Move Tuscany from Incubator to top level.

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

5 files changed, 709 insertions, 0 deletions

diff --git a/branches/sca-java-0.91/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/DataObject2OMElement.java b/branches/sca-java-0.91/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/DataObject2OMElement.java
new file mode 100644
index 0000000000..4060fd8e5b
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/DataObject2OMElement.java
@@ -0,0 +1,88 @@
+/*
+ * 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.sdo2om;
+
+import static org.apache.tuscany.sca.databinding.sdo.SDODataBinding.ROOT_ELEMENT;
+
+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.impl.BaseTransformer;
+import org.apache.tuscany.sca.databinding.sdo.SDOContextHelper;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.util.XMLType;
+
+import commonj.sdo.DataObject;
+import commonj.sdo.helper.HelperContext;
+import commonj.sdo.helper.XMLDocument;
+
+/**
+ * SDO DataObject --> AXIOM OMElement transformer
+ * 
+ * @version $Rev$ $Date$
+ */
+public class DataObject2OMElement extends BaseTransformer<DataObject, OMElement> implements
+    PullTransformer<DataObject, OMElement> {
+
+    public OMElement transform(DataObject source, TransformationContext context) {
+        HelperContext helperContext = SDOContextHelper.getHelperContext(context);
+        OMFactory factory = OMAbstractFactory.getOMFactory();
+
+        OMNamespace namespace = null;
+        String localName = ROOT_ELEMENT.getLocalPart();
+        if (context != null) {
+            DataType dataType = context.getTargetDataType();
+            Object logical = dataType == null ? null : dataType.getLogical();
+            if (logical instanceof XMLType) {
+                XMLType xmlType = (XMLType)logical;
+                if (xmlType.isElement()) {
+                    namespace = factory.createOMNamespace(xmlType.getElementName().getNamespaceURI(), xmlType
+                        .getElementName().getPrefix());
+                    localName = xmlType.getElementName().getLocalPart();
+                }
+            }
+        }
+        if (namespace == null) {
+            namespace = factory.createOMNamespace(ROOT_ELEMENT.getNamespaceURI(), ROOT_ELEMENT.getPrefix());
+        }
+
+        XMLDocument document = helperContext.getXMLHelper().createDocument(source,
+                                                                           namespace.getNamespaceURI(),
+                                                                           localName);
+        SDODataSource dataSource = new SDODataSource(document, helperContext);
+        OMElement element = factory.createOMElement(dataSource, localName, namespace);
+        return element;
+    }
+
+    public Class getSourceType() {
+        return DataObject.class;
+    }
+
+    public Class getTargetType() {
+        return OMElement.class;
+    }
+
+    public int getWeight() {
+        return 10;
+    }
+
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/DataObjectSerializer.java b/branches/sca-java-0.91/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/DataObjectSerializer.java
new file mode 100644
index 0000000000..4301ba09e3
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/DataObjectSerializer.java
@@ -0,0 +1,427 @@
+/*
+ * 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.sdo2om;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+import javax.xml.namespace.NamespaceContext;
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sdo.impl.AttributeImpl;
+import org.apache.tuscany.sdo.impl.ReferenceImpl;
+import org.apache.tuscany.sdo.util.SDOUtil;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.emf.ecore.EDataType;
+import org.eclipse.emf.ecore.EReference;
+import org.eclipse.emf.ecore.EStructuralFeature;
+import org.eclipse.emf.ecore.util.ExtendedMetaData;
+
+import commonj.sdo.DataObject;
+import commonj.sdo.Property;
+import commonj.sdo.Sequence;
+import commonj.sdo.Type;
+import commonj.sdo.helper.HelperContext;
+import commonj.sdo.helper.XMLDocument;
+import commonj.sdo.helper.XSDHelper;
+
+public class DataObjectSerializer {
+    private static final String ELEMENT_TEXT = "Text Element";
+
+    // static final String ELEMENT_TEXT = "Element Text";
+    private static final QName XSI_TYPE_QNAME = new QName("http://www.w3.org/2001/XMLSchema-instance", "type", "xsi");
+
+    private Map<String, String> declaredNamespaceMap = new HashMap<String, String>();
+
+    private NameSpaceContextImpl namespaceContext = new NameSpaceContextImpl();
+
+    private DataObject rootDataObject;
+
+    private String rootElementName;
+
+    private String rootElementURI;
+
+    private XMLStreamWriter xmlWriter;
+
+    private XSDHelper xsdHelper;
+
+    public DataObjectSerializer(DataObject rootObject,
+                                XMLStreamWriter xmlWriter,
+                                HelperContext helperCtx,
+                                TransformationContext context) {
+        this.xmlWriter = xmlWriter;
+        this.rootDataObject = rootObject;
+        this.xsdHelper = helperCtx.getXSDHelper();
+        this.rootElementName = xsdHelper.getLocalName(rootObject.getType());
+        this.rootElementURI = rootDataObject.getType().getURI();
+
+        if (context != null) {
+            DataType dataType = context.getTargetDataType();
+            Object targetQName = dataType == null ? null : dataType.getLogical();
+            if (targetQName instanceof QName) {
+                QName name = (QName)targetQName;
+                this.rootElementName = name.getLocalPart();
+                this.rootElementURI = name.getNamespaceURI();
+            }
+        }
+
+    }
+
+    // private void serializeNamespace(String prefix, String URI,
+    // XMLStreamWriter writer) throws XMLStreamException {
+    // String prefix1 = writer.getPrefix(URI);
+    // if (prefix1 == null) {
+    // writer.writeNamespace(prefix, URI);
+    // writer.setPrefix(prefix, URI);
+    // }
+    // }
+
+    public DataObjectSerializer(XMLDocument sourceDocument, XMLStreamWriter xmlWriter, HelperContext helperCtx) {
+        this.xmlWriter = xmlWriter;
+        this.rootDataObject = sourceDocument.getRootObject();
+        this.rootElementName = sourceDocument.getRootElementName();
+        this.rootElementURI = sourceDocument.getRootElementURI();
+        this.xsdHelper = helperCtx.getXSDHelper();
+    }
+
+    protected class NameSpaceContextImpl implements NamespaceContext {
+        private int counter;
+
+        private Map<String, String> prefixToNamespaceMapping = new HashMap<String, String>();
+
+        public NameSpaceContextImpl() {
+            prefixToNamespaceMapping.put("xml", "http://www.w3.org/XML/1998/namespace");
+            prefixToNamespaceMapping.put("xmlns", "http://www.w3.org/2000/xmlns/");
+            prefixToNamespaceMapping.put("xsi", "http://www.w3.org/2001/XMLSchema-instance");
+        }
+
+        public synchronized QName createQName(String nsURI, String name) {
+            String prefix = nsURI != null ? (String)getPrefix(nsURI) : null;
+            if (prefix == null && nsURI != null && !nsURI.equals("")) {
+                prefix = "p" + (counter++);
+            }
+            if (prefix == null) {
+                prefix = "";
+            }
+            if (nsURI != null) {
+                prefixToNamespaceMapping.put(prefix, nsURI);
+                declaredNamespaceMap.put(prefix, nsURI);
+            }
+            return new QName(nsURI, name, prefix);
+        }
+
+        public String getNamespaceURI(String prefix) {
+            if (prefix == null) {
+                throw new IllegalArgumentException("Prefix is null");
+            }
+
+            String ns = (String)prefixToNamespaceMapping.get(prefix);
+            if (ns != null) {
+                return ns;
+            } else {
+                return null;
+            }
+        }
+
+        public String getPrefix(String nsURI) {
+            if (nsURI == null) {
+                throw new IllegalArgumentException("Namespace is null");
+            }
+            for (Iterator i = prefixToNamespaceMapping.entrySet().iterator(); i.hasNext();) {
+                Map.Entry entry = (Map.Entry)i.next();
+                if (entry.getValue().equals(nsURI)) {
+                    return (String)entry.getKey();
+                }
+            }
+            return null;
+        }
+
+        public Iterator getPrefixes(String nsURI) {
+            List prefixList = new ArrayList();
+            for (Iterator i = prefixToNamespaceMapping.entrySet().iterator(); i.hasNext();) {
+                Map.Entry entry = (Map.Entry)i.next();
+                if (entry.getValue().equals(nsURI)) {
+                    prefixList.add(entry.getKey());
+                }
+            }
+            return prefixList.iterator();
+        }
+
+        public void registerMapping(String prefix, String nsURI) {
+            prefixToNamespaceMapping.put(prefix, nsURI);
+        }
+
+        public void removeMapping(String prefix) {
+            prefixToNamespaceMapping.remove(prefix);
+        }
+    }
+
+    protected static class NameValuePair implements Map.Entry {
+        private Object key;
+
+        private Object value;
+
+        public NameValuePair(Object key, Object value) {
+            this.key = key;
+            this.value = value;
+        }
+
+        public Object getKey() {
+            return key;
+        }
+
+        public Object getValue() {
+            return value;
+        }
+
+        public Object setValue(Object value) {
+            Object v = this.value;
+            this.value = value;
+            return v;
+        }
+
+    }
+
+    private static boolean isTransient(Property property, Object type) {
+        // HACK: We need some SDOUtil extension to understand a property is
+        // derived
+        EStructuralFeature feature = (EStructuralFeature)property;
+        if (ExtendedMetaData.INSTANCE.getGroup(feature) != null) {
+            return false;
+        }
+        feature = ExtendedMetaData.INSTANCE.getAffiliation((EClass)type, feature);
+        if (feature != null && feature != property) {
+            return false;
+        }
+        if (property instanceof ReferenceImpl) {
+            ReferenceImpl r = (ReferenceImpl)property;
+            if (r.isTransient()) {
+                return true;
+            }
+            EReference opposite = r.getEOpposite();
+            if (opposite != null && opposite.isContainment()) {
+                return true;
+            }
+        } else if (property instanceof AttributeImpl) {
+            AttributeImpl a = (AttributeImpl)property;
+            if (a.isTransient()) {
+                return true;
+            }
+            EDataType d = (EDataType)a.getEType();
+            if (!d.isSerializable()) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private void addListValue(List<NameValuePair> propertyList,
+                              List<DataObject> children,
+                              Property property,
+                              List objList) throws XMLStreamException {
+        if (objList != null) {
+            for (int j = 0; j < objList.size(); j++) {
+                Object object = objList.get(j);
+                addSingleValue(propertyList, children, property, object);
+            }
+        }
+    }
+
+    private void addProperty(List<NameValuePair> propertyList,
+                             List<DataObject> children,
+                             Property property,
+                             Object value,
+                             DataObject dataObject) throws XMLStreamException {
+
+        if (property.isMany() && property.getContainingType().isOpen() && value instanceof Sequence) {
+            addSequenceValue(propertyList, children, (Sequence)value);
+        } else if (SDOUtil.isMany(property, dataObject) && value instanceof List) {
+            addListValue(propertyList, children, property, (List)value);
+        } else {
+            // Complex Type
+            addSingleValue(propertyList, children, property, value);
+        }
+    }
+
+    private void addSequenceValue(List<NameValuePair> elements, List<DataObject> children, Sequence seq)
+        throws XMLStreamException {
+        if (seq != null && seq.size() > 0) {
+            for (int j = 0; j < seq.size(); j++) {
+                Object o = seq.getValue(j);
+                Property p = seq.getProperty(j);
+                addSingleValue(elements, children, p, o);
+            }
+        }
+    }
+
+    private void addSingleValue(List<NameValuePair> propertyList,
+                                List<DataObject> children,
+                                Property property,
+                                Object value) throws XMLStreamException {
+        String uri = xsdHelper.getNamespaceURI(property);
+        String name = xsdHelper.getLocalName(property);
+        QName qname = namespaceContext.createQName(uri, name);
+        Type propertyType = property.getType();
+
+        if (property.getName().equals("value") && uri == null && name.equals(":0")) {
+            propertyList.add(new NameValuePair(ELEMENT_TEXT, value.toString()));
+        } else if (value == null) {
+            NameValuePair entry = new NameValuePair(qname, null);
+            propertyList.add(entry);
+        } else if (propertyType.isDataType()) {
+            NameValuePair entry = new NameValuePair(qname, SDOUtil.convertToString(propertyType, value));
+            propertyList.add(entry);
+        } else {
+            children.add((DataObject)value);
+        }
+    }
+
+    private void registerNamespace(String prefix, String uri) {
+        if (!uri.equals(namespaceContext.getNamespaceURI(prefix))) {
+            namespaceContext.registerMapping(prefix, uri);
+            declaredNamespaceMap.put(prefix, uri);
+        }
+    }
+
+    public void serialize() throws XMLStreamException {
+        xmlWriter.setNamespaceContext(namespaceContext);
+        writeDataObject(rootDataObject, rootElementName, rootElementURI);
+        xmlWriter.flush();
+    }
+
+    private void writeDataObject(DataObject obj, String elementName, String elementURI) throws XMLStreamException {
+        List<NameValuePair> elementList = new ArrayList<NameValuePair>();
+        List<DataObject> children = new ArrayList<DataObject>();
+        List<NameValuePair> attributes = new ArrayList<NameValuePair>();
+
+        String typeName;
+        QName realTypeName = null;
+
+        if (elementName != null) {
+            realTypeName = namespaceContext.createQName(elementURI, elementName);
+            String typeQName = realTypeName.getPrefix() + ":" + realTypeName.getLocalPart();
+            declaredNamespaceMap.put(realTypeName.getPrefix(), realTypeName.getNamespaceURI());
+            attributes.add(new NameValuePair(XSI_TYPE_QNAME, typeQName));
+            registerNamespace(XSI_TYPE_QNAME.getPrefix(), XSI_TYPE_QNAME.getNamespaceURI());
+        } else {
+
+            typeName = xsdHelper.getLocalName(obj.getContainmentProperty());
+            realTypeName = namespaceContext.createQName(obj.getType().getURI(), typeName);
+            registerNamespace(realTypeName.getPrefix(), realTypeName.getNamespaceURI());
+        }
+
+        registerNamespace(realTypeName.getPrefix(), realTypeName.getNamespaceURI());
+
+        if (obj.getType().isSequenced()) {
+            Sequence sequence = obj.getSequence();
+            for (int i = 0; i < sequence.size(); i++) {
+                Property property = sequence.getProperty(i);
+                Object value = sequence.getValue(i);
+                if (property == null) {
+                    elementList.add(new NameValuePair(ELEMENT_TEXT, value));
+                } else {
+                    addProperty(elementList, children, property, value, obj);
+                }
+            }
+
+            // Attributes are not in the sequence
+            List properties = obj.getInstanceProperties();
+            for (Iterator i = properties.iterator(); i.hasNext();) {
+                Property property = (Property)i.next();
+                if (xsdHelper.isAttribute(property) && obj.isSet(property) && !isTransient(property, obj.getType())) {
+                    Object value = obj.get(property);
+                    QName name =
+                        namespaceContext.createQName(xsdHelper.getNamespaceURI(property), xsdHelper
+                            .getLocalName(property));
+                    attributes.add(new NameValuePair(name, SDOUtil.convertToString(property.getType(), value)));
+                }
+            }
+        } else {
+            Iterator i = obj.getInstanceProperties().iterator();
+            while (i.hasNext()) {
+                Property p = (Property)i.next();
+                if (obj.isSet(p) && !isTransient(p, obj.getType())) {
+                    Object value = obj.get(p);
+                    if (xsdHelper.isAttribute(p)) {
+                        QName name =
+                            namespaceContext.createQName(xsdHelper.getNamespaceURI(p), xsdHelper.getLocalName(p));
+                        attributes.add(new NameValuePair(name, SDOUtil.convertToString(p.getType(), value)));
+                    } else {
+                        addProperty(elementList, children, p, value, obj);
+                    }
+                }
+            }
+        }
+
+        String prefix = realTypeName.getPrefix();
+        String nameSpaceName = realTypeName.getNamespaceURI();
+
+        if (nameSpaceName != null) {
+            String writerPrefix = xmlWriter.getPrefix(nameSpaceName);
+            if (writerPrefix != null) {
+                xmlWriter.writeStartElement(nameSpaceName, realTypeName.getLocalPart());
+            } else {
+                if (prefix != null) {
+                    xmlWriter.writeStartElement(prefix, realTypeName.getLocalPart(), nameSpaceName);
+                    xmlWriter.writeNamespace(prefix, nameSpaceName);
+                    xmlWriter.setPrefix(prefix, nameSpaceName);
+                } else {
+                    xmlWriter.writeStartElement(nameSpaceName, realTypeName.getLocalPart());
+                    xmlWriter.writeDefaultNamespace(nameSpaceName);
+                    xmlWriter.setDefaultNamespace(nameSpaceName);
+                }
+            }
+        } else {
+            xmlWriter.writeStartElement(realTypeName.getLocalPart());
+        }
+
+        for (NameValuePair pair : attributes) {
+            QName name = (QName)pair.getKey();
+            assert namespaceContext.getPrefix(name.getPrefix()).equals(name.getNamespaceURI());
+            xmlWriter.writeAttribute(name.getPrefix(), name.getNamespaceURI(), name.getLocalPart(), (String)pair
+                .getValue());
+        }
+
+        for (NameValuePair pair : elementList) {
+            if (ELEMENT_TEXT.equals(pair.getKey().toString())) {
+                xmlWriter.writeCharacters((String)pair.getValue());
+            } else {
+                QName name = (QName)pair.getKey();
+                xmlWriter.writeStartElement(name.getPrefix(), name.getLocalPart(), name.getNamespaceURI());
+                xmlWriter.writeCharacters((String)pair.getValue());
+                xmlWriter.writeEndElement();
+            }
+        }
+
+        for (DataObject child : children) {
+            writeDataObject(child, null, null);
+        }
+        xmlWriter.writeEndElement();
+
+    }
+
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/SDODataSource.java b/branches/sca-java-0.91/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/SDODataSource.java
new file mode 100644
index 0000000000..96d0ee563c
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/SDODataSource.java
@@ -0,0 +1,85 @@
+/*
+ * 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.sdo2om;
+
+import static org.apache.tuscany.sca.databinding.sdo.SDODataBinding.ROOT_ELEMENT;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.Writer;
+
+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.impl.serialize.StreamingOMSerializer;
+import org.apache.tuscany.sdo.helper.XMLStreamHelper;
+import org.apache.tuscany.sdo.util.SDOUtil;
+
+import commonj.sdo.DataObject;
+import commonj.sdo.helper.HelperContext;
+import commonj.sdo.helper.XMLDocument;
+
+public class SDODataSource implements OMDataSource {
+    private HelperContext helperContext;
+    private XMLDocument sourceDocument;
+
+    public SDODataSource(XMLDocument source, HelperContext helperContext) {
+        this.sourceDocument = source;
+        this.helperContext = helperContext;
+    }
+
+    public SDODataSource(DataObject obj, HelperContext helperContext) {
+        this.helperContext = helperContext;
+        this.sourceDocument =
+            helperContext.getXMLHelper().createDocument(obj,
+                                                        ROOT_ELEMENT.getNamespaceURI(),
+                                                        ROOT_ELEMENT.getLocalPart());
+    }
+
+    public XMLStreamReader getReader() throws XMLStreamException {
+        XMLStreamHelper streamHelper = SDOUtil.createXMLStreamHelper(helperContext.getTypeHelper());
+        return streamHelper.createXMLStreamReader(sourceDocument);
+    }
+
+    public void serialize(XMLStreamWriter xmlWriter) throws XMLStreamException {
+        StreamingOMSerializer serializer = new StreamingOMSerializer();
+        serializer.serialize(getReader(), xmlWriter);
+    }
+
+    public void serialize(OutputStream output, OMOutputFormat format) throws XMLStreamException {
+        try {
+            helperContext.getXMLHelper().save(sourceDocument, output, null);
+        } catch (Exception e) {
+            throw new XMLStreamException(e);
+        }
+    }
+
+    public void serialize(Writer writer, OMOutputFormat format) throws XMLStreamException {
+        try {
+            helperContext.getXMLHelper().save(sourceDocument, writer, null);
+        } catch (IOException e) {
+            throw new XMLStreamException(e);
+        }
+    }
+
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/XMLDocument2OMElement.java b/branches/sca-java-0.91/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/XMLDocument2OMElement.java
new file mode 100644
index 0000000000..d6ae818f31
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/XMLDocument2OMElement.java
@@ -0,0 +1,61 @@
+/*
+ * 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.sdo2om;
+
+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.impl.BaseTransformer;
+import org.apache.tuscany.sca.databinding.sdo.SDOContextHelper;
+
+import commonj.sdo.helper.HelperContext;
+import commonj.sdo.helper.XMLDocument;
+
+/**
+ * SDO XMLDocument --> AXIOM OMElement transformer
+ * @version $Rev$ $Date$
+ */
+public class XMLDocument2OMElement extends BaseTransformer<XMLDocument, OMElement> implements
+    PullTransformer<XMLDocument, OMElement> {
+
+    public OMElement transform(XMLDocument source, TransformationContext context) {
+        HelperContext helperContext = SDOContextHelper.getHelperContext(context);
+        SDODataSource dataSource = new SDODataSource(source, helperContext);
+        OMFactory factory = OMAbstractFactory.getOMFactory();
+        OMNamespace namespace = factory.createOMNamespace(source.getRootElementURI(), source.getRootElementName());
+        OMElement element = factory.createOMElement(dataSource, source.getRootElementName(), namespace);
+        return element;
+    }
+
+    public Class getSourceType() {
+        return XMLDocument.class;
+    }
+
+    public Class getTargetType() {
+        return OMElement.class;
+    }
+
+    public int getWeight() {
+        return 10;
+    }
+
+}
diff --git a/branches/sca-java-0.91/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/module/SDOAxiomModuleActivator.java b/branches/sca-java-0.91/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/module/SDOAxiomModuleActivator.java
new file mode 100644
index 0000000000..dc9ecdafae
--- /dev/null
+++ b/branches/sca-java-0.91/modules/databinding-sdo-axiom/src/main/java/org/apache/tuscany/sca/databinding/sdo2om/module/SDOAxiomModuleActivator.java
@@ -0,0 +1,48 @@
+/*
+ * 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.sdo2om.module;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.ModuleActivator;
+import org.apache.tuscany.sca.databinding.TransformerExtensionPoint;
+import org.apache.tuscany.sca.databinding.sdo2om.DataObject2OMElement;
+import org.apache.tuscany.sca.databinding.sdo2om.XMLDocument2OMElement;
+
+/**
+ * Module activator for SDO/AXIOM databinding
+ * 
+ * @version $Rev$ $Date$
+ */
+public class SDOAxiomModuleActivator implements ModuleActivator {
+
+    public Object[] getExtensionPoints() {
+        return null;
+    }
+
+    public void start(ExtensionPointRegistry registry) {
+        TransformerExtensionPoint transformers = registry.getExtensionPoint(TransformerExtensionPoint.class);
+        transformers.addTransformer(new DataObject2OMElement());
+        transformers.addTransformer(new XMLDocument2OMElement());
+    }
+
+    public void stop(ExtensionPointRegistry registry) {
+    }
+
+}