Copy trunk to beta2 release branch. (I've not yet changed the version so that would need to be done first before the branch is used)

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1069272 13f79535-47bb-0310-9956-ffa450edef68

13 files changed, 1156 insertions, 0 deletions

diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/AxiomDataBinding.java b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/AxiomDataBinding.java
new file mode 100644
index 0000000000..014a0f5223
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/AxiomDataBinding.java
@@ -0,0 +1,66 @@
+/*
+ * 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.axiom;
+
+import org.apache.axiom.om.OMElement;
+import org.apache.tuscany.sca.databinding.BaseDataBinding;
+import org.apache.tuscany.sca.databinding.WrapperHandler;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.Operation;
+
+/**
+ * DataBinding for AXIOM
+ *
+ * @version $Rev$ $Date$
+ */
+public class AxiomDataBinding extends BaseDataBinding {
+    
+    public static final String NAME = OMElement.class.getName();
+
+    public AxiomDataBinding() {
+        super(NAME, OMElement.class);
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.databinding.impl.BaseDataBinding#getWrapperHandler()
+     */
+    @Override
+    public WrapperHandler getWrapperHandler() {
+        return new OMElementWrapperHandler();
+    }
+
+    @Override
+    public Object copy(Object source,
+                       DataType sourceDataType,
+                       DataType targetDataType,
+                       Operation sourceOperation,
+                       Operation targetOperation) {
+        if ( OMElement.class.isAssignableFrom(source.getClass()) ) {
+            try {
+                OMElement sourceElement = (OMElement)source;
+                return sourceElement.cloneOMElement();
+            } catch ( Exception e ) {
+                throw new IllegalArgumentException(e);
+            }
+        }
+        return super.copy(source, sourceDataType, targetDataType, sourceOperation, targetOperation);
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/AxiomHelper.java b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/AxiomHelper.java
new file mode 100644
index 0000000000..cd820ab4b4
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/AxiomHelper.java
@@ -0,0 +1,142 @@
+/*
+ * 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.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/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/Exception2OMElement.java b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/Exception2OMElement.java
new file mode 100644
index 0000000000..f44297edb7
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/Exception2OMElement.java
@@ -0,0 +1,95 @@
+/*
+ * 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.axiom;
+
+import javax.xml.namespace.QName;
+
+import org.apache.axiom.om.OMAbstractFactory;
+import org.apache.axiom.om.OMAttribute;
+import org.apache.axiom.om.OMElement;
+import org.apache.axiom.om.OMFactory;
+import org.apache.axiom.om.OMNamespace;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.databinding.javabeans.Java2XMLMapperException;
+import org.apache.tuscany.sca.databinding.javabeans.JavaBean2XMLTransformer;
+
+/**
+ *
+ * @version $Rev$ $Date$
+ */
+public class Exception2OMElement extends JavaBean2XMLTransformer<OMElement> {
+
+    public static final String GETCAUSE = "getCause";
+    public static final String GETLOCALIZEDMESSAGE = "getLocalizedMessage";
+    public static final String GETSTACKTRACE = "getStackTrace";
+    public static final String GETCLASS = "getClass";
+
+    private OMFactory factory;
+
+    public Exception2OMElement() {
+        super();
+        factory = OMAbstractFactory.getOMFactory();
+    }
+
+    @Override
+    public OMElement transform(Object source, TransformationContext context) {
+        OMElement element = super.transform(source, context);
+        AxiomHelper.adjustElementName(context, element);
+        return element;
+    }
+
+    @Override
+    protected boolean isMappedGetter(String methodName) {
+        if (GETCAUSE.equals(methodName)
+            || GETLOCALIZEDMESSAGE.equals(methodName)
+            || GETSTACKTRACE.equals(methodName)
+            || GETCLASS.equals(methodName)) {
+            return false;
+        } else {
+            return true;
+        }
+    }
+
+    @Override
+    public void appendChild(OMElement parentElement, OMElement childElement) throws Java2XMLMapperException {
+        parentElement.addChild(childElement);
+    }
+
+    @Override
+    public OMElement createElement(QName qName) throws Java2XMLMapperException {
+        return factory.createOMElement(qName);
+    }
+
+    @Override
+    public void appendText(OMElement parentElement, String textData) throws Java2XMLMapperException {
+        if (textData == null) {
+            OMNamespace xsi = factory.createOMNamespace("http://www.w3.org/2001/XMLSchema-instance", "xsi");
+            OMAttribute nil = factory.createOMAttribute("nil", xsi, "true");
+            parentElement.addAttribute(nil);
+        } else {
+            factory.createOMText(parentElement, textData);
+        }
+    }
+
+    @Override
+    public Class getTargetType() {
+        return OMElement.class;
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/Externalizable2OMElement.java b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/Externalizable2OMElement.java
new file mode 100644
index 0000000000..cede1c4689
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/Externalizable2OMElement.java
@@ -0,0 +1,77 @@
+/*
+ * 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.axiom;
+
+import java.io.ByteArrayOutputStream;
+import java.io.Externalizable;
+import java.io.ObjectOutputStream;
+
+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.axiom.om.OMNamespace;
+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.BaseTransformer;
+import org.apache.tuscany.sca.databinding.impl.XSDDataTypeConverter.Base64Binary;
+
+/**
+ *
+ * @version $Rev$ $Date$
+ */
+public class Externalizable2OMElement extends BaseTransformer<Externalizable, OMElement> implements
+    PullTransformer<Externalizable, OMElement> {
+
+    @Override
+    protected Class<Externalizable> getSourceType() {
+        return  Externalizable.class;
+    }
+
+    @Override
+    protected Class<OMElement> getTargetType() {
+        return OMElement.class;
+    }
+
+    public OMElement transform(Externalizable source, TransformationContext context) {
+        OMElement element = null;
+
+        try {
+            ByteArrayOutputStream bos = new ByteArrayOutputStream();
+            ObjectOutputStream out = new ObjectOutputStream(bos);
+            out.writeObject(source);
+            out.close();
+            OMFactory factory = OMAbstractFactory.getOMFactory();
+            OMNamespace ns = AxiomHelper.createOMNamespace(factory, new QName("http://callable"));
+            element = factory.createOMElement("reference",ns);
+            element.setText(Base64Binary.encode(bos.toByteArray()));
+            return element;
+        } catch (Exception e) {
+            throw new TransformationException(e);
+        }
+    }
+	
+    @Override
+    public int getWeight() {
+        return 10;
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElement2Exception.java b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElement2Exception.java
new file mode 100644
index 0000000000..947cd99a19
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElement2Exception.java
@@ -0,0 +1,79 @@
+/*
+ * 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.axiom;
+
+import java.util.Iterator;
+
+import javax.xml.namespace.QName;
+
+import org.apache.axiom.om.OMElement;
+import org.apache.axiom.om.OMNode;
+import org.apache.axiom.om.OMText;
+import org.apache.tuscany.sca.databinding.javabeans.XML2JavaBeanTransformer;
+import org.apache.tuscany.sca.databinding.javabeans.XML2JavaMapperException;
+
+/**
+ * Transformer to convert data from an OMElement to a Java Exception
+ *
+ * @version $Rev$ $Date$
+ */
+public class OMElement2Exception extends XML2JavaBeanTransformer<OMElement> {
+
+    @Override
+    public OMElement getRootElement(OMElement element) throws XML2JavaMapperException {
+        return element;
+    }
+
+    @Override
+    public Iterator<OMElement> getChildElements(OMElement parent) throws XML2JavaMapperException {
+        return parent.getChildElements();
+    }
+
+    @Override
+    public String getElementName(OMElement element) throws XML2JavaMapperException {
+        return element.getLocalName();
+    }
+
+    @Override
+    public String getText(OMElement element) throws XML2JavaMapperException {
+        return element.getText();
+    }
+
+    @Override
+    public boolean isTextElement(OMElement element) throws XML2JavaMapperException {
+        return false;
+    }
+
+    @Override
+    public boolean isTextOnly(OMElement element) throws XML2JavaMapperException {
+        OMNode firstChild = element.getFirstOMChild();
+        return firstChild instanceof OMText && firstChild.getNextOMSibling() == null;
+    }
+
+    @Override
+    public OMElement getFirstChildWithName(OMElement element, QName name) throws XML2JavaMapperException {
+        return element.getFirstChildWithName(name);
+    }
+
+    @Override
+    public Class getSourceType() {
+        return OMElement.class;
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElement2Externalizable.java b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElement2Externalizable.java
new file mode 100644
index 0000000000..f4bbea81cc
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElement2Externalizable.java
@@ -0,0 +1,69 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.databinding.axiom;
+
+import java.io.ByteArrayInputStream;
+import java.io.Externalizable;
+import java.io.ObjectInputStream;
+
+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.BaseTransformer;
+import org.apache.tuscany.sca.databinding.impl.XSDDataTypeConverter.Base64Binary;
+
+/**
+ * Transformer to convert data from an OMElement to XML String
+ *
+ * @version $Rev$ $Date$
+ */
+public class OMElement2Externalizable extends BaseTransformer<OMElement, Externalizable> implements PullTransformer<OMElement, Externalizable> {
+    // private XmlOptions options;
+    
+    public Externalizable transform(OMElement source, TransformationContext context) {
+        try {
+            String value = source.getText();
+            ByteArrayInputStream bis = new ByteArrayInputStream(Base64Binary.decode(value));
+            ObjectInputStream ois = new ObjectInputStream(bis);
+            Object obj = ois.readObject();
+            ois.close();
+            Externalizable aReference = (Externalizable) obj;
+            return aReference;
+        } catch (Exception e) {
+            throw new TransformationException(e);
+        }
+    }
+
+    @Override
+    protected Class<OMElement> getSourceType() {
+        return OMElement.class;
+    }
+
+    @Override
+    protected Class<Externalizable> getTargetType() {
+        return Externalizable.class;
+    }
+
+    @Override
+    public int getWeight() {
+        return 10;
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElement2Object.java b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElement2Object.java
new file mode 100644
index 0000000000..ea40e61746
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElement2Object.java
@@ -0,0 +1,50 @@
+/*
+ * 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.axiom;
+
+import org.apache.axiom.om.OMElement;
+import org.apache.tuscany.sca.databinding.impl.SimpleType2JavaTransformer;
+
+/**
+ * Transformer to convert data from a simple java Object to OMElement.
+ *
+ * @version $Rev$ $Date$
+ */
+public class OMElement2Object extends SimpleType2JavaTransformer<OMElement> {
+
+    /**
+     * @see org.apache.tuscany.sca.databinding.impl.SimpleType2JavaTransformer#close(java.lang.Object)
+     */
+    @Override
+    protected void close(OMElement source) {
+        if (source != null) {
+            AxiomHelper.completeAndClose(source);
+        }
+    }
+
+    @Override
+    protected String getText(OMElement source) {
+        return source.getText();
+    }
+
+    @Override
+    public Class getSourceType() {
+        return OMElement.class;
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElement2String.java b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElement2String.java
new file mode 100644
index 0000000000..0fc2cfa8a3
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElement2String.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.axiom;
+
+import java.io.StringWriter;
+
+import javax.xml.stream.XMLStreamException;
+
+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.BaseTransformer;
+
+/**
+ * Transformer to convert data from an OMElement to XML String
+ *
+ * @version $Rev$ $Date$
+ */
+public class OMElement2String extends BaseTransformer<OMElement, String> implements PullTransformer<OMElement, String> {
+    // private XmlOptions options;
+    
+    public String transform(OMElement source, TransformationContext context) {
+        try {
+            StringWriter writer = new StringWriter();
+            source.serialize(writer);
+            return writer.toString();
+        } catch (XMLStreamException e) {
+            throw new TransformationException(e);
+        }
+    }
+
+    @Override
+    protected Class<OMElement> getSourceType() {
+        return OMElement.class;
+    }
+
+    @Override
+    protected Class<String> getTargetType() {
+        return String.class;
+    }
+
+    @Override
+    public int getWeight() {
+        return 40;
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElement2XMLStreamReader.java b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElement2XMLStreamReader.java
new file mode 100644
index 0000000000..e0da9ad428
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElement2XMLStreamReader.java
@@ -0,0 +1,66 @@
+/*
+ * 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.axiom;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamReader;
+
+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.BaseTransformer;
+
+/**
+ *
+ * @version $Rev$ $Date$
+ */
+public class OMElement2XMLStreamReader extends BaseTransformer<OMElement, XMLStreamReader> implements
+    PullTransformer<OMElement, XMLStreamReader> {
+    // private XmlOptions options;
+
+    public static final QName QNAME_NIL = new QName("http://www.w3.org/2001/XMLSchema-instance", "nil");
+
+    public XMLStreamReader transform(OMElement source, TransformationContext context) {
+        if (source == null) {
+            return null;
+        } else {
+            if ("true".equals(source.getAttributeValue(QNAME_NIL))) {
+                return null;
+            } else {
+                return source.getXMLStreamReader();
+            }
+        }
+    }
+
+    @Override
+    protected Class<OMElement> getSourceType() {
+        return OMElement.class;
+    }
+
+    @Override
+    protected Class<XMLStreamReader> getTargetType() {
+        return XMLStreamReader.class;
+    }
+
+    @Override
+    public int getWeight() {
+        return 10;
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElementWrapperHandler.java b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElementWrapperHandler.java
new file mode 100644
index 0000000000..9084f09dc0
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElementWrapperHandler.java
@@ -0,0 +1,251 @@
+/*
+ * 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.axiom;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import javax.xml.XMLConstants;
+import javax.xml.namespace.QName;
+
+import org.apache.axiom.om.OMAbstractFactory;
+import org.apache.axiom.om.OMAttribute;
+import org.apache.axiom.om.OMElement;
+import org.apache.axiom.om.OMFactory;
+import org.apache.axiom.om.OMNamespace;
+import org.apache.tuscany.sca.databinding.WrapperHandler;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.impl.DataTypeImpl;
+import org.apache.tuscany.sca.interfacedef.util.ElementInfo;
+import org.apache.tuscany.sca.interfacedef.util.TypeInfo;
+import org.apache.tuscany.sca.interfacedef.util.WrapperInfo;
+import org.apache.tuscany.sca.interfacedef.util.XMLType;
+
+/**
+ * OMElement wrapper handler implementation
+ *
+ * @version $Rev$ $Date$
+ */
+public class OMElementWrapperHandler implements WrapperHandler<OMElement> {
+
+    private OMFactory factory;
+
+    public OMElementWrapperHandler() {
+        super();
+        this.factory = OMAbstractFactory.getOMFactory();
+    }
+
+    public OMElement create(Operation operation, boolean input) {
+        WrapperInfo wrapperInfo = operation.getWrapper();
+        ElementInfo element = input ? wrapperInfo.getInputWrapperElement() : wrapperInfo.getOutputWrapperElement();
+        // Class<?> wrapperClass = input ? wrapperInfo.getInputWrapperClass() : wrapperInfo.getOutputWrapperClass();
+        OMElement wrapper = AxiomHelper.createOMElement(factory, element.getQName());
+        return wrapper;
+    }
+
+    public void setChildren(OMElement wrapper, Object[] childObjects, Operation operation, boolean input) {
+        List<ElementInfo> childElements =
+            input ? operation.getWrapper().getInputChildElements() : operation.getWrapper().getOutputChildElements();
+        for (int i = 0; i < childElements.size(); i++) {
+            setChild(wrapper, i, childElements.get(i), childObjects[i]);
+        }
+
+    }
+
+    public void setChild(OMElement wrapper, int i, ElementInfo childElement, Object value) {
+        if (childElement.isMany()) {
+            Object[] elements = (Object[])value;
+            if (value != null) {
+                for (Object e : elements) {
+                    addChild(wrapper, childElement, (OMElement)e);
+                }
+            }
+        } else {
+            OMElement element = (OMElement)value;
+            addChild(wrapper, childElement, element);
+        }
+    }
+
+    private void addChild(OMElement wrapper, ElementInfo childElement, OMElement element) {
+        if (element == null) {
+            OMElement e = wrapper.getOMFactory().createOMElement(childElement.getQName(), wrapper);
+            attachXSINil(e);
+            return;
+        }
+        QName elementName = childElement.getQName();
+        // Make it a bit tolerating of element QName 
+        if (!elementName.equals(element.getQName())) {
+            OMNamespace namespace = factory.createOMNamespace(elementName.getNamespaceURI(), elementName.getPrefix());
+            element.setNamespace(namespace);
+            element.setLocalName(childElement.getQName().getLocalPart());
+        }
+        wrapper.addChild(element);
+    }
+
+    public List getChildren(OMElement wrapper, Operation operation, boolean input) {
+        List<ElementInfo> childElements = input? operation.getWrapper().getInputChildElements():
+            operation.getWrapper().getOutputChildElements();
+
+        List<Object> elements = new ArrayList<Object>();
+        int i = 0;
+        for (ElementInfo e : childElements) {
+            elements.add(getChild(wrapper, e, i));
+            i++;
+        }
+        return elements;
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.databinding.WrapperHandler#getWrapperType(Operation, boolean)
+     */
+    public DataType getWrapperType(Operation operation, boolean input) {
+        WrapperInfo wrapper = operation.getWrapper();
+        ElementInfo element = input ? wrapper.getInputWrapperElement() : wrapper.getOutputWrapperElement();
+        DataType<XMLType> wrapperType =
+            new DataTypeImpl<XMLType>(AxiomDataBinding.NAME, OMElement.class, new XMLType(element));
+        return wrapperType;
+    }
+
+    public boolean isInstance(Object wrapperObj, Operation operation, boolean input) {
+        WrapperInfo wrapperInfo = operation.getWrapper();
+        ElementInfo element = input ? wrapperInfo.getInputWrapperElement() : wrapperInfo.getOutputWrapperElement();
+        //        List<ElementInfo> childElements =
+        //            input ? wrapperInfo.getInputChildElements() : wrapperInfo.getOutputChildElements();
+        OMElement wrapper = (OMElement)wrapperObj;
+        if (!element.getQName().equals(wrapper.getQName())) {
+            return false;
+        }
+        return true;
+        /*
+        Set<QName> names = new HashSet<QName>();
+        for (ElementInfo e : childElements) {
+            names.add(e.getQName());
+        }
+        for (Iterator i = wrapper.getChildElements(); i.hasNext();) {
+            OMElement child = (OMElement)i.next();
+            if (!names.contains(child.getQName())) {
+                return false;
+            }
+        }
+        return true;
+        */
+    }
+
+    private static final QName XSI_TYPE_QNAME = new QName("http://www.w3.org/2001/XMLSchema-instance", "type", "xsi");
+
+    private List<List<OMElement>> getElements(OMElement wrapper) {
+        List<List<OMElement>> elements = new ArrayList<List<OMElement>>();
+        List<OMElement> current = new ArrayList<OMElement>();
+        elements.add(current);
+        boolean first = true;
+        QName last = null;
+
+        for (Iterator i = wrapper.getChildElements(); i.hasNext();) {
+            OMElement element = (OMElement)i.next();
+            if (first || element.getQName().equals(last)) {
+                current.add(element);
+                last = element.getQName();
+            } else {
+                current = new ArrayList<OMElement>();
+                elements.add(current);
+                current.add(element);
+                last = element.getQName();
+            }
+            first = false;
+        }
+        return elements;
+    }
+
+    public Object getChild(OMElement wrapper, ElementInfo childElement, int index) {
+        Iterator children = wrapper.getChildrenWithName(childElement.getQName());
+        if (!children.hasNext()) {
+            // No name match, try by index
+            List<List<OMElement>> list = getElements(wrapper);
+            List<OMElement> elements = list.get(index);
+            if (!childElement.isMany()) {
+                return elements.isEmpty() ? null : attachXSIType(childElement, elements.get(0));
+            } else {
+                Object[] array = elements.toArray();
+                for (Object item : array) {
+                    attachXSIType(childElement, (OMElement)item);
+                }
+                return array;
+            }
+        }
+        if (!childElement.isMany()) {
+            if (children.hasNext()) {
+                OMElement child = (OMElement)children.next();
+                attachXSIType(childElement, child);
+                return child;
+            } else {
+                return null;
+            }
+        } else {
+            List<OMElement> elements = new ArrayList<OMElement>();
+            for (; children.hasNext();) {
+                OMElement child = (OMElement)children.next();
+                attachXSIType(childElement, child);
+                elements.add(child);
+            }
+            return elements.toArray();
+        }
+    }
+
+    /**
+     * Create xis:type if required 
+     * @param childElement
+     * @param element
+     * @return
+     */
+    private OMElement attachXSIType(ElementInfo childElement, OMElement element) {
+        TypeInfo type = childElement.getType();
+        if (type != null && type.getQName() != null) {
+            OMAttribute attr = element.getAttribute(XSI_TYPE_QNAME);
+            if (attr == null) {
+                String typeNS = type.getQName().getNamespaceURI();
+                if (XMLConstants.W3C_XML_SCHEMA_NS_URI.equals(typeNS)) {
+                    return element;
+                }
+                OMNamespace ns = element.getOMFactory().createOMNamespace(typeNS, "_typens_");
+                element.declareNamespace(ns);
+                OMNamespace xsiNS =
+                    element.getOMFactory().createOMNamespace(XSI_TYPE_QNAME.getNamespaceURI(),
+                                                             XSI_TYPE_QNAME.getPrefix());
+                element.declareNamespace(xsiNS);
+                attr =
+                    element.getOMFactory().createOMAttribute("type",
+                                                             xsiNS,
+                                                             "_typens_:" + type.getQName().getLocalPart());
+                element.addAttribute(attr);
+            }
+        }
+        return element;
+    }
+
+    private void attachXSINil(OMElement element) {
+        OMNamespace xsiNS =
+            element.getOMFactory().createOMNamespace(XSI_TYPE_QNAME.getNamespaceURI(), XSI_TYPE_QNAME.getPrefix());
+        element.declareNamespace(xsiNS);
+        OMAttribute attr = element.getOMFactory().createOMAttribute("nil", xsiNS, "true");
+        element.addAttribute(attr);
+    }
+}
diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/Object2OMElement.java b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/Object2OMElement.java
new file mode 100644
index 0000000000..88d6b462c1
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/Object2OMElement.java
@@ -0,0 +1,63 @@
+/*
+ * 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.axiom;
+
+import javax.xml.namespace.QName;
+
+import org.apache.axiom.om.OMAbstractFactory;
+import org.apache.axiom.om.OMAttribute;
+import org.apache.axiom.om.OMElement;
+import org.apache.axiom.om.OMFactory;
+import org.apache.axiom.om.OMNamespace;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.databinding.impl.Java2SimpleTypeTransformer;
+
+/**
+ * Transformer to convert data from an simple OMElement to Java Object
+ *
+ * @version $Rev$ $Date$
+ */
+public class Object2OMElement extends Java2SimpleTypeTransformer<OMElement> {
+
+    private OMFactory factory;
+
+    public Object2OMElement() {
+        super();
+        factory = OMAbstractFactory.getOMFactory();
+    }
+
+    @Override
+    protected OMElement createElement(QName element, String text, TransformationContext context) {
+        OMElement omElement = AxiomHelper.createOMElement(factory, element);
+        if (text == null) {
+            OMNamespace xsi = factory.createOMNamespace("http://www.w3.org/2001/XMLSchema-instance", "xsi");
+            OMAttribute nil = factory.createOMAttribute("nil", xsi, "true");
+            omElement.addAttribute(nil);
+        } else {
+            factory.createOMText(omElement, text);
+        }
+        return omElement;
+    }
+
+    @Override
+    public Class getTargetType() {
+        return OMElement.class;
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/String2OMElement.java b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/String2OMElement.java
new file mode 100644
index 0000000000..af315b3c11
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/String2OMElement.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.axiom;
+
+import java.io.ByteArrayInputStream;
+
+import org.apache.axiom.om.OMElement;
+import org.apache.axiom.om.impl.builder.StAXOMBuilder;
+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.BaseTransformer;
+
+/**
+ *
+ * @version $Rev$ $Date$
+ */
+public class String2OMElement extends BaseTransformer<String, OMElement> implements
+    PullTransformer<String, OMElement> {
+
+    @SuppressWarnings("unchecked")
+    public OMElement transform(String source, TransformationContext context) {
+        try {
+            StAXOMBuilder builder = new StAXOMBuilder(new ByteArrayInputStream(source.getBytes("UTF-8")));
+            OMElement element = builder.getDocumentElement();
+            AxiomHelper.adjustElementName(context, element);
+            return element;
+        } catch (Exception e) {
+            throw new TransformationException(e);
+        }
+    }
+
+    @Override
+    protected Class<OMElement> getTargetType() {
+        return OMElement.class;
+    }
+
+    @Override
+    protected Class<String> getSourceType() {
+        return String.class;
+    }
+
+    @Override
+    public int getWeight() {
+        return 40;
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/XMLStreamReader2OMElement.java b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/XMLStreamReader2OMElement.java
new file mode 100644
index 0000000000..173a9ab384
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta2/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/XMLStreamReader2OMElement.java
@@ -0,0 +1,70 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.databinding.axiom;
+
+import javax.xml.stream.XMLStreamReader;
+
+import org.apache.axiom.om.OMElement;
+import org.apache.axiom.om.impl.builder.StAXOMBuilder;
+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.BaseTransformer;
+
+/**
+ *
+ * @version $Rev$ $Date$
+ */
+public class XMLStreamReader2OMElement extends BaseTransformer<XMLStreamReader, OMElement> implements
+    PullTransformer<XMLStreamReader, OMElement> {
+
+    public XMLStreamReader2OMElement() {
+        super();
+    }
+
+    public OMElement transform(XMLStreamReader source, TransformationContext context) {
+        if (source == null) {
+            return null;
+        }
+        try {
+            StAXOMBuilder builder = new StAXOMBuilder(source);
+            OMElement element = builder.getDocumentElement();
+            AxiomHelper.adjustElementName(context, element);
+            return element;
+        } catch (Exception e) {
+            throw new TransformationException(e);
+        }
+    }
+
+    @Override
+    protected Class<OMElement> getTargetType() {
+        return OMElement.class;
+    }
+
+    @Override
+    protected Class<XMLStreamReader> getSourceType() {
+        return XMLStreamReader.class;
+    }
+
+    @Override
+    public int getWeight() {
+        return 10;
+    }
+
+}