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-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/LICENSE205
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/META-INF/MANIFEST.MF32
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/NOTICE6
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/pom.xml39
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/BindingType.java27
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/DefaultPolicyFactory.java30
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/ExtensionType.java81
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/ImplementationType.java27
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/Intent.java160
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/IntentMap.java51
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/PolicyAttachment.java31
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/PolicyExpression.java65
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/PolicyFactory.java66
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/PolicySet.java146
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/PolicySubject.java56
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/Qualifier.java44
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/BindingTypeImpl.java38
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/ExtensionTypeImpl.java97
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/ImplementationTypeImpl.java39
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/IntentImpl.java168
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/IntentMapImpl.java61
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/PolicyExpressionImpl.java86
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/PolicyFactoryImpl.java70
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/PolicySetImpl.java145
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/QualifierImpl.java48
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/util/PolicyComputationUtils.java370
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/util/PolicyValidationException.java38
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/util/PolicyValidationUtils.java98
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/main/resources/META-INF/services/org.apache.tuscany.sca.policy.PolicyFactory18
-rw-r--r--sandbox/ant/sca/branches/tb3/modules/policy/src/test/java/org/apache/tuscany/sca/policy/PolicyFactoryTestCase.java55
30 files changed, 2397 insertions, 0 deletions
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/LICENSE b/sandbox/ant/sca/branches/tb3/modules/policy/LICENSE
new file mode 100644
index 0000000000..8aa906c321
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/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.
+
+ "Licensor" shall mean the copyright owner or entity authorized by
+ the copyright owner that is granting the License.
+
+ "Legal Entity" shall mean the union of the acting entity and all
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+ direction or management of such entity, whether by contract or
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+
+ "You" (or "Your") shall mean an individual or Legal Entity
+ exercising permissions granted by this License.
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+ "Source" form shall mean the preferred form for making modifications,
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+ source, and configuration files.
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+ "Object" form shall mean any form resulting from mechanical
+ transformation or translation of a Source form, including but
+ not limited to compiled object code, generated documentation,
+ and conversions to other media types.
+
+ "Work" shall mean the work of authorship, whether in Source or
+ Object form, made available under the License, as indicated by a
+ copyright notice that is included in or attached to the work
+ (an example is provided in the Appendix below).
+
+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
+ separable from, or merely link (or bind by name) to the interfaces of,
+ the Work and Derivative Works thereof.
+
+ "Contribution" shall mean any work of authorship, including
+ the original version of the Work and any modifications or additions
+ to that Work or Derivative Works thereof, that is intentionally
+ submitted to Licensor for inclusion in the Work by the copyright owner
+ or by an individual or Legal Entity authorized to submit on behalf of
+ the copyright owner. For the purposes of this definition, "submitted"
+ means any form of electronic, verbal, or written communication sent
+ to the Licensor or its representatives, including but not limited to
+ communication on electronic mailing lists, source code control systems,
+ and issue tracking systems that are managed by, or on behalf of, the
+ Licensor for the purpose of discussing and improving the Work, but
+ excluding communication that is conspicuously marked or otherwise
+ designated in writing by the copyright owner as "Not a Contribution."
+
+ "Contributor" shall mean Licensor and any individual or Legal Entity
+ on behalf of whom a Contribution has been received by Licensor and
+ subsequently incorporated within the Work.
+
+ 2. Grant of Copyright License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ copyright license to reproduce, prepare Derivative Works of,
+ publicly display, publicly perform, sublicense, and distribute the
+ Work and such Derivative Works in Source or Object form.
+
+ 3. Grant of Patent License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ (except as stated in this section) patent license to make, have made,
+ use, offer to sell, sell, import, and otherwise transfer the Work,
+ where such license applies only to those patent claims licensable
+ by such Contributor that are necessarily infringed by their
+ Contribution(s) alone or by combination of their Contribution(s)
+ with the Work to which such Contribution(s) was submitted. If You
+ institute patent litigation against any entity (including a
+ cross-claim or counterclaim in a lawsuit) alleging that the Work
+ or a Contribution incorporated within the Work constitutes direct
+ or contributory patent infringement, then any patent licenses
+ granted to You under this License for that Work shall terminate
+ as of the date such litigation is filed.
+
+ 4. Redistribution. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
+ modifications, and in Source or Object form, provided that You
+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
+
+ (b) You must cause any modified files to carry prominent notices
+ stating that You changed the files; and
+
+ (c) You must retain, in the Source form of any Derivative Works
+ that You distribute, all copyright, patent, trademark, and
+ attribution notices from the Source form of the Work,
+ excluding those notices that do not pertain to any part of
+ the Derivative Works; and
+
+ (d) If the Work includes a "NOTICE" text file as part of its
+ distribution, then any Derivative Works that You distribute must
+ include a readable copy of the attribution notices contained
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+ pertain to any part of the Derivative Works, in at least one
+ of the following places: within a NOTICE text file distributed
+ as part of the Derivative Works; within the Source form or
+ documentation, if provided along with the Derivative Works; or,
+ within a display generated by the Derivative Works, if and
+ wherever such third-party notices normally appear. The contents
+ of the NOTICE file are for informational purposes only and
+ do not modify the License. You may add Your own attribution
+ notices within Derivative Works that You distribute, alongside
+ or as an addendum to the NOTICE text from the Work, provided
+ that such additional attribution notices cannot be construed
+ as modifying the License.
+
+ You may add Your own copyright statement to Your modifications and
+ may provide additional or different license terms and conditions
+ for use, reproduction, or distribution of Your modifications, or
+ for any such Derivative Works as a whole, provided Your use,
+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
+ origin of the Work and reproducing the content of the NOTICE file.
+
+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied, including, without limitation, any warranties or conditions
+ of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+ PARTICULAR PURPOSE. You are solely responsible for determining the
+ appropriateness of using or redistributing the Work and assume any
+ risks associated with Your exercise of permissions under this License.
+
+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
+ result of this License or out of the use or inability to use the
+ Work (including but not limited to damages for loss of goodwill,
+ work stoppage, computer failure or malfunction, or any and all
+ other commercial damages or losses), even if such Contributor
+ has been advised of the possibility of such damages.
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+ 9. Accepting Warranty or Additional Liability. While redistributing
+ the Work or Derivative Works thereof, You may choose to offer,
+ and charge a fee for, acceptance of support, warranty, indemnity,
+ or other liability obligations and/or rights consistent with this
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+ on Your own behalf and on Your sole responsibility, not on behalf
+ of any other Contributor, and only if You agree to indemnify,
+ defend, and hold each Contributor harmless for any liability
+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
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+ END OF TERMS AND CONDITIONS
+
+ APPENDIX: How to apply the Apache License to your work.
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+ To apply the Apache License to your work, attach the following
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+ Copyright [yyyy] [name of copyright owner]
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+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+
+
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/META-INF/MANIFEST.MF b/sandbox/ant/sca/branches/tb3/modules/policy/META-INF/MANIFEST.MF
new file mode 100644
index 0000000000..ce038e7d05
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/META-INF/MANIFEST.MF
@@ -0,0 +1,32 @@
+Manifest-Version: 1.0
+Export-Package: org.apache.tuscany.sca.policy.util;uses:="javax.xml.pa
+ rsers,javax.xml.transform.dom,org.apache.tuscany.sca.policy,org.apach
+ e.tuscany.sca.extensibility,org.w3c.dom,javax.xml.namespace,javax.xml
+ .xpath,javax.xml.transform,javax.xml.transform.stream";version="2.0.0",
+ org.apache.tuscany.sca.policy.impl;uses:="javax.xml.xpath,org.apache.
+ tuscany.sca.policy,javax.xml.namespace";version="2.0.0",org.apache.tusc
+ any.sca.policy;uses:="javax.xml.xpath,org.apache.tuscany.sca.policy.i
+ mpl,javax.xml.namespace";version="2.0.0"
+Tool: Bnd-0.0.255
+Bundle-Name: Apache Tuscany SCA Policy Model
+Created-By: 1.6.0_07 (Sun Microsystems Inc.)
+Bundle-Vendor: The Apache Software Foundation
+Bundle-Version: 2.0.0
+Bnd-LastModified: 1225397083703
+Bundle-ManifestVersion: 2
+Bundle-License: http://www.apache.org/licenses/LICENSE-2.0.txt
+Bundle-Description: Apache Tuscany SCA Policy Model
+Import-Package: javax.xml.namespace,
+ javax.xml.parsers,
+ javax.xml.transform,
+ javax.xml.transform.dom,
+ javax.xml.transform.stream,
+ javax.xml.xpath,
+ org.apache.tuscany.sca.extensibility;version="2.0.0",
+ org.apache.tuscany.sca.policy;version="2.0.0",
+ org.apache.tuscany.sca.policy.impl;version="2.0.0",
+ org.apache.tuscany.sca.policy.util;version="2.0.0",
+ org.w3c.dom
+Bundle-SymbolicName: org.apache.tuscany.sca.policy
+Bundle-DocURL: http://www.apache.org/
+
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/NOTICE b/sandbox/ant/sca/branches/tb3/modules/policy/NOTICE
new file mode 100644
index 0000000000..25bb89c9b2
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/NOTICE
@@ -0,0 +1,6 @@
+${pom.name}
+Copyright (c) 2005 - 2009 The Apache Software Foundation
+
+This product includes software developed by
+The Apache Software Foundation (http://www.apache.org/).
+
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/pom.xml b/sandbox/ant/sca/branches/tb3/modules/policy/pom.xml
new file mode 100644
index 0000000000..c5cbb15a6c
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/pom.xml
@@ -0,0 +1,39 @@
+<?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 xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+ <parent>
+ <groupId>org.apache.tuscany.sca</groupId>
+ <artifactId>tuscany-modules</artifactId>
+ <version>2.0-M5-SNAPSHOT</version>
+ <relativePath>../pom.xml</relativePath>
+ </parent>
+ <artifactId>tuscany-policy</artifactId>
+ <name>Apache Tuscany SCA Policy Model</name>
+
+ <dependencies>
+ <dependency>
+ <groupId>org.apache.tuscany.sca</groupId>
+ <artifactId>tuscany-extensibility</artifactId>
+ <version>2.0-M5-SNAPSHOT</version>
+ </dependency>
+ </dependencies>
+
+</project>
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/BindingType.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/BindingType.java
new file mode 100644
index 0000000000..f43c428563
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/BindingType.java
@@ -0,0 +1,27 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.policy;
+
+
+/**
+ * Definition of binding type which extends from sca:binding
+ */
+public interface BindingType extends ExtensionType {
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/DefaultPolicyFactory.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/DefaultPolicyFactory.java
new file mode 100644
index 0000000000..2da41675a1
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/DefaultPolicyFactory.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.policy;
+
+import org.apache.tuscany.sca.policy.impl.PolicyFactoryImpl;
+
+/**
+ * A factory for the policy model.
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultPolicyFactory extends PolicyFactoryImpl implements PolicyFactory {
+
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/ExtensionType.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/ExtensionType.java
new file mode 100644
index 0000000000..e7a93c8907
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/ExtensionType.java
@@ -0,0 +1,81 @@
+/*
+ * 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.policy;
+
+import java.util.List;
+
+import javax.xml.namespace.QName;
+
+/**
+ * Definition of extension type: binding or implementation
+ */
+public interface ExtensionType {
+ QName BINDING_BASE = new QName("http://docs.oasis-open.org/ns/opencsa/sca/200903", "binding");
+ QName IMPLEMENTATION_BASE = new QName("http://docs.oasis-open.org/ns/opencsa/sca/200903", "implementation");
+
+ /**
+ * The name of the extension type (binding or implementation). The extension type name
+ * attribute MUST be the QName of an XSD global element definition used for
+ * binding/implementation elements of that type
+ *
+ * @return The QName of this type
+ */
+ QName getType();
+
+ /**
+ * Set the QName for this type
+ * @param type The QName of this type
+ */
+ void setType(QName type);
+
+ QName getBaseType();
+
+ /**
+ * A set of intents. The intents in the alwaysProvides set are always
+ * provided by this extension type, whether the intents are attached
+ * to the using component or not.
+ *
+ * @return A list of intents that are always provided by this type
+ */
+ List<Intent> getAlwaysProvidedIntents();
+
+ /**
+ * a set of intents. The intents in the mayProvide set are provided by this
+ * extension type if the intent in question is attached to the using
+ * component.
+ *
+ * @return A list of intents that may be provided by this type
+ */
+ List<Intent> getMayProvidedIntents();
+ /**
+ * Returns true if the model element is unresolved.
+ *
+ * @return true if the model element is unresolved.
+ */
+ boolean isUnresolved();
+
+ /**
+ * Sets whether the model element is unresolved.
+ *
+ * @param unresolved whether the model element is unresolved
+ */
+ void setUnresolved(boolean unresolved);
+
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/ImplementationType.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/ImplementationType.java
new file mode 100644
index 0000000000..d142015f57
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/ImplementationType.java
@@ -0,0 +1,27 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.policy;
+
+
+/**
+ * Definition of an implementation type which extends from sca:implementation
+ */
+public interface ImplementationType extends ExtensionType {
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/Intent.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/Intent.java
new file mode 100644
index 0000000000..b79ccdab78
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/Intent.java
@@ -0,0 +1,160 @@
+/*
+ * 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.policy;
+
+import java.util.List;
+
+import javax.xml.namespace.QName;
+
+/**
+ * Represents a policy intent. See the Policy Framework specification for a
+ * description of this element.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface Intent {
+ enum Type {
+ interaction, implementation
+ };
+
+ /**
+ * Returns the intent name.
+ *
+ * @return the intent name
+ */
+ QName getName();
+
+ /**
+ * Sets the intent name
+ *
+ * @param name the intent name
+ */
+ void setName(QName name);
+
+ /**
+ * Returns the list of SCA constructs that this intent is meant to
+ * configure.
+ *
+ * @return the list of SCA constructs that this intent is meant to configure
+ */
+ List<ExtensionType> getConstrainedTypes();
+
+ /**
+ * Return a list of required intents
+ * @return The list of required intents
+ */
+ List<Intent> getRequiredIntents();
+
+ /**
+ * Returns the list of intents which are mutually exclusive with this intent.
+ *
+ * @return the list of mutually exclusive intents.
+ */
+ List<Intent> getExcludedIntents();
+
+ /**
+ * Returns the list of qualified intents.
+ *
+ * @return the list of qualified intents.
+ */
+ List<Intent> getQualifiedIntents();
+
+ /**
+ * Get the default qualified intent
+ *
+ * @return
+ */
+ Intent getDefaultQualifiedIntent();
+
+ /**
+ * Set the default qualified intent
+ *
+ * @param qualifiedIntent
+ */
+ void setDefaultQualifiedIntent(Intent qualifiedIntent);
+
+ /**
+ * Get the intent type: Interaction or Implementation
+ * @return
+ */
+ Type getType();
+
+ /**
+ * Set the intent type
+ * @param type: Interaction or Implementation
+ */
+ void setType(Type type);
+
+ /**
+ * If this attribute is present and has a value of true it indicates that
+ * the qualified intents defined for this intent are mutually exclusive
+ *
+ * @return
+ */
+ boolean isMutuallyExclusive();
+
+ /**
+ * Set the value of mutuallyExclusive
+ * @param mutuallyExclusive
+ */
+ void setMutuallyExclusive(boolean mutuallyExclusive);
+
+ /**
+ * Returns the intent description.
+ *
+ * @return the intent description
+ */
+ String getDescription();
+
+ /**
+ * Sets the intent description.
+ *
+ * @param description the intent description
+ */
+ void setDescription(String description);
+
+ /**
+ * Returns true if the model element is unresolved.
+ *
+ * @return true if the model element is unresolved.
+ */
+
+ /**
+ * Get the parent intent for a qualified intent. If an intent is not qualified,
+ * return null.
+ * @return The parent intent or null if this intent is not qualified
+ */
+ Intent getQualifiableIntent();
+
+ /**
+ * Set the parent intent for a qualified intent
+ * @param intent
+ */
+ void setQualifiableIntent(Intent intent);
+
+ boolean isUnresolved();
+
+ /**
+ * Sets whether the model element is unresolved.
+ *
+ * @param unresolved whether the model element is unresolved
+ */
+ void setUnresolved(boolean unresolved);
+
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/IntentMap.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/IntentMap.java
new file mode 100644
index 0000000000..efed4bfdb1
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/IntentMap.java
@@ -0,0 +1,51 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.policy;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.policy.Intent;
+
+
+/**
+ * Map policies to the qualified intents
+ */
+public interface IntentMap {
+ /**
+ * Returns the intent realized by this intent map.
+ *
+ * @return the intent realized by this intent map
+ */
+ Intent getProvidedIntent();
+
+ /**
+ * Sets the intent realized by this intent map.
+ *
+ * @param providedIntent the intent realized by this intent map
+ */
+ void setProvidedIntent(Intent providedIntent);
+
+ /**
+ * Get a list of qualifiers
+ *
+ * @return A list of qualifiers
+ */
+ List<Qualifier> getQualifiers();
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/PolicyAttachment.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/PolicyAttachment.java
new file mode 100644
index 0000000000..ee4f5b5236
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/PolicyAttachment.java
@@ -0,0 +1,31 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.policy;
+
+import java.util.List;
+
+/**
+ * Attach a policySet to a collection of policy subjects
+ */
+public interface PolicyAttachment {
+ PolicySet getPolicySet();
+ void setPolicySet(PolicySet policySet);
+ List<PolicySubject> getPolicySubjects();
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/PolicyExpression.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/PolicyExpression.java
new file mode 100644
index 0000000000..a29f214f98
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/PolicyExpression.java
@@ -0,0 +1,65 @@
+/*
+ * 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.policy;
+
+import javax.xml.namespace.QName;
+
+/**
+ * Interface that will abstract various types of policy specifications
+ * and attachments for example WS-Policy
+ *
+ * @version $Rev$ $Date$
+ */
+public interface PolicyExpression {
+ /**
+ * Get the QName of the policy expression
+ * @return the QName of the policy expression
+ */
+ QName getName();
+
+ /**
+ * Set the QName of the policy expression
+ * @param name
+ */
+ void setName(QName name);
+
+ /**
+ * Get the policy definition in the type of the specific domain
+ * @return
+ */
+ <T> T getPolicy();
+
+ /**
+ * Set the policy definition
+ * @param expression
+ */
+ <T> void setPolicy(T policy);
+
+ /**
+ *
+ * @param unresolved
+ */
+ void setUnresolved(boolean unresolved);
+
+ /**
+ *
+ * @return
+ */
+ boolean isUnresolved();
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/PolicyFactory.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/PolicyFactory.java
new file mode 100644
index 0000000000..9e7de2f6da
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/PolicyFactory.java
@@ -0,0 +1,66 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.policy;
+
+/**
+ * A factory for the policy model.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface PolicyFactory {
+
+ /**
+ * Create a new intent.
+ *
+ * @return a new intent
+ */
+ Intent createIntent();
+
+ /**
+ * Create a new policy set.
+ *
+ * @return a new policy set
+ */
+ PolicySet createPolicySet();
+
+ /**
+ * Create a new intent map.
+ *
+ * @return a new intent map
+ */
+ IntentMap createIntentMap();
+
+ /**
+ * create a new Qualifier
+ *
+ * @return a Qualifier
+ */
+ Qualifier createQualifier();
+
+ /**
+ * Create a new PolicyExpression
+ * @return
+ */
+ PolicyExpression createPolicyExpression();
+
+ ExtensionType createExtensionType();
+ BindingType createBindingType();
+ ImplementationType createImplementationType();
+
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/PolicySet.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/PolicySet.java
new file mode 100644
index 0000000000..2b5b8458d5
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/PolicySet.java
@@ -0,0 +1,146 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.policy;
+
+import java.util.List;
+
+import javax.xml.namespace.QName;
+import javax.xml.xpath.XPathExpression;
+
+/**
+ * Represents a policy set. See the Policy Framework specification for a
+ * description of this element.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface PolicySet {
+
+ /**
+ * Returns the intent name.
+ *
+ * @return the intent name
+ */
+ QName getName();
+
+ /**
+ * Sets the intent name
+ *
+ * @param name the intent name
+ */
+ void setName(QName name);
+
+ /**
+ * Returns the list of
+ *
+ * @return
+ */
+ List<PolicySet> getReferencedPolicySets();
+
+ /**
+ * Returns the list of provided intents
+ *
+ * @return
+ */
+ List<Intent> getProvidedIntents();
+
+ /**
+ * Returns the list of concrete policies, either WS-Policy policy
+ * attachments, policy references, or policies expressed in another policy
+ * language.
+ *
+ * @return the list of concrete policies
+ */
+ List<PolicyExpression> getPolicies();
+
+ /**
+ * Returns true if the model element is unresolved.
+ *
+ * @return true if the model element is unresolved.
+ */
+ boolean isUnresolved();
+
+ /**
+ * Sets whether the model element is unresolved.
+ *
+ * @param unresolved whether the model element is unresolved
+ */
+ void setUnresolved(boolean unresolved);
+
+ /**
+ * Returns the XPath expression that is to be used to evaluate
+ * if this PolicySet applies to specific policy subject
+ *
+ * @return the XPath expression
+ */
+ String getAppliesTo();
+
+ /**
+ * Sets the XPath expression that is to be used to evaluate
+ * if this PolicySet applies to specific policy subject
+ *
+ */
+ void setAppliesTo(String xpath);
+
+ /**
+ * A string which is an XPath 1.0 expression identifying one or more
+ * elements (policy subject) in the Domain. It is used to declare which
+ * set of elements the policySet is actually attached to.
+ *
+ * @return The attachTo XPath
+ */
+ String getAttachTo();
+
+ /**
+ * Set the attachTo XPath
+ * @param xpath
+ */
+ void setAttachTo(String xpath);
+
+ /**
+ * Get the resolved XPathExpression for attachTo
+ * @return
+ */
+ XPathExpression getAttachToXPathExpression();
+
+ /**
+ * Set the resolved XPathExpression for attachTo
+ * @param expression
+ */
+ void setAttachToXPathExpression(XPathExpression expression);
+
+ /**
+ * Returns the policies / policy attachments provided thro intent maps
+ *
+ * @return
+ */
+ List<IntentMap> getIntentMaps();
+
+ /**
+ * Get the XPath expression for the appliesTo attribute
+ * @return the XPath expression for the appliesTo attribute
+ */
+ XPathExpression getAppliesToXPathExpression();
+
+ /**
+ * Set the XPath expression for the appliesTo attribute
+ * @param xpathExpression the XPath expression for the appliesTo attribute
+ */
+ void setAppliesToXPathExpression(XPathExpression xpathExpression);
+
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/PolicySubject.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/PolicySubject.java
new file mode 100644
index 0000000000..41847bad79
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/PolicySubject.java
@@ -0,0 +1,56 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.policy;
+
+import java.util.List;
+
+/**
+ * A policy subject is an entity in the assembly with which a policy can be
+ * associated.
+ *
+ * For example, a policy subject can be one of the following:
+ * <ul>
+ * <li>composite
+ * <li>component
+ * <li>implementation
+ * <li>service
+ * <li>reference
+ * <li>binding
+ * <li>interface
+ * </ul>
+ */
+public interface PolicySubject {
+ /**
+ * Get a list of required intents
+ *
+ * @return
+ */
+ List<Intent> getRequiredIntents();
+
+ /**
+ * Get a list of attached policySets
+ *
+ * @return A list of policySets
+ */
+ List<PolicySet> getPolicySets();
+
+ ExtensionType getType();
+ void setType(ExtensionType type);
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/Qualifier.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/Qualifier.java
new file mode 100644
index 0000000000..c1862283c7
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/Qualifier.java
@@ -0,0 +1,44 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.policy;
+
+import java.util.List;
+
+/**
+ * A qualifier provides a list of policies for a qualified intent within the IntentMap
+ */
+public interface Qualifier {
+ /**
+ * Get the qualified intent for this qualifier
+ * @return The intent
+ */
+ Intent getIntent();
+
+ /**
+ * Set the qualified intent for this qualifier
+ */
+ void setIntent(Intent intent);
+
+ /**
+ * Get the list of policies provided by this qualifier
+ * @return A list of policies
+ */
+ List<PolicyExpression> getPolicies();
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/BindingTypeImpl.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/BindingTypeImpl.java
new file mode 100644
index 0000000000..53c6684d11
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/BindingTypeImpl.java
@@ -0,0 +1,38 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.policy.impl;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.policy.BindingType;
+
+/**
+ * Concrete implementation for a BindingType
+ *
+ * @version $Rev$ $Date$
+ */
+public class BindingTypeImpl extends ExtensionTypeImpl implements BindingType {
+ protected BindingTypeImpl() {
+ super();
+ }
+
+ public QName getBaseType() {
+ return BINDING_BASE;
+ }
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/ExtensionTypeImpl.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/ExtensionTypeImpl.java
new file mode 100644
index 0000000000..97fbc19ced
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/ExtensionTypeImpl.java
@@ -0,0 +1,97 @@
+/*
+ * 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.policy.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.policy.ExtensionType;
+import org.apache.tuscany.sca.policy.Intent;
+
+/**
+ * Concrete implementation for a BindingType
+ *
+ * @version $Rev$ $Date$
+ */
+public class ExtensionTypeImpl implements ExtensionType {
+
+ private List<Intent> alwaysProvides = new ArrayList<Intent>();
+ private List<Intent> mayProvide = new ArrayList<Intent>();
+ private QName typeName;
+ private boolean unResolved = true;
+
+ protected ExtensionTypeImpl() {
+
+ }
+
+ public List<Intent> getAlwaysProvidedIntents() {
+ return alwaysProvides;
+ }
+
+ public List<Intent> getMayProvidedIntents() {
+ return mayProvide;
+ }
+
+ public QName getType() {
+ return typeName;
+ }
+
+ public void setType(QName type) {
+ this.typeName = type;
+ }
+
+ public boolean isUnresolved() {
+ return unResolved;
+ }
+
+ public void setUnresolved(boolean unresolved) {
+ this.unResolved = unresolved;
+ }
+
+ @Override
+ public int hashCode() {
+ return String.valueOf(getType()).hashCode();
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (obj == this) {
+ return true;
+ } else if (obj instanceof ExtensionTypeImpl) {
+ if (getType() != null) {
+ return getType().equals(((ExtensionTypeImpl)obj).getType());
+ } else {
+ return ((ExtensionTypeImpl)obj).getType() == null;
+ }
+ } else {
+ return false;
+ }
+ }
+
+ @Override
+ public String toString() {
+ return (this.typeName != null) ? getType().toString() : "null";
+ }
+
+ public QName getBaseType() {
+ return null;
+ }
+};
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/ImplementationTypeImpl.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/ImplementationTypeImpl.java
new file mode 100644
index 0000000000..169ca29833
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/ImplementationTypeImpl.java
@@ -0,0 +1,39 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.policy.impl;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.policy.ImplementationType;
+
+/**
+ * Concrete implementation for a Implementation Type
+ *
+ * @version $Rev$ $Date$
+ */
+public class ImplementationTypeImpl extends ExtensionTypeImpl implements ImplementationType {
+ protected ImplementationTypeImpl() {
+ super();
+ }
+
+ public QName getBaseType() {
+ return IMPLEMENTATION_BASE;
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/IntentImpl.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/IntentImpl.java
new file mode 100644
index 0000000000..27a77f3ba8
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/IntentImpl.java
@@ -0,0 +1,168 @@
+/*
+ * 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.policy.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.policy.ExtensionType;
+import org.apache.tuscany.sca.policy.Intent;
+
+/**
+ * Represents a policy intent.
+ *
+ * @version $Rev$ $Date$
+ */
+public class IntentImpl implements Intent {
+
+ private QName name;
+ private Type type;
+ private List<ExtensionType> constrainedTypes = new ArrayList<ExtensionType>();
+ private String description;
+ private List<Intent> qualifiedIntents = new ArrayList<Intent>();
+ private Intent defaultQualifiedIntent;
+ private Intent parent;
+ private List<Intent> requiredIntents = new ArrayList<Intent>();
+ private List<Intent> excludedIntents = new ArrayList<Intent>();
+ private boolean mutuallyExclusive;
+ private boolean unresolved = true;
+
+ protected IntentImpl() {
+ }
+
+ public QName getName() {
+ return name;
+ }
+
+ public void setName(QName name) {
+ this.name = name;
+ }
+
+ public List<ExtensionType> getConstrainedTypes() {
+ return constrainedTypes;
+ }
+
+ public void setConstrainedTypes(List<ExtensionType> constrainedTypes) {
+ this.constrainedTypes = constrainedTypes;
+ }
+
+ public String getDescription() {
+ return description;
+ }
+
+ public void setDescription(String description) {
+ this.description = description;
+ }
+
+ public Intent getQualifiableIntent() {
+ return parent;
+ }
+
+ public void setQualifiableIntent(Intent parent) {
+ this.parent = parent;
+ }
+
+ public List<Intent> getQualifiedIntents() {
+ return qualifiedIntents;
+ }
+
+ public void setQualifiedIntents(List<Intent> qualifiedIntents) {
+ this.qualifiedIntents = qualifiedIntents;
+ }
+
+ public List<Intent> getRequiredIntents() {
+ return requiredIntents;
+ }
+
+ public void setRequiredIntents(List<Intent> requiredIntents) {
+ this.requiredIntents = requiredIntents;
+ }
+
+ public List<Intent> getExcludedIntents() {
+ return excludedIntents;
+ }
+
+ public void setExcludedIntents(List<Intent> excludedIntents) {
+ this.excludedIntents = excludedIntents;
+ }
+
+ public boolean isUnresolved() {
+ return unresolved;
+ }
+
+ public void setUnresolved(boolean unresolved) {
+ this.unresolved = unresolved;
+ }
+
+ public Type getType() {
+ return type;
+ }
+
+ public void setType(Type type) {
+ this.type = type;
+ }
+
+ public boolean isMutuallyExclusive() {
+ return mutuallyExclusive;
+ }
+
+ public void setMutuallyExclusive(boolean mutuallyExclusive) {
+ this.mutuallyExclusive = mutuallyExclusive;
+ }
+
+ public Intent getDefaultQualifiedIntent() {
+ return defaultQualifiedIntent;
+ }
+
+ public void setDefaultQualifiedIntent(Intent defaultQualifiedIntent) {
+ this.defaultQualifiedIntent = defaultQualifiedIntent;
+ }
+
+
+ @Override
+ public int hashCode() {
+ final int prime = 31;
+ int result = 1;
+ result = prime * result + ((name == null) ? 0 : name.hashCode());
+ return result;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj)
+ return true;
+ if (obj == null)
+ return false;
+ if (getClass() != obj.getClass())
+ return false;
+ IntentImpl other = (IntentImpl)obj;
+ if (name == null) {
+ if (other.name != null)
+ return false;
+ } else if (!name.equals(other.name))
+ return false;
+ return true;
+ }
+
+ public String toString() {
+ return String.valueOf(name);
+ }
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/IntentMapImpl.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/IntentMapImpl.java
new file mode 100644
index 0000000000..6e2941ff5c
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/IntentMapImpl.java
@@ -0,0 +1,61 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.policy.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.IntentMap;
+import org.apache.tuscany.sca.policy.Qualifier;
+
+/**
+ * Represents an intent map.
+ *
+ * @version $Rev$ $Date$
+ */
+public class IntentMapImpl implements IntentMap {
+
+ private boolean unresolved;
+ private Intent providedIntent;
+ private List<Qualifier> qualifiers = new ArrayList<Qualifier>();
+
+ protected IntentMapImpl() {
+ }
+
+ public boolean isUnresolved() {
+ return unresolved;
+ }
+
+ public void setUnresolved(boolean unresolved) {
+ this.unresolved = unresolved;
+ }
+
+ public Intent getProvidedIntent() {
+ return providedIntent;
+ }
+
+ public void setProvidedIntent(Intent providedIntent) {
+ this.providedIntent = providedIntent;
+ }
+
+ public List<Qualifier> getQualifiers() {
+ return qualifiers;
+ }
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/PolicyExpressionImpl.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/PolicyExpressionImpl.java
new file mode 100644
index 0000000000..71e5eef6a7
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/PolicyExpressionImpl.java
@@ -0,0 +1,86 @@
+/*
+ * 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.policy.impl;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.policy.PolicyExpression;
+
+public class PolicyExpressionImpl implements PolicyExpression {
+ private QName name;
+ private Object policy;
+ private boolean unresolved = true;
+
+ protected PolicyExpressionImpl() {
+ }
+
+ public QName getName() {
+ return name;
+ }
+
+ public <T> T getPolicy() {
+ return (T)policy;
+ }
+
+ public boolean isUnresolved() {
+ return unresolved;
+ }
+
+ public void setName(QName name) {
+ this.name = name;
+ }
+
+ public <T> void setPolicy(T policy) {
+ this.policy = policy;
+ }
+
+ public void setUnresolved(boolean unresolved) {
+ this.unresolved = unresolved;
+ }
+
+ public String toString() {
+ return String.valueOf(name);
+ }
+
+ @Override
+ public int hashCode() {
+ final int prime = 31;
+ int result = 1;
+ result = prime * result + ((name == null) ? 0 : name.hashCode());
+ return result;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj)
+ return true;
+ if (obj == null)
+ return false;
+ if (getClass() != obj.getClass())
+ return false;
+ PolicyExpressionImpl other = (PolicyExpressionImpl)obj;
+ if (name == null) {
+ if (other.name != null)
+ return false;
+ } else if (!name.equals(other.name))
+ return false;
+ return true;
+ }
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/PolicyFactoryImpl.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/PolicyFactoryImpl.java
new file mode 100644
index 0000000000..c67ff1eab8
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/PolicyFactoryImpl.java
@@ -0,0 +1,70 @@
+/*
+ * 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.policy.impl;
+
+import org.apache.tuscany.sca.policy.BindingType;
+import org.apache.tuscany.sca.policy.ExtensionType;
+import org.apache.tuscany.sca.policy.ImplementationType;
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.IntentMap;
+import org.apache.tuscany.sca.policy.PolicyExpression;
+import org.apache.tuscany.sca.policy.PolicyFactory;
+import org.apache.tuscany.sca.policy.PolicySet;
+import org.apache.tuscany.sca.policy.Qualifier;
+
+/**
+ * A factory for the policy model.
+ *
+ * @version $Rev$ $Date$
+ */
+public abstract class PolicyFactoryImpl implements PolicyFactory {
+
+ public Intent createIntent() {
+ return new IntentImpl();
+ }
+
+ public PolicySet createPolicySet() {
+ return new PolicySetImpl();
+ }
+
+ public IntentMap createIntentMap() {
+ return new IntentMapImpl();
+ }
+
+ public Qualifier createQualifier() {
+ return new QualifierImpl();
+ }
+
+ public PolicyExpression createPolicyExpression() {
+ return new PolicyExpressionImpl();
+ }
+
+ public BindingType createBindingType() {
+ return new BindingTypeImpl();
+ }
+
+ public ImplementationType createImplementationType() {
+ return new ImplementationTypeImpl();
+ }
+
+ public ExtensionType createExtensionType() {
+ return new ExtensionTypeImpl();
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/PolicySetImpl.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/PolicySetImpl.java
new file mode 100644
index 0000000000..75d1229cd8
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/PolicySetImpl.java
@@ -0,0 +1,145 @@
+/*
+ * 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.policy.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.xml.namespace.QName;
+import javax.xml.xpath.XPathExpression;
+
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.IntentMap;
+import org.apache.tuscany.sca.policy.PolicyExpression;
+import org.apache.tuscany.sca.policy.PolicySet;
+
+/**
+ * Represents a policy set.
+ *
+ * @version $Rev$ $Date$
+ */
+public class PolicySetImpl implements PolicySet {
+
+ private QName name;
+ private String appliesTo;
+ private String attachTo;
+ private List<Intent> providedIntents = new ArrayList<Intent>();
+ private List<PolicySet> referencedPolicySets = new ArrayList<PolicySet>();
+ private boolean unresolved = true;
+
+ private XPathExpression appliesToXPathExpression;
+ private XPathExpression attachToXPathExpression;
+
+ private List<IntentMap> intentMaps = new ArrayList<IntentMap>();
+ private List<PolicyExpression> policies = new ArrayList<PolicyExpression>();
+
+ public QName getName() {
+ return name;
+ }
+
+ public void setName(QName name) {
+ this.name = name;
+ }
+
+ public String getAppliesTo() {
+ return appliesTo;
+ }
+
+ public void setAppliesTo(String appliesTo) {
+ this.appliesTo = appliesTo;
+ }
+
+ public String getAttachTo() {
+ return attachTo;
+ }
+
+ public void setAttachTo(String attachTo) {
+ this.attachTo = attachTo;
+ }
+
+ public boolean isUnresolved() {
+ return unresolved;
+ }
+
+ public void setUnresolved(boolean unresolved) {
+ this.unresolved = unresolved;
+ }
+
+ public XPathExpression getAppliesToXPathExpression() {
+ return appliesToXPathExpression;
+ }
+
+ public void setAppliesToXPathExpression(XPathExpression appliesToXPathExpression) {
+ this.appliesToXPathExpression = appliesToXPathExpression;
+ }
+
+ public XPathExpression getAttachToXPathExpression() {
+ return attachToXPathExpression;
+ }
+
+ public void setAttachToXPathExpression(XPathExpression attachToXPathExpression) {
+ this.attachToXPathExpression = attachToXPathExpression;
+ }
+
+ public List<IntentMap> getIntentMaps() {
+ return intentMaps;
+ }
+
+ public List<Intent> getProvidedIntents() {
+ return providedIntents;
+ }
+
+ public List<PolicySet> getReferencedPolicySets() {
+ return referencedPolicySets;
+ }
+
+ public List<PolicyExpression> getPolicies() {
+ return policies;
+ }
+
+ public String toString() {
+ return String.valueOf(name);
+ }
+
+ @Override
+ public int hashCode() {
+ final int prime = 31;
+ int result = 1;
+ result = prime * result + ((name == null) ? 0 : name.hashCode());
+ return result;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj)
+ return true;
+ if (obj == null)
+ return false;
+ if (getClass() != obj.getClass())
+ return false;
+ PolicySetImpl other = (PolicySetImpl)obj;
+ if (name == null) {
+ if (other.name != null)
+ return false;
+ } else if (!name.equals(other.name))
+ return false;
+ return true;
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/QualifierImpl.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/QualifierImpl.java
new file mode 100644
index 0000000000..102bea8d41
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/impl/QualifierImpl.java
@@ -0,0 +1,48 @@
+/*
+ * 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.policy.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.PolicyExpression;
+import org.apache.tuscany.sca.policy.Qualifier;
+
+public class QualifierImpl implements Qualifier {
+ private Intent intent;
+ private List<PolicyExpression> policies = new ArrayList<PolicyExpression>();
+
+ protected QualifierImpl() {
+ }
+
+ public Intent getIntent() {
+ return intent;
+ }
+
+ public List<PolicyExpression> getPolicies() {
+ return policies;
+ }
+
+ public void setIntent(Intent intent) {
+ this.intent = intent;
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/util/PolicyComputationUtils.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/util/PolicyComputationUtils.java
new file mode 100644
index 0000000000..fe61ce707c
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/util/PolicyComputationUtils.java
@@ -0,0 +1,370 @@
+/*
+ * 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.policy.util;
+
+import static javax.xml.XMLConstants.XMLNS_ATTRIBUTE_NS_URI;
+
+import java.io.InputStream;
+import java.io.StringWriter;
+import java.security.AccessController;
+import java.security.PrivilegedActionException;
+import java.security.PrivilegedExceptionAction;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+import javax.xml.namespace.NamespaceContext;
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.transform.Result;
+import javax.xml.transform.Source;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerConfigurationException;
+import javax.xml.transform.TransformerException;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.dom.DOMSource;
+import javax.xml.transform.stream.StreamResult;
+import javax.xml.xpath.XPathConstants;
+import javax.xml.xpath.XPathExpression;
+import javax.xml.xpath.XPathExpressionException;
+
+import org.apache.tuscany.sca.policy.ExtensionType;
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.PolicySet;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+
+/**
+ * Utility methods used during computation of PolicyIntents and PolicySets sets
+ *
+ * @version $Rev$ $Date$
+ */
+public class PolicyComputationUtils {
+ private static final String POLICYSET_PREFIX = "tp_";
+ private static final String APPLICABLE_POLICYSET_ATTR_NS = "http://tuscany.apache.org/xmlns/sca/1.1";
+ private static final String APPLICABLE_POLICYSET_ATTR = "applicablePolicySets";
+ private static final String POLICY_SETS_ATTR = "policySets";
+ private static final String APPLICABLE_POLICYSET_ATTR_PREFIX = "tuscany";
+ private static final String SCA11_NS = "http://docs.oasis-open.org/ns/opencsa/sca/200903";
+
+ /**
+ * This method unconditionally adds intents from the source list to the target list.
+ * It is used for intermediate intent inheritance between promotion levels
+ * (e.g. between a composite service and a component service). It does not check
+ * whether there are conflicting (mutually exclusive) intents. This is because
+ * promotion cannot override intents. If the resulting target list has conflicting
+ * intents, this will be detected later during policy computation.
+ */
+ public static void addInheritedIntents(List<Intent> sourceList, List<Intent> targetList) {
+ if (sourceList != null) {
+ targetList.addAll(sourceList);
+ }
+ }
+
+ public static void addInheritedPolicySets(List<PolicySet> sourceList,
+ List<PolicySet> targetList,
+ boolean checkOverrides) {
+ // check overrides is true when policysets are to be copied from
+ // componentType to component level
+ if (checkOverrides) {
+ // aggregate all the provided intents present in the target
+ List<Intent> targetProvidedIntents = new ArrayList<Intent>();
+ for (PolicySet policySet : targetList) {
+ targetProvidedIntents.addAll(policySet.getProvidedIntents());
+ }
+
+ // for every policy set in the source check if it provides one of
+ // the intents that is
+ // already provided by the policysets in the destination and do not
+ // copy them.
+ for (PolicySet policySet : sourceList) {
+ for (Intent sourceProvidedIntent : policySet.getProvidedIntents()) {
+ if (!targetProvidedIntents.contains(sourceProvidedIntent)) {
+ targetList.add(policySet);
+ }
+ }
+ }
+ } else {
+ targetList.addAll(sourceList);
+ }
+ }
+
+ /**
+ * This method is used to inherit intents and policy sets between hierarchical levels
+ * within the same composite (e.g. between a component and its services and references).
+ * In this case the source intents and policy sets provide defaults which are inherited
+ * into the target lists only when there is no conflict. For example consider a component
+ * with 3 references. The component level requires intent 'propagatesTransaction'.
+ * Reference 1 and 2 do not specify an intent, but reference 3 requires 'suspendsTransaction'.
+ * In this case the 'propagatesTransaction' intent is inherited by reference 1 and 2
+ * but not by reference 3.
+ */
+ public static void addDefaultPolicies(List<Intent> sourceIntents,
+ List<PolicySet> sourcePolicySets,
+ List<Intent> targetIntents,
+ List<PolicySet> targetPolicySets) {
+ // form a list of all intents required by the target
+ List<Intent> combinedTargetIntents = new ArrayList<Intent>();
+ combinedTargetIntents.addAll(findAndExpandProfileIntents(targetIntents));
+ for (PolicySet targetPolicySet : targetPolicySets) {
+ combinedTargetIntents.addAll(findAndExpandProfileIntents(targetPolicySet.getProvidedIntents()));
+ }
+
+ // inherit intents in the source list that do not conflict with intents already in the target list
+ for (Intent sourceIntent : findAndExpandProfileIntents(sourceIntents)) {
+ boolean conflict = false;
+ for (Intent excluded : sourceIntent.getExcludedIntents()) {
+ if (combinedTargetIntents.contains(excluded)) {
+ conflict = true;
+ break;
+ }
+ }
+ if (!conflict) {
+ targetIntents.add(sourceIntent);
+ }
+ }
+
+ // inherit policy sets in the source list that do not conflict with policy sets or intents
+ // in the target list
+ for (PolicySet sourcePolicySet : sourcePolicySets) {
+ boolean conflict = false;
+ List<Intent> providedIntents = findAndExpandProfileIntents(sourcePolicySet.getProvidedIntents());
+ checkConflict: for (Intent intent : providedIntents) {
+ for (Intent excluded : intent.getExcludedIntents()) {
+ if (combinedTargetIntents.contains(excluded)) {
+ conflict = true;
+ break checkConflict;
+ }
+ }
+ }
+ if (!conflict)
+ targetPolicySets.add(sourcePolicySet);
+ }
+
+ }
+
+ public static void checkForMutuallyExclusiveIntents(List<Intent> intents,
+ List<PolicySet> policySets,
+ ExtensionType intentAttachPointType,
+ String id) throws PolicyValidationException {
+ // gather all intents (keeping track of where they come from)
+ Map<Intent, PolicySet> combinedIntents = new HashMap<Intent, PolicySet>();
+ for (PolicySet policySet : policySets) {
+ for (Intent providedIntent : findAndExpandProfileIntents(policySet.getProvidedIntents())) {
+ combinedIntents.put(providedIntent, policySet);
+ }
+ }
+ for (Intent intent : intents) {
+ combinedIntents.put(intent, null);
+ }
+
+ // check for conflicts
+ for (Intent intent : combinedIntents.keySet()) {
+ for (Intent excluded : intent.getExcludedIntents()) {
+ if (combinedIntents.keySet().contains(excluded)) {
+ String sIntent1, sIntent2;
+ if (combinedIntents.get(intent) == null)
+ sIntent1 = intent.getName().toString();
+ else
+ sIntent1 =
+ intent.getName().toString() + " in policy set "
+ + combinedIntents.get(intent).getName().toString();
+ if (combinedIntents.get(excluded) == null)
+ sIntent2 = excluded.getName().toString();
+ else
+ sIntent2 =
+ excluded.getName().toString() + " in policy set "
+ + combinedIntents.get(excluded).getName().toString();
+ throw new PolicyValidationException(intentAttachPointType.getType() + " for "
+ + id
+ + " uses mutually-exclusive intents "
+ + sIntent1
+ + " and "
+ + sIntent2);
+ }
+ }
+ }
+ }
+
+ public static void expandProfileIntents(List<Intent> intents) {
+ List<Intent> expandedIntents = null;
+ if (intents.size() > 0) {
+ expandedIntents = findAndExpandProfileIntents(intents);
+ intents.clear();
+ intents.addAll(expandedIntents);
+ }
+ }
+
+ public static List<Intent> findAndExpandProfileIntents(List<Intent> intents) {
+ List<Intent> expandedIntents = new ArrayList<Intent>();
+ for (Intent intent : intents) {
+ if (!intent.getRequiredIntents().isEmpty()) {
+ List<Intent> requiredIntents = intent.getRequiredIntents();
+ expandedIntents.addAll(findAndExpandProfileIntents(requiredIntents));
+ } else {
+ expandedIntents.add(intent);
+ }
+ }
+ return expandedIntents;
+ }
+
+ private static byte[] addApplicablePolicySets(Document doc, Collection<PolicySet> policySets)
+ throws XPathExpressionException, TransformerConfigurationException, TransformerException {
+
+ for (PolicySet policySet : policySets) {
+ if (policySet.getAppliesTo() != null) {
+ addApplicablePolicySets(policySet, doc);
+ }
+ }
+
+ StringWriter sw = new StringWriter();
+ final Source domSource = new DOMSource(doc);
+ final Result finalResult = new StreamResult(sw);
+ final Transformer transformer = TransformerFactory.newInstance().newTransformer();
+ // transformer.setOutputProperty("omit-xml-declaration", "yes");
+ // Allow priviledged access to let transformers read property files. Requires
+ // PropertyPermission in security policy.
+ try {
+ AccessController.doPrivileged(new PrivilegedExceptionAction<Object>() {
+ public Object run() throws TransformerException {
+ transformer.transform(domSource, finalResult);
+ return null;
+ }
+ });
+ } catch (PrivilegedActionException e) {
+ throw (TransformerException)e.getException();
+ }
+
+ return sw.toString().getBytes();
+ }
+
+ private static void addApplicablePolicySets(PolicySet policySet, Document doc) throws XPathExpressionException {
+ XPathExpression expression = policySet.getAppliesToXPathExpression();
+ NodeList result = (NodeList)expression.evaluate(doc, XPathConstants.NODESET);
+
+ if (result != null) {
+ for (int counter = 0; counter < result.getLength(); ++counter) {
+ Node aResultNode = result.item(counter);
+
+ String applicablePolicySets = null;
+
+ String policySetPrefix = declareNamespace((Element)aResultNode, policySet.getName().getNamespaceURI());
+ String appPolicyAttrPrefix = declareNamespace((Element)aResultNode, APPLICABLE_POLICYSET_ATTR_NS);
+ if (aResultNode.getAttributes().getNamedItemNS(APPLICABLE_POLICYSET_ATTR_NS, APPLICABLE_POLICYSET_ATTR) != null) {
+ applicablePolicySets =
+ aResultNode.getAttributes().getNamedItemNS(APPLICABLE_POLICYSET_ATTR_NS,
+ APPLICABLE_POLICYSET_ATTR).getNodeValue();
+ }
+
+ if (applicablePolicySets != null && applicablePolicySets.length() > 0) {
+ applicablePolicySets =
+ applicablePolicySets + " " + policySetPrefix + ":" + policySet.getName().getLocalPart();
+ } else {
+ applicablePolicySets = policySetPrefix + ":" + policySet.getName().getLocalPart();
+ }
+
+ ((Element)aResultNode).setAttributeNS(APPLICABLE_POLICYSET_ATTR_NS, appPolicyAttrPrefix + ":"
+ + APPLICABLE_POLICYSET_ATTR, applicablePolicySets);
+ }
+ }
+ }
+
+ public static byte[] addApplicablePolicySets(InputStream is,
+ Collection<PolicySet> domainPolicySets,
+ DocumentBuilderFactory documentBuilderFactory) throws Exception {
+ documentBuilderFactory.setNamespaceAware(true);
+ DocumentBuilder db = documentBuilderFactory.newDocumentBuilder();
+ Document doc = db.parse(is);
+ is.close();
+ return addApplicablePolicySets(doc, domainPolicySets);
+ }
+
+ private static class DOMNamespaceContext implements NamespaceContext {
+ private Node node;
+
+ /**
+ * @param node
+ */
+ public DOMNamespaceContext(Node node) {
+ super();
+ this.node = node;
+ }
+
+ public String getNamespaceURI(String prefix) {
+ return node.lookupNamespaceURI(prefix);
+ }
+
+ public String getPrefix(String namespaceURI) {
+ return node.lookupPrefix(namespaceURI);
+ }
+
+ public Iterator<?> getPrefixes(String namespaceURI) {
+ return null;
+ }
+
+ }
+
+ private static String declareNamespace(Element element, String ns) {
+ if (ns == null) {
+ ns = "";
+ }
+ Node node = element;
+ String prefix = "";
+ boolean declared = false;
+ while (node != null && node.getNodeType() == Node.ELEMENT_NODE) {
+ if (node.lookupPrefix(ns) != null) {
+ prefix = node.lookupPrefix(ns);
+ declared = true;
+ break;
+ } else {
+ /*NamedNodeMap attrs = node.getAttributes();
+ if (attrs == null) {
+ break;
+ }
+ Node attr = attrs.getNamedItem(qname);
+ if (attr != null) {
+ declared = ns.equals(attr.getNodeValue());
+ break;
+ }*/
+ node = node.getParentNode();
+ }
+ }
+ if (!declared) {
+ // Find an available prefix
+ for (int i = 1;; i++) {
+ prefix = POLICYSET_PREFIX + i;
+ if (element.lookupNamespaceURI(prefix) == null) {
+ break;
+ }
+ }
+ String qname = "xmlns:" + prefix;
+ org.w3c.dom.Attr attr = element.getOwnerDocument().createAttributeNS(XMLNS_ATTRIBUTE_NS_URI, qname);
+ attr.setValue(ns);
+ element.setAttributeNodeNS(attr);
+ }
+ return prefix;
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/util/PolicyValidationException.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/util/PolicyValidationException.java
new file mode 100644
index 0000000000..eb97818042
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/util/PolicyValidationException.java
@@ -0,0 +1,38 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.policy.util;
+
+/**
+ * Exception to be throw for invalid policy intents / policysets
+ *
+ * @version $Rev$ $Date$
+ */
+public class PolicyValidationException extends Exception {
+ private static final long serialVersionUID = 506979037642587755L;
+
+ public PolicyValidationException(String message) {
+ super(message);
+ }
+
+ public PolicyValidationException(Throwable e) {
+ super(e);
+ }
+
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/util/PolicyValidationUtils.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/util/PolicyValidationUtils.java
new file mode 100644
index 0000000000..c8fe89f364
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/java/org/apache/tuscany/sca/policy/util/PolicyValidationUtils.java
@@ -0,0 +1,98 @@
+/*
+ * 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.policy.util;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.policy.ExtensionType;
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.PolicySet;
+import org.apache.tuscany.sca.policy.PolicySubject;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class PolicyValidationUtils {
+
+ public static boolean isConstrained(ExtensionType constrained, ExtensionType attachPointType) {
+ return (attachPointType != null
+ && (attachPointType.equals(constrained)) || (attachPointType.getBaseType().equals(constrained)));
+ }
+
+ public static void validateIntents(PolicySubject attachPoint, ExtensionType attachPointType)
+ throws PolicyValidationException {
+ boolean found = false;
+ if (attachPointType != null) {
+ // validate intents specified against the parent (binding /
+ // implementation)
+ found = false;
+ for (Intent intent : attachPoint.getRequiredIntents()) {
+ if (!intent.isUnresolved()) {
+ for (ExtensionType constrained : intent.getConstrainedTypes()) {
+ if (isConstrained(constrained, attachPointType)) {
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ throw new PolicyValidationException("Policy Intent '" + intent.getName()
+ + "' does not constrain extension type "
+ + attachPointType.getType());
+ }
+ } else {
+ throw new PolicyValidationException("Policy Intent '" + intent.getName()
+ + "' is not defined in this domain ");
+ }
+ }
+ }
+ }
+
+ public static void validatePolicySets(PolicySubject subject) throws PolicyValidationException {
+ // validatePolicySets(subject, subject.getType(), subject.getAttachedPolicySets());
+ }
+
+ public static void validatePolicySets(PolicySubject subject, ExtensionType attachPointType)
+ throws PolicyValidationException {
+ validatePolicySets(subject, attachPointType, subject.getPolicySets());
+ }
+
+ public static void validatePolicySets(PolicySubject subject,
+ ExtensionType attachPointType,
+ List<PolicySet> applicablePolicySets) throws PolicyValidationException {
+ // Since the applicablePolicySets in a subject will already
+ // have the list of policysets that might ever be applicable to this attachPoint,
+ // just check if the defined policysets feature in the list of applicable
+ // policysets
+ for (PolicySet definedPolicySet : subject.getPolicySets()) {
+ if (!definedPolicySet.isUnresolved()) {
+ if (!applicablePolicySets.contains(definedPolicySet)) {
+ throw new PolicyValidationException("Policy Set '" + definedPolicySet.getName()
+ + "' does not apply to extension type "
+ + attachPointType.getType());
+ }
+ } else {
+ throw new PolicyValidationException("Policy Set '" + definedPolicySet.getName()
+ + "' is not defined in this domain ");
+
+ }
+ }
+ }
+}
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/main/resources/META-INF/services/org.apache.tuscany.sca.policy.PolicyFactory b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/resources/META-INF/services/org.apache.tuscany.sca.policy.PolicyFactory
new file mode 100644
index 0000000000..846b3b24a4
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/main/resources/META-INF/services/org.apache.tuscany.sca.policy.PolicyFactory
@@ -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.policy.DefaultPolicyFactory \ No newline at end of file
diff --git a/sandbox/ant/sca/branches/tb3/modules/policy/src/test/java/org/apache/tuscany/sca/policy/PolicyFactoryTestCase.java b/sandbox/ant/sca/branches/tb3/modules/policy/src/test/java/org/apache/tuscany/sca/policy/PolicyFactoryTestCase.java
new file mode 100644
index 0000000000..2775c4ac71
--- /dev/null
+++ b/sandbox/ant/sca/branches/tb3/modules/policy/src/test/java/org/apache/tuscany/sca/policy/PolicyFactoryTestCase.java
@@ -0,0 +1,55 @@
+/*
+ * 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.policy;
+
+import static org.junit.Assert.assertEquals;
+
+import javax.xml.namespace.QName;
+
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * Test building of policy model instances using the policy factory.
+ *
+ * @version $Rev$ $Date$
+ */
+public class PolicyFactoryTestCase {
+
+ PolicyFactory factory;
+
+ @Before
+ public void setUp() throws Exception {
+ factory = new DefaultPolicyFactory();
+ }
+
+ @Test
+ public void testCreateIntent() {
+ Intent intent = factory.createIntent();
+ intent.setName(new QName("http://test", "reliability"));
+ assertEquals(intent.getName(), new QName("http://test", "reliability"));
+ }
+
+ @Test
+ public void testCreatePolicySet() {
+ PolicySet policySet = factory.createPolicySet();
+ policySet.setName(new QName("http://test", "reliability"));
+ assertEquals(policySet.getName(), new QName("http://test", "reliability"));
+ }
+}