Move Tuscany from Incubator to top level.

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

20 files changed, 1581 insertions, 0 deletions

diff --git a/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/DataObject2String.java b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/DataObject2String.java
new file mode 100755
index 0000000000..405de57ab3
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/DataObject2String.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.databinding.sdo;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.databinding.PullTransformer;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.databinding.TransformationException;
+import org.apache.tuscany.sca.databinding.impl.BaseTransformer;
+
+import commonj.sdo.DataObject;
+import commonj.sdo.helper.HelperContext;
+import commonj.sdo.helper.XMLHelper;
+
+public class DataObject2String extends BaseTransformer<DataObject, String> implements
+    PullTransformer<DataObject, String> {
+
+    public String transform(DataObject source, TransformationContext context) {
+        try {
+            HelperContext helperContext = SDOContextHelper.getHelperContext(context);
+            XMLHelper xmlHelper = helperContext.getXMLHelper();
+            QName elementName = SDOContextHelper.getElement(context.getSourceDataType());
+            return xmlHelper.save(source, elementName.getNamespaceURI(), elementName.getLocalPart());
+        } catch (Exception e) {
+            throw new TransformationException(e);
+        }
+    }
+
+    public Class getSourceType() {
+        return DataObject.class;
+    }
+
+    public Class getTargetType() {
+        return String.class;
+    }
+
+    public int getWeight() {
+        return 40;
+    }
+
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/DataObject2XMLStreamReader.java b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/DataObject2XMLStreamReader.java
new file mode 100755
index 0000000000..863a787362
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/DataObject2XMLStreamReader.java
@@ -0,0 +1,68 @@
+/*
+ * 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.databinding.sdo;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+
+import org.apache.tuscany.sca.databinding.PullTransformer;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.databinding.TransformationException;
+import org.apache.tuscany.sca.databinding.impl.BaseTransformer;
+import org.apache.tuscany.sdo.helper.XMLStreamHelper;
+import org.apache.tuscany.sdo.util.SDOUtil;
+
+
+import commonj.sdo.DataObject;
+import commonj.sdo.helper.HelperContext;
+import commonj.sdo.helper.XMLDocument;
+import commonj.sdo.helper.XMLHelper;
+
+public class DataObject2XMLStreamReader extends BaseTransformer<DataObject, XMLStreamReader> implements
+        PullTransformer<DataObject, XMLStreamReader> {
+
+    public XMLStreamReader transform(DataObject source, TransformationContext context) {
+        try {
+            HelperContext helperContext = SDOContextHelper.getHelperContext(context);
+            XMLStreamHelper streamHelper = SDOUtil.createXMLStreamHelper(helperContext.getTypeHelper());
+            QName elementName = SDOContextHelper.getElement(context.getSourceDataType());
+            XMLHelper xmlHelper = helperContext.getXMLHelper();
+            XMLDocument document =
+                    xmlHelper.createDocument(source, elementName.getNamespaceURI(), elementName.getLocalPart());
+            return streamHelper.createXMLStreamReader(document);
+        } catch (XMLStreamException e) {
+            // TODO: Add context to the exception
+            throw new TransformationException(e);
+        }
+    }
+
+    public Class getSourceType() {
+        return DataObject.class;
+    }
+
+    public Class getTargetType() {
+        return XMLStreamReader.class;
+    }
+
+    public int getWeight() {
+        return 10;
+    }
+
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/DuplicateHelperContextException.java b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/DuplicateHelperContextException.java
new file mode 100644
index 0000000000..c83e93dc4e
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/DuplicateHelperContextException.java
@@ -0,0 +1,37 @@
+/*
+ * 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.databinding.sdo;
+
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class DuplicateHelperContextException extends RuntimeException {
+    private static final long serialVersionUID = -5229624905543066038L;
+
+    /**
+     * Constructor specifying message and the ID of the duplicate HelperContext.
+     * 
+     * @param message exception message
+     * @param identifier the id of the HelperContext that is already present
+     */
+    public DuplicateHelperContextException(String message) {
+        super(message);
+    }
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/HelperContextProcessor.java b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/HelperContextProcessor.java
new file mode 100644
index 0000000000..561e5f3b39
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/HelperContextProcessor.java
@@ -0,0 +1,110 @@
+/*
+ * 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.databinding.sdo;
+
+import java.beans.Introspector;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.implementation.java.JavaImplementation;
+import org.apache.tuscany.sca.implementation.java.impl.JavaElementImpl;
+import org.apache.tuscany.sca.implementation.java.impl.JavaResourceImpl;
+import org.apache.tuscany.sca.implementation.java.introspect.IntrospectionException;
+import org.apache.tuscany.sca.implementation.java.introspect.impl.BaseJavaClassVisitor;
+
+import commonj.sdo.helper.HelperContext;
+
+/**
+ * Processes {@link @HelperContext} annotations on a component implementation
+ * and adds a {@link JavaMappedProperty} to the component type which will be
+ * used to inject the appropriate context
+ * 
+ * @version $Rev$ $Date$
+ */
+public class HelperContextProcessor extends BaseJavaClassVisitor {
+    private HelperContextRegistry registry;
+    
+    /**
+     * @param registry
+     */
+    public HelperContextProcessor(AssemblyFactory assemblyFactory, HelperContextRegistry registry) {
+        super(assemblyFactory);
+        this.registry = registry;
+    }
+
+    /**
+     * Takes a setter or getter method name and converts it to a property name
+     * according to JavaBean conventions. For example, <code>setFoo(var)</code>
+     * is returned as property <code>foo<code>
+     */
+    public static String toPropertyName(String name) {
+        if (!name.startsWith("set")) {
+            return name;
+        }
+        return Introspector.decapitalize(name.substring(3));
+    }
+
+    public void visitMethod(Method method,
+                            JavaImplementation type) throws IntrospectionException {
+        if (!method.isAnnotationPresent(org.apache.tuscany.sca.databinding.sdo.api.HelperContext.class)) {
+            return;
+        }
+        if (method.getParameterTypes().length != 1) {
+            throw new IllegalArgumentException("HelperContext setter must have one parameter: " + method);
+        }
+        Class<?> paramType = method.getParameterTypes()[0];
+        if (HelperContext.class == paramType) {
+            String name = toPropertyName(method.getName());
+            JavaResourceImpl resource = new JavaResourceImpl(new JavaElementImpl(method, 0));
+//            resource.setObjectFactory(new HelperContextFactory(context.getComponentId()));
+            type.getResources().put(name, resource);
+        }
+    }
+
+    public void visitField(Field field,
+                           JavaImplementation type) throws IntrospectionException {
+        if (!field.isAnnotationPresent(org.apache.tuscany.sca.databinding.sdo.api.HelperContext.class)) {
+            return;
+        }
+        Class<?> paramType = field.getType();
+        if (HelperContext.class == paramType) {
+            String name = field.getName();
+            JavaResourceImpl resource = new JavaResourceImpl(new JavaElementImpl(field));
+//            resource.setObjectFactory(new HelperContextFactory(context.getComponentId()));
+            type.getResources().put(name, resource);
+        }
+    }
+
+    /*
+    private class HelperContextFactory implements ObjectFactory<HelperContext> {
+        private URI id;
+
+        public HelperContextFactory(URI id) {
+            super();
+            this.id = id;
+        }
+
+        public HelperContext getInstance() throws ObjectCreationException {
+            return registry.getHelperContext(id);
+        }
+
+    }
+    */
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/HelperContextRegistry.java b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/HelperContextRegistry.java
new file mode 100644
index 0000000000..75d9d33cbb
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/HelperContextRegistry.java
@@ -0,0 +1,52 @@
+/*
+ * 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.databinding.sdo;
+
+import commonj.sdo.helper.HelperContext;
+
+/**
+ * A registry for SDO HelperContext
+ * 
+ * @version $Rev$ $Date$
+ */
+public interface HelperContextRegistry {
+    /**
+     * Register a HelperContext with the id
+     * 
+     * @param id
+     * @param context
+     */
+    void register(Object id, HelperContext context) throws DuplicateHelperContextException;
+
+    /**
+     * Unregister the HelperContext
+     * 
+     * @param id
+     */
+    void unregister(Object id);
+
+    /**
+     * Get the HelperContext associated with the id
+     * 
+     * @param id The URI of the HelperContext
+     * @return
+     */
+    HelperContext getHelperContext(Object id);
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/HelperContextRegistryImpl.java b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/HelperContextRegistryImpl.java
new file mode 100644
index 0000000000..429946f78d
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/HelperContextRegistryImpl.java
@@ -0,0 +1,49 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.databinding.sdo;
+
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import commonj.sdo.helper.HelperContext;
+
+/**
+ * A registry for SDO HelperContext
+ * 
+ * @version $Rev$ $Date$
+ */
+public class HelperContextRegistryImpl implements HelperContextRegistry {
+    private final Map<Object, HelperContext> registry = new ConcurrentHashMap<Object, HelperContext>();
+
+    public synchronized void register(Object id, HelperContext context) {
+        if (registry.containsKey(id)) {
+            throw new DuplicateHelperContextException("Duplicate HelperContext: " + id);
+        }
+        registry.put(id, context);
+    }
+
+    public void unregister(Object id) {
+        registry.remove(id);
+    }
+
+    public HelperContext getHelperContext(Object id) {
+        return registry.get(id);
+    }
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/ImportSDO.java b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/ImportSDO.java
new file mode 100644
index 0000000000..30a3e1c3a9
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/ImportSDO.java
@@ -0,0 +1,78 @@
+/*
+ * 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.databinding.sdo;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.assembly.impl.BaseImpl;
+
+import commonj.sdo.helper.HelperContext;
+
+/**
+ * The model object for import.sdo
+ * 
+ * @version $Rev$ $Date$
+ */
+public class ImportSDO extends BaseImpl {
+    public static final QName IMPORT_SDO =
+        new QName("http://tuscany.apache.org/xmlns/sca/databinding/sdo/1.0", "import.sdo");
+
+    private HelperContext helperContext;
+    private String factoryClassName;
+    private String schemaLocation;
+
+    public ImportSDO(HelperContext helperContext) {
+        super();
+        this.helperContext = helperContext;
+        setUnresolved(true);
+    }
+
+    public HelperContext getHelperContext() {
+        return helperContext;
+    }
+
+    /**
+     * @return the factoryClassName
+     */
+    public String getFactoryClassName() {
+        return factoryClassName;
+    }
+
+    /**
+     * @param factoryClassName the factoryClassName to set
+     */
+    public void setFactoryClassName(String factoryClassName) {
+        this.factoryClassName = factoryClassName;
+    }
+
+    /**
+     * @return the schemaLocation
+     */
+    public String getSchemaLocation() {
+        return schemaLocation;
+    }
+
+    /**
+     * @param schemaLocation the schemaLocation to set
+     */
+    public void setSchemaLocation(String schemaLocation) {
+        this.schemaLocation = schemaLocation;
+    }
+}
\ No newline at end of file
diff --git a/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/ImportSDOProcessor.java b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/ImportSDOProcessor.java
new file mode 100755
index 0000000000..32019ef760
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/ImportSDOProcessor.java
@@ -0,0 +1,193 @@
+/*
+ * 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.databinding.sdo;
+
+import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
+import static org.apache.tuscany.sca.databinding.sdo.ImportSDO.IMPORT_SDO;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.net.URI;
+import java.net.URL;
+
+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.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.sdo.util.SDOUtil;
+
+import commonj.sdo.helper.HelperContext;
+import commonj.sdo.helper.XSDHelper;
+import commonj.sdo.impl.HelperProvider;
+
+
+/**
+ * Loader that handles &lt;import.sdo&gt; elements.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class ImportSDOProcessor implements StAXArtifactProcessor<ImportSDO> {
+    private HelperContextRegistry helperContextRegistry;
+
+    public ImportSDOProcessor(HelperContextRegistry helperContextRegistry) {
+        super();
+        this.helperContextRegistry = helperContextRegistry;
+    }
+
+    public QName getXMLType() {
+        return IMPORT_SDO;
+    }
+
+    public ImportSDO read(XMLStreamReader reader) throws ContributionReadException {
+        assert IMPORT_SDO.equals(reader.getName());
+
+        HelperContext helperContext = null;
+
+        // FIXME: [rfeng] How to get the enclosing composite?
+        int id = System.identityHashCode(reader);
+        // FIXME: [rfeng] How to associate the TypeHelper with deployment
+        // context?
+        synchronized (helperContextRegistry) {
+            helperContext = helperContextRegistry.getHelperContext(id);
+            if (helperContext == null) {
+                helperContext = SDOUtil.createHelperContext();
+                helperContextRegistry.register(id, helperContext);
+            }
+        }
+
+        ImportSDO importSDO = new ImportSDO(helperContext);
+        String factoryName = reader.getAttributeValue(null, "factory");
+        if (factoryName != null) {
+            importSDO.setFactoryClassName(factoryName);
+        }
+        String location = reader.getAttributeValue(null, "location");
+        if (location != null) {
+            importSDO.setSchemaLocation(location);
+        }
+
+        // Skip to end element
+        try {
+            while (reader.hasNext()) {
+                if (reader.next() == END_ELEMENT && ImportSDO.IMPORT_SDO.equals(reader.getName())) {
+                    break;
+                }
+            }
+        } catch (XMLStreamException e) {
+            throw new ContributionReadException(e);
+        }
+        return importSDO;
+    }
+
+    private void importFactory(ImportSDO importSDO) throws ContributionResolveException {
+        String factoryName = importSDO.getFactoryClassName();
+        if (factoryName != null) {
+            ClassLoader cl = Thread.currentThread().getContextClassLoader();
+            try {
+                Class<?> factoryClass = cl.loadClass(factoryName);
+                register(factoryClass, importSDO.getHelperContext());
+            } catch (Exception e) {
+                throw new ContributionResolveException(e);
+            }
+            importSDO.setUnresolved(false);
+        }
+    }
+
+    private static void register(Class factoryClass, HelperContext helperContext) throws Exception {
+        Field field = factoryClass.getField("INSTANCE");
+        Object factory = field.get(null);
+        Method method = factory.getClass().getMethod("register", new Class[] {HelperContext.class});
+        method.invoke(factory, new Object[] {helperContext});
+
+        // FIXME: How do we associate the application HelperContext with the one
+        // imported by the composite
+        HelperContext defaultContext = HelperProvider.getDefaultContext();
+        method.invoke(factory, new Object[] {defaultContext});
+    }
+
+    private void importWSDL(ImportSDO importSDO) throws ContributionResolveException {
+        String location = importSDO.getSchemaLocation();
+        if (location != null) {
+            try {
+                URL wsdlURL = null;
+                URI uri = URI.create(location);
+                if (uri.isAbsolute()) {
+                    wsdlURL = uri.toURL();
+                }
+                wsdlURL = Thread.currentThread().getContextClassLoader().getResource(location);
+                if (null == wsdlURL) {
+                    ContributionResolveException loaderException = new ContributionResolveException(
+                                                                                                    "WSDL location error");
+                    throw loaderException;
+                }
+                InputStream xsdInputStream = wsdlURL.openStream();
+                try {
+                    XSDHelper xsdHelper = importSDO.getHelperContext().getXSDHelper();
+                    xsdHelper.define(xsdInputStream, wsdlURL.toExternalForm());
+                } finally {
+                    xsdInputStream.close();
+                }
+                // FIXME: How do we associate the application HelperContext with
+                // the one
+                // imported by the composite
+                HelperContext defaultContext = HelperProvider.getDefaultContext();
+                xsdInputStream = wsdlURL.openStream();
+                try {
+                    XSDHelper xsdHelper = defaultContext.getXSDHelper();
+                    ClassLoader cl = Thread.currentThread().getContextClassLoader();
+                    xsdHelper.define(xsdInputStream, wsdlURL.toExternalForm());
+                } finally {
+                    xsdInputStream.close();
+                }
+            } catch (IOException e) {
+                throw new ContributionResolveException(e);
+            }
+            importSDO.setUnresolved(false);
+        }
+    }
+
+    public QName getArtifactType() {
+        return ImportSDO.IMPORT_SDO;
+    }
+
+    public void write(ImportSDO model, XMLStreamWriter outputSource) throws ContributionWriteException {
+        // TODO Auto-generated method stub
+
+    }
+
+    public Class<ImportSDO> getModelType() {
+        return ImportSDO.class;
+    }
+
+    public void resolve(ImportSDO importSDO, ModelResolver resolver) throws ContributionResolveException {
+        importFactory(importSDO);
+        importWSDL(importSDO);
+        if (!importSDO.isUnresolved()) {
+            resolver.addModel(importSDO);
+        }
+    }
+
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDOContextHelper.java b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDOContextHelper.java
new file mode 100644
index 0000000000..78058a5969
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDOContextHelper.java
@@ -0,0 +1,106 @@
+/*
+ * 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.databinding.sdo;
+
+import java.awt.Component;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.util.XMLType;
+import org.apache.tuscany.sdo.util.SDOUtil;
+
+import commonj.sdo.helper.HelperContext;
+import commonj.sdo.impl.HelperProvider;
+
+/**
+ * Helper class to get TypeHelper from the context
+ */
+public final class SDOContextHelper {
+    private SDOContextHelper() {
+    }
+
+    public static HelperContext getHelperContext(TransformationContext context) {
+        if (context == null || context.getMetadata() == null) {
+            return getDefaultHelperContext();
+        }
+        HelperContext helperContext = null;
+        Component composite = (Component)context.getMetadata().get(Component.class);
+        if (composite != null) {
+            // SDOHelperContext sdoContext =
+            // (SDOHelperContext)composite.getExtensions().get(HelperContext.class.getName());
+            // if (sdoContext != null) {
+            // helperContext = sdoContext.getHelperContext();
+            // }
+            // AtomicComponent child =
+            // (AtomicComponent)composite.getSystemChild(HelperContext.class.getName());
+            // try {
+            // helperContext = (HelperContext)child.getTargetInstance();
+            // } catch (TargetResolutionException e) {
+            // helperContext = null;
+            // }
+        }
+        if (helperContext == null) {
+            return getDefaultHelperContext();
+        } else {
+            return helperContext;
+        }
+    }
+
+    public static HelperContext getHelperContext(Composite model) {
+        HelperContext helperContext = null;
+        for (Object ext : model.getExtensions()) {
+            if (ext instanceof HelperContext) {
+                helperContext = (HelperContext)ext;
+                break;
+            }
+        }
+        if (helperContext == null) {
+            helperContext = SDOUtil.createHelperContext();
+            model.getExtensions().add(helperContext);
+        }
+
+        if (helperContext == null) {
+            helperContext = getDefaultHelperContext();
+        }
+
+        return helperContext;
+    }
+
+    protected static HelperContext getDefaultHelperContext() {
+        // SDOUtil.createHelperContext();
+        return HelperProvider.getDefaultContext();
+    }
+
+    public static QName getElement(DataType<?> dataType) {
+        Object logical = dataType.getLogical();
+        QName elementName = SDODataBinding.ROOT_ELEMENT;
+        if (logical instanceof XMLType) {
+            XMLType xmlType = (XMLType)logical;
+            QName element = xmlType.getElementName();
+            if (element != null) {
+                elementName = element;
+            }
+        }
+        return elementName;
+    }
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDODataBinding.java b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDODataBinding.java
new file mode 100644
index 0000000000..2736d4bbde
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDODataBinding.java
@@ -0,0 +1,122 @@
+/*
+ * 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.databinding.sdo;
+
+import java.lang.annotation.Annotation;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.databinding.ExceptionHandler;
+import org.apache.tuscany.sca.databinding.SimpleTypeMapper;
+import org.apache.tuscany.sca.databinding.WrapperHandler;
+import org.apache.tuscany.sca.databinding.impl.BaseDataBinding;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.util.XMLType;
+
+import commonj.sdo.DataObject;
+import commonj.sdo.Type;
+import commonj.sdo.helper.CopyHelper;
+import commonj.sdo.helper.HelperContext;
+import commonj.sdo.helper.XMLDocument;
+import commonj.sdo.impl.HelperProvider;
+
+/**
+ * SDO Databinding
+ * 
+ * @version $Reve$ $Date$
+ */
+public class SDODataBinding extends BaseDataBinding {
+    public static final String NAME = DataObject.class.getName();
+    public static final String[] ALIASES = new String[] {"sdo"};
+    
+    public static final String ROOT_NAMESPACE = "commonj.sdo";
+    public static final QName ROOT_ELEMENT = new QName(ROOT_NAMESPACE, "dataObject");
+
+    private WrapperHandler<Object> wrapperHandler;
+
+    public SDODataBinding() {
+        super(NAME, ALIASES, DataObject.class);
+        wrapperHandler = new SDOWrapperHandler();
+    }
+
+    @Override
+    public boolean introspect(DataType dataType, Annotation[] annotations) {
+        Object physical = dataType.getPhysical();
+        if (!(physical instanceof Class)) {
+            return false;
+        }
+        Class javaType = (Class)physical;
+        HelperContext context = HelperProvider.getDefaultContext();
+        // FIXME: Need a better to test dynamic SDO
+        if (DataObject.class.isAssignableFrom(javaType)) {
+            // Dynamic SDO
+            dataType.setDataBinding(getName());
+            dataType.setLogical(XMLType.UNKNOWN);
+            return true;
+        }
+        // FIXME: We need to access HelperContext
+        Type type = context.getTypeHelper().getType(javaType);
+        if (type == null) {
+            return false;
+        }
+        if (type.isDataType()) {
+            // FIXME: Ignore simple types?
+            return false;
+        }
+        String namespace = type.getURI();
+        String name = context.getXSDHelper().getLocalName(type);
+        QName xmlType = new QName(namespace, name);
+        dataType.setDataBinding(getName());
+        dataType.setLogical(new XMLType(null, xmlType));
+        return true;
+    }
+
+    @Override
+    public WrapperHandler getWrapperHandler() {
+        return wrapperHandler;
+    }
+
+    public SimpleTypeMapper getSimpleTypeMapper() {
+        return new SDOSimpleTypeMapper();
+    }
+
+    @Override
+    public Object copy(Object arg) {
+        HelperContext context = HelperProvider.getDefaultContext();
+        CopyHelper copyHelper = context.getCopyHelper();
+        if (arg instanceof XMLDocument) {
+            XMLDocument document = (XMLDocument)arg;
+            DataObject dataObject = copyHelper.copy(document.getRootObject());
+            return context.getXMLHelper().createDocument(dataObject,
+                                                         document.getRootElementURI(),
+                                                         document.getRootElementName());
+        } else if (arg instanceof DataObject) {
+            return context.getCopyHelper().copy((DataObject)arg);
+        } else {
+            return super.copy(arg);
+        }
+    }
+
+    @Override
+    public ExceptionHandler getExceptionHandler() {
+        return new SDOExceptionHandler();
+    }
+
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDOExceptionHandler.java b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDOExceptionHandler.java
new file mode 100644
index 0000000000..1056d2ec38
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDOExceptionHandler.java
@@ -0,0 +1,124 @@
+/*
+ * 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.databinding.sdo;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.databinding.ExceptionHandler;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.impl.DataTypeImpl;
+import org.apache.tuscany.sca.interfacedef.util.XMLType;
+
+import commonj.sdo.Type;
+import commonj.sdo.helper.HelperContext;
+import commonj.sdo.impl.HelperProvider;
+
+/**
+ * SDO implementation of ExceptionHandler
+ * 
+ * @version $Rev$ $Date$
+ */
+public class SDOExceptionHandler implements ExceptionHandler {
+    private static final Class[] EMPTY_CLASS_ARRAY = new Class[0];
+
+    // FIXME: Need a way to pass in the HelperContext
+    private HelperContext helperContext = HelperProvider.getDefaultContext();
+
+    /**
+     * <ul>
+     * <li>WrapperException(String message, FaultBean faultInfo) <br>
+     * A constructor where WrapperException is replaced with the name of the
+     * generated wrapper exception and FaultBean is replaced by the name of the
+     * generated fault bean.
+     * <li> WrapperException(String message, FaultBean faultInfo, Throwable
+     * cause) <br>
+     * A constructor whereWrapperException is replaced with the name of the
+     * generated wrapper exception and FaultBean is replaced by the name of the
+     * generated fault bean. The last argument, cause, may be used to convey
+     * protocol specific fault information
+     * </ul>
+     */
+    public Exception createException(DataType<DataType> exceptionType, String message, Object faultInfo, Throwable cause) {
+        Class exceptionClass = (Class)exceptionType.getPhysical();
+        DataType<?> faultBeanType = exceptionType.getLogical();
+        Class faultBeanClass = (Class)faultBeanType.getPhysical();
+        try {
+            Constructor constructor =
+                exceptionClass.getConstructor(new Class[] {String.class, faultBeanClass, Throwable.class});
+            return (Exception)constructor.newInstance(new Object[] {message, faultInfo, cause});
+        } catch (Throwable e) {
+            throw new IllegalArgumentException(e);
+        }
+    }
+
+    public Object getFaultInfo(Exception exception) {
+        if (exception == null) {
+            return null;
+        }
+        try {
+            Method method = exception.getClass().getMethod("getFaultInfo", EMPTY_CLASS_ARRAY);
+            return method.invoke(exception, (Object[])null);
+        } catch (Throwable e) {
+            throw new IllegalArgumentException(e);
+        }
+    }
+
+    public DataType<?> getFaultType(DataType exceptionDataType) {
+        Class exceptionType = (Class) exceptionDataType.getPhysical();
+        Class faultBeanClass = null;
+        try {
+            Method method = exceptionType.getMethod("getFaultInfo", EMPTY_CLASS_ARRAY);
+            faultBeanClass = method.getReturnType();
+        } catch (NoSuchMethodException e) {
+            faultBeanClass = null;
+        }
+        if (faultBeanClass == null) {
+            return null;
+        }
+
+        QName faultElement = null;
+        try {
+            Field field = exceptionType.getField("FAULT_ELEMENT");
+            faultElement = (QName)field.get(null);
+        } catch (NoSuchFieldException e) {
+            // Fall back to type inspection
+            Type type = helperContext.getTypeHelper().getType(faultBeanClass);
+            if (type != null) {
+                String ns = type.getURI();
+                String name = helperContext.getXSDHelper().getLocalName(type);
+                faultElement = new QName(ns, name);
+            }
+        } catch (Throwable e) {
+            // Ignore
+        }
+        if (faultElement == null) {
+            return null;
+        }
+        DataType<XMLType> faultType =
+            new DataTypeImpl<XMLType>(SDODataBinding.NAME, faultBeanClass, new XMLType(faultElement, null));
+        return faultType;
+
+    }
+
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDOSimpleTypeMapper.java b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDOSimpleTypeMapper.java
new file mode 100644
index 0000000000..752120c889
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDOSimpleTypeMapper.java
@@ -0,0 +1,67 @@
+/*
+ * 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.databinding.sdo;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.databinding.SimpleTypeMapper;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sdo.util.SDOUtil;
+
+
+import commonj.sdo.Type;
+import commonj.sdo.helper.HelperContext;
+import commonj.sdo.helper.TypeHelper;
+
+/**
+ * SDO Java/XML mapping for simple XSD types
+ */
+public class SDOSimpleTypeMapper implements SimpleTypeMapper {
+    public static final String URI_2001_SCHEMA_XSD = "http://www.w3.org/2001/XMLSchema";
+
+    public SDOSimpleTypeMapper() {
+        super();
+    }
+
+    public Object toJavaObject(QName typeName, String value, TransformationContext context) {
+        Type type = null;
+        if (URI_2001_SCHEMA_XSD.equals(typeName.getNamespaceURI())) {
+            type = SDOUtil.getXSDSDOType(typeName.getLocalPart());
+        } else {
+            HelperContext helperContext = SDOContextHelper.getHelperContext(context);
+            TypeHelper typeHelper = helperContext.getTypeHelper();
+            type = typeHelper.getType(typeName.getNamespaceURI(), typeName.getLocalPart());
+        }
+        return SDOUtil.createFromString(type, value);
+    }
+
+    public String toXMLLiteral(QName typeName, Object obj, TransformationContext context) {
+        Type type = null;
+        if (URI_2001_SCHEMA_XSD.equals(typeName.getNamespaceURI())) {
+            type = SDOUtil.getXSDSDOType(typeName.getLocalPart());
+        } else {
+            HelperContext helperContext = SDOContextHelper.getHelperContext(context);
+            TypeHelper typeHelper = helperContext.getTypeHelper();
+            type = typeHelper.getType(typeName.getNamespaceURI(), typeName.getLocalPart());
+        }
+        return SDOUtil.convertToString(type, obj);
+    }
+
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDOWrapperHandler.java b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDOWrapperHandler.java
new file mode 100644
index 0000000000..d89627da71
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/SDOWrapperHandler.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.databinding.sdo;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.databinding.WrapperHandler;
+import org.apache.tuscany.sca.interfacedef.util.ElementInfo;
+
+import commonj.sdo.DataObject;
+import commonj.sdo.Property;
+import commonj.sdo.Sequence;
+import commonj.sdo.Type;
+import commonj.sdo.helper.DataFactory;
+import commonj.sdo.helper.HelperContext;
+import commonj.sdo.helper.XMLDocument;
+import commonj.sdo.helper.XMLHelper;
+
+/**
+ * SDO Wrapper Handler
+ */
+public class SDOWrapperHandler implements WrapperHandler<Object> {
+
+    /**
+     * @see org.apache.tuscany.sca.databinding.WrapperHandler#create(ElementInfo, TransformationContext)
+     */
+    public Object create(ElementInfo element, TransformationContext context) {
+        HelperContext helperContext = SDOContextHelper.getHelperContext(context);
+        QName typeName = element.getType().getQName();
+        DataFactory dataFactory = helperContext.getDataFactory();
+        DataObject root = dataFactory.create(typeName.getNamespaceURI(), typeName.getLocalPart());
+        XMLHelper xmlHelper = helperContext.getXMLHelper();
+        return xmlHelper.createDocument(root, element.getQName().getNamespaceURI(), element.getQName().getLocalPart());
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.databinding.WrapperHandler#setChild(java.lang.Object, int, ElementInfo,
+     *      java.lang.Object)
+     */
+    public void setChild(Object wrapper, int i, ElementInfo childElement, Object value) {
+        DataObject wrapperDO =
+            (wrapper instanceof XMLDocument) ? ((XMLDocument)wrapper).getRootObject() : (DataObject)wrapper;
+        wrapperDO.set(i, value);
+    }
+
+    @SuppressWarnings("unchecked")
+    public List getChildren(Object wrapper) {
+        DataObject wrapperDO =
+            (wrapper instanceof XMLDocument) ? ((XMLDocument)wrapper).getRootObject() : (DataObject)wrapper;
+        List<Property> properties = wrapperDO.getInstanceProperties();
+        List<Object> elements = new ArrayList<Object>();
+        Type type = wrapperDO.getType();
+        if (type.isSequenced()) {
+            // Add values in the sequence
+            Sequence sequence = wrapperDO.getSequence();
+            for (int i = 0; i < sequence.size(); i++) {
+                // Skip mixed text
+                if (sequence.getProperty(i) != null) {
+                    elements.add(sequence.getValue(i));
+                }
+            }
+        } else {
+            for (Property p : properties) {
+                Object child = wrapperDO.get(p);
+                if (p.isMany()) {
+                    for (Object c : (Collection<?>)child) {
+                        elements.add(c);
+                    }
+                } else {
+                    elements.add(child);
+                }
+            }
+        }
+        return elements;
+    }
+
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/String2DataObject.java b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/String2DataObject.java
new file mode 100755
index 0000000000..01ec74bb30
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/String2DataObject.java
@@ -0,0 +1,55 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.databinding.sdo;
+
+import org.apache.tuscany.sca.databinding.PullTransformer;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.databinding.TransformationException;
+import org.apache.tuscany.sca.databinding.impl.BaseTransformer;
+
+import commonj.sdo.DataObject;
+import commonj.sdo.helper.HelperContext;
+import commonj.sdo.helper.XMLHelper;
+
+public class String2DataObject extends BaseTransformer<String, DataObject> implements
+    PullTransformer<String, DataObject> {
+
+    public DataObject transform(String source, TransformationContext context) {
+        try {
+            HelperContext helperContext = SDOContextHelper.getHelperContext(context);
+            XMLHelper xmlHelper = helperContext.getXMLHelper();
+            return xmlHelper.load(source).getRootObject();
+        } catch (Exception e) {
+            throw new TransformationException(e);
+        }
+    }
+
+    public Class getSourceType() {
+        return String.class;
+    }
+
+    public Class getTargetType() {
+        return DataObject.class;
+    }
+
+    public int getWeight() {
+        return 50;
+    }
+
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/XMLDocument2String.java b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/XMLDocument2String.java
new file mode 100644
index 0000000000..d11e6e46d9
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/XMLDocument2String.java
@@ -0,0 +1,59 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.databinding.sdo;
+
+import java.io.StringWriter;
+
+import org.apache.tuscany.sca.databinding.PullTransformer;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.databinding.TransformationException;
+import org.apache.tuscany.sca.databinding.impl.BaseTransformer;
+
+import commonj.sdo.helper.HelperContext;
+import commonj.sdo.helper.XMLDocument;
+import commonj.sdo.helper.XMLHelper;
+
+public class XMLDocument2String extends BaseTransformer<XMLDocument, String> implements
+    PullTransformer<XMLDocument, String> {
+
+    public String transform(XMLDocument source, TransformationContext context) {
+        try {
+            HelperContext helperContext = SDOContextHelper.getHelperContext(context);
+            XMLHelper xmlHelper = helperContext.getXMLHelper();
+            StringWriter writer = new StringWriter();
+            xmlHelper.save(source, writer, null);
+            return writer.toString();
+        } catch (Exception e) {
+            throw new TransformationException(e);
+        }
+    }
+
+    public Class getSourceType() {
+        return XMLDocument.class;
+    }
+
+    public Class getTargetType() {
+        return String.class;
+    }
+
+    public int getWeight() {
+        return 40;
+    }
+
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/XMLDocument2XMLStreamReader.java b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/XMLDocument2XMLStreamReader.java
new file mode 100755
index 0000000000..0ea20bdee3
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/XMLDocument2XMLStreamReader.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.databinding.sdo;
+
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+
+import org.apache.tuscany.sca.databinding.PullTransformer;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.databinding.TransformationException;
+import org.apache.tuscany.sca.databinding.impl.BaseTransformer;
+import org.apache.tuscany.sdo.helper.XMLStreamHelper;
+import org.apache.tuscany.sdo.util.SDOUtil;
+
+
+import commonj.sdo.helper.HelperContext;
+import commonj.sdo.helper.XMLDocument;
+
+public class XMLDocument2XMLStreamReader extends BaseTransformer<XMLDocument, XMLStreamReader> implements
+    PullTransformer<XMLDocument, XMLStreamReader> {
+    /**
+     * @param source
+     * @param context
+     * @return
+     */
+    public XMLStreamReader transform(XMLDocument source, TransformationContext context) {
+        try {
+            HelperContext helperContext = SDOContextHelper.getHelperContext(context);
+            XMLStreamHelper streamHelper = SDOUtil.createXMLStreamHelper(helperContext.getTypeHelper());
+            return streamHelper.createXMLStreamReader(source);
+        } catch (XMLStreamException e) {
+            throw new TransformationException(e);
+        }
+    }
+
+    public Class getSourceType() {
+        return XMLDocument.class;
+    }
+
+    public Class getTargetType() {
+        return XMLStreamReader.class;
+    }
+
+    public int getWeight() {
+        return 10;
+    }
+
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/XMLStreamReader2DataObject.java b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/XMLStreamReader2DataObject.java
new file mode 100755
index 0000000000..8797ed1f28
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/XMLStreamReader2DataObject.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.databinding.sdo;
+
+import javax.xml.stream.XMLStreamConstants;
+import javax.xml.stream.XMLStreamReader;
+
+import org.apache.tuscany.sca.databinding.PullTransformer;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.databinding.TransformationException;
+import org.apache.tuscany.sca.databinding.impl.BaseTransformer;
+import org.apache.tuscany.sdo.helper.XMLStreamHelper;
+import org.apache.tuscany.sdo.util.SDOUtil;
+
+import commonj.sdo.DataObject;
+import commonj.sdo.helper.HelperContext;
+
+public class XMLStreamReader2DataObject extends BaseTransformer<XMLStreamReader, DataObject> implements
+    PullTransformer<XMLStreamReader, DataObject> {
+
+    public DataObject transform(XMLStreamReader source, TransformationContext context) {
+        try {
+            HelperContext helperContext = SDOContextHelper.getHelperContext(context);
+            XMLStreamHelper streamHelper = SDOUtil.createXMLStreamHelper(helperContext.getTypeHelper());
+            // The XMLStreamHelper requires that the reader is posistioned at
+            // START_ELEMENT
+            while (source.getEventType() != XMLStreamConstants.START_ELEMENT && source.hasNext()) {
+                source.next();
+            }
+            return streamHelper.loadObject(source);
+        } catch (Exception e) {
+            throw new TransformationException(e);
+        }
+    }
+
+    public Class getTargetType() {
+        return DataObject.class;
+    }
+
+    public Class getSourceType() {
+        return XMLStreamReader.class;
+    }
+
+    public int getWeight() {
+        return 15;
+    }
+
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/XMLStreamReader2XMLDocument.java b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/XMLStreamReader2XMLDocument.java
new file mode 100755
index 0000000000..759da7c4ab
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/XMLStreamReader2XMLDocument.java
@@ -0,0 +1,59 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.databinding.sdo;
+
+import javax.xml.stream.XMLStreamReader;
+
+import org.apache.tuscany.sca.databinding.PullTransformer;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.databinding.TransformationException;
+import org.apache.tuscany.sca.databinding.impl.BaseTransformer;
+import org.apache.tuscany.sdo.helper.XMLStreamHelper;
+import org.apache.tuscany.sdo.util.SDOUtil;
+
+
+import commonj.sdo.helper.HelperContext;
+import commonj.sdo.helper.XMLDocument;
+
+public class XMLStreamReader2XMLDocument extends BaseTransformer<XMLStreamReader, XMLDocument> implements
+    PullTransformer<XMLStreamReader, XMLDocument> {
+
+    public XMLDocument transform(XMLStreamReader source, TransformationContext context) {
+        try {
+            HelperContext helperContext = SDOContextHelper.getHelperContext(context);
+            XMLStreamHelper streamHelper = SDOUtil.createXMLStreamHelper(helperContext.getTypeHelper());
+            return streamHelper.load(source);
+        } catch (Exception e) {
+            throw new TransformationException(e);
+        }
+    }
+
+    public Class getTargetType() {
+        return XMLDocument.class;
+    }
+
+    public Class getSourceType() {
+        return XMLStreamReader.class;
+    }
+
+    public int getWeight() {
+        return 15;
+    }
+
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/api/HelperContext.java b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/api/HelperContext.java
new file mode 100644
index 0000000000..9b6beead14
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/api/HelperContext.java
@@ -0,0 +1,37 @@
+/*
+ * 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.databinding.sdo.api;
+
+import static java.lang.annotation.ElementType.FIELD;
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+/**
+ * This annotation can be used by component implementation class to receive the
+ * SDO HelperContext.
+ * 
+ * @version $Rev$ $Date$
+ */
+@Target({METHOD, FIELD})
+@Retention(RUNTIME)
+public @interface HelperContext {
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/module/SDODataBindingModuleActivator.java b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/module/SDODataBindingModuleActivator.java
new file mode 100644
index 0000000000..4f6caa6ec0
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo/src/main/java/org/apache/tuscany/sca/databinding/sdo/module/SDODataBindingModuleActivator.java
@@ -0,0 +1,80 @@
+/*
+ * 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.databinding.sdo.module;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessorExtensionPoint;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.ModelFactoryExtensionPoint;
+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.sdo.DataObject2String;
+import org.apache.tuscany.sca.databinding.sdo.DataObject2XMLStreamReader;
+import org.apache.tuscany.sca.databinding.sdo.HelperContextProcessor;
+import org.apache.tuscany.sca.databinding.sdo.HelperContextRegistry;
+import org.apache.tuscany.sca.databinding.sdo.HelperContextRegistryImpl;
+import org.apache.tuscany.sca.databinding.sdo.ImportSDOProcessor;
+import org.apache.tuscany.sca.databinding.sdo.SDODataBinding;
+import org.apache.tuscany.sca.databinding.sdo.String2DataObject;
+import org.apache.tuscany.sca.databinding.sdo.XMLDocument2String;
+import org.apache.tuscany.sca.databinding.sdo.XMLDocument2XMLStreamReader;
+import org.apache.tuscany.sca.databinding.sdo.XMLStreamReader2DataObject;
+import org.apache.tuscany.sca.databinding.sdo.XMLStreamReader2XMLDocument;
+import org.apache.tuscany.sca.implementation.java.introspect.JavaClassIntrospectorExtensionPoint;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class SDODataBindingModuleActivator implements ModuleActivator {
+
+    public Object[] getExtensionPoints() {
+        return null;
+    }
+
+    public void start(ExtensionPointRegistry registry) {
+        ModelFactoryExtensionPoint factories = registry.getExtensionPoint(ModelFactoryExtensionPoint.class);
+        AssemblyFactory assemblyFactory = factories.getFactory(AssemblyFactory.class);
+        
+        DataBindingExtensionPoint dataBindings = registry.getExtensionPoint(DataBindingExtensionPoint.class);
+        dataBindings.addDataBinding(new SDODataBinding());
+
+        StAXArtifactProcessorExtensionPoint processors = registry.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class);
+        HelperContextRegistry contextRegistry = new HelperContextRegistryImpl();
+        processors.addArtifactProcessor(new ImportSDOProcessor(contextRegistry));
+
+        TransformerExtensionPoint transformers = registry.getExtensionPoint(TransformerExtensionPoint.class);
+        transformers.addTransformer(new DataObject2String());
+        transformers.addTransformer(new DataObject2XMLStreamReader());
+        transformers.addTransformer(new XMLDocument2String());
+        transformers.addTransformer(new String2DataObject());
+        transformers.addTransformer(new XMLDocument2XMLStreamReader());
+        transformers.addTransformer(new XMLStreamReader2DataObject());
+        transformers.addTransformer(new XMLStreamReader2XMLDocument());
+        
+        JavaClassIntrospectorExtensionPoint introspectors = registry.getExtensionPoint(JavaClassIntrospectorExtensionPoint.class);
+        introspectors.addClassVisitor(new HelperContextProcessor(assemblyFactory, contextRegistry));
+
+    }
+
+    public void stop(ExtensionPointRegistry registry) {
+    }
+
+}