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diff --git a/sca-java-1.x/branches/sca-java-1.6.2/samples/implementation-pojo-extension/src/main/java/pojo/impl/POJOImplementationProcessor.java b/sca-java-1.x/branches/sca-java-1.6.2/samples/implementation-pojo-extension/src/main/java/pojo/impl/POJOImplementationProcessor.java
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+/*
+ * 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 pojo.impl;
+
+import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
+
+import javax.xml.namespace.QName;
+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.ComponentType;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.assembly.xml.PolicyAttachPointProcessor;
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.resolver.ClassReference;
+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.interfacedef.InvalidInterfaceException;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceContract;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.policy.PolicyFactory;
+
+import pojo.POJOImplementation;
+import pojo.POJOImplementationFactory;
+
+/**
+ * Implements a STAX based artifact processor for POJO implementations.
+ * 
+ * The artifact processor is responsible for processing <implementation.pojo>
+ * elements in SCA assembly XML composite files and populating the POJO
+ * implementation model, resolving its references to other artifacts in the SCA
+ * contribution, and optionally write the model back to SCA assembly XML. 
+ */
+public class POJOImplementationProcessor implements StAXArtifactProcessor<POJOImplementation> {
+    private static final QName IMPLEMENTATION_POJO = new QName("http://pojo", "implementation.pojo");
+    
+    private AssemblyFactory assemblyFactory;
+    private JavaInterfaceFactory javaFactory;
+    private POJOImplementationFactory pojoImplementationFactory;
+    private PolicyFactory policyFactory;
+    private PolicyAttachPointProcessor policyProcessor;
+    
+    public POJOImplementationProcessor(ModelFactoryExtensionPoint modelFactories, Monitor monitor) {
+        
+        // Get the assembly and Java interface factories as we'll need them to
+        // create model objects 
+        assemblyFactory = modelFactories.getFactory(AssemblyFactory.class);
+        javaFactory = modelFactories.getFactory(JavaInterfaceFactory.class);
+        policyFactory = modelFactories.getFactory(PolicyFactory.class);
+        pojoImplementationFactory = modelFactories.getFactory(POJOImplementationFactory.class);
+        policyProcessor = new PolicyAttachPointProcessor(policyFactory);
+    }
+
+    public QName getArtifactType() {
+        // Returns the qname of the XML element processed by this processor
+        return IMPLEMENTATION_POJO;
+    }
+
+    public Class<POJOImplementation> getModelType() {
+        // Returns the type of model processed by this processor
+        return POJOImplementation.class;
+    }
+
+    public POJOImplementation read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
+    
+        // Read an <implementation.pojo> element
+        POJOImplementation implementation = pojoImplementationFactory.createPOJOImplementation();
+        
+        // Read policies
+        policyProcessor.readPolicies(implementation, reader);
+        
+        // Read the POJO class attribute.
+        String className = reader.getAttributeValue(null, "class");
+        implementation.setPOJOName(className);
+        
+        // Mark the POJO model unresolved to track the fact that it's not
+        // completely initialized, its class is not loaded yet and services
+        // and references not initialized either
+        implementation.setUnresolved(true);
+        
+        // Skip to end element
+        while (reader.hasNext()) {
+            if (reader.next() == END_ELEMENT && IMPLEMENTATION_POJO.equals(reader.getName())) {
+                break;
+            }
+        }
+        
+        return implementation;
+    }
+
+    public void resolve(POJOImplementation implementation, ModelResolver resolver) throws ContributionResolveException {
+        
+        // Resolve the POJO implementation
+        
+        // First resolve its class
+        ClassReference classReference = new ClassReference(implementation.getPOJOName());
+        classReference = resolver.resolveModel(ClassReference.class, classReference);
+        Class<?> pojoClass = classReference.getJavaClass();
+        if (pojoClass == null) {
+            throw new ContributionResolveException("Class could not be resolved: " + implementation.getPOJOName());
+        }
+        implementation.setPOJOClass(pojoClass);
+        
+        // Check to see if we have a .componentType file describing the POJO class
+        ComponentType componentType = assemblyFactory.createComponentType();
+        componentType.setUnresolved(true);
+        componentType.setURI(implementation.getURI() + ".componentType");
+        componentType = resolver.resolveModel(ComponentType.class, componentType);
+        if (!componentType.isUnresolved()) {
+            
+            // We have a component type description, merge it into the POJO model
+            implementation.getServices().addAll(componentType.getServices());
+            implementation.getReferences().addAll(componentType.getReferences());
+            implementation.getProperties().addAll(componentType.getProperties());
+            
+        } else {
+            
+            // We have no component type description, simply introspect the POJO and
+            // create a single Service for it
+            Service service = assemblyFactory.createService();
+            service.setName(pojoClass.getSimpleName());
+            JavaInterface javaInterface;
+            try {
+                javaInterface = javaFactory.createJavaInterface(pojoClass);
+            } catch (InvalidInterfaceException e) {
+                throw new ContributionResolveException(e);
+            }
+            JavaInterfaceContract interfaceContract = javaFactory.createJavaInterfaceContract();
+            interfaceContract.setInterface(javaInterface);
+            service.setInterfaceContract(interfaceContract);
+            implementation.getServices().add(service);
+        }
+        
+        // Mark the implementation resolved now
+        implementation.setUnresolved(false);
+    }
+
+    public void write(POJOImplementation implementation, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException {
+        
+        // Write <implementation.pojo> element
+        writer.writeStartElement(IMPLEMENTATION_POJO.getNamespaceURI(), IMPLEMENTATION_POJO.getLocalPart());
+        policyProcessor.writePolicyAttributes(implementation, writer);
+        
+        if (implementation.getPOJOName() != null) {
+            writer.writeAttribute("class", implementation.getPOJOName());
+        }
+        
+        writer.writeEndElement();
+    }
+}