Create 2.0 M4 release branch

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@830484 13f79535-47bb-0310-9956-ffa450edef68

14 files changed, 1693 insertions, 0 deletions

diff --git a/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/AxiomHelper.java b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/AxiomHelper.java
new file mode 100644
index 0000000000..93277e77bf
--- /dev/null
+++ b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/AxiomHelper.java
@@ -0,0 +1,140 @@
+/*
+ * 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.jaxb.axiom;
+
+import javax.xml.namespace.QName;
+
+import org.apache.axiom.om.OMAbstractFactory;
+import org.apache.axiom.om.OMDataSource;
+import org.apache.axiom.om.OMElement;
+import org.apache.axiom.om.OMFactory;
+import org.apache.axiom.om.OMNamespace;
+import org.apache.axiom.om.OMXMLParserWrapper;
+import org.apache.axiom.om.impl.builder.StAXBuilder;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.util.XMLType;
+
+/**
+ * Helper for AXIOM
+ * 
+ * @version $Rev$ $Date$
+ */
+public class AxiomHelper {
+    private static final String DEFAULT_PREFIX = "_ns_";
+
+    private AxiomHelper() {
+    }
+
+    /**
+     * See http://issues.apache.org/jira/browse/WSCOMMONS-240
+     * @param om
+     */
+    public static void completeAndClose(OMElement om) {
+        // Get the builder associated with the om element
+        OMXMLParserWrapper builder = om.getBuilder();
+        if (builder != null) {
+            if (builder instanceof StAXBuilder) {
+                ((StAXBuilder)builder).releaseParserOnClose(true);
+            }
+            OMElement document = builder.getDocumentElement();
+            if (document != null) {
+                document.build();
+            }
+        }
+        if (builder instanceof StAXBuilder) {
+            ((StAXBuilder)builder).close();
+        }
+    }
+
+    /**
+     * This method will close the builder immediately.  Any subsequent Axiom objects won't 
+     * be built or accessible.
+     */
+    public static void closeImmediately(OMElement om) {
+        // Get the builder associated with the om element
+        OMXMLParserWrapper builder = om.getBuilder();
+        if (builder != null) {
+            if (builder instanceof StAXBuilder) {
+                ((StAXBuilder)builder).releaseParserOnClose(true);
+                ((StAXBuilder)builder).close();
+            }
+            // builder.close();
+        }
+    }
+
+    /**
+     * @param context
+     * @param element
+     */
+    public static void adjustElementName(TransformationContext context, OMElement element) {
+        if (context != null) {
+            DataType<?> dataType = context.getTargetDataType();
+            Object logical = dataType == null ? null : dataType.getLogical();
+            if (!(logical instanceof XMLType)) {
+                return;
+            }
+            XMLType xmlType = (XMLType)logical;
+            if (xmlType.isElement() && !xmlType.getElementName().equals(element.getQName())) {
+                // FIXME:: Throw exception or switch to the new Element?
+                OMFactory factory = OMAbstractFactory.getOMFactory();
+                QName name = xmlType.getElementName();
+                OMNamespace namespace = factory.createOMNamespace(name.getNamespaceURI(), name.getPrefix());
+                element.setNamespace(namespace);
+                element.setLocalName(name.getLocalPart());
+            }
+        }
+    }
+
+    public static OMElement createOMElement(OMFactory factory, QName element) {
+        String localName = element.getLocalPart();
+        OMNamespace ns = createOMNamespace(factory, element);
+
+        return factory.createOMElement(localName, ns);
+
+    }
+
+    public static OMElement createOMElement(OMFactory factory, QName element, OMDataSource dataSource) {
+        String localName = element.getLocalPart();
+        OMNamespace ns = createOMNamespace(factory, element);
+
+        return factory.createOMElement(dataSource, localName, ns);
+
+    }
+
+    /**
+     * @param factory
+     * @param name
+     * @return
+     */
+    public static OMNamespace createOMNamespace(OMFactory factory, QName name) {
+        String namespaceURI = name.getNamespaceURI();
+        String prefix = name.getPrefix();
+
+        OMNamespace ns = null;
+        // Qualified Element: we need an OMNamespace         
+        if (prefix.length() == 0) {
+            // The prefix does not appear to be specified, let's create one
+            prefix = DEFAULT_PREFIX;
+        }
+        ns = factory.createOMNamespace(namespaceURI, prefix);
+        return ns;
+    }
+}
diff --git a/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/JAXB2OMElement.java b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/JAXB2OMElement.java
new file mode 100644
index 0000000000..e0e0c08f6c
--- /dev/null
+++ b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/JAXB2OMElement.java
@@ -0,0 +1,81 @@
+/*
+ * 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.jaxb.axiom;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.JAXBException;
+import javax.xml.namespace.QName;
+
+import org.apache.axiom.om.OMAbstractFactory;
+import org.apache.axiom.om.OMElement;
+import org.apache.axiom.om.OMFactory;
+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.sca.databinding.jaxb.JAXBContextHelper;
+import org.apache.tuscany.sca.databinding.jaxb.JAXBDataBinding;
+
+/**
+ * JAXB Object --> AXIOM OMElement transformer
+ *
+ * @version $Rev$ $Date$
+ */
+public class JAXB2OMElement extends BaseTransformer<Object, OMElement> implements PullTransformer<Object, OMElement> {
+    public JAXB2OMElement() {
+        super();
+    }
+
+    private OMFactory factory = OMAbstractFactory.getOMFactory();
+
+    @Override
+    public String getSourceDataBinding() {
+        return JAXBDataBinding.NAME;
+    }
+
+    public OMElement transform(Object source, TransformationContext context) throws TransformationException {
+        JAXBContext jaxbContext;
+        try {
+            jaxbContext = JAXBContextHelper.createJAXBContext(context, true);
+        } catch (JAXBException e) {
+            throw new TransformationException(e);
+        }
+        Object element = JAXBContextHelper.createJAXBElement(jaxbContext, context.getTargetDataType(), source);
+        QName name = jaxbContext.createJAXBIntrospector().getElementName(element);
+        JAXBDataSource dataSource = new JAXBDataSource(element, jaxbContext);
+        OMElement omElement = AxiomHelper.createOMElement(factory, name, dataSource);
+        return omElement;
+    }
+
+    @Override
+    public Class<Object> getSourceType() {
+        return Object.class;
+    }
+
+    @Override
+    public Class<OMElement> getTargetType() {
+        return OMElement.class;
+    }
+
+    @Override
+    public int getWeight() {
+        return 3000;
+    }
+
+}
diff --git a/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/JAXBDataSource.java b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/JAXBDataSource.java
new file mode 100644
index 0000000000..cc28d5e710
--- /dev/null
+++ b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/JAXBDataSource.java
@@ -0,0 +1,129 @@
+/*
+ * 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.jaxb.axiom;
+
+import static org.apache.tuscany.sca.databinding.jaxb.JAXBContextHelper.getMarshaller;
+import static org.apache.tuscany.sca.databinding.jaxb.JAXBContextHelper.releaseJAXBMarshaller;
+
+import java.io.OutputStream;
+import java.io.StringReader;
+import java.io.StringWriter;
+import java.io.Writer;
+import java.security.AccessController;
+import java.security.PrivilegedActionException;
+import java.security.PrivilegedExceptionAction;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.Marshaller;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.axiom.om.OMDataSource;
+import org.apache.axiom.om.OMOutputFormat;
+import org.apache.axiom.om.util.StAXUtils;
+
+/**
+ *
+ * @version $Rev$ $Date$
+ */
+public class JAXBDataSource implements OMDataSource {
+    private JAXBContext context;
+    private Object element;
+    // private Marshaller marshaller;
+
+    public JAXBDataSource(Object element, JAXBContext context) {
+        this.element = element;
+        this.context = context;
+    }
+
+    public XMLStreamReader getReader() throws XMLStreamException {
+        // FIXME: [rfeng] This is a quick and dirty implementation
+        // We could use the fastinfoset to optimize the roundtrip
+        StringWriter writer = new StringWriter();
+        serialize(writer, new OMOutputFormat());
+        StringReader reader = new StringReader(writer.toString());
+        // FIXME: We need to use Tuscany extension point to create the reader
+        return StAXUtils.createXMLStreamReader(reader);
+    }
+
+    public void serialize(final XMLStreamWriter xmlWriter) throws XMLStreamException {
+        try {
+            // marshaller.setProperty(Marshaller.JAXB_ENCODING, format.getCharSetEncoding());
+            AccessController.doPrivileged(new PrivilegedExceptionAction<Object>() {
+                public Object run() throws Exception {
+                    Marshaller marshaller = null;
+                    try {
+                        marshaller = getMarshaller(context);
+                        marshaller.marshal(element, xmlWriter);
+                    } finally {
+                        releaseJAXBMarshaller(context, marshaller);
+                    }
+                    return null;
+                }
+            });
+        } catch (PrivilegedActionException e) {
+            throw new XMLStreamException(e.getException());
+        }
+    }
+
+    public void serialize(final OutputStream output, OMOutputFormat format) throws XMLStreamException {
+        try {
+            // marshaller.setProperty(Marshaller.JAXB_ENCODING, format.getCharSetEncoding());
+            AccessController.doPrivileged(new PrivilegedExceptionAction<Object>() {
+                public Object run() throws Exception {
+                    Marshaller marshaller = null;
+                    try {
+                        marshaller = getMarshaller(context);
+                        marshaller.marshal(element, output);
+                    } finally {
+                        releaseJAXBMarshaller(context, marshaller);
+                    }
+                    return null;
+                }
+            });
+        } catch (PrivilegedActionException e) {
+            throw new XMLStreamException(e.getException());
+        }
+    }
+
+    public void serialize(final Writer writer, OMOutputFormat format) throws XMLStreamException {
+        try {
+            AccessController.doPrivileged(new PrivilegedExceptionAction<Object>() {
+                public Object run() throws Exception {
+                    Marshaller marshaller = null;
+                    try {
+                        marshaller = getMarshaller(context);
+                        marshaller.marshal(element, writer);
+                    } finally {
+                        releaseJAXBMarshaller(context, marshaller);
+                    }
+                    return null;
+                }
+            });
+        } catch (PrivilegedActionException e) {
+            throw new XMLStreamException(e.getException());
+        }
+    }
+
+    public Object getObject() {
+        return element;
+    }
+
+}
diff --git a/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/OMElement2JAXB.java b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/OMElement2JAXB.java
new file mode 100644
index 0000000000..8e9b32cfc0
--- /dev/null
+++ b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/OMElement2JAXB.java
@@ -0,0 +1,100 @@
+/*
+ * 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.jaxb.axiom;
+
+import java.security.AccessController;
+import java.security.PrivilegedActionException;
+import java.security.PrivilegedExceptionAction;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.JAXBException;
+import javax.xml.bind.Unmarshaller;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.util.StreamReaderDelegate;
+
+import org.apache.axiom.om.OMElement;
+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.sca.databinding.jaxb.JAXBContextHelper;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class OMElement2JAXB extends BaseTransformer<OMElement, Object> implements PullTransformer<OMElement, Object> {
+
+    @Override
+    public String getSourceDataBinding() {
+        return org.apache.axiom.om.OMElement.class.getName();
+    }
+
+    public Object transform(final OMElement source, final TransformationContext context) throws TransformationException {
+        try {
+            return AccessController.doPrivileged(new PrivilegedExceptionAction<Object>() {
+                public Object run() throws JAXBException, XMLStreamException {
+                    Unmarshaller unmarshaller = null;
+                    XMLStreamReader reader = null;
+                    Object result = null;
+                    // Marshalling directly to the output stream is faster than marshalling through the
+                    // XMLStreamWriter. 
+                    // Take advantage of this optimization if there is an output stream.
+                    JAXBContext jaxbContext = JAXBContextHelper.createJAXBContext(context, false);
+                    try {
+                        unmarshaller = JAXBContextHelper.getUnmarshaller(jaxbContext);
+                        reader = source.getXMLStreamReaderWithoutCaching();
+                        // https://issues.apache.org/jira/browse/WSCOMMONS-395
+                        reader = new StreamReaderDelegate(reader) {
+                            // Fix the issue in WSCOMMONS-395
+                            public String getAttributeType(int index) {
+                                String type = super.getAttributeType(index);
+                                return type == null ? "CDATA" : type;
+                            }
+                        };
+                        result = unmarshaller.unmarshal(reader, JAXBContextHelper.getJavaType(context.getTargetDataType()));
+                    } finally {
+                        if (reader != null) {
+                            reader.close();
+                        }
+                        JAXBContextHelper.releaseJAXBUnmarshaller(jaxbContext, unmarshaller);
+                    }
+                    return JAXBContextHelper.createReturnValue(jaxbContext, context.getTargetDataType(), result);
+                }
+            });
+        } catch (PrivilegedActionException e) {
+            throw new TransformationException(e.getException());
+        }
+    }
+
+    @Override
+    public Class<OMElement> getSourceType() {
+        return OMElement.class;
+    }
+
+    @Override
+    public Class<Object> getTargetType() {
+        return Object.class;
+    }
+
+    @Override
+    public int getWeight() {
+        return 3000;
+    }
+}
diff --git a/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/JAXBCustomBuilder.java b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/JAXBCustomBuilder.java
new file mode 100644
index 0000000000..f30a6c1cb8
--- /dev/null
+++ b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/JAXBCustomBuilder.java
@@ -0,0 +1,114 @@
+/*
+ * 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.jaxb.axiom.ext;
+
+import javax.xml.bind.JAXBException;
+import javax.xml.stream.XMLStreamReader;
+
+import org.apache.axiom.om.OMContainer;
+import org.apache.axiom.om.OMDataSource;
+import org.apache.axiom.om.OMElement;
+import org.apache.axiom.om.OMException;
+import org.apache.axiom.om.OMFactory;
+import org.apache.axiom.om.OMNamespace;
+import org.apache.axiom.om.impl.builder.CustomBuilder;
+
+/**
+ * JAXBCustomBuilder creates an OMSourcedElement backed by a JAXBDataSource
+ * for the specified namespace and localPart.
+ */
+public class JAXBCustomBuilder implements CustomBuilder {
+
+    private JAXBDSContext jdsContext;
+
+    /**
+     * Create a JAXBCustomBuilder
+     * @param context JAXBDSContext
+     */
+    public JAXBCustomBuilder(JAXBDSContext context) {
+        super();
+        this.jdsContext = context;
+    }
+
+    public OMElement create(String namespace,
+                            String localPart,
+                            OMContainer parent,
+                            XMLStreamReader reader,
+                            OMFactory factory) throws OMException {
+
+        // There are some situations where we want to use normal
+        // unmarshalling, so return null
+        if (!shouldUnmarshal(namespace, localPart)) {
+            // JAXBCustomBuilderMonitor.updateTotalFailedCreates();
+            return null;
+        }
+        try {
+            // Create an OMSourcedElement backed by an unmarshalled JAXB object
+            OMNamespace ns = factory.createOMNamespace(namespace, reader.getPrefix());
+
+            Object jaxb = jdsContext.unmarshal(reader);
+
+            OMDataSource ds = new JAXBDataSourceExt(jaxb, jdsContext);
+            OMElement omse = factory.createOMElement(ds, localPart, ns);
+
+            parent.addChild(omse);
+            // JAXBCustomBuilderMonitor.updateTotalCreates();
+            return omse;
+        } catch (JAXBException e) {
+            // JAXBCustomBuilderMonitor.updateTotalFailedCreates();
+            throw new OMException(e);
+        }
+    }
+
+    /**
+     * The namespace identifier for the SOAP 1.1 envelope.
+     */
+    public static final String URI_NS_SOAP_1_1_ENVELOPE = "http://schemas.xmlsoap.org/soap/envelope/";
+    /**
+     * The namespace identifier for the SOAP 1.2 envelope.
+     */
+    public static final String URI_NS_SOAP_1_2_ENVELOPE = "http://www.w3.org/2003/05/soap-envelope";
+
+    /**
+     * @param namespace
+     * @param localPart
+     * @return true if this ns and local part is acceptable for unmarshalling
+     */
+    private boolean shouldUnmarshal(String namespace, String localPart) {
+
+        // Don't unmarshall SOAPFaults or anything else in the SOAP 
+        // namespace.
+        // Don't unmarshall elements that are unqualified
+        if (localPart == null || namespace == null
+            || namespace.length() == 0
+            || URI_NS_SOAP_1_1_ENVELOPE.equals(namespace)
+            || URI_NS_SOAP_1_2_ENVELOPE.equals(namespace)) {
+            return false;
+        }
+
+        // Don't unmarshal if this looks like encrypted data
+        if (localPart.equals("EncryptedData")) {
+            return false;
+        }
+
+        return true;
+
+    }
+}
diff --git a/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/JAXBDSContext.java b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/JAXBDSContext.java
new file mode 100644
index 0000000000..28997cd244
--- /dev/null
+++ b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/JAXBDSContext.java
@@ -0,0 +1,189 @@
+/*
+ * 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.jaxb.axiom.ext;
+
+import java.io.OutputStream;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.JAXBException;
+import javax.xml.bind.Marshaller;
+import javax.xml.bind.Unmarshaller;
+import javax.xml.bind.attachment.AttachmentMarshaller;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.axiom.om.OMException;
+import org.apache.axiom.om.impl.MTOMXMLStreamWriter;
+import org.apache.tuscany.sca.databinding.jaxb.JAXBContextHelper;
+
+/*
+ * To marshal or unmarshal a JAXB object, the JAXBContext is necessary.
+ * In addition, access to the MessageContext and other context objects may be necessary
+ * to get classloader information, store attachments etc.
+ * 
+ * The JAXBDSContext bundles all of this information together.
+ */
+public class JAXBDSContext {
+
+    private static final Logger log = Logger.getLogger(JAXBDSContext.class.getName());
+    private static final boolean DEBUG_ENABLED = log.isLoggable(Level.FINER);
+
+    private JAXBContext jaxbContext = null; // JAXBContext
+
+    /**
+     * "Dispatch" Constructor Use this full constructor when the JAXBContent is provided by the
+     * customer.
+     *
+     * @param jaxbContext
+     */
+    public JAXBDSContext(JAXBContext jaxbContext) {
+        this.jaxbContext = jaxbContext;
+    }
+
+    public JAXBContext getJAXBContext() {
+        return jaxbContext;
+    }
+
+    /**
+     * Unmarshal the xml into a JAXB object
+     * @param reader
+     * @return
+     * @throws JAXBException
+     */
+    public Object unmarshal(XMLStreamReader reader) throws JAXBException {
+
+        Unmarshaller u = JAXBContextHelper.getUnmarshaller(getJAXBContext());
+
+        Object jaxb = null;
+
+        // Unmarshal into the business object.
+        jaxb = unmarshalElement(u, reader); // preferred and always used for
+        // style=document
+
+        // Successfully unmarshalled the object
+        // JAXBUtils.releaseJAXBUnmarshaller(getJAXBContext(cl), u);
+
+        // Don't close the reader.  The reader is owned by the caller, and it
+        // may contain other xml instance data (other than this JAXB object)
+        // reader.close();
+        return jaxb;
+    }
+
+    /**
+     * Marshal the jaxb object
+     * @param obj
+     * @param writer
+     * @param am AttachmentMarshaller, optional Attachment
+     */
+    public void marshal(Object obj, XMLStreamWriter writer) throws JAXBException {
+
+        // Very easy, use the Context to get the Marshaller.
+        // Use the marshaller to write the object.
+        Marshaller m = JAXBContextHelper.getMarshaller(getJAXBContext());
+        AttachmentMarshaller am = m.getAttachmentMarshaller();
+        boolean xop = am != null ? am.isXOPPackage() : false;
+        // Marshal the object
+        marshalElement(obj, m, writer, !xop);
+    }
+
+    /**
+     * Preferred way to marshal objects.
+     * 
+     * @param b Object that can be rendered as an element and the element name is known by the
+     * Marshaller
+     * @param m Marshaller
+     * @param writer XMLStreamWriter
+     */
+    private static void marshalElement(final Object b,
+                                       final Marshaller m,
+                                       final XMLStreamWriter writer,
+                                       final boolean optimize) {
+        AccessController.doPrivileged(new PrivilegedAction<Object>() {
+            public Object run() {
+                // Marshalling directly to the output stream is faster than marshalling through the
+                // XMLStreamWriter. 
+                // Take advantage of this optimization if there is an output stream.
+                try {
+                    OutputStream os = (optimize) ? getOutputStream(writer) : null;
+                    if (os != null) {
+                        writer.flush();
+                        m.marshal(b, os);
+                    } else {
+                        m.marshal(b, writer);
+                    }
+                } catch (OMException e) {
+                    throw e;
+                } catch (Throwable t) {
+                    throw new OMException(t);
+                }
+                return null;
+            }
+        });
+    }
+
+    /**
+     * If the writer is backed by an OutputStream, then return the OutputStream
+     * @param writer
+     * @return OutputStream or null
+     */
+    private static OutputStream getOutputStream(XMLStreamWriter writer) throws XMLStreamException {
+        if (writer.getClass() == MTOMXMLStreamWriter.class) {
+            return ((MTOMXMLStreamWriter)writer).getOutputStream();
+        }
+        if (writer.getClass() == XMLStreamWriterWithOS.class) {
+            return ((XMLStreamWriterWithOS)writer).getOutputStream();
+        }
+        return null;
+    }
+
+    /**
+     * Preferred way to unmarshal objects
+     * 
+     * @param u Unmarshaller
+     * @param reader XMLStreamReader
+     * @return Object that represents an element
+     */
+    private static Object unmarshalElement(final Unmarshaller u, final XMLStreamReader reader) {
+        try {
+            return AccessController.doPrivileged(new PrivilegedAction<Object>() {
+                public Object run() {
+                    try {
+                        return u.unmarshal(reader);
+                    } catch (OMException e) {
+                        throw e;
+                    } catch (Throwable t) {
+                        throw new OMException(t);
+                    }
+                }
+            });
+
+        } catch (OMException e) {
+            throw e;
+        } catch (Throwable t) {
+            throw new OMException(t);
+        }
+    }
+
+}
diff --git a/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/JAXBDataSourceExt.java b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/JAXBDataSourceExt.java
new file mode 100644
index 0000000000..5a5afc13cb
--- /dev/null
+++ b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/JAXBDataSourceExt.java
@@ -0,0 +1,144 @@
+/*
+ * 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.jaxb.axiom.ext;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.UnsupportedEncodingException;
+import java.io.Writer;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import javax.xml.bind.JAXBException;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.axiom.om.OMDataSourceExt;
+import org.apache.axiom.om.OMException;
+import org.apache.axiom.om.OMOutputFormat;
+import org.apache.axiom.om.ds.OMDataSourceExtBase;
+import org.apache.axiom.om.impl.MTOMXMLStreamWriter;
+import org.apache.axiom.om.util.StAXUtils;
+
+/**
+ * OMDataSource backed by a jaxb object
+ */
+public class JAXBDataSourceExt extends OMDataSourceExtBase {
+
+    private static final Logger log = Logger.getLogger(JAXBDataSourceExt.class.getName());
+
+    private Object jaxb;
+    private JAXBDSContext context;
+
+    public JAXBDataSourceExt(Object jaxb, JAXBDSContext context) {
+        super();
+        this.jaxb = jaxb;
+        this.context = context;
+    }
+
+    public void close() {
+    }
+
+    public OMDataSourceExt copy() {
+        return new JAXBDataSourceExt(jaxb, context);
+    }
+
+    public Object getObject() {
+        return jaxb;
+    }
+
+    public JAXBDSContext getContext() {
+        return context;
+    }
+
+    public XMLStreamReader getReader() throws XMLStreamException {
+
+        try {
+            String encoding = "utf-8";
+            InputStream is = new ByteArrayInputStream(getXMLBytes(encoding));
+            return StAXUtils.createXMLStreamReader(is, encoding);
+        } catch (UnsupportedEncodingException e) {
+            throw new XMLStreamException(e);
+        }
+    }
+
+    public void serialize(OutputStream output, OMOutputFormat format) throws XMLStreamException {
+        MTOMXMLStreamWriter writer = new MTOMXMLStreamWriter(output, format);
+        serialize(writer);
+        writer.flush();
+        try {
+            writer.close();
+        } catch (XMLStreamException e) {
+            // An exception can occur if nothing is written to the 
+            // writer.  This is possible if the underlying data source
+            // writers to the output stream directly.
+            if (log.isLoggable(Level.FINER)) {
+                log.finer("Catching and swallowing exception " + e);
+            }
+        }
+    }
+
+    public void serialize(Writer writerTarget, OMOutputFormat format) throws XMLStreamException {
+        MTOMXMLStreamWriter writer = new MTOMXMLStreamWriter(StAXUtils.createXMLStreamWriter(writerTarget));
+        writer.setOutputFormat(format);
+        serialize(writer);
+        writer.flush();
+        writer.close();
+    }
+
+    public void serialize(XMLStreamWriter xmlWriter) throws XMLStreamException {
+        try {
+            context.marshal(jaxb, xmlWriter);
+        } catch (JAXBException je) {
+            throw new XMLStreamException(je);
+        }
+    }
+
+    public byte[] getXMLBytes(String encoding) throws UnsupportedEncodingException {
+        try {
+            ByteArrayOutputStream baos = new ByteArrayOutputStream();
+
+            // Exposes getOutputStream, which allows faster writes.
+            XMLStreamWriterWithOS writer = new XMLStreamWriterWithOS(baos, encoding);
+
+            // Write the business object to the writer
+            serialize(writer);
+
+            // Flush the writer
+            writer.flush();
+            writer.close();
+            return baos.toByteArray();
+        } catch (XMLStreamException e) {
+            throw new OMException(e);
+        }
+    }
+
+    public boolean isDestructiveRead() {
+        return false;
+    }
+
+    public boolean isDestructiveWrite() {
+        return false;
+    }
+
+}
diff --git a/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/SourceDataSource.java b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/SourceDataSource.java
new file mode 100644
index 0000000000..0a12654524
--- /dev/null
+++ b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/SourceDataSource.java
@@ -0,0 +1,123 @@
+/*
+ * 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.jaxb.axiom.ext;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.UnsupportedEncodingException;
+
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.transform.Result;
+import javax.xml.transform.Source;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.stream.StreamResult;
+import javax.xml.transform.stream.StreamSource;
+
+import org.apache.axiom.om.OMDataSourceExt;
+import org.apache.axiom.om.OMException;
+import org.apache.axiom.om.ds.OMDataSourceExtBase;
+import org.apache.axiom.om.util.StAXUtils;
+
+/**
+ * OMDataSource backed by a source
+ */
+public class SourceDataSource extends OMDataSourceExtBase {
+    private Source data;
+
+    public SourceDataSource(Source data) {
+        super();
+        this.data = data;
+    }
+
+    public void close() {
+    }
+
+    public OMDataSourceExt copy() {
+        return new SourceDataSource(data);
+    }
+
+    public Object getObject() {
+        return data;
+    }
+
+    public XMLStreamReader getReader() throws XMLStreamException {
+
+        try {
+            String encoding = "UTF-8";
+            InputStream is = new ByteArrayInputStream(getXMLBytes(encoding));
+            return StAXUtils.createXMLStreamReader(is, encoding);
+        } catch (UnsupportedEncodingException e) {
+            throw new XMLStreamException(e);
+        }
+    }
+
+    public byte[] getXMLBytes(String encoding) throws UnsupportedEncodingException {
+        byte[] bytes = null;
+        try {
+            bytes = (byte[])null;
+
+            if (data instanceof StreamSource) {
+                InputStream is = ((StreamSource)data).getInputStream();
+                if (is != null) {
+                    bytes = getBytesFromStream(is);
+                }
+            } else {
+                ByteArrayOutputStream out = new ByteArrayOutputStream();
+                Result result = new StreamResult(out);
+                Transformer transformer = TransformerFactory.newInstance().newTransformer();
+                transformer.transform(data, result);
+                bytes = out.toByteArray();
+            }
+        } catch (OMException e) {
+            throw e;
+        } catch (UnsupportedEncodingException e) {
+            throw e;
+        } catch (Throwable e) {
+            throw new OMException(e);
+        }
+
+        return bytes;
+    }
+
+    public boolean isDestructiveRead() {
+        return false;
+    }
+
+    public boolean isDestructiveWrite() {
+        return false;
+    }
+
+    private static byte[] getBytesFromStream(InputStream is) throws IOException {
+        ByteArrayOutputStream bos = new ByteArrayOutputStream();
+        byte[] buf = new byte[4096];
+        while (true) {
+            int size = is.read(buf);
+            if (size < 0) {
+                break;
+            }
+            bos.write(buf, 0, size);
+        }
+        return bos.toByteArray();
+    }
+}
diff --git a/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/XMLStreamWriterWithOS.java b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/XMLStreamWriterWithOS.java
new file mode 100644
index 0000000000..44e34c3647
--- /dev/null
+++ b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/XMLStreamWriterWithOS.java
@@ -0,0 +1,246 @@
+/*
+ * 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.jaxb.axiom.ext;
+
+import java.io.OutputStream;
+
+import javax.xml.namespace.NamespaceContext;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.axiom.om.util.StAXUtils;
+
+/**
+ * XMLStreamReader that exposes direct access to the OutputStream.
+ * Writing to the output stream is faster in some cases.
+ */
+public class XMLStreamWriterWithOS implements XMLStreamWriter {
+    private XMLStreamWriter writer;
+    private String charSetEncoding;
+    private OutputStream os;
+
+    public XMLStreamWriterWithOS(OutputStream os, String charSetEncoding) throws XMLStreamException {
+        super();
+        writer = null; // Writer is created when needed
+        this.os = os;
+        this.charSetEncoding = charSetEncoding;
+    }
+
+    /**
+     * The writer is created lazily. 
+     * If only the output stream is used, then the writer is never created.
+     */
+    private void createWriter() throws XMLStreamException {
+        if (writer == null) {
+            writer = StAXUtils.createXMLStreamWriter(os, charSetEncoding);
+        }
+    }
+
+    public void close() throws XMLStreamException {
+        if (writer != null) {
+            writer.close();
+        }
+    }
+
+    public void flush() throws XMLStreamException {
+        if (writer != null) {
+            writer.flush();
+        }
+    }
+
+    public NamespaceContext getNamespaceContext() {
+        try {
+            createWriter();
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+        return writer.getNamespaceContext();
+    }
+
+    public String getPrefix(String arg0) throws XMLStreamException {
+        createWriter();
+        return writer.getPrefix(arg0);
+    }
+
+    public Object getProperty(String arg0) throws IllegalArgumentException {
+        try {
+            createWriter();
+        } catch (XMLStreamException e) {
+            throw new IllegalArgumentException(e);
+        }
+        return writer.getProperty(arg0);
+    }
+
+    public void setDefaultNamespace(String arg0) throws XMLStreamException {
+        createWriter();
+        writer.setDefaultNamespace(arg0);
+    }
+
+    public void setNamespaceContext(NamespaceContext arg0) throws XMLStreamException {
+        createWriter();
+        writer.setNamespaceContext(arg0);
+    }
+
+    public void setPrefix(String arg0, String arg1) throws XMLStreamException {
+        createWriter();
+        writer.setPrefix(arg0, arg1);
+    }
+
+    public void writeAttribute(String arg0, String arg1, String arg2, String arg3) throws XMLStreamException {
+        createWriter();
+        writer.writeAttribute(arg0, arg1, arg2, arg3);
+    }
+
+    public void writeAttribute(String arg0, String arg1, String arg2) throws XMLStreamException {
+        createWriter();
+        writer.writeAttribute(arg0, arg1, arg2);
+    }
+
+    public void writeAttribute(String arg0, String arg1) throws XMLStreamException {
+        createWriter();
+        writer.writeAttribute(arg0, arg1);
+    }
+
+    public void writeCData(String arg0) throws XMLStreamException {
+        createWriter();
+        writer.writeCData(arg0);
+    }
+
+    public void writeCharacters(char[] arg0, int arg1, int arg2) throws XMLStreamException {
+        createWriter();
+        writer.writeCharacters(arg0, arg1, arg2);
+    }
+
+    public void writeCharacters(String arg0) throws XMLStreamException {
+        createWriter();
+        writer.writeCharacters(arg0);
+    }
+
+    public void writeComment(String arg0) throws XMLStreamException {
+        createWriter();
+        writer.writeComment(arg0);
+    }
+
+    public void writeDefaultNamespace(String arg0) throws XMLStreamException {
+        createWriter();
+        writer.writeDefaultNamespace(arg0);
+    }
+
+    public void writeDTD(String arg0) throws XMLStreamException {
+        createWriter();
+        writer.writeDTD(arg0);
+    }
+
+    public void writeEmptyElement(String arg0, String arg1, String arg2) throws XMLStreamException {
+        createWriter();
+        writer.writeEmptyElement(arg0, arg1, arg2);
+    }
+
+    public void writeEmptyElement(String arg0, String arg1) throws XMLStreamException {
+        createWriter();
+        writer.writeEmptyElement(arg0, arg1);
+    }
+
+    public void writeEmptyElement(String arg0) throws XMLStreamException {
+        createWriter();
+        writer.writeEmptyElement(arg0);
+    }
+
+    public void writeEndDocument() throws XMLStreamException {
+        createWriter();
+        writer.writeEndDocument();
+    }
+
+    public void writeEndElement() throws XMLStreamException {
+        createWriter();
+        writer.writeEndElement();
+    }
+
+    public void writeEntityRef(String arg0) throws XMLStreamException {
+        createWriter();
+        writer.writeEntityRef(arg0);
+    }
+
+    public void writeNamespace(String arg0, String arg1) throws XMLStreamException {
+        createWriter();
+        writer.writeNamespace(arg0, arg1);
+    }
+
+    public void writeProcessingInstruction(String arg0, String arg1) throws XMLStreamException {
+        createWriter();
+        writer.writeProcessingInstruction(arg0, arg1);
+    }
+
+    public void writeProcessingInstruction(String arg0) throws XMLStreamException {
+        createWriter();
+        writer.writeProcessingInstruction(arg0);
+    }
+
+    public void writeStartDocument() throws XMLStreamException {
+        createWriter();
+        writer.writeStartDocument();
+    }
+
+    public void writeStartDocument(String arg0, String arg1) throws XMLStreamException {
+        createWriter();
+        writer.writeStartDocument(arg0, arg1);
+    }
+
+    public void writeStartDocument(String arg0) throws XMLStreamException {
+        createWriter();
+        writer.writeStartDocument(arg0);
+    }
+
+    public void writeStartElement(String arg0, String arg1, String arg2) throws XMLStreamException {
+        createWriter();
+        writer.writeStartElement(arg0, arg1, arg2);
+    }
+
+    public void writeStartElement(String arg0, String arg1) throws XMLStreamException {
+        createWriter();
+        writer.writeStartElement(arg0, arg1);
+    }
+
+    public void writeStartElement(String arg0) throws XMLStreamException {
+        createWriter();
+        writer.writeStartElement(arg0);
+    }
+
+    /**
+     * If this XMLStreamWriter is connected to an OutputStream
+     * then the OutputStream is returned.  This allows a node
+     * (perhaps an OMSourcedElement) to write its content
+     * directly to the OutputStream.
+     * @return OutputStream or null
+     */
+    public OutputStream getOutputStream() throws XMLStreamException {
+
+        if (os != null) {
+            // Flush the state of the writer..Many times the 
+            // write defers the writing of tag characters (>)
+            // until the next write.  Flush out this character
+            if (writer != null) {
+                this.writeCharacters("");
+                this.flush();
+            }
+        }
+        return os;
+    }
+}
diff --git a/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/XMLStringDataSource.java b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/XMLStringDataSource.java
new file mode 100644
index 0000000000..e8e3193e24
--- /dev/null
+++ b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/XMLStringDataSource.java
@@ -0,0 +1,84 @@
+/*
+ * 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.jaxb.axiom.ext;
+
+import java.io.IOException;
+import java.io.StringReader;
+import java.io.UnsupportedEncodingException;
+import java.io.Writer;
+
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+
+import org.apache.axiom.om.OMDataSourceExt;
+import org.apache.axiom.om.OMOutputFormat;
+import org.apache.axiom.om.ds.OMDataSourceExtBase;
+import org.apache.axiom.om.util.StAXUtils;
+
+/**
+ * OMDataSource backed by a string containing xml data
+ */
+public class XMLStringDataSource extends OMDataSourceExtBase {
+    private String data;
+
+    public XMLStringDataSource(String data) {
+        super();
+        this.data = data;
+    }
+
+    public void close() {
+    }
+
+    public OMDataSourceExt copy() {
+        return new XMLStringDataSource(data);
+    }
+
+    public Object getObject() {
+        return data;
+    }
+
+    public XMLStreamReader getReader() throws XMLStreamException {
+        StringReader reader = new StringReader(data);
+        return StAXUtils.createXMLStreamReader(reader);
+    }
+
+    public void serialize(Writer writer, OMOutputFormat format) throws XMLStreamException {
+        try {
+            writer.write(data);
+        } catch (UnsupportedEncodingException e) {
+            throw new XMLStreamException(e);
+        } catch (IOException e) {
+            throw new XMLStreamException(e);
+        }
+    }
+
+    public byte[] getXMLBytes(String encoding) throws UnsupportedEncodingException {
+        return data.getBytes(encoding);
+    }
+
+    public boolean isDestructiveRead() {
+        return false;
+    }
+
+    public boolean isDestructiveWrite() {
+        return false;
+    }
+
+}
diff --git a/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/resources/META-INF/services/org.apache.tuscany.sca.databinding.PullTransformer b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/resources/META-INF/services/org.apache.tuscany.sca.databinding.PullTransformer
new file mode 100644
index 0000000000..b48e629927
--- /dev/null
+++ b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/main/resources/META-INF/services/org.apache.tuscany.sca.databinding.PullTransformer
@@ -0,0 +1,26 @@
+# 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 classes for the transformers
+org.apache.tuscany.sca.databinding.jaxb.axiom.JAXB2OMElement;source=javax.xml.bind.JAXBElement,target=org.apache.axiom.om.OMElement,weight=3000
+org.apache.tuscany.sca.databinding.jaxb.axiom.JAXB2OMElement;source=java:simpleType,target=org.apache.axiom.om.OMElement,weight=3000
+org.apache.tuscany.sca.databinding.jaxb.axiom.JAXB2OMElement;source=java:complexType,target=org.apache.axiom.om.OMElement,weight=3000
+
+org.apache.tuscany.sca.databinding.jaxb.axiom.OMElement2JAXB;source=org.apache.axiom.om.OMElement,target=javax.xml.bind.JAXBElement,weight=3000,public=false
+org.apache.tuscany.sca.databinding.jaxb.axiom.OMElement2JAXB;source=org.apache.axiom.om.OMElement,target=java:complexType,weight=90000,public=false
+org.apache.tuscany.sca.databinding.jaxb.axiom.OMElement2JAXB;source=org.apache.axiom.om.OMElement,target=java:simpleType,weight=90000,public=false
+
diff --git a/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/test/java/org/apache/tuscany/databinding/jaxb/axiom/JAXB2OMTestCase.java b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/test/java/org/apache/tuscany/databinding/jaxb/axiom/JAXB2OMTestCase.java
new file mode 100644
index 0000000000..9f79eeed04
--- /dev/null
+++ b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/test/java/org/apache/tuscany/databinding/jaxb/axiom/JAXB2OMTestCase.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.databinding.jaxb.axiom;
+
+import java.io.StringWriter;
+
+import javax.xml.bind.JAXBElement;
+import javax.xml.stream.XMLStreamReader;
+
+import org.apache.axiom.om.OMElement;
+import org.apache.axiom.om.impl.builder.StAXOMBuilder;
+import org.apache.tuscany.sca.core.DefaultExtensionPointRegistry;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.databinding.impl.TransformationContextImpl;
+import org.apache.tuscany.sca.databinding.jaxb.JAXB2Node;
+import org.apache.tuscany.sca.databinding.jaxb.JAXBContextHelper;
+import org.apache.tuscany.sca.databinding.jaxb.axiom.JAXB2OMElement;
+import org.apache.tuscany.sca.databinding.xml.Node2XMLStreamReader;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.impl.DataTypeImpl;
+import org.apache.tuscany.sca.interfacedef.util.XMLType;
+import org.junit.Test;
+import org.w3c.dom.Node;
+
+import com.example.ipo.jaxb.ObjectFactory;
+import com.example.ipo.jaxb.PurchaseOrderType;
+import com.example.ipo.jaxb.USAddress;
+import com.example.ipo.jaxb.USState;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class JAXB2OMTestCase {
+    @Test
+    public void testTransformElement() throws Exception {
+        JAXBElement<PurchaseOrderType> po = createPO();
+        DataType<?> sourceDataType = new DataTypeImpl<XMLType>(PurchaseOrderType.class, XMLType.UNKNOWN);
+        DataType<?> targetDataType = new DataTypeImpl<XMLType>(PurchaseOrderType.class, new XMLType(po.getName(), null));
+        TransformationContext tContext = new TransformationContextImpl();
+        tContext.setSourceDataType(sourceDataType);
+        tContext.setTargetDataType(targetDataType);
+
+        // Force the JAXBContext to be cached
+        JAXBContextHelper.createJAXBContext(tContext, true);
+
+        long start = System.currentTimeMillis();
+        JAXB2OMElement t1 = new JAXB2OMElement();
+        OMElement om = t1.transform(po, tContext);
+        long duration1 = System.currentTimeMillis() - start;
+        StringWriter sw = new StringWriter();
+        // serializeAndConsume() will trigger the JAXBDataSource.serialize(Writer, OMOutputFormat)
+        om.serializeAndConsume(sw);
+        System.out.println(sw.toString());
+
+        start = System.currentTimeMillis();
+        Node node = new JAXB2Node(new DefaultExtensionPointRegistry()).transform(po, tContext);
+        XMLStreamReader reader = new Node2XMLStreamReader().transform(node, null);
+        om = new StAXOMBuilder(reader).getDocumentElement();
+        sw = new StringWriter();
+        om.serializeAndConsume(sw);
+        long duration2 = System.currentTimeMillis() - start;
+        System.out.println(sw.toString());
+        System.out.println(duration1 + " vs. " + duration2);
+    }
+
+    @Test
+    public void testTransformType() throws Exception {
+        JAXBElement<PurchaseOrderType> po = createPO();
+        DataType<?> sourceDataType = new DataTypeImpl<XMLType>(PurchaseOrderType.class, XMLType.UNKNOWN);
+        DataType<?> targetDataType = new DataTypeImpl<XMLType>(PurchaseOrderType.class, new XMLType(po.getName(), null));
+        TransformationContext tContext = new TransformationContextImpl();
+        tContext.setSourceDataType(sourceDataType);
+        tContext.setTargetDataType(targetDataType);
+        OMElement om = new JAXB2OMElement().transform(po.getValue(), tContext);
+        StringWriter sw = new StringWriter();
+        om.serializeAndConsume(sw);
+        System.out.println(sw.toString());
+    }
+
+    private JAXBElement<PurchaseOrderType> createPO() {
+        ObjectFactory factory = new ObjectFactory();
+        PurchaseOrderType type = factory.createPurchaseOrderType();
+        JAXBElement<PurchaseOrderType> po = factory.createPurchaseOrder(type);
+        type.setItems(factory.createItems());
+        type.setComment("123");
+        USAddress address = factory.createUSAddress();
+        address.setCity("San Jose");
+        address.setStreet("ABC St.");
+        address.setState(USState.CA);
+        type.setShipTo(address);
+        return po;
+    }
+}
diff --git a/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/test/java/org/apache/tuscany/databinding/jaxb/axiom/OMElement2JAXBTestCase.java b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/test/java/org/apache/tuscany/databinding/jaxb/axiom/OMElement2JAXBTestCase.java
new file mode 100644
index 0000000000..3c00307941
--- /dev/null
+++ b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/test/java/org/apache/tuscany/databinding/jaxb/axiom/OMElement2JAXBTestCase.java
@@ -0,0 +1,71 @@
+/*
+ * 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.databinding.jaxb.axiom;
+
+import java.io.ByteArrayInputStream;
+
+import javax.xml.namespace.QName;
+
+import junit.framework.Assert;
+
+import org.apache.axiom.om.OMElement;
+import org.apache.axiom.om.impl.builder.StAXOMBuilder;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.databinding.impl.TransformationContextImpl;
+import org.apache.tuscany.sca.databinding.jaxb.axiom.OMElement2JAXB;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.impl.DataTypeImpl;
+import org.apache.tuscany.sca.interfacedef.util.XMLType;
+import org.junit.Test;
+
+import com.example.ipo.jaxb.PurchaseOrderType;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class OMElement2JAXBTestCase {
+    private static final String XML =
+        "<ns0:root xmlns:ns0=\"http://ns0\" xmlns:ns2=\"http://www.example.com/IPO\">" + "<ns1:next xmlns:ns1=\"http://ns1\">"
+            + "<ns2:purchaseOrder>"
+            + "<shipTo xsi:type=\"ns2:USAddress\" "
+            + "xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">"
+            + "<street>ABC St.</street><city>San Jose</city><state>CA</state></shipTo>"
+            + "<ns2:comment>123</ns2:comment><items/>"
+            + "</ns2:purchaseOrder>"
+            + "</ns1:next>"
+            + "</ns0:root>";
+
+    @Test
+    public void testTransform() throws Exception {
+        DataType<?> sourceDataType = new DataTypeImpl<XMLType>(PurchaseOrderType.class, XMLType.UNKNOWN);
+        QName qname = new QName("http://www.example.com/IPO", "purchaseOrder");
+        DataType<?> targetDataType = new DataTypeImpl<XMLType>(PurchaseOrderType.class, new XMLType(qname, null));
+        TransformationContext tContext = new TransformationContextImpl();
+        tContext.setSourceDataType(sourceDataType);
+        tContext.setTargetDataType(targetDataType);
+
+        StAXOMBuilder builder = new StAXOMBuilder(new ByteArrayInputStream(XML.getBytes("UTF-8")));
+        OMElement root = builder.getDocumentElement();
+        OMElement next = (OMElement)root.getChildElements().next();
+        OMElement po = (OMElement)next.getChildElements().next();
+        Object jaxb = new OMElement2JAXB().transform(po, tContext);
+        Assert.assertTrue(jaxb instanceof PurchaseOrderType);
+    }
+}
diff --git a/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/test/resources/ipo.xsd b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/test/resources/ipo.xsd
new file mode 100644
index 0000000000..241ec15d36
--- /dev/null
+++ b/branches/sca-java-2.0-M4/modules/databinding-jaxb-axiom/src/test/resources/ipo.xsd
@@ -0,0 +1,136 @@
+<!--
+ * 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.    
+-->
+<schema targetNamespace="http://www.example.com/IPO"
+	xmlns="http://www.w3.org/2001/XMLSchema"
+	xmlns:ipo="http://www.example.com/IPO">
+
+	<annotation>
+		<documentation xml:lang="en">
+			International Purchase order schema for Example.com
+			Copyright 2000 Example.com. All rights reserved.
+		</documentation>
+	</annotation>
+
+
+	<element name="purchaseOrder" type="ipo:PurchaseOrderType" />
+
+	<element name="comment" type="string" />
+
+	<complexType name="PurchaseOrderType">
+		<sequence>
+			<element name="shipTo" type="ipo:Address" />
+			<element name="billTo" type="ipo:Address" />
+			<element ref="ipo:comment" minOccurs="0" />
+			<element name="items" type="ipo:Items" />
+		</sequence>
+		<attribute name="orderDate" type="date" />
+	</complexType>
+
+	<complexType name="Items">
+		<sequence>
+			<element name="item" minOccurs="0" maxOccurs="unbounded">
+				<complexType>
+					<sequence>
+						<element name="productName" type="string" />
+						<element name="quantity">
+							<simpleType>
+								<restriction base="positiveInteger">
+									<maxExclusive value="100" />
+								</restriction>
+							</simpleType>
+						</element>
+						<element name="USPrice" type="decimal" />
+						<element ref="ipo:comment" minOccurs="0" />
+						<element name="shipDate" type="date"
+							minOccurs="0" />
+					</sequence>
+					<attribute name="partNum" type="ipo:SKU"
+						use="required" />
+				</complexType>
+			</element>
+		</sequence>
+	</complexType>
+
+	<simpleType name="SKU">
+		<restriction base="string">
+			<pattern value="\d{3}-[A-Z]{2}" />
+		</restriction>
+	</simpleType>
+
+	<complexType name="Address">
+		<sequence>
+			<element name="name" type="string" />
+			<element name="street" type="string" />
+			<element name="city" type="string" />
+		</sequence>
+	</complexType>
+
+	<complexType name="USAddress">
+		<complexContent>
+			<extension base="ipo:Address">
+				<sequence>
+					<element name="state" type="ipo:USState" />
+					<element name="zip" type="positiveInteger" />
+				</sequence>
+			</extension>
+		</complexContent>
+	</complexType>
+
+	<complexType name="UKAddress">
+		<complexContent>
+			<extension base="ipo:Address">
+				<sequence>
+					<element name="postcode" type="ipo:UKPostcode" />
+				</sequence>
+				<attribute name="exportCode" type="positiveInteger"
+					fixed="1" />
+			</extension>
+		</complexContent>
+	</complexType>
+
+	<!-- other Address derivations for more countries -->
+
+	<simpleType name="USState">
+		<restriction base="string">
+			<enumeration value="AK" />
+			<enumeration value="AL" />
+			<enumeration value="AR" />
+			<enumeration value="CA" />
+			<enumeration value="PA" />
+			<!-- and so on ... -->
+		</restriction>
+	</simpleType>
+
+	<simpleType name="Postcode">
+		<restriction base="string">
+			<length value="7" fixed="true" />
+		</restriction>
+	</simpleType>
+
+
+	<simpleType name="UKPostcode">
+		<restriction base="ipo:Postcode">
+			<pattern value="[A-Z]{2}\d\s\d[A-Z]{2}" />
+		</restriction>
+	</simpleType>
+
+
+
+</schema>
+