- This model is responsible for process the resolution trees as policies

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@801652 13f79535-47bb-0310-9956-ffa450edef68

15 files changed, 680 insertions, 0 deletions

diff --git a/sandbox/dougsleite/policy-resolutiontrees/.classpath b/sandbox/dougsleite/policy-resolutiontrees/.classpath
new file mode 100644
index 0000000000..f42fb64cfa
--- /dev/null
+++ b/sandbox/dougsleite/policy-resolutiontrees/.classpath
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" output="target/classes" path="src/main/java"/>
+	<classpathentry excluding="**" kind="src" output="target/classes" path="src/main/resources"/>
+	<classpathentry kind="src" output="target/test-classes" path="src/test/java"/>
+	<classpathentry excluding="**" kind="src" output="target/test-classes" path="src/test/resources"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.5"/>
+	<classpathentry kind="con" path="org.maven.ide.eclipse.MAVEN2_CLASSPATH_CONTAINER"/>
+	<classpathentry kind="output" path="target/classes"/>
+</classpath>
diff --git a/sandbox/dougsleite/policy-resolutiontrees/.project b/sandbox/dougsleite/policy-resolutiontrees/.project
new file mode 100644
index 0000000000..8e94f3a1bd
--- /dev/null
+++ b/sandbox/dougsleite/policy-resolutiontrees/.project
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>tuscany-policy-recoveryrules</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.maven.ide.eclipse.maven2Builder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.maven.ide.eclipse.maven2Nature</nature>
+	</natures>
+</projectDescription>
diff --git a/sandbox/dougsleite/policy-resolutiontrees/.settings/org.eclipse.jdt.core.prefs b/sandbox/dougsleite/policy-resolutiontrees/.settings/org.eclipse.jdt.core.prefs
new file mode 100644
index 0000000000..b8efdb7c81
--- /dev/null
+++ b/sandbox/dougsleite/policy-resolutiontrees/.settings/org.eclipse.jdt.core.prefs
@@ -0,0 +1,5 @@
+#Tue Jul 28 10:57:12 BRT 2009
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.5
+org.eclipse.jdt.core.compiler.compliance=1.5
+org.eclipse.jdt.core.compiler.source=1.5
diff --git a/sandbox/dougsleite/policy-resolutiontrees/.settings/org.maven.ide.eclipse.prefs b/sandbox/dougsleite/policy-resolutiontrees/.settings/org.maven.ide.eclipse.prefs
new file mode 100644
index 0000000000..8e178853bd
--- /dev/null
+++ b/sandbox/dougsleite/policy-resolutiontrees/.settings/org.maven.ide.eclipse.prefs
@@ -0,0 +1,9 @@
+#Tue Jul 28 10:57:03 BRT 2009
+activeProfiles=
+eclipse.preferences.version=1
+fullBuildGoals=process-test-resources
+includeModules=false
+resolveWorkspaceProjects=true
+resourceFilterGoals=process-resources resources\:testResources
+skipCompilerPlugin=true
+version=1
diff --git a/sandbox/dougsleite/policy-resolutiontrees/pom.xml b/sandbox/dougsleite/policy-resolutiontrees/pom.xml
new file mode 100644
index 0000000000..47ad2be5a9
--- /dev/null
+++ b/sandbox/dougsleite/policy-resolutiontrees/pom.xml
@@ -0,0 +1,93 @@
+<?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:pom="http://maven.apache.org/POM/4.0.0">

+    <modelVersion>4.0.0</modelVersion>

+    <parent>

+        <groupId>org.apache.tuscany.sca</groupId>

+        <artifactId>tuscany-modules</artifactId>

+        <version>1.6-SNAPSHOT</version>

+        <relativePath>../pom.xml</relativePath>

+    </parent>

+    <artifactId>tuscany-policy-resolutiontrees</artifactId>

+    <name>Apache Tuscany SCA Resolution Tree Policy Model</name>

+

+    <dependencies>

+

+        <dependency>

+            <groupId>org.apache.tuscany.sca</groupId>

+            <artifactId>tuscany-contribution</artifactId>

+            <version>1.6-SNAPSHOT</version>

+        </dependency>

+

+        <dependency>

+            <groupId>org.apache.tuscany.sca</groupId>

+            <artifactId>tuscany-assembly-xml</artifactId>

+            <version>1.6-SNAPSHOT</version>

+        </dependency>

+

+        <dependency>

+            <groupId>org.apache.tuscany.sca</groupId>

+            <artifactId>tuscany-policy</artifactId>

+            <version>1.6-SNAPSHOT</version>

+        </dependency>

+

+        <dependency>

+            <groupId>org.apache.tuscany.sca</groupId>

+            <artifactId>tuscany-contribution-impl</artifactId>

+            <version>1.6-SNAPSHOT</version>

+            <scope>test</scope>

+        </dependency>

+

+        <dependency>

+            <groupId>org.apache.ws.commons.axiom</groupId>

+            <artifactId>axiom-impl</artifactId>

+            <version>1.2.7</version>

+        </dependency>

+        <dependency>

+            <groupId>org.apache.tuscany.sca</groupId>

+            <artifactId>tuscany-guardian</artifactId>

+            <version>1.6-SNAPSHOT</version>

+        </dependency>

+    </dependencies>

+

+    <build>

+        <plugins>

+            <plugin>

+                <groupId>org.apache.felix</groupId>

+                <artifactId>maven-bundle-plugin</artifactId>

+

+                <configuration>

+                    <instructions>

+                        <Bundle-Version>${tuscany.version}</Bundle-Version>

+                        <Bundle-SymbolicName>org.apache.tuscany.sca.policy.resolutiontree</Bundle-SymbolicName>

+                        <Bundle-Description>${pom.name}</Bundle-Description>

+                        <Export-Package>org.apache.tuscany.sca.policy.resolutiontree*</Export-Package>

+                    </instructions>

+                </configuration>

+            </plugin>

+        </plugins>

+    </build>

+

+</project>

+

+

+

+

+

diff --git a/sandbox/dougsleite/policy-resolutiontrees/src/main/java/org/apache/tuscany/sca/policy/resolutiontrees/ResolutionTreesPolicy.java b/sandbox/dougsleite/policy-resolutiontrees/src/main/java/org/apache/tuscany/sca/policy/resolutiontrees/ResolutionTreesPolicy.java
new file mode 100644
index 0000000000..2a2972c8ca
--- /dev/null
+++ b/sandbox/dougsleite/policy-resolutiontrees/src/main/java/org/apache/tuscany/sca/policy/resolutiontrees/ResolutionTreesPolicy.java
@@ -0,0 +1,49 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.policy.resolutiontrees;
+
+import java.util.Hashtable;
+import java.util.Map;
+import javax.xml.namespace.QName;
+import org.apache.axiom.om.OMElement;
+import org.apache.tuscany.sca.policy.Policy;
+import org.apache.tuscany.sca.assembly.xml.Constants;
+
+public class ResolutionTreesPolicy implements Policy {
+
+    public static final QName RESOLUTION_TREES_POLICY_QNAME =
+            new QName(Constants.SCA10_TUSCANY_NS, org.apache.tuscany.sca.guardian.Constants.RESOLUTION_TREES);
+    
+    private Map<String, OMElement> resolutionTreeElements = new Hashtable<String, OMElement>();
+
+    public QName getSchemaName() {
+        return RESOLUTION_TREES_POLICY_QNAME;
+    }
+
+    public void setUnresolved(boolean unresolved) {
+    }
+
+    public boolean isUnresolved() {
+        return false;
+    }
+
+    public Map<String, OMElement> getResolutionTreeElements() {
+        return resolutionTreeElements;
+    }
+}
diff --git a/sandbox/dougsleite/policy-resolutiontrees/src/main/java/org/apache/tuscany/sca/policy/resolutiontrees/ResolutionTreesPolicyDefinitionsProvider.java b/sandbox/dougsleite/policy-resolutiontrees/src/main/java/org/apache/tuscany/sca/policy/resolutiontrees/ResolutionTreesPolicyDefinitionsProvider.java
new file mode 100644
index 0000000000..000979ddfc
--- /dev/null
+++ b/sandbox/dougsleite/policy-resolutiontrees/src/main/java/org/apache/tuscany/sca/policy/resolutiontrees/ResolutionTreesPolicyDefinitionsProvider.java
@@ -0,0 +1,59 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.policy.resolutiontrees;
+
+import java.net.URI;
+import java.net.URL;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessorExtensionPoint;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.definitions.SCADefinitions;
+import org.apache.tuscany.sca.provider.SCADefinitionsProvider;
+import org.apache.tuscany.sca.provider.SCADefinitionsProviderException;
+
+public class ResolutionTreesPolicyDefinitionsProvider implements SCADefinitionsProvider {
+
+    private String definitionsFile = "org/apache/tuscany/sca/policy/resolutiontrees/definitions.xml";
+    URLArtifactProcessor urlArtifactProcessor = null;
+
+    public ResolutionTreesPolicyDefinitionsProvider(ExtensionPointRegistry registry) {
+        URLArtifactProcessorExtensionPoint documentProcessors = registry.getExtensionPoint(URLArtifactProcessorExtensionPoint.class);
+        urlArtifactProcessor = (URLArtifactProcessor) documentProcessors.getProcessor(SCADefinitions.class);
+    }
+
+    public SCADefinitions getSCADefinition() throws SCADefinitionsProviderException {
+        URL definitionsFileUrl = AccessController.doPrivileged(new PrivilegedAction<URL>() {
+
+            public URL run() {
+                return getClass().getClassLoader().getResource(definitionsFile);
+            }
+        });
+
+        try {
+            URI uri = new URI(definitionsFile);
+            return (SCADefinitions) urlArtifactProcessor.read(null,
+                    uri,
+                    definitionsFileUrl);
+        } catch (Exception e) {
+            throw new SCADefinitionsProviderException(e);
+        }
+    }
+}
diff --git a/sandbox/dougsleite/policy-resolutiontrees/src/main/java/org/apache/tuscany/sca/policy/resolutiontrees/ResolutionTreesPolicyProcessor.java b/sandbox/dougsleite/policy-resolutiontrees/src/main/java/org/apache/tuscany/sca/policy/resolutiontrees/ResolutionTreesPolicyProcessor.java
new file mode 100644
index 0000000000..ef0f8e9cea
--- /dev/null
+++ b/sandbox/dougsleite/policy-resolutiontrees/src/main/java/org/apache/tuscany/sca/policy/resolutiontrees/ResolutionTreesPolicyProcessor.java
@@ -0,0 +1,157 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.policy.resolutiontrees;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamConstants;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+import org.apache.axiom.om.OMAbstractFactory;
+import org.apache.axiom.om.OMElement;
+import org.apache.axiom.om.OMFactory;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.contribution.service.ContributionReadException;
+import org.apache.tuscany.sca.contribution.service.ContributionResolveException;
+import org.apache.tuscany.sca.contribution.service.ContributionWriteException;
+import org.apache.tuscany.sca.guardian.Constants;
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.monitor.Monitor;
+
+public class ResolutionTreesPolicyProcessor implements StAXArtifactProcessor<ResolutionTreesPolicy>, Constants {
+
+    private static final QName RESOLUTION_TREES_POLICY_QNAME = ResolutionTreesPolicy.RESOLUTION_TREES_POLICY_QNAME;
+
+    public ResolutionTreesPolicyProcessor(ModelFactoryExtensionPoint modelFactories, Monitor monitor) {
+    }
+
+    public ResolutionTreesPolicy read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
+
+        ResolutionTreesPolicy policy = new ResolutionTreesPolicy();
+        QName name = null;
+        String ruleName = null;
+        OMElement ruleElement = null;
+        while (reader.hasNext()) {
+
+            if (reader.isStartElement()) {
+
+                name = reader.getName();
+                if (RESOLUTION_TREE.equals(name.getLocalPart())) {
+
+                    ruleName = reader.getAttributeValue(null, Constants.EXCEPTION_LEVEL);
+                    ruleElement = loadElement(reader);
+
+                    policy.getResolutionTreeElements().put(ruleName, ruleElement);
+                }
+            } else if (reader.isEndElement()) {
+                if (RESOLUTION_TREES_POLICY_QNAME.equals(reader.getName())) {
+                    break;
+                }
+            }
+
+            reader.next();
+        }
+
+        return policy;
+    }
+
+    public void write(ResolutionTreesPolicy policy, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+
+    public QName getArtifactType() {
+        return RESOLUTION_TREES_POLICY_QNAME;
+    }
+
+    public void resolve(ResolutionTreesPolicy arg0, ModelResolver arg1) throws ContributionResolveException {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+
+    public Class<ResolutionTreesPolicy> getModelType() {
+        return ResolutionTreesPolicy.class;
+    }
+
+    private OMElement loadElement(XMLStreamReader reader) throws XMLStreamException {
+        OMFactory fac = OMAbstractFactory.getOMFactory();
+        OMElement head = fac.createOMElement(reader.getName());
+
+        //Load the attributes for the rule tag
+        loadAttributes(reader, head, fac);
+
+        OMElement current = head;
+        while (true) {
+
+            switch (reader.next()) {
+                case XMLStreamConstants.START_ELEMENT:
+
+                    QName name = new QName(reader.getName().getLocalPart());
+                    OMElement child = fac.createOMElement(name, current);
+
+                    int count = reader.getNamespaceCount();
+                    for (int i = 0; i < count; i++) {
+                        String prefix = reader.getNamespacePrefix(i);
+                        String ns = reader.getNamespaceURI(i);
+                        child.declareNamespace(ns, prefix);
+                    }
+
+                    if (!"".equals(name.getNamespaceURI())) {
+                        child.declareNamespace(name.getNamespaceURI(), name.getPrefix());
+                    }
+
+                    // add the attributes for this element
+                    loadAttributes(reader, child, fac);
+                    current = child;
+                    break;
+                case XMLStreamConstants.CDATA:
+                    fac.createOMText(current, reader.getText());
+                    break;
+                case XMLStreamConstants.CHARACTERS:
+                    String text = reader.getText().trim();
+                    if (text.length() != 0) {
+                        fac.createOMText(current, reader.getText());
+                    }
+                    break;
+                case XMLStreamConstants.END_ELEMENT:
+                    if (current == head) {
+                        return head;
+                    } else {
+                        current = (OMElement) current.getParent();
+                    }
+            }
+        }
+    }
+
+    private void loadAttributes(XMLStreamReader reader, OMElement elem, OMFactory fac) {
+        int count = reader.getAttributeCount();
+        for (int i = 0; i < count; i++) {
+            String ns = reader.getAttributeNamespace(i);
+            String prefix = reader.getAttributePrefix(i);
+            String qname = reader.getAttributeLocalName(i);
+            String value = reader.getAttributeValue(i);
+
+            if (ns != null) {
+                elem.addAttribute(qname, value, fac.createOMNamespace(ns, prefix));
+                elem.declareNamespace(ns, prefix);
+            } else {
+                elem.addAttribute(qname, value, null);
+            }
+        }
+    }
+}
diff --git a/sandbox/dougsleite/policy-resolutiontrees/src/main/java/org/apache/tuscany/sca/policy/resolutiontrees/ResolutionTreesPolicyProviderFactory.java b/sandbox/dougsleite/policy-resolutiontrees/src/main/java/org/apache/tuscany/sca/policy/resolutiontrees/ResolutionTreesPolicyProviderFactory.java
new file mode 100644
index 0000000000..23e1513f84
--- /dev/null
+++ b/sandbox/dougsleite/policy-resolutiontrees/src/main/java/org/apache/tuscany/sca/policy/resolutiontrees/ResolutionTreesPolicyProviderFactory.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.resolutiontrees;
+
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.provider.PolicyProvider;
+import org.apache.tuscany.sca.provider.PolicyProviderFactory;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
+import org.apache.tuscany.sca.runtime.RuntimeComponentService;
+
+public class ResolutionTreesPolicyProviderFactory implements PolicyProviderFactory<ResolutionTreesPolicy> {
+
+    public ResolutionTreesPolicyProviderFactory(ExtensionPointRegistry registry) {
+        super();
+    }
+
+    public PolicyProvider createReferencePolicyProvider(RuntimeComponent component,
+                                                        RuntimeComponentReference reference,
+                                                        Binding binding) {
+        return null;
+    }
+
+    public PolicyProvider createServicePolicyProvider(RuntimeComponent component,
+                                                      RuntimeComponentService service,
+                                                      Binding binding) {
+        return null;
+    }
+
+    public PolicyProvider createImplementationPolicyProvider(RuntimeComponent component, Implementation implementation) {
+        return null;
+    }
+
+    public Class<ResolutionTreesPolicy> getModelType() {
+        return ResolutionTreesPolicy.class;
+    }
+}
diff --git a/sandbox/dougsleite/policy-resolutiontrees/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor b/sandbox/dougsleite/policy-resolutiontrees/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor
new file mode 100644
index 0000000000..d8a0e92b7d
--- /dev/null
+++ b/sandbox/dougsleite/policy-resolutiontrees/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor
@@ -0,0 +1,19 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License. 
+
+# Implementation class for the artifact processor extension
+org.apache.tuscany.sca.policy.resolutiontrees.ResolutionTreesPolicyProcessor;qname=http://tuscany.apache.org/xmlns/sca/1.0#recovery_rules,model=org.apache.tuscany.sca.policy.resolutiontrees.ResolutionTreesPolicy
diff --git a/sandbox/dougsleite/policy-resolutiontrees/src/main/resources/META-INF/services/org.apache.tuscany.sca.provider.PolicyProviderFactory b/sandbox/dougsleite/policy-resolutiontrees/src/main/resources/META-INF/services/org.apache.tuscany.sca.provider.PolicyProviderFactory
new file mode 100644
index 0000000000..e69892dcbf
--- /dev/null
+++ b/sandbox/dougsleite/policy-resolutiontrees/src/main/resources/META-INF/services/org.apache.tuscany.sca.provider.PolicyProviderFactory
@@ -0,0 +1,19 @@
+# Licensed to the Apache Software Foundation (ASF) under one

+# or more contributor license agreements.  See the NOTICE file

+# distributed with this work for additional information

+# regarding copyright ownership.  The ASF licenses this file

+# to you under the Apache License, Version 2.0 (the

+# "License"); you may not use this file except in compliance

+# with the License.  You may obtain a copy of the License at

+# 

+#   http://www.apache.org/licenses/LICENSE-2.0

+# 

+# Unless required by applicable law or agreed to in writing,

+# software distributed under the License is distributed on an

+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+# KIND, either express or implied.  See the License for the

+# specific language governing permissions and limitations

+# under the License. 

+

+# Implementation class for the policy extension

+org.apache.tuscany.sca.policy.resolutiontrees.ResolutionTreesPolicyProviderFactory;model=org.apache.tuscany.sca.policy.resolutiontrees.ResolutionTreesPolicy

diff --git a/sandbox/dougsleite/policy-resolutiontrees/src/main/resources/META-INF/services/org.apache.tuscany.sca.provider.SCADefinitionsProvider b/sandbox/dougsleite/policy-resolutiontrees/src/main/resources/META-INF/services/org.apache.tuscany.sca.provider.SCADefinitionsProvider
new file mode 100644
index 0000000000..ee7c2b6e4f
--- /dev/null
+++ b/sandbox/dougsleite/policy-resolutiontrees/src/main/resources/META-INF/services/org.apache.tuscany.sca.provider.SCADefinitionsProvider
@@ -0,0 +1,19 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License. 
+
+# Implementation class for SCA Definitions Providers
+org.apache.tuscany.sca.policy.resolutiontrees.ResolutionTreesPolicyDefinitionsProvider
diff --git a/sandbox/dougsleite/policy-resolutiontrees/src/main/resources/org/apache/tuscany/sca/policy/resolutiontrees/definitions.xml b/sandbox/dougsleite/policy-resolutiontrees/src/main/resources/org/apache/tuscany/sca/policy/resolutiontrees/definitions.xml
new file mode 100644
index 0000000000..df47c23460
--- /dev/null
+++ b/sandbox/dougsleite/policy-resolutiontrees/src/main/resources/org/apache/tuscany/sca/policy/resolutiontrees/definitions.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="ASCII"?>
+<!--
+ * 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.
+-->
+<definitions xmlns="http://www.osoa.org/xmlns/sca/1.0"
+ 			targetNamespace="http://tuscany.apache.org/xmlns/sca/1.0"
+ 			xmlns:sca="http://www.osoa.org/xmlns/sca/1.0"
+ 			xmlns:tuscany="http://tuscany.apache.org/xmlns/sca/1.0">
+
+	<!-- Policy Intents Defined by the SCA Runtime -->
+	<intent name="resolutionTrees" constrains="sca:implementation.java">
+		<description>
+			Describe the resolution trees for the guardian group
+		</description>
+	</intent>
+</definitions>
diff --git a/sandbox/dougsleite/policy-resolutiontrees/src/test/java/org/apache/tuscany/sca/policy/resolutiontrees/PolicyReadTestCase.java b/sandbox/dougsleite/policy-resolutiontrees/src/test/java/org/apache/tuscany/sca/policy/resolutiontrees/PolicyReadTestCase.java
new file mode 100644
index 0000000000..766d4020b0
--- /dev/null
+++ b/sandbox/dougsleite/policy-resolutiontrees/src/test/java/org/apache/tuscany/sca/policy/resolutiontrees/PolicyReadTestCase.java
@@ -0,0 +1,96 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.sca.policy.resolutiontrees;
+
+import java.io.InputStream;
+import java.io.StringWriter;
+import java.net.URL;
+import java.util.Iterator;
+import java.util.Map;
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLOutputFactory;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+import org.junit.Test;
+import org.apache.axiom.om.OMAttribute;
+import org.apache.axiom.om.OMElement;
+import org.apache.tuscany.sca.guardian.Constants;
+
+public class PolicyReadTestCase {
+
+    @Test
+    public void testPolicyReading() throws Exception {
+        ResolutionTreesPolicyProcessor processor = new ResolutionTreesPolicyProcessor(null, null);
+
+        URL url = getClass().getResource("test_policies.xml");
+        XMLInputFactory inputFactory = XMLInputFactory.newInstance();
+
+        InputStream urlStream = url.openStream();
+        XMLStreamReader reader = inputFactory.createXMLStreamReader(urlStream);
+
+
+        ResolutionTreesPolicy policy = processor.read(reader);
+        Map<String, OMElement> map = policy.getResolutionTreeElements();
+
+        StringWriter sw = new StringWriter();
+
+        XMLStreamWriter writter = XMLOutputFactory.newInstance().createXMLStreamWriter(sw);
+        writter.writeStartDocument();
+        writter.writeStartElement(Constants.RECOVERY_RULES);
+
+        writeElements(map.values().iterator(), writter);
+
+        writter.writeEndElement();
+        writter.writeEndDocument();
+        writter.close();
+
+        System.out.println(sw.toString());
+    }
+
+    private void writeElements(Iterator elements, XMLStreamWriter writer) throws Exception {
+
+        OMElement el;
+        OMAttribute at;
+
+        while (elements.hasNext()) {
+            el = (OMElement) elements.next();
+
+            //write the element's name
+            writer.writeStartElement(el.getLocalName());
+
+            //write the attributes
+            Iterator attributes = el.getAllAttributes();
+            while (attributes.hasNext()) {
+                at = (OMAttribute) attributes.next();
+                writer.writeAttribute(at.getLocalName(), at.getAttributeValue());
+            }
+
+            //write texts
+            if (el.getText().length() != 0) {
+                writer.writeCharacters(el.getText());
+            }
+
+            Iterator children = el.getChildElements();
+            writeElements(children, writer);
+
+            writer.writeEndElement();
+        }
+
+    }
+}
diff --git a/sandbox/dougsleite/policy-resolutiontrees/src/test/resources/org/apache/tuscany/sca/policy/resolutiontrees/test_policies.xml b/sandbox/dougsleite/policy-resolutiontrees/src/test/resources/org/apache/tuscany/sca/policy/resolutiontrees/test_policies.xml
new file mode 100644
index 0000000000..405dcde1ae
--- /dev/null
+++ b/sandbox/dougsleite/policy-resolutiontrees/src/test/resources/org/apache/tuscany/sca/policy/resolutiontrees/test_policies.xml
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="ASCII"?>
+<!--
+ * 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.
+-->
+<resolution_trees>
+	<resolution_tree exception_level="1">
+		<exception class="org.exceptions.PrimaryBackupFailedTogetherException">
+			<exception class="org.exceptions.PrimaryFailedException"/>
+			<exception class="org.exceptions.BackupFailedException"/>
+		</exception>
+	</resolution_tree>
+
+	<resolution_tree exception_level="2">
+		<exception class="org.exceptions.UnavailableException">
+			<exception class="org.exceptions.HotelServiceFailedException">
+				<exception class="org.exceptions.RoomBookFailedException"/>
+			</exception>
+			<exception class="org.exceptions.CarServiceFailedException"/>
+		</exception>
+	</resolution_tree>
+</resolution_trees>