Branch for 1.4

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@722428 13f79535-47bb-0310-9956-ffa450edef68

20 files changed, 2158 insertions, 0 deletions

diff --git a/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/BindingActivator.java b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/BindingActivator.java
new file mode 100644
index 0000000000..e117e952c7
--- /dev/null
+++ b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/BindingActivator.java
@@ -0,0 +1,69 @@
+/*
+ * 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.extension.helper;
+
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
+import org.apache.tuscany.sca.runtime.RuntimeComponentService;
+
+/**
+ * A BindingActivator adds an SCA binding type to the Tuscany runtime.
+ * 
+ * The SCDL XML used for the binding is derived from the name of the
+ * class returned from the getBindingClass method - the package name and
+ * any trailing "Binding" string is removed, leading upper case characters
+ * are converted to lowercase, and the suffix "binding." is added.
+ * For example if getBindingClass returns a class named "mypkg.FooBinding"
+ * then the SCDL for the binding will be <binding.foo>.
+ * 
+ * Attributes of the <binding.foo> SCDL are based on the getters/setters of
+ * the binding class. So if FooBinding had getBar/setBar then there
+ * would be an attribute name 'bar', for example, <binding.foo bar="xxx">. 
+ * 
+ * BindingActivator implementations may use constructor arguments to have 
+ * Tuscany ExtensionPointRegistry objects passed in on their constructor.
+ * For example:
+ * 
+ *    public class MyBindingActivator implements BindingActivator {
+ *       ServletHost servletHost;
+ *       public MyBindingActivator(ServletHost servletHost) {
+ *          this.servletHost = servletHost;
+ *       }
+ *       ...
+ *    }
+ *    
+ * BindingActivator implementations are discovered by the Tuscany runtime
+ * using the J2SE jar file extensions for service provider discovery. All
+ * that means is packaging the new binding type in a jar which contains a  
+ * file META-INF/services/org.apache.tuscany.sca.extension.helper.BindingActivator and
+ * that file lists the BindingActivator implementation class name.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface BindingActivator<B> {
+
+    Class<B> getBindingClass();
+
+    InvokerFactory createInvokerFactory(RuntimeComponent rc, RuntimeComponentReference rcr, Binding b, B pojoBinding);
+    
+    ComponentLifecycle createService(RuntimeComponent rc, RuntimeComponentService rcs, Binding b, B pojoBinding);
+    
+}
diff --git a/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/ComponentLifecycle.java b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/ComponentLifecycle.java
new file mode 100644
index 0000000000..92b6e4191f
--- /dev/null
+++ b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/ComponentLifecycle.java
@@ -0,0 +1,32 @@
+/*
+ * 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.extension.helper;
+
+/**
+ * Interface that defines the Component Lifecycle methods.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface ComponentLifecycle {
+    
+    void start();
+    void stop();
+
+}
diff --git a/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/ImplementationActivator.java b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/ImplementationActivator.java
new file mode 100644
index 0000000000..7d2a9c3d2d
--- /dev/null
+++ b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/ImplementationActivator.java
@@ -0,0 +1,64 @@
+/*
+ * 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.extension.helper;
+
+import org.apache.tuscany.sca.assembly.ComponentType;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+
+/**
+ * An ImplementationActivator adds an SCA implementation type to the Tuscany runtime.
+ * 
+ * The SCDL XML used for the implementation is derived from the name of the
+ * class returned from the getImplementationClass method - the package name and
+ * any trailing "Implementation" string is removed, leading upper case characters
+ * are converted to lowercase, and the suffix "implementation." is added. For 
+ * example if getImplementationClass returns a class named "mypkg.FooImplementation"
+ * then the SCDL for the implementation will be <implementation.foo>.
+ * 
+ * Attributes of the <implementation.foo> SCDL are based on the getters/setters of
+ * the Implementation class. So if FooImplementation had getBar/setBar then there
+ * would be an attribute name 'bar', for example, <implementation.foo bar="xxx">. 
+ * 
+ * BindingActivator implementations may use constructor arguments to have 
+ * Tuscany ExtensionPointRegistry objects passed in on their constructor.
+ * For example:
+ * 
+ *    public class MyImplementationActivator implements ImplementationActivator {
+ *       ServletHost servletHost;
+ *       public MyImplementationActivator(ServletHost servletHost) {
+ *          this.servletHost = servletHost;
+ *       }
+ *       ...
+ *    }
+ *    
+ * ImplementationActivator implementations are discovered by the Tuscany runtime
+ * using the J2SE jar file extensions for service provider discovery. All
+ * that means is packaging the new binding type in a jar which contains a  
+ * file META-INF/services/org.apache.tuscany.sca.extension.helper.ImplementationActivator and
+ * that file lists the ImplementationActivator implementation class name.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface ImplementationActivator<T> {
+
+    Class<T> getImplementationClass();
+
+    InvokerFactory createInvokerFactory(RuntimeComponent rc, ComponentType ct, T implementation);
+}
diff --git a/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/InvokerFactory.java b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/InvokerFactory.java
new file mode 100644
index 0000000000..c51a7267cc
--- /dev/null
+++ b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/InvokerFactory.java
@@ -0,0 +1,34 @@
+/*
+ * 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.extension.helper;
+
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.Invoker;
+
+/**
+ * Interface that defines the methods for an Invoker Factory.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface InvokerFactory {
+
+    Invoker createInvoker(Operation operation);
+
+}
diff --git a/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/BindingSCDLProcessor.java b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/BindingSCDLProcessor.java
new file mode 100644
index 0000000000..8a83f630e9
--- /dev/null
+++ b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/BindingSCDLProcessor.java
@@ -0,0 +1,194 @@
+/*
+ * 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.extension.helper.impl;
+
+import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
+
+import java.lang.reflect.Method;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
+import javax.xml.namespace.NamespaceContext;
+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.Binding;
+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.extension.helper.utils.AbstractBinding;
+
+/**
+ * An SCDL ArtifactProcessor which uses the Binding class getters/setters
+ * to define the SCDL attributes.
+ * 
+ * TODO: merge this with SCDLProcessor
+ *
+ * @version $Rev$ $Date$
+ */
+public class BindingSCDLProcessor implements StAXArtifactProcessor {
+
+    protected QName scdlQName;
+    protected Class<Binding> bindingClass;
+
+    protected Map<String, Method> attributeSetters;
+    protected Method elementTextSetter;
+
+    public BindingSCDLProcessor(QName scdlQName, Class<Binding> implementationClass) {
+        this.scdlQName = scdlQName;
+        this.bindingClass = implementationClass;
+        initAttributes();
+    }
+
+    protected void initAttributes() {
+        attributeSetters = new HashMap<String, Method>();
+        Set<Method> methods = new HashSet<Method>(Arrays.asList(bindingClass.getMethods()));
+        methods.removeAll(Arrays.asList(AbstractBinding.class.getMethods()));
+        for (Method m : methods) {
+            if ("setElementText".equals(m.getName())) {
+                elementTextSetter = m;
+            } else if ((m.getName().startsWith("set"))) {
+                attributeSetters.put(getFieldName(m), m);
+            }
+        }
+    }
+
+    /**
+     * Remove get/set from method name, set 1st char to lowercase and
+     * remove any trailing underscore character
+     */
+    protected String getFieldName(Method m) {
+        StringBuilder sb = new StringBuilder(m.getName().substring(3));
+        sb.setCharAt(0, Character.toLowerCase(sb.charAt(0)));
+        String name = sb.toString();
+        if (name.endsWith("_")) {
+            name = name.substring(0,name.length()-1);
+        }
+        return name;
+    }
+
+    public QName getArtifactType() {
+        return scdlQName;
+    }
+
+    public Class getModelType() {
+        //FIXME Having two different bindings, PojoBinding wrapping
+        // the real binding is pretty confusing, looks like if you don't return
+        // PojoBinding here, the write and resolve methods will never be
+        // called, returning PojoBinding.class seems to fix that issue without
+        // breaking anything else
+        return PojoBinding.class;
+    }
+
+    public Binding read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
+        Object impl;
+        try {
+            impl = bindingClass.newInstance();
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        for (String attribute : attributeSetters.keySet()) {
+            String value = reader.getAttributeValue(null, attribute);
+            if (value != null && value.length() > 0) {
+                try {
+                    attributeSetters.get(attribute).invoke(impl, new Object[] {value});
+                } catch (Exception e) {
+                    throw new RuntimeException(e);
+                }
+            }
+        }
+
+        //FIXME: none of the attributes of Binding seem to be working with PojoBinding
+        // For now at least read the binding URI
+        String uri = reader.getAttributeValue(null, "uri");
+        
+        if (elementTextSetter != null) {
+            try {
+                String value = reader.getElementText();
+                if (value != null && value.length() > 0) {
+                    elementTextSetter.invoke(impl, value);
+                }
+            } catch (Exception e) {
+                throw new RuntimeException(e);
+            }
+        }
+
+        while (!(reader.getEventType() == END_ELEMENT && scdlQName.equals(reader.getName())) && reader.hasNext()) {
+            reader.next();
+        }
+
+        if (!(impl instanceof Binding)) {
+            impl = new PojoBinding(impl);
+            
+            //FIXME: none of the attributes of Binding seem to be working with PojoBinding
+            // For now at least read the binding URI
+            if (uri != null) {
+                ((PojoBinding)impl).setURI(uri);
+            }
+        }
+        return (Binding)impl;
+    }
+
+    public void resolve(Object model, ModelResolver resolver) throws ContributionResolveException {
+    }
+
+    public void write(Object model, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException {
+
+        //FIXME: none of the attributes of Binding seem to be working with PojoBinding
+        // For now at least write the binding URI
+        
+        // Find a namespace prefix and write the element 
+        String prefix = writer.getPrefix(scdlQName.getNamespaceURI());
+        if (prefix == null) {
+            NamespaceContext nsc = writer.getNamespaceContext();
+            for (int i=1; ; i++) {
+                prefix = "ns" + i;
+                if (nsc.getNamespaceURI(prefix) == null) {
+                    break;
+                }
+            }
+            writer.setPrefix(prefix, scdlQName.getNamespaceURI());
+        }
+        writer.writeStartElement(scdlQName.getNamespaceURI(), scdlQName.getLocalPart());
+
+        // Write the binding URI attribute
+        String uri;
+        try {
+            uri = (String)model.getClass().getMethod("getURI").invoke(model);
+        } catch (Exception e) {
+            uri = null;
+        }
+        if (uri != null) {
+            writer.writeAttribute("uri", uri);
+        }
+        
+        writer.writeEndElement();
+
+    }
+
+}
diff --git a/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/BindingsActivator.java b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/BindingsActivator.java
new file mode 100644
index 0000000000..bca1dac0ed
--- /dev/null
+++ b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/BindingsActivator.java
@@ -0,0 +1,262 @@
+/*
+ * 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.extension.helper.impl;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.xml.Constants;
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessorExtensionPoint;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.ModuleActivator;
+import org.apache.tuscany.sca.extension.helper.BindingActivator;
+import org.apache.tuscany.sca.extension.helper.ComponentLifecycle;
+import org.apache.tuscany.sca.extension.helper.InvokerFactory;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.provider.BindingProviderFactory;
+import org.apache.tuscany.sca.provider.ProviderFactory;
+import org.apache.tuscany.sca.provider.ProviderFactoryExtensionPoint;
+import org.apache.tuscany.sca.provider.ReferenceBindingProvider;
+import org.apache.tuscany.sca.provider.ServiceBindingProvider;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
+import org.apache.tuscany.sca.runtime.RuntimeComponentService;
+
+/**
+ *
+ * @version $Rev$ $Date$
+ */
+public class BindingsActivator implements ModuleActivator {
+
+    protected List<BindingActivator> bindingActivators;
+    protected AssemblyFactory assemblyFactory;
+    protected Map<Class, BindingActivator> bindingActivatorMap = new HashMap<Class, BindingActivator>();
+
+    public void start(ExtensionPointRegistry registry) {
+
+        ModelFactoryExtensionPoint factories = registry.getExtensionPoint(ModelFactoryExtensionPoint.class);
+        this.assemblyFactory = factories.getFactory(AssemblyFactory.class);
+
+
+        this.bindingActivators =
+            DiscoveryUtils.discoverActivators(BindingActivator.class, registry);
+
+        StAXArtifactProcessorExtensionPoint staxProcessors =
+            registry.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class);
+
+        ProviderFactoryExtensionPoint providerFactories =
+            registry.getExtensionPoint(ProviderFactoryExtensionPoint.class);
+
+        for (final BindingActivator bindingActivator : bindingActivators) {
+            Class bindingClass = bindingActivator.getBindingClass();
+            bindingActivatorMap.put(bindingClass, bindingActivator);
+            QName scdlQName = getBindingQName(bindingClass);
+            staxProcessors.addArtifactProcessor(new BindingSCDLProcessor(scdlQName, bindingClass));
+
+            // Check if the binding extends from Binding interface
+            if (Binding.class.isAssignableFrom(bindingClass)) {
+                // Add provider factory against the binding class
+                providerFactories.addProviderFactory(new DelegatingBindingProviderFactory(bindingClass));
+            }
+
+        }
+
+        // Add a generic provider factory against PojoBinding.class
+        providerFactories.addProviderFactory(new DelegatingBindingProviderFactory(PojoBinding.class));
+    }
+
+    public void stop(ExtensionPointRegistry registry) {
+        StAXArtifactProcessorExtensionPoint staxProcessors =
+            registry.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class);
+        ProviderFactoryExtensionPoint providerFactories =
+            registry.getExtensionPoint(ProviderFactoryExtensionPoint.class);
+
+        for (final BindingActivator bindingActivator : bindingActivators) {
+
+            // Remove the binding SCDL processor from the runtime
+            if (staxProcessors != null) {
+                StAXArtifactProcessor processor =
+                    staxProcessors.getProcessor(getBindingQName(bindingActivator.getBindingClass()));
+                if (processor != null) {
+                    staxProcessors.removeArtifactProcessor(processor);
+                }
+            }
+
+            // Remove the ProviderFactory from the runtime
+            if (providerFactories != null && bindingActivator.getBindingClass() != null) {
+                ProviderFactory factory = providerFactories.getProviderFactory(bindingActivator.getBindingClass());
+                if (factory != null) {
+                    providerFactories.removeProviderFactory(factory);
+                }
+            }
+        }
+        if (providerFactories != null) {
+            ProviderFactory factory = providerFactories.getProviderFactory(PojoBinding.class);
+            if (factory != null) {
+                providerFactories.removeProviderFactory(factory);
+            }
+        }
+    }
+
+    protected QName getBindingQName(Class bindingClass) {
+        String localName = bindingClass.getName();
+        if (localName.lastIndexOf('.') > -1) {
+            localName = localName.substring(localName.lastIndexOf('.') + 1);
+        }
+        if (localName.endsWith("Binding")) {
+            localName = localName.substring(0, localName.length() - 7);
+        }
+        StringBuilder sb = new StringBuilder(localName);
+        for (int i = 0; i < sb.length(); i++) {
+            if (Character.isUpperCase(sb.charAt(i))) {
+                sb.setCharAt(i, Character.toLowerCase(sb.charAt(i)));
+            } else {
+                break;
+            }
+        }
+        return new QName(Constants.SCA10_TUSCANY_NS, "binding." + sb.toString());
+    }
+
+    private final class DelegatingBindingProviderFactory implements BindingProviderFactory {
+        private Class modelType;
+
+        public DelegatingBindingProviderFactory(Class modelType) {
+            super();
+            this.modelType = modelType;
+        }
+
+        public ReferenceBindingProvider createReferenceBindingProvider(final RuntimeComponent rc,
+                                                                       final RuntimeComponentReference rcr,
+                                                                       final Binding b) {
+            final Object realBinding;
+            if (b instanceof PojoBinding) {
+                realBinding = ((PojoBinding)b).getUserBinding();
+            } else {
+                realBinding = b;
+            }
+            final BindingActivator bindingActivator = bindingActivatorMap.get(realBinding.getClass());
+            return new ReferenceBindingProvider() {
+                List<InvokerProxy> invokers = new ArrayList<InvokerProxy>();
+                private InvokerFactory factory;
+
+                public Invoker createInvoker(Operation operation) {
+                    InvokerProxy invoker = new InvokerProxy(factory, operation);
+                    invokers.add(invoker);
+                    return invoker;
+                }
+                
+                public boolean supportsOneWayInvocation() {
+                    return false;
+                }
+
+                public InterfaceContract getBindingInterfaceContract() {
+                    return null;
+                }
+
+                public void start() {
+                    if (b instanceof PojoBinding) {
+                        factory = bindingActivator.createInvokerFactory(rc, rcr, b, ((PojoBinding)b).getUserBinding());
+                    } else {
+                        factory = bindingActivator.createInvokerFactory(rc, rcr, b, b);
+                    }
+                    if ( (factory != null) &&  (factory instanceof ComponentLifecycle)) {
+                        ((ComponentLifecycle)factory).start();
+                    }
+//                    for (InvokerProxy invoker : invokers) {
+//                        invoker.start(factory);
+//                    }
+                }
+
+                public void stop() {
+                    if (factory instanceof ComponentLifecycle) {
+                        ((ComponentLifecycle)factory).stop();
+                    }
+                }
+            };
+        }
+
+        public ServiceBindingProvider createServiceBindingProvider(final RuntimeComponent rc,
+                                                                   final RuntimeComponentService rcs,
+                                                                   final Binding b) {
+            final Object realBinding;
+            if (b instanceof PojoBinding) {
+                realBinding = ((PojoBinding)b).getUserBinding();
+            } else {
+                realBinding = b;
+            }
+            final BindingActivator bindingActivator = bindingActivatorMap.get(realBinding.getClass());
+            return new ServiceBindingProvider() {
+                ComponentLifecycle listener = bindingActivator.createService(rc, rcs, b, realBinding);
+
+                public InterfaceContract getBindingInterfaceContract() {
+                    return null;
+                }
+                
+                public boolean supportsOneWayInvocation() {
+                    return false;
+                }
+
+                public void start() {
+                    listener.start();
+                }
+
+                public void stop() {
+                    listener.stop();
+                }
+            };
+        }
+
+        public Class getModelType() {
+            return modelType;
+        }
+    }
+
+}
+
+class InvokerProxy implements Invoker {
+    InvokerFactory factory;
+    Invoker invoker;
+    Operation op;
+
+    InvokerProxy(InvokerFactory factory, Operation op) {
+        this.factory = factory;
+        this.op = op;
+        this.invoker = factory.createInvoker(op);
+    }
+
+    public Message invoke(Message arg0) {
+        return invoker.invoke(arg0);
+    }
+
+//    public void start(InvokerFactory factory) {
+//        invoker = factory.createInvoker(op);
+//    }
+}
diff --git a/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/DiscoveryUtils.java b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/DiscoveryUtils.java
new file mode 100644
index 0000000000..720d409a44
--- /dev/null
+++ b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/DiscoveryUtils.java
@@ -0,0 +1,113 @@
+/*
+ * 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.extension.helper.impl;
+
+import java.io.IOException;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.extensibility.ServiceDeclaration;
+import org.apache.tuscany.sca.extensibility.ServiceDiscovery;
+
+/**
+ * Discovers Activators in the classpath using the J2SE
+ * jar file extensions for Service Provider discovery
+ *
+ * @version $Rev$ $Date$
+ */
+public class DiscoveryUtils {
+
+    @SuppressWarnings("unchecked")
+    public static <T> List<T> discoverActivators(Class<T> activatorClass, ExtensionPointRegistry registry) {
+        List<T> activators;
+        try {
+            Set<ServiceDeclaration> activatorClasses =
+                ServiceDiscovery.getInstance().getServiceDeclarations(activatorClass);
+            activators = new ArrayList<T>();
+            for (ServiceDeclaration declaration : activatorClasses) {
+                try {
+                    Class<T> c = (Class<T>)declaration.loadClass();
+                    activators.add(c.cast(instantiateActivator(c, registry)));
+                } catch (Throwable e) {
+                    e.printStackTrace(); // TODO: log
+                }
+            }
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+        return activators;
+    }
+
+    static Object instantiateActivator(Class activator, ExtensionPointRegistry registry) {
+        Constructor[] cs = activator.getConstructors();
+        if (cs.length != 1) {
+            throw new RuntimeException("Activator must have only one constructors");
+        }
+
+        Class<?>[] paramTypes = cs[0].getParameterTypes();
+        Object[] extensions = new Object[paramTypes.length];
+
+        for (int i = 0; i < paramTypes.length; i++) {
+            if ("org.apache.tuscany.sca.host.http.ServletHost".equals(paramTypes[i].getName())) {
+                extensions[i] = getServletHost(registry);
+            } else {
+                extensions[i] = registry.getExtensionPoint(paramTypes[i]);
+            }
+        }
+
+        try {
+
+            return cs[0].newInstance(extensions);
+
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private static Object getServletHost(ExtensionPointRegistry registry) {
+        try {
+
+            Class<?> servletHostEPClass = Class.forName("org.apache.tuscany.sca.host.http.ServletHostExtensionPoint");
+            Object servletHostEP = registry.getExtensionPoint(servletHostEPClass);
+            Class<?> extensibleServletHost = Class.forName("org.apache.tuscany.sca.host.http.ExtensibleServletHost");
+            return extensibleServletHost.getConstructor(new Class[] {servletHostEPClass}).newInstance(servletHostEP);
+
+        } catch (ClassNotFoundException e) {
+            throw new RuntimeException(e);
+        } catch (IllegalArgumentException e) {
+            throw new RuntimeException(e);
+        } catch (SecurityException e) {
+            throw new RuntimeException(e);
+        } catch (InstantiationException e) {
+            throw new RuntimeException(e);
+        } catch (IllegalAccessException e) {
+            throw new RuntimeException(e);
+        } catch (InvocationTargetException e) {
+            throw new RuntimeException(e);
+        } catch (NoSuchMethodException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+}
diff --git a/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/ImplementationImplementationProvider.java b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/ImplementationImplementationProvider.java
new file mode 100644
index 0000000000..f7c65acb3d
--- /dev/null
+++ b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/ImplementationImplementationProvider.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.extension.helper.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.extension.helper.ImplementationActivator;
+import org.apache.tuscany.sca.extension.helper.InvokerFactory;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.provider.ImplementationProvider;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentService;
+
+/**
+ * The ImplementationProvider createInvoker method is called before the start method
+ * but the runtime isn't properly setup until the start method is called. This means
+ * that Invoker's can't initialize things like the services, references and  properties
+ * until start is called. This class tries to get around that by using an Invoker
+ * proxy that delays creating the real Invoker till start is called.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ImplementationImplementationProvider implements ImplementationProvider {
+
+    ImplementationActivator implementationActivator;
+    RuntimeComponent runtimeComponent;
+    Implementation impl;
+    Object userImpl;
+    InvokerFactory factory;
+
+    List<InvokerProxy> invokers = new ArrayList<InvokerProxy>();
+
+    public ImplementationImplementationProvider(ImplementationActivator implementationActivator,
+                                                RuntimeComponent rc,
+                                                Implementation impl,
+                                                Object userImpl) {
+        this.implementationActivator = implementationActivator;
+        this.runtimeComponent = rc;
+        this.impl = impl;
+        this.userImpl = userImpl;
+    }
+
+    public Invoker createInvoker(RuntimeComponentService arg0, final Operation op) {
+        InvokerProxy invoker = new InvokerProxy(op);
+        return invoker;
+    }
+    
+    public boolean supportsOneWayInvocation() {
+        return false;
+    }
+
+    public void start() {
+        factory = implementationActivator.createInvokerFactory(runtimeComponent, impl, userImpl);
+    }
+
+    public void stop() {
+    }
+
+    class InvokerProxy implements Invoker {
+        Invoker invoker;
+        Operation op;
+
+        InvokerProxy(Operation op) {
+            this.op = op;
+        }
+
+        public Message invoke(Message msg) {
+            init();
+            return invoker.invoke(msg);
+        }
+
+        public synchronized void init() {
+            if (invoker == null) {
+                invoker = factory.createInvoker(op);
+            }
+        }
+    }
+}
diff --git a/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/ImplementationsActivator.java b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/ImplementationsActivator.java
new file mode 100644
index 0000000000..d156d835ad
--- /dev/null
+++ b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/ImplementationsActivator.java
@@ -0,0 +1,138 @@
+/*
+ * 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.extension.helper.impl;
+
+import java.util.List;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.xml.Constants;
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessorExtensionPoint;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.ModuleActivator;
+import org.apache.tuscany.sca.databinding.DataBindingExtensionPoint;
+import org.apache.tuscany.sca.databinding.TransformerExtensionPoint;
+import org.apache.tuscany.sca.databinding.impl.MediatorImpl;
+import org.apache.tuscany.sca.extension.helper.ImplementationActivator;
+import org.apache.tuscany.sca.extension.helper.utils.DefaultPropertyValueObjectFactory;
+import org.apache.tuscany.sca.extension.helper.utils.PropertyValueObjectFactory;
+import org.apache.tuscany.sca.provider.ImplementationProvider;
+import org.apache.tuscany.sca.provider.ImplementationProviderFactory;
+import org.apache.tuscany.sca.provider.ProviderFactoryExtensionPoint;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+
+/**
+ * A Tuscany ModuleActivator which activates all the ImplementationActivators
+ *
+ * @version $Rev$ $Date$
+ */
+public class ImplementationsActivator implements ModuleActivator {
+
+    protected List<ImplementationActivator> implementationActivators;
+    
+    public void start(ExtensionPointRegistry registry) {
+
+        ModelFactoryExtensionPoint factories = registry.getExtensionPoint(ModelFactoryExtensionPoint.class);
+        AssemblyFactory assemblyFactory = factories.getFactory(AssemblyFactory.class);
+
+        DataBindingExtensionPoint dataBindings = registry.getExtensionPoint(DataBindingExtensionPoint.class);
+        TransformerExtensionPoint transformers = registry.getExtensionPoint(TransformerExtensionPoint.class); 
+        MediatorImpl mediator = new MediatorImpl(dataBindings, transformers);
+        
+        //FIXME Pass this factory differently as it's not an extension point
+        PropertyValueObjectFactory propertyFactory = new DefaultPropertyValueObjectFactory(mediator);
+        registry.addExtensionPoint(propertyFactory);
+
+        this.implementationActivators = DiscoveryUtils.discoverActivators(ImplementationActivator.class, registry);
+
+        StAXArtifactProcessorExtensionPoint staxProcessors = registry.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class);
+        ProviderFactoryExtensionPoint providerFactories = registry.getExtensionPoint(ProviderFactoryExtensionPoint.class);
+
+        for (final ImplementationActivator implementationActivator : implementationActivators) {
+
+            Class<Implementation> implClass = implementationActivator.getImplementationClass();
+            QName scdlQName = getSCDLQName(implClass);
+            staxProcessors.addArtifactProcessor(new SCDLProcessor(assemblyFactory, scdlQName, implClass, registry, factories));
+
+            if (implementationActivator.getImplementationClass() != null && providerFactories != null) {
+                addImplementationProvider(implementationActivator, providerFactories);
+            }
+        }
+    }
+
+    public void stop(ExtensionPointRegistry registry) {
+        StAXArtifactProcessorExtensionPoint staxProcessors = registry.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class);
+
+        for (final ImplementationActivator implementationActivator : implementationActivators) {
+            if (staxProcessors != null) {
+                StAXArtifactProcessor processor = staxProcessors.getProcessor(getSCDLQName(implementationActivator.getImplementationClass()));
+                if (processor != null) {
+                    staxProcessors.removeArtifactProcessor(processor);
+                }
+            }
+        }
+    }
+
+    private void addImplementationProvider(final ImplementationActivator implementationActivator, ProviderFactoryExtensionPoint providerFactories) {
+
+        providerFactories.addProviderFactory(new ImplementationProviderFactory() {
+            public ImplementationProvider createImplementationProvider(final RuntimeComponent rc, final Implementation impl) {
+                if (impl instanceof PojoImplementation) {
+                    return new ImplementationImplementationProvider(implementationActivator, rc, impl, ((PojoImplementation)impl).getUserImpl());
+                } else {
+                    return new ImplementationImplementationProvider(implementationActivator, rc, impl, impl);
+                }
+            }
+            public Class getModelType() {
+                Class c = implementationActivator.getImplementationClass();
+
+                if (Implementation.class.isAssignableFrom(c)) {
+                    return c;
+                } else {
+                    return PojoImplementation.class;
+                }
+            }
+        });
+    }
+
+    protected QName getSCDLQName(Class implementationClass) {
+        String localName = implementationClass.getName();
+        if (localName.lastIndexOf('.') > -1) {
+            localName = localName.substring(localName.lastIndexOf('.') + 1);
+        }
+        if (localName.endsWith("Implementation")) {
+            localName = localName.substring(0, localName.length() - 14);
+        }
+        StringBuilder sb = new StringBuilder(localName);
+        for (int i=0; i<sb.length(); i++) {
+            if (Character.isUpperCase(sb.charAt(i))) {
+                sb.setCharAt(i, Character.toLowerCase(sb.charAt(i)));
+            } else {
+                break;
+            }
+        }
+        return new QName(Constants.SCA10_TUSCANY_NS, "implementation." + sb.toString());
+    }
+
+}
diff --git a/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/PojoBinding.java b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/PojoBinding.java
new file mode 100644
index 0000000000..de9a5bfbb1
--- /dev/null
+++ b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/PojoBinding.java
@@ -0,0 +1,40 @@
+/*
+ * 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.extension.helper.impl;
+
+import org.apache.tuscany.sca.extension.helper.utils.AbstractBinding;
+
+/**
+ *
+ * @version $Rev$ $Date$
+ */
+public class PojoBinding extends AbstractBinding {
+
+    Object userBinding;
+    
+    public PojoBinding(Object userImpl) {
+        this.userBinding = userImpl;
+    }
+
+    public Object getUserBinding() {
+        return userBinding;
+    }
+
+}
diff --git a/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/PojoImplementation.java b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/PojoImplementation.java
new file mode 100644
index 0000000000..a59733aced
--- /dev/null
+++ b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/PojoImplementation.java
@@ -0,0 +1,58 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.extension.helper.impl;
+
+import java.lang.reflect.Method;
+
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.extension.helper.utils.DynamicImplementation;
+
+/**
+ * Enables Implementation extensions to use a simple POJO
+ * for the implementation object instead of requiring
+ * implementing the Implementation interface. 
+ *
+ * @version $Rev$ $Date$
+ */
+public class PojoImplementation<Implementation> extends DynamicImplementation {
+    
+    Object userImpl;
+    
+    public PojoImplementation(Object userImpl) {
+        this.userImpl = userImpl;
+    }
+
+    public Object getUserImpl() {
+        return userImpl;
+    }
+    
+    public void resolve(ModelResolver resolver) {
+    	
+    	try {
+  		    Method resolveMethod;
+  		    if (userImpl != null &&
+  				  (resolveMethod = userImpl.getClass().getMethod("resolve", ModelResolver.class)) != null) {
+  			    resolveMethod.invoke(userImpl, resolver);
+  		  }
+  	    } catch (Exception e) {
+  	    }
+    }
+
+}
diff --git a/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/SCDLProcessor.java b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/SCDLProcessor.java
new file mode 100644
index 0000000000..c91618c24d
--- /dev/null
+++ b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/impl/SCDLProcessor.java
@@ -0,0 +1,248 @@
+/*
+ * 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.extension.helper.impl;
+
+import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+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.Implementation;
+import org.apache.tuscany.sca.assembly.Property;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.contribution.service.ContributionReadException;
+import org.apache.tuscany.sca.contribution.service.ContributionWriteException;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.extension.helper.utils.AbstractStAXArtifactProcessor;
+import org.apache.tuscany.sca.extension.helper.utils.DynamicImplementation;
+import org.osoa.sca.ServiceRuntimeException;
+
+/**
+ * An SCDL ArtifactProcessor which uses the Implementation class getters/setters
+ * to define the SCDL attributes.
+ *
+ * @version $Rev$ $Date$
+ */
+public class SCDLProcessor extends AbstractStAXArtifactProcessor<Implementation> {
+
+    protected QName scdlQName;
+    protected Class<Implementation> implementationClass;
+    protected ExtensionPointRegistry registry;
+    protected ModelFactoryExtensionPoint factories;
+
+    protected Map<String, Method> attributeSetters;
+    protected Method elementTextSetter;
+
+    public SCDLProcessor(AssemblyFactory assemblyFactory, QName scdlQName, Class<Implementation> implementationClass, ExtensionPointRegistry registry, ModelFactoryExtensionPoint factories) {
+        super(assemblyFactory);
+        this.scdlQName = scdlQName;
+        this.implementationClass = implementationClass;
+        this.registry = registry;
+        this.factories = factories;
+        initAttributes();
+    }
+
+    protected void initAttributes() {
+        attributeSetters = new HashMap<String, Method>();
+        Set<Method> methods = new HashSet<Method>(Arrays.asList(implementationClass.getMethods()));
+        methods.removeAll(Arrays.asList(DynamicImplementation.class.getMethods()));
+        for (Method m : methods) {
+            if ("setElementText".equals(m.getName())) {
+                elementTextSetter = m;
+            } else if ((m.getName().startsWith("set"))) {
+                attributeSetters.put(getFieldName(m), m);
+            }
+        }
+    }
+
+    /**
+     * Remove get/set from method name, set 1st char to lowercase and
+     * remove any trailing underscore character
+     */
+    protected String getFieldName(Method m) {
+        StringBuilder sb = new StringBuilder(m.getName().substring(3));
+        sb.setCharAt(0, Character.toLowerCase(sb.charAt(0)));
+        String name = sb.toString();
+        if (name.endsWith("_")) {
+            name = name.substring(0,name.length()-1);
+        }
+        return name;
+    }
+
+    private Object[] getImplConstrArgs() {
+        Constructor[] cs = implementationClass.getConstructors();
+        if (cs.length != 1) {
+            throw new IllegalArgumentException("Implementation class must have a single constructor: "+ implementationClass.getName());
+        }
+        List args = new ArrayList();
+        for (Class c : cs[0].getParameterTypes()) {
+            Object o = factories.getFactory(c);
+            if (o == null) {
+                o = registry.getExtensionPoint(c);
+            }
+            args.add(o);
+        }
+        return args.toArray();
+    }
+
+    
+    public QName getArtifactType() {
+        return scdlQName;
+    }
+
+    public Class<Implementation> getModelType() {
+        Class clazz;
+        if (Implementation.class.isAssignableFrom(implementationClass)) {
+            clazz = implementationClass;
+        } else {
+            clazz = PojoImplementation.class;
+        }
+        return clazz;
+    }
+
+    public Implementation read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
+        Object impl;
+        try {
+            impl = implementationClass.getConstructors()[0].newInstance(getImplConstrArgs());
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+        for (String attribute : attributeSetters.keySet()) {
+            String value = reader.getAttributeValue(null, attribute);
+            if (value != null && value.length() > 0) {
+                try {
+                    attributeSetters.get(attribute).invoke(impl, new Object[] {value});
+                } catch (Exception e) {
+                    throw new RuntimeException(e);
+                }
+            }
+        }
+
+        if (elementTextSetter != null) {
+            try {
+                String value = reader.getElementText();
+                if (value != null && value.length() > 0) {
+                    elementTextSetter.invoke(impl, value);
+                }
+            } catch (Exception e) {
+                throw new RuntimeException(e);
+            }
+        }
+
+        while (!(reader.getEventType() == END_ELEMENT && scdlQName.equals(reader.getName())) && reader.hasNext()) {
+            reader.next();
+        }
+        
+        if (!(impl instanceof Implementation)) {
+            impl = new PojoImplementation(impl);
+        }
+
+        return (Implementation)impl;
+    }
+
+    public void write(Implementation arg0, XMLStreamWriter arg1) throws ContributionWriteException, XMLStreamException {
+    }
+
+    @Override
+    protected void addSideFileComponentType(String name, Implementation impl, ModelResolver resolver) {
+//    protected void addSideFileComponentType(Implementation impl, ModelResolver resolver) {
+
+        ComponentType componentType;
+        try {
+            componentType = getComponentType(resolver, impl);
+        } catch (Exception e) {
+            throw new ServiceRuntimeException(e);
+        }
+
+        if (componentType != null && !componentType.isUnresolved()) {
+            for (Reference reference : componentType.getReferences()) {
+                impl.getReferences().add(reference);
+            }
+            for (Service service : componentType.getServices()) {
+                impl.getServices().add(service);
+            }
+            for (Property property : componentType.getProperties()) {
+                impl.getProperties().add(property);
+            }
+            if (componentType.getConstrainingType() != null) {
+                impl.setConstrainingType(componentType.getConstrainingType());
+            }
+        }
+    }
+
+    ComponentType getComponentType(ModelResolver resolver, Implementation impl) throws IllegalArgumentException, IllegalAccessException,
+            InvocationTargetException {
+        for (Method m : getGetters()) {
+            Object io;
+            if (impl instanceof PojoImplementation) {
+                io = ((PojoImplementation) impl).getUserImpl();
+            } else {
+                io = impl;
+            }
+            String value = (String) m.invoke(io, new Object[] {});
+            if (value != null) {
+                value = value.substring(0, value.lastIndexOf('.'));
+                ComponentType componentType = assemblyFactory.createComponentType();
+                componentType.setUnresolved(true);
+                componentType.setURI(value + ".componentType");
+                componentType = resolver.resolveModel(ComponentType.class, componentType);
+                if (!componentType.isUnresolved()) {
+                    return componentType;
+                }
+            }
+        }
+        return null;
+    }
+
+    private List<Method> getGetters() {
+        List<Method> ms = new ArrayList<Method>();
+        for (Method setter : attributeSetters.values()) {
+            String s = getFieldName(setter);
+            for (Method m : implementationClass.getMethods()) {
+                String name = m.getName();
+                if (name.length() > 3 && name.startsWith("get")) {
+                    if (s.endsWith(name.substring(4))) {
+                        ms.add(m);
+                    }
+                }
+            }
+        }
+        return ms;
+    }
+}
diff --git a/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/AbstractBinding.java b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/AbstractBinding.java
new file mode 100644
index 0000000000..112fb09f2a
--- /dev/null
+++ b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/AbstractBinding.java
@@ -0,0 +1,72 @@
+/*
+ * 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.extension.helper.utils;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Binding;
+
+/**
+ * Helper for implementing Bindings, implements all the
+ * standard getters and setters on the binding interface.
+ *
+ * @version $Rev$ $Date$
+ */
+public class AbstractBinding implements Binding {
+
+    private String name;
+    private String uri;
+    private List<Object> extensions;
+    private boolean unresolved;
+
+    public String getName() {
+        return name;
+    }
+
+    public String getURI() {
+        return uri;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public void setURI(String uri) {
+        this.uri = uri;
+    }
+
+    public List<Object> getExtensions() {
+        return extensions;
+    }
+
+    public boolean isUnresolved() {
+        return unresolved;
+    }
+
+    public void setUnresolved(boolean unresolved) {
+        this.unresolved = unresolved;
+    }
+    
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        return super.clone();
+    }     
+
+}
diff --git a/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/AbstractImplementation.java b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/AbstractImplementation.java
new file mode 100644
index 0000000000..0e658cfd1e
--- /dev/null
+++ b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/AbstractImplementation.java
@@ -0,0 +1,153 @@
+/*
+ * 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.extension.helper.utils;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.ConfiguredOperation;
+import org.apache.tuscany.sca.assembly.ConstrainingType;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.Property;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.policy.Intent;
+import org.apache.tuscany.sca.policy.IntentAttachPointType;
+import org.apache.tuscany.sca.policy.PolicySet;
+
+/**
+ * Helper for implementing Implementations, implements all the
+ * standard getters and setters on the Implementation interface.
+ *
+ * @version $Rev$ $Date$
+ */
+public abstract class AbstractImplementation implements Implementation {
+
+    private List<Service> services = new ArrayList<Service>();
+    private List<Reference> references = new ArrayList<Reference>();
+    private List<Property> properties = new ArrayList<Property>();
+    private ConstrainingType constrainingType;
+    private String uri;
+    private boolean unresolved = true;
+    private List<ConfiguredOperation>  configuredOperations = new ArrayList<ConfiguredOperation>();
+    private List<PolicySet> applicablePolicySets = new ArrayList<PolicySet>();
+    private List<PolicySet> policySets = new ArrayList<PolicySet>();
+    private List<Intent> requiredIntents = new ArrayList<Intent>();
+    private IntentAttachPointType type = null;
+
+    public AbstractImplementation() {
+    }
+
+    public List<Property> getProperties() {
+        return properties;
+    }
+
+    public List<Reference> getReferences() {
+        return references;
+    }
+
+    public List<Service> getServices() {
+        return services;
+    }
+
+    public String getURI() {
+        return uri;
+    }
+
+    public void setURI(String uri) {
+        this.uri = uri;
+    }
+
+    public ConstrainingType getConstrainingType() {
+        return constrainingType;
+    }
+
+    public void setConstrainingType(ConstrainingType constrainingType) {
+        this.constrainingType = constrainingType;
+    }
+
+    public List<Object> getExtensions() {
+        // TODO what is this for?
+        return null;
+    }
+
+    public boolean isUnresolved() {
+        return unresolved;
+    }
+
+    public void setUnresolved(boolean unresolved) {
+        this.unresolved = unresolved;
+    }
+
+    public Service getService(String name) {
+        for (Service service : getServices()) {
+            if (service.getName().equals(name)) {
+                return service;
+            }
+        }
+        return null;
+    }
+
+    public Reference getReference(String name) {
+        for (Reference reference : getReferences()) {
+            if (reference.getName().equals(name)) {
+                return reference;
+            }
+        }
+        return null;
+    }
+    
+    public Property getProptery(String name) {
+        for (Property property : getProperties()) {
+            if (property.getName().equals(name)) {
+                return property;
+            }
+        }
+        return null;
+    }
+
+    public List<ConfiguredOperation> getConfiguredOperations() {
+        return configuredOperations;
+    }
+
+    //    public void setConfiguredOperations(List<ConfiguredOperation> configuredOperations) {
+    //        this.configuredOperations = configuredOperations;
+    //    }
+    
+        public List<PolicySet> getApplicablePolicySets() {
+            return applicablePolicySets;
+        }
+
+    public List<PolicySet> getPolicySets() {
+        return policySets;
+    }
+
+    public List<Intent> getRequiredIntents() {
+        return requiredIntents;
+    }
+
+    public IntentAttachPointType getType() {
+        return type;
+    }
+
+    public void setType(IntentAttachPointType type) {
+        this.type = type;
+    }
+}
diff --git a/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/AbstractStAXArtifactProcessor.java b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/AbstractStAXArtifactProcessor.java
new file mode 100644
index 0000000000..9a521b5b79
--- /dev/null
+++ b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/AbstractStAXArtifactProcessor.java
@@ -0,0 +1,132 @@
+/*
+ * 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.extension.helper.utils;
+
+import java.lang.reflect.Method;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.ComponentType;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.Property;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.contribution.service.ContributionResolveException;
+import org.apache.tuscany.sca.interfacedef.Interface;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.impl.InterfaceContractImpl;
+import org.apache.tuscany.sca.interfacedef.impl.InterfaceImpl;
+import org.apache.tuscany.sca.interfacedef.impl.OperationImpl;
+
+/**
+ * TODO: couldn't something like this class be provided by the runtime?
+ * Each impl shouldn't have to have their own .componentType merging code
+ *
+ * @version $Rev$ $Date$
+ */
+public abstract class AbstractStAXArtifactProcessor<I extends Implementation> implements StAXArtifactProcessor<I> {
+
+    protected AssemblyFactory assemblyFactory;
+
+    public AbstractStAXArtifactProcessor(AssemblyFactory assemblyFactory) {
+        this.assemblyFactory = assemblyFactory;
+    }
+
+    public void resolve(I model, ModelResolver resolver) throws ContributionResolveException {
+
+      addSideFileComponentType(model.getURI(), model, resolver);
+
+      if (model instanceof DynamicImplementation) {
+          // if no services have been defined then add a dynamic one
+          if (model.getServices().size() < 1) {
+              Service dynamicService = createDynamicService();
+              model.getServices().add(dynamicService);
+          }
+      }
+      
+      // Allow implementation classes to resolve themselves
+      try {
+		  Method resolveMethod;
+		  if ((resolveMethod = model.getClass().getMethod("resolve", ModelResolver.class)) != null) {
+			  resolveMethod.invoke(model, resolver);
+		  }
+	  } catch (Exception e) {
+	  }
+
+      model.setUnresolved(false);
+    }
+
+    protected void addSideFileComponentType(String name, Implementation impl, ModelResolver resolver) {
+        if (name == null) {
+            return;
+        }
+        int lastDot = name.lastIndexOf('.');
+        if (lastDot < 0) {
+            return;
+        }
+        String sideFileName = name.substring(0, lastDot) + ".componentType";
+
+        ComponentType componentType = assemblyFactory.createComponentType();
+        componentType.setURI(sideFileName);
+        componentType.setUnresolved(true);
+
+        componentType = resolver.resolveModel(ComponentType.class, componentType);
+
+        if (!componentType.isUnresolved()) {
+            for (Reference reference : componentType.getReferences()) {
+                impl.getReferences().add(reference);
+            }
+            for (Service service : componentType.getServices()) {
+                impl.getServices().add(service);
+            }
+            for (Property property : componentType.getProperties()) {
+                impl.getProperties().add(property);
+            }
+            if (componentType.getConstrainingType() != null) {
+                impl.setConstrainingType(componentType.getConstrainingType());
+            }
+        }
+    }
+
+    protected Service createDynamicService() {
+        Service dynamicService = assemblyFactory.createService();
+        dynamicService.setName("$dynamic$");
+        InterfaceContract dynamicInterfaceContract = new InterfaceContractImpl() {};
+        Interface dynamicInterface = new DynamicInterfaceImpl();
+        Operation dynamicOperation = new OperationImpl();
+        dynamicOperation.setDynamic(true);
+        dynamicInterface.getOperations().add(dynamicOperation);
+        dynamicInterfaceContract.setInterface(dynamicInterface);
+        dynamicService.setInterfaceContract(dynamicInterfaceContract);
+
+        return dynamicService;
+    }
+    
+    private static class DynamicInterfaceImpl extends InterfaceImpl {
+        @Override
+        public boolean isDynamic() {
+            return true;
+        }
+        
+    }
+
+}
\ No newline at end of file
diff --git a/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/DefaultPropertyValueObjectFactory.java b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/DefaultPropertyValueObjectFactory.java
new file mode 100644
index 0000000000..550498d7b1
--- /dev/null
+++ b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/DefaultPropertyValueObjectFactory.java
@@ -0,0 +1,231 @@
+/*
+ * 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.extension.helper.utils;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.StringTokenizer;
+
+import org.apache.tuscany.sca.assembly.Property;
+import org.apache.tuscany.sca.core.factory.ObjectCreationException;
+import org.apache.tuscany.sca.core.factory.ObjectFactory;
+import org.apache.tuscany.sca.databinding.Mediator;
+import org.apache.tuscany.sca.databinding.SimpleTypeMapper;
+import org.apache.tuscany.sca.databinding.impl.SimpleTypeMapperImpl;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.util.XMLType;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.Node;
+
+/**
+ * TODO: Shouldn't this class be provided by the runtime?
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultPropertyValueObjectFactory implements PropertyValueObjectFactory {
+    // protected DataBindingRegistry dbRegistry = new DataBindingRegistryImpl();
+    protected Mediator mediator = null;
+    protected SimpleTypeMapper simpleTypeMapper = new SimpleTypeMapperImpl();
+    boolean isSimpleType;
+    
+    public DefaultPropertyValueObjectFactory(Mediator mediator) {
+        this.mediator = mediator;
+    }
+    
+    /* (non-Javadoc)
+     * @see org.apache.tuscany.sca.extension.helper.utils.PVOF#createValueFactory(org.apache.tuscany.sca.assembly.Property)
+     */
+    public ObjectFactory createValueFactory(Property property) {
+        isSimpleType = isSimpleType(property);
+        Document doc = (Document)property.getValue();
+        Element rootElement = doc.getDocumentElement();
+        
+        //FIXME : since scripts use dynamic types we need to generate a dynamic java type using the 
+        //XML structure of the property value.  Should this be done in the JavaBeansDataBinding... 
+        Class javaType = null;
+        
+        if (property.isMany()) {
+            if (isSimpleType) {
+                String value = "";
+                if (rootElement.getChildNodes().getLength() > 0) {
+                    value = rootElement.getChildNodes().item(0).getTextContent();
+                }
+                List<String> values = 
+                    getSimplePropertyValues(value, javaType);
+                return new ListObjectFactoryImpl(property, 
+                                                 values,
+                                                 isSimpleType,
+                                                 javaType);
+            } else {
+                return new ListObjectFactoryImpl(property,
+                                                 getComplexPropertyValues(doc),
+                                                 isSimpleType,
+                                                 javaType);
+            }
+        } else {
+            if (isSimpleType) {
+                String value = "";
+                if (rootElement.getChildNodes().getLength() > 0) {
+                    value = rootElement.getChildNodes().item(0).getTextContent();
+                }
+                return new ObjectFactoryImpl(property,
+                                             value,
+                                             isSimpleType,
+                                             javaType);
+            } else {
+                Object value = getComplexPropertyValues(doc).get(0);
+                return new ObjectFactoryImpl(property,
+                                             value,
+                                             isSimpleType,
+                                             javaType);
+            }
+            
+        }
+    }
+    
+    private boolean isSimpleType(Property property) {
+        if (property.getXSDType() != null) {
+            return SimpleTypeMapperImpl.isSimpleXSDType(property.getXSDType());
+        } else {
+            if (property instanceof Document) {
+                Document doc = (Document)property;
+                Element element = doc.getDocumentElement(); 
+                if (element.getChildNodes().getLength() == 1 && 
+                    element.getChildNodes().item(0).getNodeType() == Node.TEXT_NODE) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+    
+    private List<String> getSimplePropertyValues(String concatenatedValue, Class javaType) {
+        List<String> propValues = new ArrayList<String>();
+        StringTokenizer st = null;
+        if ( javaType.getName().equals("java.lang.String")) {
+            st = new StringTokenizer(concatenatedValue, "\"");
+        } else {
+            st = new StringTokenizer(concatenatedValue);
+        }
+        String aToken = null;
+        while (st.hasMoreTokens()) {
+            aToken = st.nextToken();
+            if (aToken.trim().length() > 0) {
+                propValues.add(aToken);
+            }
+        }
+        return propValues;
+    }
+    
+    private List<Node> getComplexPropertyValues(Document document) {
+        Element rootElement = document.getDocumentElement();
+        List<Node> propValues = new ArrayList<Node>();
+        for (int count = 0 ; count < rootElement.getChildNodes().getLength() ; ++count) {
+            if (rootElement.getChildNodes().item(count).getNodeType() == Node.ELEMENT_NODE) {
+                propValues.add(rootElement.getChildNodes().item(count));
+            }
+        }
+        return propValues;
+    }
+    
+    public abstract class ObjectFactoryImplBase  implements ObjectFactory {
+        protected SimpleTypeMapper simpleTypeMapper = new SimpleTypeMapperImpl();
+        protected Property property;
+        protected Object propertyValue;
+        protected Class javaType;
+        protected DataType<XMLType> sourceDataType;
+        protected DataType<?> targetDataType;
+        boolean isSimpleType;
+
+        public ObjectFactoryImplBase(Property property, Object propertyValue, boolean isSimpleType, Class javaType)  {
+            
+            this.isSimpleType = isSimpleType;
+            this.property = property;
+            this.propertyValue = propertyValue;
+            this.javaType = javaType;
+            //FIXME : fix this when we have managed to generate dynamic java types
+            /*sourceDataType =
+                new DataTypeImpl<XMLType>(DOMDataBinding.NAME, Node.class, 
+                    new XMLType(null, this.property.getXSDType()));
+            TypeInfo typeInfo = null;
+            if (this.property.getXSDType() != null) {
+                if (SimpleTypeMapperExtension.isSimpleXSDType(this.property.getXSDType())) {
+                    typeInfo = new TypeInfo(property.getXSDType(), true, null);
+                } else {
+                    typeInfo = new TypeInfo(property.getXSDType(), false, null);
+                }
+            } else {
+                typeInfo = new TypeInfo(property.getXSDType(), false, null);
+            }
+
+            XMLType xmlType = new XMLType(typeInfo);
+            String dataBinding = null; //(String)property.getExtensions().get(DataBinding.class.getName());
+            if (dataBinding != null) {
+                targetDataType = new DataTypeImpl<XMLType>(dataBinding, javaType, xmlType);
+            } else {
+                targetDataType = new DataTypeImpl<XMLType>(dataBinding, javaType, xmlType);
+                mediator.getDataBindingRegistry().introspectType(targetDataType, null);  
+            }*/
+        }
+    }
+    
+    public class ObjectFactoryImpl extends ObjectFactoryImplBase {
+        public ObjectFactoryImpl(Property property, Object propertyValue, boolean isSimpleType, Class javaType) {
+            super(property, propertyValue, isSimpleType, javaType);
+        }
+
+        @SuppressWarnings("unchecked")
+        public Object getInstance() throws ObjectCreationException {
+            if (isSimpleType) {
+                return simpleTypeMapper.toJavaObject(property.getXSDType(), (String)propertyValue, null);
+            } else {
+                return mediator.mediate(propertyValue, sourceDataType, targetDataType, null);
+                //return null;
+            }
+        }
+    }
+
+    public class ListObjectFactoryImpl extends ObjectFactoryImplBase  {
+        public ListObjectFactoryImpl(Property property, List<?>propertyValues, boolean isSimpleType, Class javaType) {
+            super(property, propertyValues, isSimpleType, javaType);
+        }
+
+        @SuppressWarnings("unchecked")
+        public List<?> getInstance() throws ObjectCreationException {
+            if (isSimpleType) {
+                List<Object> values = new ArrayList<Object>();
+                for (String aValue : (List<String>)propertyValue) {
+                    values.add(simpleTypeMapper.toJavaObject(property.getXSDType(), aValue, null));
+                }
+                return values;
+            } else {
+                List instances = new ArrayList();
+                for (Node aValue : (List<Node>)propertyValue) {
+                    instances.add(mediator.mediate(aValue,
+                                                      sourceDataType,
+                                                      targetDataType,
+                                                      null));
+                }
+                return instances;
+            }
+        }
+    }
+}
+      
\ No newline at end of file
diff --git a/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/DynamicImplementation.java b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/DynamicImplementation.java
new file mode 100644
index 0000000000..dbfb9d089f
--- /dev/null
+++ b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/DynamicImplementation.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.extension.helper.utils;
+
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.Property;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.assembly.builder.ComponentPreProcessor;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+
+/**
+ *
+ * @version $Rev$ $Date$
+ */
+public class DynamicImplementation extends AbstractImplementation implements ComponentPreProcessor {
+    
+    public void preProcess(Component component) {
+        RuntimeComponent rtc = (RuntimeComponent) component;
+        
+        for (Service service : rtc.getServices()) {
+            if (getService(service.getName()) == null) {
+                getServices().add(createService(service));
+            }
+        }
+        
+        Service dynamicService = getService("$dynamic$");
+        if (dynamicService != null && getServices().size() > 1) {
+            getServices().remove(dynamicService);
+            dynamicService = null;
+        }
+
+        for (Reference reference : rtc.getReferences()) {
+            if (getReference(reference.getName()) == null) {
+                getReferences().add(createReference(reference));
+            }
+        }
+        
+        for (Property property : rtc.getProperties()) {
+            if (getProptery(property.getName()) == null) {
+                getProperties().add(createProperty(property));
+            }
+        }
+        
+        // TODO: support properties
+    }
+    
+    protected Service createService(Service service) {
+        Service newService;
+        try {
+            newService = (Service)service.clone();
+        } catch (CloneNotSupportedException e) {
+            throw new AssertionError(e); // should not ever happen
+        }
+
+        return newService;
+    }
+
+    protected Reference createReference(Reference reference) {
+        Reference newReference;
+        try {
+            newReference = (Reference)reference.clone();
+        } catch (CloneNotSupportedException e) {
+            throw new AssertionError(e); // should not ever happen
+        }
+        return newReference;
+    }
+    
+    protected Property createProperty(Property property) {
+        Property newProperty;
+        try {
+            newProperty = (Property)property.clone();
+        } catch (CloneNotSupportedException e) {
+            throw new AssertionError(e); // should not ever happen
+        }
+        return newProperty;
+    }
+
+}
diff --git a/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/PropertyValueObjectFactory.java b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/PropertyValueObjectFactory.java
new file mode 100644
index 0000000000..f209825679
--- /dev/null
+++ b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/PropertyValueObjectFactory.java
@@ -0,0 +1,33 @@
+/*
+ * 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.extension.helper.utils;
+
+import org.apache.tuscany.sca.assembly.Property;
+import org.apache.tuscany.sca.core.factory.ObjectFactory;
+
+/**
+ *
+ * @version $Rev$ $Date$
+ */
+public interface PropertyValueObjectFactory {
+
+    ObjectFactory createValueFactory(Property property);
+
+}
diff --git a/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/ResourceHelper.java b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/ResourceHelper.java
new file mode 100644
index 0000000000..4e7965ce60
--- /dev/null
+++ b/branches/sca-java-1.4/modules/extension-helper/src/main/java/org/apache/tuscany/sca/extension/helper/utils/ResourceHelper.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.extension.helper.utils;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.Reader;
+import java.net.URL;
+import java.net.URLConnection;
+
+/**
+ * TODO: Shouldn't this be using the contribution service?
+ *
+ * @version $Rev$ $Date$
+ */
+public class ResourceHelper {
+
+    public static String readResource(URL scriptSrcUrl) {
+        
+        InputStream is;
+        try {
+            URLConnection connection = scriptSrcUrl.openConnection();                       
+            connection.setUseCaches(false);
+            is = connection.getInputStream();
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+
+        try {
+
+            Reader reader = new InputStreamReader(is, "UTF-8");
+            char[] buffer = new char[1024];
+            StringBuilder source = new StringBuilder();
+            int count;
+            while ((count = reader.read(buffer)) > 0) {
+                source.append(buffer, 0, count);
+            }
+
+            return source.toString();
+
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        } finally {
+            try {
+                is.close();
+            } catch (IOException e) {
+                // ignore
+            }
+        }
+    }
+
+}
diff --git a/branches/sca-java-1.4/modules/extension-helper/src/main/resources/META-INF/services/org.apache.tuscany.sca.core.ModuleActivator b/branches/sca-java-1.4/modules/extension-helper/src/main/resources/META-INF/services/org.apache.tuscany.sca.core.ModuleActivator
new file mode 100644
index 0000000000..a408b0d061
--- /dev/null
+++ b/branches/sca-java-1.4/modules/extension-helper/src/main/resources/META-INF/services/org.apache.tuscany.sca.core.ModuleActivator
@@ -0,0 +1,20 @@
+# 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 ExtensionActivator

+org.apache.tuscany.sca.extension.helper.impl.ImplementationsActivator

+org.apache.tuscany.sca.extension.helper.impl.BindingsActivator