Move Tuscany from Incubator to top level.

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@668359 13f79535-47bb-0310-9956-ffa450edef68

7 files changed, 591 insertions, 0 deletions

diff --git a/branches/sca-java-1.2.1/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionGeneratedMetadataDocumentProcessor.java b/branches/sca-java-1.2.1/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionGeneratedMetadataDocumentProcessor.java
new file mode 100644
index 0000000000..58c2c1ba4e
--- /dev/null
+++ b/branches/sca-java-1.2.1/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionGeneratedMetadataDocumentProcessor.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.contribution.xml;
+
+import javax.xml.stream.XMLInputFactory;
+
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+
+/**
+ * URLArtifactProcessor that handles sca-contribution-generated.xml files.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class ContributionGeneratedMetadataDocumentProcessor extends ContributionMetadataDocumentProcessor {
+
+    public ContributionGeneratedMetadataDocumentProcessor(StAXArtifactProcessor staxProcessor, XMLInputFactory inputFactory) {
+        super(staxProcessor, inputFactory);
+    }
+    
+    public String getArtifactType() {
+        return "sca-contribution-generated.xml";
+    }
+}
diff --git a/branches/sca-java-1.2.1/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionMetadataDocumentProcessor.java b/branches/sca-java-1.2.1/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionMetadataDocumentProcessor.java
new file mode 100644
index 0000000000..51f898d802
--- /dev/null
+++ b/branches/sca-java-1.2.1/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionMetadataDocumentProcessor.java
@@ -0,0 +1,99 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.contribution.xml;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URI;
+import java.net.URL;
+import java.net.URLConnection;
+
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.contribution.service.ContributionReadException;
+import org.apache.tuscany.sca.contribution.service.ContributionResolveException;
+
+/**
+ * URLArtifactProcessor that handles sca-contribution.xml files.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class ContributionMetadataDocumentProcessor implements URLArtifactProcessor<Contribution>{
+    private final StAXArtifactProcessor staxProcessor;
+    private final XMLInputFactory inputFactory;
+
+    public ContributionMetadataDocumentProcessor(StAXArtifactProcessor staxProcessor, XMLInputFactory inputFactory) {
+        this.staxProcessor = staxProcessor; 
+        this.inputFactory = inputFactory;
+    }
+    
+    public String getArtifactType() {
+        return "sca-contribution.xml";
+    }
+    
+    public Class<Contribution> getModelType() {
+        return Contribution.class;
+    }
+    
+    public Contribution read(URL contributionURL, URI uri, URL url) throws ContributionReadException {
+        InputStream urlStream = null;
+        try {
+            
+            // Create a stream reader
+            URLConnection connection = url.openConnection();
+            connection.setUseCaches(false);
+            urlStream = connection.getInputStream();
+            XMLStreamReader reader = inputFactory.createXMLStreamReader(url.toString(), urlStream);
+            reader.nextTag();
+            
+            // Read the contribution model
+            Contribution contribution = (Contribution)staxProcessor.read(reader);
+            if (contribution != null) {
+                contribution.setURI(uri.toString());
+            }
+
+            return contribution;
+            
+        } catch (XMLStreamException e) {
+            throw new ContributionReadException(e);
+        } catch (IOException e) {
+            throw new ContributionReadException(e);
+        } finally {
+            try {
+                if (urlStream != null) {
+                    urlStream.close();
+                    urlStream = null;
+                }
+            } catch (IOException ioe) {
+                //ignore
+            }
+        }
+    }
+    
+    public void resolve(Contribution contribution, ModelResolver resolver) throws ContributionResolveException {
+        staxProcessor.resolve(contribution, resolver);
+    }
+
+}
diff --git a/branches/sca-java-1.2.1/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionMetadataProcessor.java b/branches/sca-java-1.2.1/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionMetadataProcessor.java
new file mode 100644
index 0000000000..5a7ab9d226
--- /dev/null
+++ b/branches/sca-java-1.2.1/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionMetadataProcessor.java
@@ -0,0 +1,176 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.contribution.xml;
+
+import static javax.xml.stream.XMLStreamConstants.START_ELEMENT;
+
+import java.util.List;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamConstants;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.contribution.ContributionFactory;
+import org.apache.tuscany.sca.contribution.Export;
+import org.apache.tuscany.sca.contribution.Import;
+import org.apache.tuscany.sca.contribution.processor.BaseStAXArtifactProcessor;
+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;
+
+/**
+ * Processor for contribution metadata
+ * 
+ * @version $Rev$ $Date$
+ */
+public class ContributionMetadataProcessor extends BaseStAXArtifactProcessor implements StAXArtifactProcessor<Contribution> {
+    
+    private static final String SCA10_NS = "http://www.osoa.org/xmlns/sca/1.0";
+    
+    private static final QName CONTRIBUTION_QNAME = new QName(SCA10_NS, "contribution");
+    private static final QName DEPLOYABLE_QNAME = new QName(SCA10_NS, "deployable");
+    
+    private final AssemblyFactory assemblyFactory;
+    private final ContributionFactory contributionFactory;
+    
+    private final StAXArtifactProcessor<Object> extensionProcessor;
+
+    public ContributionMetadataProcessor(AssemblyFactory assemblyFactory, ContributionFactory contributionFactory, StAXArtifactProcessor<Object> extensionProcessor) {
+        this.assemblyFactory = assemblyFactory;
+        this.contributionFactory = contributionFactory;
+        this.extensionProcessor = extensionProcessor;
+    }
+    
+    
+    public QName getArtifactType() {
+        return CONTRIBUTION_QNAME;
+    }
+
+    public Class<Contribution> getModelType() {
+        return Contribution.class;
+    }
+
+    public Contribution read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
+        Contribution contribution = null;
+        QName name = null;
+        
+        while (reader.hasNext()) {
+            int event = reader.getEventType();
+            switch (event) {
+                case START_ELEMENT:
+                    name = reader.getName();
+                    
+                    if (CONTRIBUTION_QNAME.equals(name)) {
+
+                        // Read <contribution>
+                        contribution = this.contributionFactory.createContribution();
+                        contribution.setUnresolved(true);
+                        
+                    } else if (DEPLOYABLE_QNAME.equals(name)) {
+                        
+                        
+                        // Read <deployable>
+                        QName compositeName = getQName(reader, "composite");
+                        if (compositeName == null) {
+                            throw new ContributionReadException("Attribute 'composite' is missing");
+                        }
+
+                        if (contribution != null) {
+                            Composite composite = assemblyFactory.createComposite();
+                            composite.setName(compositeName);
+                            composite.setUnresolved(true);
+                            contribution.getDeployables().add(composite);
+                            
+                        }
+                    } else{
+
+                        // Read an extension element
+                        Object extension = extensionProcessor.read(reader);
+                        if (extension != null && contribution != null) {
+                            if (extension instanceof Import) {
+                                contribution.getImports().add((Import)extension);
+                            } else if (extension instanceof Export) {
+                                contribution.getExports().add((Export)extension);
+                            }
+                        }
+                    }
+                    break;
+                    
+                case XMLStreamConstants.END_ELEMENT:
+                    if (CONTRIBUTION_QNAME.equals(reader.getName())) {
+                        return contribution;
+                    }
+                    break;        
+            }
+            
+            //Read the next element
+            if (reader.hasNext()) {
+                reader.next();
+            }
+        }
+        
+        return contribution;
+    }
+
+    public void write(Contribution contribution, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException {
+        
+        // Write <contribution>
+        writeStartDocument(writer, CONTRIBUTION_QNAME.getNamespaceURI(), CONTRIBUTION_QNAME.getLocalPart());
+
+        // Write <import>
+        for (Import imp: contribution.getImports()) {
+            extensionProcessor.write(imp, writer);
+        }
+        
+        // Write <export>
+        for (Export export: contribution.getExports()) {
+            extensionProcessor.write(export, writer);
+        }
+    
+        // Write <deployable>
+        for (Composite deployable: contribution.getDeployables()) {
+            writeStart(writer, DEPLOYABLE_QNAME.getNamespaceURI(), DEPLOYABLE_QNAME.getLocalPart(),
+                       new XAttr("composite", deployable.getName()));
+            writeEnd(writer);
+        }
+        
+        writeEndDocument(writer);
+    }
+
+    public void resolve(Contribution model, ModelResolver resolver) throws ContributionResolveException {
+        model.setUnresolved(false);
+        
+        // Resolve deployable composites
+        List<Composite> deployables = model.getDeployables();
+        for (int i = 0, n = deployables.size(); i < n; i++) {
+            Composite deployable = deployables.get(i);
+            Composite resolved = (Composite)resolver.resolveModel(Composite.class, deployable);
+            if (resolved != deployable) {
+                deployables.set(i, resolved);
+            }
+        }
+    }
+}
diff --git a/branches/sca-java-1.2.1/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionModelResolver.java b/branches/sca-java-1.2.1/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionModelResolver.java
new file mode 100644
index 0000000000..ac98ace66e
--- /dev/null
+++ b/branches/sca-java-1.2.1/modules/contribution-xml/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionModelResolver.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.contribution.xml;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+
+/**
+ * A Model Resolver for Contribution models.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ContributionModelResolver implements ModelResolver {
+
+    private Map<String, Contribution> map = new HashMap<String, Contribution>();
+    
+    public ContributionModelResolver(Contribution contribution, ModelFactoryExtensionPoint modelFactories) {
+    }
+
+    public void addModel(Object resolved) {
+        Contribution contribution = (Contribution)resolved;
+        map.put(contribution.getURI(), contribution);
+    }
+    
+    public Object removeModel(Object resolved) {
+        return map.remove(((Contribution)resolved).getURI());
+    }
+    
+    public <T> T resolveModel(Class<T> modelClass, T unresolved) {
+        
+        // Lookup a contribution for the given URI
+        String uri = ((Contribution)unresolved).getURI();
+        Contribution resolved = (Contribution) map.get(uri);
+        if (resolved != null) {
+            return modelClass.cast(resolved);
+        }
+        return (T)unresolved;
+    }
+    
+}
diff --git a/branches/sca-java-1.2.1/modules/contribution-xml/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.resolver.ModelResolver b/branches/sca-java-1.2.1/modules/contribution-xml/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.resolver.ModelResolver
new file mode 100644
index 0000000000..68030bf6e6
--- /dev/null
+++ b/branches/sca-java-1.2.1/modules/contribution-xml/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.resolver.ModelResolver
@@ -0,0 +1,18 @@
+# Licensed to the Apache Software Foundation (ASF) under one

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

+# distributed with this work for additional information

+# regarding copyright ownership.  The ASF licenses this file

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

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

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

+# 

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

+# 

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

+# software distributed under the License is distributed on an

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

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

+# specific language governing permissions and limitations

+# under the License. 

+

+org.apache.tuscany.sca.contribution.xml.ContributionModelResolver;model=org.apache.tuscany.sca.contribution.Contribution

diff --git a/branches/sca-java-1.2.1/modules/contribution-xml/src/test/java/org/apache/tuscany/sca/contribution/xml/ContributionMetadataProcessorTestCase.java b/branches/sca-java-1.2.1/modules/contribution-xml/src/test/java/org/apache/tuscany/sca/contribution/xml/ContributionMetadataProcessorTestCase.java
new file mode 100644
index 0000000000..59188ec3a3
--- /dev/null
+++ b/branches/sca-java-1.2.1/modules/contribution-xml/src/test/java/org/apache/tuscany/sca/contribution/xml/ContributionMetadataProcessorTestCase.java
@@ -0,0 +1,139 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.contribution.xml;
+
+import java.io.StringReader;
+import java.io.StringWriter;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLOutputFactory;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import junit.framework.TestCase;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.DefaultAssemblyFactory;
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.contribution.ContributionFactory;
+import org.apache.tuscany.sca.contribution.DefaultContributionFactory;
+import org.apache.tuscany.sca.contribution.service.ContributionReadException;
+
+/**
+ * Test the contribution metadata processor.
+ * 
+ * @version $Rev$ $Date$
+ */
+
+public class ContributionMetadataProcessorTestCase extends TestCase {
+
+    private static final String VALID_XML =
+        "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" 
+            + "<contribution xmlns=\"http://www.osoa.org/xmlns/sca/1.0\" xmlns:ns=\"http://ns\">"
+            + "<deployable composite=\"ns:Composite1\"/>"
+            + "<deployable composite=\"ns:Composite2\"/>"
+            + "</contribution>";
+
+    private static final String INVALID_XML =
+        "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" 
+            + "<contribution xmlns=\"http://www.osoa.org/xmlns/sca/1.0\" xmlns:ns=\"http://ns\">"
+            + "<deployable composite=\"ns:Composite1\"/>"
+            + "<deployable/>"
+            + "</contribution>";
+    
+    private XMLInputFactory xmlInputFactory;
+    private XMLOutputFactory xmlOutputFactory;
+
+    @Override
+    protected void setUp() throws Exception {
+        xmlInputFactory = XMLInputFactory.newInstance();
+        xmlOutputFactory = XMLOutputFactory.newInstance();
+        xmlOutputFactory.setProperty(XMLOutputFactory.IS_REPAIRING_NAMESPACES, true);
+    }
+
+    public void testRead() throws Exception {
+        XMLStreamReader reader = xmlInputFactory.createXMLStreamReader(new StringReader(VALID_XML));
+
+        AssemblyFactory assemblyFactory = new DefaultAssemblyFactory();
+        ContributionFactory contributionFactory = new DefaultContributionFactory();
+        ContributionMetadataProcessor processor = 
+            new ContributionMetadataProcessor(assemblyFactory, contributionFactory, null);
+        Contribution contribution = contributionFactory.createContribution();
+        contribution.setModelResolver(new TestModelResolver(contribution, null));
+        contribution = processor.read(reader);
+        assertNotNull(contribution);
+        assertEquals(2, contribution.getDeployables().size());
+  }
+
+    public void testReadInvalid() throws Exception {
+        XMLStreamReader reader = xmlInputFactory.createXMLStreamReader(new StringReader(INVALID_XML));
+        AssemblyFactory assemblyFactory = new DefaultAssemblyFactory();
+        ContributionFactory contributionFactory = new DefaultContributionFactory();
+        ContributionMetadataProcessor processor = 
+            new ContributionMetadataProcessor(assemblyFactory, contributionFactory, null);
+        Contribution contribution = contributionFactory.createContribution();
+        contribution.setModelResolver(new TestModelResolver(contribution, null));
+        try {
+            processor.read(reader);
+            fail("InvalidException should have been thrown");
+        } catch (ContributionReadException e) {
+            assertTrue(true);
+        }
+    }    
+
+    public void testWrite() throws Exception {
+        XMLStreamReader reader = xmlInputFactory.createXMLStreamReader(new StringReader(VALID_XML));
+
+        //read the original contribution metadata file
+        AssemblyFactory assemblyFactory = new DefaultAssemblyFactory();
+        ContributionFactory contributionFactory = new DefaultContributionFactory();
+        ContributionMetadataProcessor processor = 
+            new ContributionMetadataProcessor(assemblyFactory, contributionFactory, null);
+        Contribution contribution = contributionFactory.createContribution();
+        contribution.setModelResolver(new TestModelResolver(contribution, null));
+        contribution = processor.read(reader);
+
+        validateContribution(contribution);
+        
+        //write the contribution metadata contents
+        StringWriter stringWriter = new StringWriter();
+        XMLStreamWriter writer = xmlOutputFactory.createXMLStreamWriter(stringWriter);
+        processor.write(contribution, writer);
+        stringWriter.close();
+
+        reader = xmlInputFactory.createXMLStreamReader(new StringReader(stringWriter.toString()));
+        contribution = processor.read(reader);
+        
+        validateContribution(contribution);
+  }
+    
+  public void validateContribution(Contribution contribution) {
+	  QName deployable;
+	  
+	  assertNotNull(contribution);
+	  assertEquals(2, contribution.getDeployables().size());
+	  deployable = new QName("http://ns", "Composite1");
+	  assertEquals(deployable, contribution.getDeployables().get(0).getName());
+	  deployable = new QName("http://ns", "Composite2");
+	  assertEquals(deployable, contribution.getDeployables().get(1).getName());	  
+  }
+    
+}
diff --git a/branches/sca-java-1.2.1/modules/contribution-xml/src/test/java/org/apache/tuscany/sca/contribution/xml/TestModelResolver.java b/branches/sca-java-1.2.1/modules/contribution-xml/src/test/java/org/apache/tuscany/sca/contribution/xml/TestModelResolver.java
new file mode 100644
index 0000000000..6af6167b6c
--- /dev/null
+++ b/branches/sca-java-1.2.1/modules/contribution-xml/src/test/java/org/apache/tuscany/sca/contribution/xml/TestModelResolver.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.contribution.xml;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+
+/**
+ * A test implementation of a model resolver, based on a map.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class TestModelResolver implements ModelResolver {
+    
+    private Map<Object, Object> map = new HashMap<Object, Object>();
+    
+    public TestModelResolver(Contribution contribution, ModelFactoryExtensionPoint modelFactories) {
+    }
+    
+    public <T> T resolveModel(Class<T> modelClass, T unresolved) {
+        Object resolved = map.get(unresolved);
+        if (resolved != null) {
+            // Return the resolved object
+            return modelClass.cast(resolved);
+        } 
+        // Return the unresolved object
+        return unresolved;
+    }
+    
+    public void addModel(Object resolved) {
+        map.put(resolved, resolved);
+    }
+    
+    public Object removeModel(Object resolved) {
+        return map.remove(resolved);
+    }
+    
+}