definitions for this import
+     * 
+     * @param location The import location
+     */
+    void setLocation(String location);
+
+    /**
+     * Get java package that identifies the import
+     * 
+     * @return The package name
+     */
+    String getPackage();
+
+    /**
+     * Set java package that identifies the import
+     * 
+     * @param packageName The package name
+     */
+    void setPackage(String packageName);
+}
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/JavaImportExportFactory.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/JavaImportExportFactory.java
new file mode 100644
index 0000000000..ee94d889ad
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/JavaImportExportFactory.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.contribution.java;
+
+/**
+ * Base Java Import/Export model factory
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface JavaImportExportFactory {
+
+    /**
+     * Create a java import model object
+     * 
+     * @return The new JavaImport model object
+     */
+    JavaImport createJavaImport();
+    
+    /**
+     * Create a java export model object
+     * 
+     * @return The new JavaExport model object
+     */
+    JavaExport createJavaExport();
+}
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/ClassReferenceModelResolver.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/ClassReferenceModelResolver.java
new file mode 100644
index 0000000000..4946002b14
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/ClassReferenceModelResolver.java
@@ -0,0 +1,134 @@
+/*
+ * 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.contribution.java.impl;
+
+import java.lang.ref.WeakReference;
+import java.lang.reflect.Constructor;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.resolver.ClassReference;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+
+/**
+ * A Model Resolver for ClassReferences.
+ *
+ * @version $Rev: 557916 $ $Date: 2007-07-20 01:04:40 -0700 (Fri, 20 Jul 2007) $
+ */
+public class ClassReferenceModelResolver implements ModelResolver {
+    private Contribution contribution;
+    private WeakReference<ClassLoader> classLoader;
+    private Map<String, ClassReference> map = new HashMap<String, ClassReference>();
+
+    private ModelResolver osgiResolver;
+
+    public ClassReferenceModelResolver(Contribution contribution, ModelFactoryExtensionPoint modelFactories) {
+        this.contribution = contribution;
+        if (this.contribution != null) {
+        	ClassLoader cl = contribution.getClassLoader();
+        	if (contribution.getClassLoader() == null) {
+                cl = new ContributionClassLoader(contribution, null);
+                contribution.setClassLoader(cl);
+        	}
+            this.classLoader = new WeakReference<ClassLoader>(cl);
+        } else {
+            // This path should be used only for unit testing.
+            this.classLoader = new WeakReference<ClassLoader>(this.getClass().getClassLoader());
+        }
+
+        try {
+            Class<?> osgiResolverClass =
+                Class.forName("org.apache.tuscany.sca.contribution.osgi.impl.OSGiClassReferenceModelResolver");
+            if (osgiResolverClass != null) {
+                Constructor constructor =
+                    osgiResolverClass.getConstructor(Contribution.class, ModelFactoryExtensionPoint.class);
+                this.osgiResolver = (ModelResolver)constructor.newInstance(contribution, modelFactories);
+            }
+        } catch (Throwable e) {
+            // Ignore error, non-OSGi classloading is used in this case
+        }
+    }
+
+    public void addModel(Object resolved) {
+        ClassReference clazz = (ClassReference)resolved;
+        map.put(clazz.getClassName(), clazz);
+    }
+
+    public Object removeModel(Object resolved) {
+        return map.remove(((ClassReference)resolved).getClassName());
+    }
+
+  
+
+    public <T> T resolveModel(Class<T> modelClass, T unresolved) {
+        if (!(unresolved instanceof ClassReference)) {
+            return unresolved;
+        }
+        Object resolved = map.get(((ClassReference)unresolved).getClassName());
+
+        if (resolved != null) {
+            return modelClass.cast(resolved);
+        }
+
+        //Load a class on demand
+        Class clazz = null;
+        
+        if (osgiResolver != null) {
+            resolved = osgiResolver.resolveModel(modelClass, unresolved);
+            clazz = ((ClassReference)resolved).getJavaClass();
+        }
+        
+        if (clazz == null) {
+            try {
+            	// Search contribution classloader (which has visibility of classes in the contribution
+            	// as well as explicitly imported packages from other contributions)
+                clazz = Class.forName(((ClassReference)unresolved).getClassName(), true, classLoader.get());
+            } catch (ClassNotFoundException e) {
+            } catch (NoClassDefFoundError e) {
+            }
+        }
+
+        if (clazz != null) {
+            //if we load the class            
+            // Store a new ClassReference wrappering the loaded class
+            ClassReference classReference = new ClassReference(clazz);
+            map.put(clazz.getName(), classReference);
+
+            // Return the resolved ClassReference
+            return modelClass.cast(classReference);
+        } else {
+            return unresolved;
+        }
+
+    }
+
+    
+    /***************
+     * Helper methods
+     ***************/
+
+    private String getPackageName(ClassReference clazz) {
+        int pos = clazz.getClassName().lastIndexOf(".");
+        return clazz.getClassName().substring(0, pos);
+    }
+    
+}
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/ContributionClassLoader.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/ContributionClassLoader.java
new file mode 100644
index 0000000000..873a21a456
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/ContributionClassLoader.java
@@ -0,0 +1,382 @@
+/*
+ * 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.contribution.java.impl;
+
+import java.io.IOException;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Enumeration;
+import java.util.HashSet;
+
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.contribution.Export;
+import org.apache.tuscany.sca.contribution.Import;
+import org.apache.tuscany.sca.contribution.java.JavaImport;
+
+
+public class ContributionClassLoader extends URLClassLoader {
+    
+    private Contribution contribution;
+
+    
+    /**
+     * Constructor for contribution classloader 
+     * 
+     * @param contribution
+     * @param parent
+     * @throws MalformedURLException
+     */
+    public ContributionClassLoader(Contribution contribution, ClassLoader parent) {
+        
+        // To enable contributions to access code outside of SCA contributions
+        // (typically by providing them on CLASSPATH), use the thread context
+        // classloader as the parent of all contribution classloaders.
+        
+        super(new URL[0], parent == null?Thread.currentThread().getContextClassLoader(): null);
+        this.contribution = contribution;
+        if (contribution.getLocation() != null) {
+            try {
+                this.addURL(new URL(contribution.getLocation()));
+            } catch (MalformedURLException e) {
+                throw new RuntimeException(e);
+            }
+        }
+    }
+
+    /*
+     * Return the classloader corresponding to a contribution providing an export
+     * Create a new classloader for the contribution if one does not exist
+     */
+    private ClassLoader getExportClassLoader(Contribution exportingContribution) {
+    	ClassLoader cl = exportingContribution.getClassLoader();
+        if (!(cl instanceof ContributionClassLoader)) {
+        	
+        	cl = new ContributionClassLoader(exportingContribution, cl);
+            exportingContribution.setClassLoader(cl);
+        }
+        return cl;
+    }
+    
+    /* (non-Javadoc)
+     * @see java.net.URLClassLoader#findClass(java.lang.String)
+     * 
+     * Search path for class:
+     *     This contribution
+     *     Imported contributions
+     */
+    @Override   
+    protected Class<?> findClass(String className) throws ClassNotFoundException {
+        
+        Class<?> clazz = null;
+        try {
+            clazz = findClassFromContribution(className);
+        } catch (ClassNotFoundException e) {
+                
+            for (Import import_ : this.contribution.getImports()) {
+                if (classNameMatchesImport(className, import_)) {
+                    // Delegate the resolution to the imported contribution
+                    for (Contribution exportingContribution : ((JavaImportModelResolver)import_.getModelResolver()).getExportContributions()) {
+                                    
+                        ClassLoader exportClassLoader = getExportClassLoader(exportingContribution);
+                        if (exportClassLoader instanceof ContributionClassLoader) {
+                            
+                            for (Export export : exportingContribution.getExports()) {
+                                try {
+                                    if (import_.match(export)) {
+                                        clazz = ((ContributionClassLoader)exportClassLoader).findClassFromContribution(className);
+                                        break;
+                                    }
+                                } catch (ClassNotFoundException e1) { 
+                                    continue;
+                                }
+                                    
+                            }
+                            if (clazz != null)  break;
+                        }
+                    }
+                    if (clazz != null) break;
+                }
+            }
+
+            if (clazz == null) throw e;
+        }
+        return clazz;
+    }
+
+    
+    /* (non-Javadoc)
+     * @see java.lang.ClassLoader#loadClass(java.lang.String, boolean)
+     * 
+     * Search path for class:
+     *     Parent classloader
+     *     This contribution
+     *     Imported contributions
+     *     
+     */
+    @Override
+    protected synchronized Class<?> loadClass(String className, boolean resolveClass) 
+        throws ClassNotFoundException {
+       
+        Class<?> clazz = null;
+        try {
+            
+            if (this.getParent() != null)
+                clazz = this.getParent().loadClass(className);
+            
+        } catch (ClassNotFoundException e) {
+        }
+
+        if (clazz == null)
+            clazz = findClass(className);
+
+
+        if (resolveClass)
+            this.resolveClass(clazz);
+        return clazz;
+        
+    }
+
+
+   
+    /*
+     * (non-Javadoc)
+     * 
+     * @see java.net.URLClassLoader#findResource(java.lang.String)
+     */
+    @Override
+    public URL findResource(String name) {
+        
+        URL url = findResourceFromContribution(name);
+        
+        if (url == null) {
+            for (Import import_ : this.contribution.getImports()) {
+                if (resourceNameMatchesImport(name, import_)) {
+                    // Delegate the resolution to the imported contribution
+                    for (Contribution exportingContribution : ((JavaImportModelResolver)import_.getModelResolver()).getExportContributions()) {
+                                
+                        ClassLoader exportClassLoader = getExportClassLoader(exportingContribution);
+                        if (exportClassLoader instanceof ContributionClassLoader) {
+
+                            for (Export export : exportingContribution.getExports()) {
+                                if (import_.match(export)) {
+                                    url = ((ContributionClassLoader)exportClassLoader).findResourceFromContribution(name);
+                                    if (url != null) break;
+                                }
+                            }
+                            if (url != null)  break;
+                        }
+                    }
+                    if (url != null) break;
+                }
+            }
+
+        }
+        return url;
+    }
+
+
+    /* (non-Javadoc)
+     * @see java.net.URLClassLoader#findResources(java.lang.String)
+     */
+    @Override
+    public Enumeration<URL> findResources(String name) throws IOException {
+              
+        return Collections.enumeration(findResourceSet(name));
+    }
+    
+    
+
+    
+    /* (non-Javadoc)
+     * @see java.lang.ClassLoader#getResource(java.lang.String)
+     * 
+     * Find a resource. 
+     * Search path for resource:
+     *     Parent classloader
+     *     This contribution
+     *     Imported contributions
+     */
+    @Override
+    public URL getResource(String resName) {
+ 
+        URL resource  = null;
+        
+        if (this.getParent() != null) {
+            resource  = this.getParent().getResource(resName);
+        }        
+        if (resource == null)
+            resource  = findResource(resName);
+        
+        return resource;
+    }
+
+
+    
+    /* (non-Javadoc)
+     * @see java.lang.ClassLoader#getResources(java.lang.String)
+     * 
+     * Return list of resources from this contribution, resources
+     * imported through imported contributions and resources from parent 
+     * classloader.
+     */
+    @Override
+    public Enumeration<URL> getResources(String resName) throws IOException {
+       
+        HashSet<URL> resourceSet = findResourceSet(resName);
+        addEnumerationToCollection(resourceSet, super.getResources(resName));
+        
+        return Collections.enumeration(resourceSet);
+    }
+    
+
+    /*
+     * Find set of resources
+     */
+    private HashSet<URL> findResourceSet(String name) throws IOException {
+        
+        HashSet<URL> resources = new HashSet<URL>();
+
+        addEnumerationToCollection(resources, super.findResources(name));
+        
+        for (Import import_ : this.contribution.getImports()) {
+            if (!(import_ instanceof JavaImport)) {
+                continue;
+            }
+            if (resourceNameMatchesImport(name, import_)) {
+                // Delegate the resolution to the imported contribution
+                for (Contribution exportingContribution : ((JavaImportModelResolver)import_.getModelResolver()).getExportContributions()) {
+                                
+                    ClassLoader exportClassLoader = getExportClassLoader(exportingContribution);
+                    if (exportClassLoader instanceof ContributionClassLoader) {
+
+                        for (Export export : exportingContribution.getExports()) {
+                            if (import_.match(export)) {
+                                addEnumerationToCollection(resources,
+                                        ((ContributionClassLoader)exportClassLoader).findResources(name));
+                            }
+                        }
+                    }
+                }
+            }
+         }
+
+        return resources;
+    }
+
+
+    /*
+     * Find class from contribution. If class has already been loaded, return loaded class.
+     */
+    private Class<?> findClassFromContribution(String className) throws ClassNotFoundException {
+        
+        Class<?> clazz = findLoadedClass(className);
+        if (clazz == null)
+            clazz =  super.findClass(className);
+        return clazz;
+       
+    }
+    
+    /*
+     * Find resource from contribution.
+     */
+    private URL findResourceFromContribution(String name) {
+        
+        return super.findResource(name);
+    }
+    
+    /**
+     * Check if a class name matches an import statement.
+     * Class matches if the package name used in <import.java/> matches
+     * 
+     * @param name    Name of class 
+     * @param import_ SCA contribution import
+     * @return true if this is a matching import
+     */
+    private boolean classNameMatchesImport(String name, Import import_) {
+        
+        if (import_ instanceof JavaImport && name != null && name.lastIndexOf('.') > 0) {
+            JavaImport javaImport = (JavaImport) import_;
+                
+            String packageName = name.substring(0, name.lastIndexOf('.'));
+            if (javaImport.getPackage().endsWith(".*")) {
+                String prefix = javaImport.getPackage().substring(0, javaImport.getPackage().length() -1);
+                 if (packageName.startsWith(prefix)) {
+                    return true;
+                }
+            } else {
+                return packageName.equals(javaImport.getPackage());
+            }
+        }
+        
+        return false;
+    }
+    
+    /**
+     * Check if a resource name matches an import statement.
+     * Resource matches if package/namespace match the directory of resource.
+     * 
+     * @param name    Name of resource
+     * @param import_ SCA contribution import
+     * @return true if this is a matching import
+     */
+    private boolean resourceNameMatchesImport(String name, Import import_) {
+        
+       
+        if (name == null || name.lastIndexOf('/') <= 0)
+            return false;
+        else if (import_ instanceof JavaImport) {
+            JavaImport javaImport = (JavaImport) import_;
+            
+            if (javaImport.getPackage().endsWith(".*")) {
+                String packageName = name.substring(0, name.lastIndexOf('/')).replace('/', '.');
+                String prefix = javaImport.getPackage().substring(0, javaImport.getPackage().length() -1);
+                if (packageName.startsWith(prefix)) {
+                    return true;
+                }
+            } else {
+                // 'name' is a resource : contains "/" as separators
+                // Get package name from resource name
+                String packageName = name.substring(0, name.lastIndexOf('/'));
+                 return packageName.equals(javaImport.getPackage().replaceAll("\\.", "/"));
+            }
+        } 
+        return false;
+    }
+    
+    /*
+     * Add an enumeration to a Collection
+     */
+    private <T extends Object> void addEnumerationToCollection(Collection<T> collection, Enumeration<T> enumeration) {
+        
+        while (enumeration.hasMoreElements())
+            collection.add(enumeration.nextElement());
+    }
+    
+    
+    @Override
+    public String toString() {
+        return "SCA contribution classloader for : " + contribution.getLocation();
+    }
+    
+    
+}
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaExportImpl.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaExportImpl.java
new file mode 100644
index 0000000000..f35f35ac4c
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaExportImpl.java
@@ -0,0 +1,58 @@
+/*
+ * 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.contribution.java.impl;
+
+import org.apache.tuscany.sca.contribution.java.JavaExport;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+
+/**
+ * Implementation of a Java Import model
+ * 
+ * @version $Rev$ $Date$
+ */
+public class JavaExportImpl implements JavaExport {
+    private ModelResolver modelResolver;
+
+    /**
+     * Java package being exported
+     */
+    private String packageName;
+
+    public JavaExportImpl() {
+        super();
+    }
+
+    public String getPackage() {
+        return this.packageName;
+    }
+
+    public void setPackage(String packageName) {
+        this.packageName = packageName;
+    }
+
+    public ModelResolver getModelResolver() {
+        return modelResolver;
+    }
+
+    public void setModelResolver(ModelResolver modelResolver) {
+        this.modelResolver = modelResolver;
+    }
+
+}
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaExportProcessor.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaExportProcessor.java
new file mode 100644
index 0000000000..840c4e2f02
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaExportProcessor.java
@@ -0,0 +1,120 @@
+/*
+ * 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.contribution.java.impl;
+
+import static javax.xml.stream.XMLStreamConstants.START_ELEMENT;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamConstants;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.java.JavaExport;
+import org.apache.tuscany.sca.contribution.java.JavaImportExportFactory;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.contribution.service.ContributionReadException;
+import org.apache.tuscany.sca.contribution.service.ContributionResolveException;
+import org.apache.tuscany.sca.contribution.service.ContributionWriteException;
+
+/**
+ * Artifact processor for Java Export
+ * 
+ * @version $Rev$ $Date$
+ */
+public class JavaExportProcessor implements StAXArtifactProcessor<JavaExport> {
+    private static final String SCA10_NS = "http://www.osoa.org/xmlns/sca/1.0";
+    
+    private static final QName EXPORT_JAVA = new QName(SCA10_NS, "export.java");
+    
+    private static final String PACKAGE = "package";
+    
+    private final JavaImportExportFactory factory;
+    
+    public JavaExportProcessor(ModelFactoryExtensionPoint modelFactories) {
+        super();
+        this.factory = modelFactories.getFactory(JavaImportExportFactory.class);
+    }
+
+    public QName getArtifactType() {
+        return EXPORT_JAVA;
+    }
+    
+    public Class<JavaExport> getModelType() {
+        return JavaExport.class;
+    }
+    
+    /**
+     * Process <export package=""/>
+     */
+    public JavaExport read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
+        JavaExport javaExport = this.factory.createJavaExport();
+        QName element = null;
+        
+        while (reader.hasNext()) {
+            int event = reader.getEventType();
+            switch (event) {
+                case START_ELEMENT:
+                    element = reader.getName();
+                    
+                    // Read <export.java>
+                    if (EXPORT_JAVA.equals(element)) {
+                        String packageName = reader.getAttributeValue(null, PACKAGE);
+                        if (packageName == null) {
+                            throw new ContributionReadException("Attribute 'package' is missing");
+                        }
+                        
+                        javaExport.setPackage(packageName);
+                    }
+                    break;
+                case XMLStreamConstants.END_ELEMENT:
+                    if (EXPORT_JAVA.equals(reader.getName())) {
+                        return javaExport;
+                    }
+                    break;        
+            }
+            
+            //Read the next element
+            if (reader.hasNext()) {
+                reader.next();
+            }
+        }
+        
+        return javaExport;
+    }
+
+    public void write(JavaExport javaExport, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException {
+        
+        // Write <export.java>
+        writer.writeStartElement(EXPORT_JAVA.getNamespaceURI(), EXPORT_JAVA.getLocalPart());
+        
+        if (javaExport.getPackage() != null) {
+            writer.writeAttribute(PACKAGE, javaExport.getPackage());
+        }
+        
+        writer.writeEndElement();
+    }
+
+    public void resolve(JavaExport model, ModelResolver resolver) throws ContributionResolveException {
+        
+    }
+}
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaImportExportFactoryImpl.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaImportExportFactoryImpl.java
new file mode 100644
index 0000000000..3bf9e54774
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaImportExportFactoryImpl.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.contribution.java.impl;
+
+import org.apache.tuscany.sca.contribution.java.JavaExport;
+import org.apache.tuscany.sca.contribution.java.JavaImport;
+import org.apache.tuscany.sca.contribution.java.JavaImportExportFactory;
+
+/**
+ * Java Import/Export Factory implementation
+ * 
+ * @version $Rev$ $Date$
+ */
+public class JavaImportExportFactoryImpl implements JavaImportExportFactory {
+
+    public JavaImport createJavaImport() {
+        return new JavaImportImpl();
+    }
+    
+    public JavaExport createJavaExport() {
+        return new JavaExportImpl();
+    }
+
+}
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaImportExportListener.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaImportExportListener.java
new file mode 100644
index 0000000000..95fba93181
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaImportExportListener.java
@@ -0,0 +1,157 @@
+/*
+ * 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.contribution.java.impl;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import org.apache.tuscany.sca.contribution.Artifact;
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.contribution.ContributionFactory;
+import org.apache.tuscany.sca.contribution.Export;
+import org.apache.tuscany.sca.contribution.Import;
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.java.JavaExport;
+import org.apache.tuscany.sca.contribution.java.JavaImport;
+import org.apache.tuscany.sca.contribution.resolver.DefaultImportAllModelResolver;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.contribution.service.ContributionListener;
+import org.apache.tuscany.sca.contribution.service.ContributionRepository;
+
+/**
+ * Java Import/Export contribution listener
+ * The listener would process all import/export from a given contribution 
+ * and initialize the model resolvers properly
+ * 
+ * @version $Rev$ $Date$
+ */
+public class JavaImportExportListener implements ContributionListener {
+    
+    private ContributionFactory contributionFactory;
+    
+    /**
+     * Constructs a new JavaImportExportListener
+     */
+    public JavaImportExportListener(ModelFactoryExtensionPoint modelFactories) {
+        contributionFactory = modelFactories.getFactory(ContributionFactory.class);
+    }
+    
+    /**
+     * Initialize the import/export model resolvers
+     * Export model resolvers are same as Contribution model resolver
+     * Import model resolvers are matched to a specific contribution if a location uri is specified, 
+     *    otherwise it try to resolve agains all the other contributions
+     * Also set the exporting contributions used by contribution classloaders to 
+     * match import/export for class loading.
+     */
+    public void contributionAdded(ContributionRepository repository, Contribution contribution) {
+        
+        // If the contribution does not contain sca-contribution.xml metadata
+        // (for example it's an existing JAR developed before SCA existed)
+        // export all its Java packages
+        ModelResolver modelResolver = contribution.getModelResolver();
+        
+        // Look for META-INF/sca-contribution.xml
+        Artifact artifact = contributionFactory.createArtifact();
+        artifact.setURI(Contribution.SCA_CONTRIBUTION_META);
+        artifact = modelResolver.resolveModel(Artifact.class, artifact);
+        if (artifact.getLocation() == null) {
+
+            // Look for META-INF/sca-contribution-generated.xml
+            artifact.setURI(Contribution.SCA_CONTRIBUTION_GENERATED_META);
+            artifact = modelResolver.resolveModel(Artifact.class, artifact);
+            if (artifact.getLocation() == null) {
+                
+                // No contribution metadata file was found, default to export all the
+                // Java packages found in the contribution
+                Set<String> packages = new HashSet<String>();
+                for (Artifact a: contribution.getArtifacts()) {
+                    String uri = a.getURI();
+                    if (uri.endsWith(".class")) {
+                        uri = uri.substring(0, uri.length() - 6);
+                        int d = uri.lastIndexOf('/');
+                        if (d != -1) {
+                            packages.add(uri.substring(0, d).replace('/', '.'));
+                        }
+                    }
+                }
+                
+                // Add Java export model objects for all the packages we found
+                for (String pkg: packages) {
+                    JavaExport export = new JavaExportImpl();
+                    export.setPackage(pkg);
+                    contribution.getExports().add(export);
+                }
+            }
+        }
+        
+        // Initialize the contribution exports
+        for (Export export: contribution.getExports()) {
+            export.setModelResolver(contribution.getModelResolver());
+        }
+        
+        // Initialize the contribution imports
+        for (Import import_: contribution.getImports()) {
+            boolean initialized = false;
+            
+            if(import_ instanceof JavaImport) {
+                JavaImport javaImport = (JavaImport) import_;
+                
+                //Find a matching contribution
+                if(javaImport.getLocation() != null) {
+                    Contribution targetContribution = repository.getContribution(javaImport.getLocation());
+                    if (targetContribution != null) {
+                    
+                        // Find a matching contribution export
+                        for (Export export: targetContribution.getExports()) {
+                            if (export instanceof JavaExport) {
+                                JavaExport javaExport = (JavaExport)export;
+                                if (javaImport.getPackage().equals(javaExport.getPackage())) {
+                                    List<Contribution> exportingContributions = new ArrayList<Contribution>();
+                                    exportingContributions.add(targetContribution);
+                                    javaImport.setModelResolver(new JavaImportModelResolver(exportingContributions, javaExport.getModelResolver()));
+                                    initialized = true;
+                                    break;
+                                }
+                            }
+                        }
+                    }                    
+                }
+
+                //if no location was specified, try to resolve with any contribution
+                if (!initialized) {
+                    //Use a resolver that will consider all contributions
+                    import_.setModelResolver(new JavaImportModelResolver(repository.getContributions(), new DefaultImportAllModelResolver(import_, repository.getContributions())));
+                }
+            }
+        }
+    }
+
+    public void contributionRemoved(ContributionRepository repository, Contribution contribution) {
+
+    }
+
+    public void contributionUpdated(ContributionRepository repository, Contribution oldContribution, Contribution contribution) {
+
+    }
+
+}
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaImportImpl.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaImportImpl.java
new file mode 100644
index 0000000000..cc18d5f798
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaImportImpl.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.contribution.java.impl;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.contribution.Export;
+import org.apache.tuscany.sca.contribution.java.JavaExport;
+import org.apache.tuscany.sca.contribution.java.JavaImport;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+
+/**
+ * Implementation of a Java Import model
+ * 
+ * @version $Rev$ $Date$
+ */
+public class JavaImportImpl implements JavaImport {
+    private ModelResolver modelResolver;
+    private List<Contribution> contributions;
+    /**
+     * Java package name being imported
+     */
+    private String packageName;
+    /**
+     * Contribution URI where the artifact is imported from
+     */
+    private String location;
+    
+    public JavaImportImpl() {
+        super();
+    }
+
+    public String getLocation() {
+        return this.location;
+    }
+
+    public void setLocation(String location) {
+        this.location = location;
+    }
+
+    public String getPackage() {
+        return this.packageName;
+    }
+
+    public void setPackage(String packageName) {
+        this.packageName = packageName;
+    }
+
+    public ModelResolver getModelResolver() {
+        return this.modelResolver;
+    }
+
+    public void setModelResolver(ModelResolver modelResolver) {
+        this.modelResolver = modelResolver;
+    }
+    public List<Contribution> getExportContributions() {
+        return contributions;
+    }
+
+    public void setExportContributions(List<Contribution> contributions) {
+        this.contributions = contributions;
+    }
+
+    /**
+     * Match a JavaImport to a given JavaExport based on :
+     *    location is not provided
+     *    import and export packages match
+     */
+    public boolean match(Export export) {
+        if(export instanceof JavaExport) {
+            JavaExport javaExport = (JavaExport)export;
+            String exportedPackage = javaExport.getPackage();
+            if (packageName.equals(exportedPackage)) {
+                return true;
+            } else {
+                if (packageName.endsWith(".*")) {
+                    String prefix = packageName.substring(0, packageName.length() - 1);
+                    if (exportedPackage.startsWith(prefix)) {
+                        return true;
+                    }
+                }
+            }
+        }
+        
+        return false;
+    }
+    
+    @Override
+    public String toString() {
+        return String.valueOf(packageName);
+    }
+}
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaImportModelResolver.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaImportModelResolver.java
new file mode 100644
index 0000000000..484eddd222
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaImportModelResolver.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.contribution.java.impl;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+
+/**
+ * A JavaImport specific model resolver. This model resolver is temporary
+ * and provides the ContributionClassLoader with the list of exporting
+ * contributions that it currently needs.
+ * 
+ * FIXME Remove this class after the ContributionClassLoader is simplified
+ * and cleaned up.
+ *
+ * @version $Rev$ $Date$
+ */
+public class JavaImportModelResolver implements ModelResolver {
+
+    private ModelResolver modelResolver;
+    private List<Contribution> contributions;
+    
+    public JavaImportModelResolver(List<Contribution> contributions, ModelResolver modelResolver) {
+        this.modelResolver = modelResolver;
+        this.contributions = contributions;
+    }
+
+    public List<Contribution> getExportContributions() {
+        return contributions;
+    }
+    
+    public void addModel(Object resolved) {
+        modelResolver.addModel(resolved);
+    }
+
+    public Object removeModel(Object resolved) {
+        return modelResolver.removeModel(resolved);
+    }
+
+    public <T> T resolveModel(Class<T> modelClass, T unresolved) {
+        return modelResolver.resolveModel(modelClass, unresolved);
+    }
+}
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaImportProcessor.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaImportProcessor.java
new file mode 100644
index 0000000000..24612b0450
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/java/org/apache/tuscany/sca/contribution/java/impl/JavaImportProcessor.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.contribution.java.impl;
+
+import static javax.xml.stream.XMLStreamConstants.START_ELEMENT;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamConstants;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.java.JavaImport;
+import org.apache.tuscany.sca.contribution.java.JavaImportExportFactory;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.contribution.service.ContributionReadException;
+import org.apache.tuscany.sca.contribution.service.ContributionResolveException;
+import org.apache.tuscany.sca.contribution.service.ContributionWriteException;
+
+/**
+ * Artifact Processor for Java Imports
+ * 
+ * @version $Rev$ $Date$
+ */
+public class JavaImportProcessor  implements StAXArtifactProcessor<JavaImport> {
+    private static final String SCA10_NS = "http://www.osoa.org/xmlns/sca/1.0";
+    
+    private static final QName IMPORT_JAVA = new QName(SCA10_NS, "import.java");
+
+    private static final String PACKAGE = "package";
+    private static final String LOCATION = "location";
+    
+    private final JavaImportExportFactory factory;
+    
+    public JavaImportProcessor(ModelFactoryExtensionPoint modelFactories) {
+        super();
+        this.factory = modelFactories.getFactory(JavaImportExportFactory.class);
+    }
+    
+    public QName getArtifactType() {
+        return IMPORT_JAVA;
+    }
+    
+    public Class<JavaImport> getModelType() {
+        return JavaImport.class;
+    }
+
+    /**
+     * Process <import.java package="" location=""/>
+     */
+    public JavaImport read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
+        JavaImport javaImport = this.factory.createJavaImport();
+        QName element = null;
+        
+        while (reader.hasNext()) {
+            int event = reader.getEventType();
+            switch (event) {
+                case START_ELEMENT:
+                    element = reader.getName();
+
+                    // Read <import.java>
+                    if (IMPORT_JAVA.equals(element)) {
+                        String packageName = reader.getAttributeValue(null, PACKAGE);
+                        if (packageName == null) {
+                            throw new ContributionReadException("Attribute 'package' is missing");
+                        }
+                        
+                        String location = reader.getAttributeValue(null, LOCATION);
+                        javaImport.setPackage(packageName);
+                        javaImport.setLocation(location);
+                    }
+                    break;
+                case XMLStreamConstants.END_ELEMENT:
+                    if (IMPORT_JAVA.equals(reader.getName())) {
+                        return javaImport;
+                    }
+                    break;        
+            }
+            
+            // Read the next element
+            if (reader.hasNext()) {
+                reader.next();
+            }
+        }
+        
+        return javaImport;
+    }
+
+    public void write(JavaImport javaImport, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException {
+        
+        // Write <import.java>
+        writer.writeStartElement(IMPORT_JAVA.getNamespaceURI(), IMPORT_JAVA.getLocalPart());
+        
+        if (javaImport.getPackage() != null) {
+            writer.writeAttribute(PACKAGE, javaImport.getPackage());
+        }
+        if (javaImport.getLocation() != null) {
+            writer.writeAttribute(LOCATION, javaImport.getLocation());
+        }
+        
+        writer.writeEndElement();
+    }
+
+
+    public void resolve(JavaImport model, ModelResolver resolver) throws ContributionResolveException {
+        
+    }
+}
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.java.JavaImportExportFactory b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.java.JavaImportExportFactory
new file mode 100644
index 0000000000..a293330a57
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.java.JavaImportExportFactory
@@ -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.contribution.java.impl.JavaImportExportFactoryImpl

diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor
new file mode 100644
index 0000000000..ac1fa9aade
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor
@@ -0,0 +1,19 @@
+# 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.contribution.java.impl.JavaImportProcessor;qname=http://www.osoa.org/xmlns/sca/1.0#import.java,model=org.apache.tuscany.sca.contribution.java.JavaImport
+org.apache.tuscany.sca.contribution.java.impl.JavaExportProcessor;qname=http://www.osoa.org/xmlns/sca/1.0#export.java,model=org.apache.tuscany.sca.contribution.java.JavaExport
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.resolver.ModelResolver b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.resolver.ModelResolver
new file mode 100644
index 0000000000..c69eb40636
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.resolver.ModelResolver
@@ -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.contribution.java.impl.ClassReferenceModelResolver;model=org.apache.tuscany.sca.contribution.resolver.ClassReference

diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.service.ContributionListener b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.service.ContributionListener
new file mode 100644
index 0000000000..7debb3d3c6
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.service.ContributionListener
@@ -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.contribution.java.impl.JavaImportExportListener

diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/test/java/org/apache/tuscany/sca/contribution/java/impl/ClassReferenceArtifactResolverTestCase.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/test/java/org/apache/tuscany/sca/contribution/java/impl/ClassReferenceArtifactResolverTestCase.java
new file mode 100644
index 0000000000..c911899b08
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/test/java/org/apache/tuscany/sca/contribution/java/impl/ClassReferenceArtifactResolverTestCase.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.contribution.java.impl;
+
+import junit.framework.TestCase;
+
+import org.apache.tuscany.sca.contribution.DefaultModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.resolver.ClassReference;
+import org.apache.tuscany.sca.contribution.resolver.DefaultModelResolverExtensionPoint;
+import org.apache.tuscany.sca.contribution.resolver.ExtensibleModelResolver;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolverExtensionPoint;
+
+/**
+ * Test ClassReferenceArtifactResolver.
+ *
+ * @version $Rev: 560435 $ $Date: 2007-07-27 18:26:55 -0700 (Fri, 27 Jul 2007) $
+ */
+public class ClassReferenceArtifactResolverTestCase extends TestCase {
+    private ExtensibleModelResolver resolver;
+    
+    @Override
+    protected void setUp() throws Exception {
+        
+        ModelResolverExtensionPoint resolvers = new DefaultModelResolverExtensionPoint();
+        resolvers.addResolver(ClassReference.class, ClassReferenceModelResolver.class);
+        
+        ModelFactoryExtensionPoint factories = new DefaultModelFactoryExtensionPoint();
+        
+        resolver = new ExtensibleModelResolver(null, resolvers, factories, null);
+    }
+    
+    @Override
+    protected void tearDown() throws Exception {
+    }
+    
+    /**
+     * Test ClassReference resolution
+     * 
+     */
+    public void testResolveClass() {
+        ClassReference ref = new ClassReference(getClass().getName());
+        ClassReference clazz = resolver.resolveModel(ClassReference.class, ref);
+        assertFalse(clazz.isUnresolved());
+        assertTrue(clazz.getJavaClass() == getClass());
+    }
+    
+    /**
+     * Test ClassReference resolution of inexistent class
+     *
+     */
+    public void testUnresolvedClass() {
+        ClassReference ref = new ClassReference("NonExistentClass");
+        ClassReference clazz = resolver.resolveModel(ClassReference.class, ref);
+        assertTrue(clazz.isUnresolved());
+        assertTrue(clazz.getJavaClass() == null);
+    }
+}
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/test/java/org/apache/tuscany/sca/contribution/java/impl/ContributionClassLoaderTestCase.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/test/java/org/apache/tuscany/sca/contribution/java/impl/ContributionClassLoaderTestCase.java
new file mode 100644
index 0000000000..c1ef86b68c
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/test/java/org/apache/tuscany/sca/contribution/java/impl/ContributionClassLoaderTestCase.java
@@ -0,0 +1,253 @@
+/*
+ * 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.contribution.java.impl;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.ArrayList;
+
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.contribution.ContributionFactory;
+import org.apache.tuscany.sca.contribution.DefaultContributionFactory;
+import org.apache.tuscany.sca.contribution.java.JavaExport;
+import org.apache.tuscany.sca.contribution.java.JavaImport;
+import org.apache.tuscany.sca.contribution.java.JavaImportExportFactory;
+import org.apache.tuscany.sca.contribution.java.impl.JavaImportExportFactoryImpl;
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+
+/**
+ * Test ContributionClassLoader.
+ *
+ */
+public class ContributionClassLoaderTestCase  {
+    
+    private ContributionFactory contributionFactory;
+    private JavaImportExportFactory javaImportExportFactory;
+    
+    @Before
+    public void setUp() throws Exception {
+        contributionFactory = new DefaultContributionFactory();
+        javaImportExportFactory = new JavaImportExportFactoryImpl();
+    }
+    
+    @After
+    public void tearDown() throws Exception {
+    }
+    
+    private Contribution createContribution(String fileName) throws MalformedURLException {
+
+        Contribution contrib = contributionFactory.createContribution();
+        File contribDir = new File(fileName);        
+        contrib.setLocation(contribDir.toURI().toURL().toString());
+        contrib.setClassLoader(new ContributionClassLoader(contrib, null));
+        return contrib;
+    }
+    
+   
+    @Test
+    public void testClassLoadingFromContribution() throws ClassNotFoundException, MalformedURLException {
+        
+        Contribution contribA = createContribution("target/test-classes");
+        Contribution contribB = createContribution("target");
+        Contribution contribC = createContribution("target/test-classes/deployables/sample-calculator.jar");
+        
+        // Class present in contribution, also in parent. Class is loaded from parent
+        Class<?> testClassA = contribA.getClassLoader().loadClass(this.getClass().getName());        
+        Assert.assertNotNull(testClassA);
+        Assert.assertSame(this.getClass(), testClassA);
+        
+        // Class not present in contribution, but present in parent classloader
+        Class<?> testClassB = contribB.getClassLoader().loadClass(this.getClass().getName());
+        Assert.assertNotNull(testClassB);
+        Assert.assertSame(this.getClass(), testClassB);
+        
+        // Class present in contribution, but not in parent
+        Class<?> testClassC = contribC.getClassLoader().loadClass("calculator.AddService");        
+        Assert.assertNotNull(testClassC);
+        
+        // Class not present in contribution or in parent
+        try {
+            contribA.getClassLoader().loadClass("NonExistent");
+            
+            Assert.assertTrue("ClassNotFoundException not thrown as expected", false);
+            
+        } catch (ClassNotFoundException e) {
+        }
+        
+        
+        
+    }
+    
+    @Test
+    public void testResourceLoadingFromContribution() throws ClassNotFoundException, MalformedURLException {
+        
+        Contribution contribA = createContribution("target/test-classes");
+        Contribution contribB = createContribution("target");
+        Contribution contribC = createContribution("target/test-classes/deployables/sample-calculator.jar");
+        
+        // Resource present in contribution, and in parent
+        URL resA = contribA.getClassLoader().getResource("deployables/sample-calculator.jar");
+        Assert.assertNotNull(resA);
+        
+        // Resource not present in contribution, but present in parent classloader
+        URL resB = contribB.getClassLoader().getResource("deployables/sample-calculator.jar");
+        Assert.assertNotNull(resB);
+        
+        // Resource present in contribution, but not in parent
+        URL resC = contribC.getClassLoader().getResource("calculator/AddService.class");
+        Assert.assertNotNull(resC);        
+        
+        // Load Java class as resource from parent
+        String classResName = this.getClass().getName().replaceAll("\\.", "/") + ".class";
+        URL classResA = contribA.getClassLoader().getResource(classResName);
+        Assert.assertNotNull(classResA);
+               
+        // Non-existent resource
+        URL res = contribA.getClassLoader().getResource("deployables/NonExistent");
+        Assert.assertNull(res);
+        
+    }
+    
+
+    @Test
+    public void testClassLoadingFromImportedContribution() throws ClassNotFoundException, MalformedURLException {
+        
+        Contribution contribA = createContribution("target/test-classes");
+        Contribution contribB = createContribution("target");
+        Contribution contribC = createContribution("target/test-classes/deployables/sample-calculator.jar");
+        ArrayList<Contribution> exportContribList = new ArrayList<Contribution>();
+        exportContribList.add(contribA);
+        exportContribList.add(contribC);
+        
+        JavaImport import_ = javaImportExportFactory.createJavaImport();
+        import_.setPackage(this.getClass().getPackage().getName());
+        import_.setModelResolver(new JavaImportModelResolver(exportContribList, null));
+        contribB.getImports().add(import_);
+        import_ = javaImportExportFactory.createJavaImport();
+        import_.setPackage("calculator");
+        import_.setModelResolver(new JavaImportModelResolver(exportContribList, null));
+        contribB.getImports().add(import_);
+        
+        JavaExport export = javaImportExportFactory.createJavaExport();
+        export.setPackage(this.getClass().getPackage().getName());
+        contribA.getExports().add(export);
+        export = javaImportExportFactory.createJavaExport();
+        export.setPackage("calculator");
+        contribC.getExports().add(export);        
+        
+        // Load class from parent, class is also present in imported contribution. Class should
+        // be loaded from parent
+        Class<?> testClassB = contribB.getClassLoader().loadClass(this.getClass().getName());        
+        Assert.assertNotNull(testClassB);
+        Assert.assertSame(this.getClass(), testClassB);
+        
+        // Load class from parent, class is also present in parent. Class should be loaded
+        // from parent.
+        Class<?> testClassA = contribA.getClassLoader().loadClass(this.getClass().getName());        
+        Assert.assertNotNull(testClassA);
+        Assert.assertSame(this.getClass(), testClassA);
+        
+        // Imported class should be the same as the one loaded by the exporting contribution
+        Assert.assertSame(testClassA, testClassB);
+        
+        // Load class from imported contribution, class is not present in parent
+        Class<?> testClassB1 = contribB.getClassLoader().loadClass("calculator.AddService");
+        Assert.assertNotNull(testClassB1);
+        
+        // Imported class should be the same as the one loaded by the exporting contribution
+        Class<?> testClassC = contribC.getClassLoader().loadClass("calculator.AddService");
+        Assert.assertNotNull(testClassC);        
+        Assert.assertSame(testClassC, testClassB1);
+        
+
+        // Try to load class from package which is not explicitly imported - should throw ClassNotFoundException
+        try {
+            contribA.getClassLoader().loadClass("calculator.AddService");
+            
+            Assert.assertTrue("ClassNotFoundException not thrown as expected", false);
+            
+        } catch (ClassNotFoundException e) {
+        }
+        
+        // Try to load non-existent class from imported package - should throw ClassNotFoundException
+        try {
+            contribB.getClassLoader().loadClass(this.getClass().getPackage().getName() + ".NonExistentClass");
+            
+            Assert.assertTrue("ClassNotFoundException not thrown as expected", false);
+            
+        } catch (ClassNotFoundException e) {
+        }
+        
+    }
+
+    @Test
+    public void testResourceLoadingFromImportedContribution() throws ClassNotFoundException, MalformedURLException {
+        
+        Contribution contribA = createContribution("target/test-classes");
+        Contribution contribB = createContribution("target");
+        Contribution contribC = createContribution("target/test-classes/deployables/sample-calculator.jar");
+        
+        ArrayList<Contribution> exportContribList = new ArrayList<Contribution>();
+        exportContribList.add(contribA);
+        exportContribList.add(contribC);
+        
+        JavaImport import_ = javaImportExportFactory.createJavaImport();
+        import_.setPackage(this.getClass().getPackage().getName());
+        import_.setModelResolver(new JavaImportModelResolver(exportContribList, null));
+        contribB.getImports().add(import_);
+        JavaImport import1_ = javaImportExportFactory.createJavaImport();
+        import1_.setPackage("calculator");
+        import1_.setModelResolver(new JavaImportModelResolver(exportContribList, null));
+        contribB.getImports().add(import1_);
+        
+        JavaExport export = javaImportExportFactory.createJavaExport();
+        export.setPackage(this.getClass().getPackage().getName());
+        contribA.getExports().add(export);
+        JavaExport export1 = javaImportExportFactory.createJavaExport();
+        export1.setPackage("calculator");
+        contribC.getExports().add(export1);
+
+        
+        // Load resource from parent
+        URL resB = contribB.getClassLoader().getResource("deployables/sample-calculator.jar"); 
+        Assert.assertNotNull(resB);
+        
+        // Load Java class as resource from imported contribution with JavaImport
+        String classResName = this.getClass().getName().replaceAll("\\.", "/") + ".class";               
+        URL classResB = contribB.getClassLoader().getResource(classResName);
+        Assert.assertNotNull(classResB);
+        
+        // Load Java class as resource from imported contribution with JavaImport
+        URL classResB1 = contribB.getClassLoader().getResource("calculator/AddService.class");
+        Assert.assertNotNull(classResB1);
+        
+        // Try to load resource not explicitly imported by contribution
+        URL classResA1 = contribA.getClassLoader().getResource("calculator/AddService.class");
+        Assert.assertNull(classResA1);
+        
+        
+    }
+
+}
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/test/java/org/apache/tuscany/sca/contribution/java/impl/JavaExportProcessorTestCase.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/test/java/org/apache/tuscany/sca/contribution/java/impl/JavaExportProcessorTestCase.java
new file mode 100644
index 0000000000..81c7ee525a
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/test/java/org/apache/tuscany/sca/contribution/java/impl/JavaExportProcessorTestCase.java
@@ -0,0 +1,92 @@
+/*
+ * 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.contribution.java.impl;
+
+import java.io.StringReader;
+
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLStreamReader;
+
+import junit.framework.TestCase;
+
+import org.apache.tuscany.sca.contribution.DefaultModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.java.JavaExport;
+import org.apache.tuscany.sca.contribution.service.ContributionReadException;
+
+/**
+ * Test JavaExportProcessorTestCase
+ * 
+ * @version $Rev$ $Date$
+ */
+public class JavaExportProcessorTestCase extends TestCase {
+
+    private static final String VALID_XML =
+        "<?xml version=\"1.0\" encoding=\"ASCII\"?>" 
+            + "<contribution xmlns=\"http://www.osoa.org/xmlns/sca/1.0\" xmlns:ns=\"http://ns\">"
+            + "<export.java package=\"org.apache.tuscany.sca.contribution.java\"/>"
+            + "</contribution>";
+
+    private static final String INVALID_XML =
+        "<?xml version=\"1.0\" encoding=\"ASCII\"?>" 
+            + "<contribution xmlns=\"http://www.osoa.org/xmlns/sca/1.0\" xmlns:ns=\"http://ns\">"
+            + "<export.java/>"
+            + "</contribution>";
+
+    private XMLInputFactory xmlFactory;
+
+    @Override
+    protected void setUp() throws Exception {
+        xmlFactory = XMLInputFactory.newInstance();
+    }
+
+    /**
+     * Test loading a valid export element from a contribution metadata stream
+     * @throws Exception
+     */
+    public void testLoad() throws Exception {
+        XMLStreamReader reader = xmlFactory.createXMLStreamReader(new StringReader(VALID_XML));
+
+        ModelFactoryExtensionPoint factories = new DefaultModelFactoryExtensionPoint();
+        factories.addFactory(new JavaImportExportFactoryImpl());
+        JavaExportProcessor exportProcessor = new JavaExportProcessor(factories);
+        JavaExport javaExport = exportProcessor.read(reader);
+        
+        assertEquals("org.apache.tuscany.sca.contribution.java", javaExport.getPackage());
+    }
+
+    /**
+     * Test loading an INVALID export element from a contribution metadata stream
+     * @throws Exception
+     */
+    public void testLoadInvalid() throws Exception {
+        XMLStreamReader reader = xmlFactory.createXMLStreamReader(new StringReader(INVALID_XML));
+
+        ModelFactoryExtensionPoint factories = new DefaultModelFactoryExtensionPoint();
+        factories.addFactory(new JavaImportExportFactoryImpl());
+        JavaExportProcessor exportProcessor = new JavaExportProcessor(factories);
+        try {
+            exportProcessor.read(reader);
+            fail("readerException should have been thrown");
+        } catch (ContributionReadException e) {
+            assertTrue(true);
+        }
+    }    
+}
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/test/java/org/apache/tuscany/sca/contribution/java/impl/JavaImportProcessorTestCase.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/test/java/org/apache/tuscany/sca/contribution/java/impl/JavaImportProcessorTestCase.java
new file mode 100644
index 0000000000..7f342c2278
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/test/java/org/apache/tuscany/sca/contribution/java/impl/JavaImportProcessorTestCase.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.contribution.java.impl;
+
+import java.io.StringReader;
+
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLStreamReader;
+
+import junit.framework.TestCase;
+
+import org.apache.tuscany.sca.contribution.DefaultModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.java.JavaImport;
+import org.apache.tuscany.sca.contribution.service.ContributionReadException;
+
+/**
+ * Test JavaImportProcessorTestCase
+ * 
+ * @version $Rev$ $Date$
+ */
+public class JavaImportProcessorTestCase extends TestCase {
+
+    private static final String VALID_XML =
+        "<?xml version=\"1.0\" encoding=\"ASCII\"?>" 
+            + "<contribution xmlns=\"http://www.osoa.org/xmlns/sca/1.0\" xmlns:ns=\"http://ns\">"
+            + "<import.java package=\"org.apache.tuscany.sca.contribution.java\" location=\"sca://contributions/001\"/>"
+            + "</contribution>";
+
+    private static final String INVALID_XML =
+        "<?xml version=\"1.0\" encoding=\"ASCII\"?>" 
+            + "<contribution xmlns=\"http://www.osoa.org/xmlns/sca/1.0\" xmlns:ns=\"http://ns\">"
+            + "<import.java location=\"sca://contributions/001\"/>"
+            + "</contribution>";
+
+    private XMLInputFactory xmlFactory;
+
+    @Override
+    protected void setUp() throws Exception {
+        xmlFactory = XMLInputFactory.newInstance();
+    }
+
+    /**
+     * Test loading a valid import element from a contribution metadata stream
+     * @throws Exception
+     */
+    public void testLoad() throws Exception {
+        XMLStreamReader reader = xmlFactory.createXMLStreamReader(new StringReader(VALID_XML));
+
+        ModelFactoryExtensionPoint factories = new DefaultModelFactoryExtensionPoint();
+        factories.addFactory(new JavaImportExportFactoryImpl());
+        JavaImportProcessor importProcessor = new JavaImportProcessor(factories);
+        JavaImport javaImport = importProcessor.read(reader);
+        
+        assertEquals("org.apache.tuscany.sca.contribution.java", javaImport.getPackage());
+        assertEquals("sca://contributions/001", javaImport.getLocation());
+    }
+
+    /**
+     * Test loading a INVALID import element from a contribution metadata stream
+     * @throws Exception
+     */
+    public void testLoadInvalid() throws Exception {
+        XMLStreamReader reader = xmlFactory.createXMLStreamReader(new StringReader(INVALID_XML));
+
+        ModelFactoryExtensionPoint factories = new DefaultModelFactoryExtensionPoint();
+        factories.addFactory(new JavaImportExportFactoryImpl());
+        JavaImportProcessor importProcessor = new JavaImportProcessor(factories);
+        try {
+            importProcessor.read(reader);
+            fail("readerException should have been thrown");
+        } catch (ContributionReadException e) {
+            assertTrue(true);
+        }
+    }    
+}
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/test/resources/deployables/sample-calculator.jar b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/test/resources/deployables/sample-calculator.jar
new file mode 100644
index 0000000000..0ca3a1b781
--- /dev/null
+++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution-java/src/test/resources/deployables/sample-calculator.jar