Move Tuscany from Incubator to top level.

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

12 files changed, 1061 insertions, 0 deletions

diff --git a/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/JSON2XMLStreamReader.java b/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/JSON2XMLStreamReader.java
new file mode 100644
index 0000000000..e48e8dbf27
--- /dev/null
+++ b/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/JSON2XMLStreamReader.java
@@ -0,0 +1,62 @@
+/*
+ * 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.json;
+
+import javax.xml.stream.XMLStreamReader;
+
+import org.apache.tuscany.spi.databinding.PullTransformer;
+import org.apache.tuscany.spi.databinding.TransformationContext;
+import org.apache.tuscany.spi.databinding.TransformationException;
+import org.apache.tuscany.spi.databinding.Transformer;
+import org.apache.tuscany.spi.databinding.extension.TransformerExtension;
+import org.codehaus.jettison.badgerfish.BadgerFishXMLStreamReader;
+import org.json.JSONObject;
+import org.osoa.sca.annotations.Service;
+
+/**
+ * @version $Rev$ $Date$
+ */
+@Service(Transformer.class)
+public class JSON2XMLStreamReader extends TransformerExtension<JSONObject, XMLStreamReader> implements
+    PullTransformer<JSONObject, XMLStreamReader> {
+    
+    @Override
+    protected Class getSourceType() {
+        return JSONObject.class;
+    }
+
+    @Override
+    protected Class getTargetType() {
+        return XMLStreamReader.class;
+    }
+
+    public XMLStreamReader transform(JSONObject source, TransformationContext context) {
+        try {
+            return new BadgerFishXMLStreamReader(source);
+        } catch (Exception e) {
+            throw new TransformationException(e);
+        } 
+    }
+
+    public int getWeight() {
+        return 10;
+    }
+
+}
diff --git a/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/JSONDataBinding.java b/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/JSONDataBinding.java
new file mode 100644
index 0000000000..2cc8c1da37
--- /dev/null
+++ b/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/JSONDataBinding.java
@@ -0,0 +1,52 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.databinding.json;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.spi.databinding.extension.DataBindingExtension;
+import org.json.JSONObject;
+
+/**
+ * JAXB DataBinding
+ */
+public class JSONDataBinding extends DataBindingExtension {
+    public static final String NAME = JSONObject.class.getName();
+    public static final String[] ALIASES = new String[] {"json"};
+
+    public static final String ROOT_NAMESPACE = "http://tuscany.apache.org/xmlns/sca/databinding/json/1.0";
+    public static final QName ROOT_ELEMENT = new QName(ROOT_NAMESPACE, "root");
+
+    public JSONDataBinding() {
+        super(NAME, ALIASES, JSONObject.class);
+    }
+
+    @SuppressWarnings("unchecked")
+    @Override
+    public Object copy(Object arg) {
+        try {
+            JSONObject src = (JSONObject)arg;
+            return new JSONObject(src.toString());
+        } catch (Exception e) {
+            throw new IllegalArgumentException(e);
+        }
+    }
+
+}
diff --git a/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/XMLStreamReader2JSON.java b/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/XMLStreamReader2JSON.java
new file mode 100644
index 0000000000..872fe1cff3
--- /dev/null
+++ b/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/XMLStreamReader2JSON.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.databinding.json;
+
+import java.io.StringWriter;
+
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.tuscany.spi.databinding.PullTransformer;
+import org.apache.tuscany.spi.databinding.TransformationContext;
+import org.apache.tuscany.spi.databinding.TransformationException;
+import org.apache.tuscany.spi.databinding.Transformer;
+import org.apache.tuscany.spi.databinding.extension.TransformerExtension;
+import org.codehaus.jettison.badgerfish.BadgerFishXMLStreamWriter;
+import org.json.JSONObject;
+import org.osoa.sca.annotations.Service;
+
+/**
+ * @version $Rev$ $Date$
+ */
+@Service(Transformer.class)
+public class XMLStreamReader2JSON extends TransformerExtension<XMLStreamReader, JSONObject> implements
+    PullTransformer<XMLStreamReader, JSONObject> {
+    
+    @Override
+    protected Class getSourceType() {
+        return XMLStreamReader.class;
+    }
+
+    @Override
+    protected Class getTargetType() {
+        return JSONObject.class;
+    }
+
+    public JSONObject transform(XMLStreamReader source, TransformationContext context) {
+        try {
+            StringWriter writer = new StringWriter();
+            XMLStreamWriter jsonWriter = new BadgerFishXMLStreamWriter(writer);
+            XMLStreamSerializer serializer = new XMLStreamSerializer();
+            serializer.serialize(source, jsonWriter);
+            return new JSONObject(writer.toString());
+        } catch (Exception e) {
+            throw new TransformationException(e);
+        } 
+    }
+
+    public int getWeight() {
+        return 10;
+    }
+
+}
diff --git a/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/XMLStreamSerializer.java b/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/XMLStreamSerializer.java
new file mode 100644
index 0000000000..74c39cba0f
--- /dev/null
+++ b/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/XMLStreamSerializer.java
@@ -0,0 +1,272 @@
+package org.apache.tuscany.databinding.json;
+
+import javax.xml.namespace.NamespaceContext;
+import javax.xml.stream.XMLStreamConstants;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+/**
+ * The XMLStreamSerializer pulls events from the XMLStreamReader and dumps into the XMLStreamWriter
+ */
+public class XMLStreamSerializer implements XMLStreamConstants {
+    public static final String NAMESPACE_PREFIX = "ns";
+    private static int namespaceSuffix;
+
+    /*
+     * The behavior of the serializer is such that it returns when it encounters the starting element for the second
+     * time. The depth variable tracks the depth of the serilizer and tells it when to return. Note that it is assumed
+     * that this serialization starts on an Element.
+     */
+
+    /**
+     * Field depth
+     */
+    private int depth;
+
+    /**
+     * Generates a unique namespace prefix that is not in the scope of the NamespaceContext
+     * 
+     * @param nsCtxt
+     * @return string
+     */
+    private String generateUniquePrefix(NamespaceContext nsCtxt) {
+        String prefix = NAMESPACE_PREFIX + namespaceSuffix++;
+        // null should be returned if the prefix is not bound!
+        while (nsCtxt.getNamespaceURI(prefix) != null) {
+            prefix = NAMESPACE_PREFIX + namespaceSuffix++;
+        }
+
+        return prefix;
+    }
+
+    /**
+     * Method serialize.
+     * 
+     * @param node
+     * @param writer
+     * @throws XMLStreamException
+     */
+    public void serialize(XMLStreamReader node, XMLStreamWriter writer) throws XMLStreamException {
+        serializeNode(node, writer);
+    }
+
+    /**
+     * @param reader
+     * @param writer
+     * @throws XMLStreamException
+     */
+    protected void serializeAttributes(XMLStreamReader reader, XMLStreamWriter writer) throws XMLStreamException {
+        int count = reader.getAttributeCount();
+        String prefix;
+        String namespaceName;
+        String writerPrefix;
+        for (int i = 0; i < count; i++) {
+            prefix = reader.getAttributePrefix(i);
+            namespaceName = reader.getAttributeNamespace(i);
+            /*
+             * Due to parser implementations returning null as the namespace URI (for the empty namespace) we need to
+             * make sure that we deal with a namespace name that is not null. The best way to work around this issue is
+             * to set the namespace uri to "" if it is null
+             */
+            if (namespaceName == null) {
+                namespaceName = "";
+            }
+
+            writerPrefix = writer.getNamespaceContext().getPrefix(namespaceName);
+
+            if (!"".equals(namespaceName)) {
+                // prefix has already being declared but this particular
+                // attrib has a
+                // no prefix attached. So use the prefix provided by the
+                // writer
+                if (writerPrefix != null && (prefix == null || prefix.equals(""))) {
+                    writer.writeAttribute(writerPrefix, namespaceName, reader.getAttributeLocalName(i), reader
+                        .getAttributeValue(i));
+
+                    // writer prefix is available but different from the
+                    // current
+                    // prefix of the attrib. We should be decalring the new
+                    // prefix
+                    // as a namespace declaration
+                } else if (prefix != null && !"".equals(prefix) && !prefix.equals(writerPrefix)) {
+                    writer.writeNamespace(prefix, namespaceName);
+                    writer.writeAttribute(prefix, namespaceName, reader.getAttributeLocalName(i), reader
+                        .getAttributeValue(i));
+
+                    // prefix is null (or empty), but the namespace name is
+                    // valid! it has not
+                    // being written previously also. So we need to generate
+                    // a prefix
+                    // here
+                } else if (prefix == null || prefix.equals("")) {
+                    prefix = generateUniquePrefix(writer.getNamespaceContext());
+                    writer.writeNamespace(prefix, namespaceName);
+                    writer.writeAttribute(prefix, namespaceName, reader.getAttributeLocalName(i), reader
+                        .getAttributeValue(i));
+                } else {
+                    writer.writeAttribute(prefix, namespaceName, reader.getAttributeLocalName(i), reader
+                        .getAttributeValue(i));
+                }
+            } else {
+                // empty namespace is equal to no namespace!
+                writer.writeAttribute(reader.getAttributeLocalName(i), reader.getAttributeValue(i));
+            }
+
+        }
+    }
+
+    /**
+     * Method serializeCData.
+     * 
+     * @param reader
+     * @param writer
+     * @throws XMLStreamException
+     */
+    protected void serializeCData(XMLStreamReader reader, XMLStreamWriter writer) throws XMLStreamException {
+        writer.writeCData(reader.getText());
+    }
+
+    /**
+     * Method serializeComment.
+     * 
+     * @param reader
+     * @param writer
+     * @throws XMLStreamException
+     */
+    protected void serializeComment(XMLStreamReader reader, XMLStreamWriter writer) throws XMLStreamException {
+        writer.writeComment(reader.getText());
+    }
+
+    /**
+     * @param reader
+     * @param writer
+     * @throws XMLStreamException
+     */
+    protected void serializeElement(XMLStreamReader reader, XMLStreamWriter writer) throws XMLStreamException {
+        String prefix = reader.getPrefix();
+        String nameSpaceName = reader.getNamespaceURI();
+        if (nameSpaceName != null) {
+            String writerPrefix = writer.getPrefix(nameSpaceName);
+            if (writerPrefix != null) {
+                writer.writeStartElement(nameSpaceName, reader.getLocalName());
+            } else {
+                if (prefix != null) {
+                    writer.writeStartElement(prefix, reader.getLocalName(), nameSpaceName);
+                    writer.writeNamespace(prefix, nameSpaceName);
+                    writer.setPrefix(prefix, nameSpaceName);
+                } else {
+                    // [rfeng] We need to set default NS 1st before calling writeStateElement
+                    writer.setDefaultNamespace(nameSpaceName);
+                    writer.writeStartElement(nameSpaceName, reader.getLocalName());
+                    writer.writeDefaultNamespace(nameSpaceName);
+                }
+            }
+        } else {
+            writer.writeStartElement(reader.getLocalName());
+        }
+
+        // add the namespaces
+        int count = reader.getNamespaceCount();
+        String namespacePrefix;
+        for (int i = 0; i < count; i++) {
+            namespacePrefix = reader.getNamespacePrefix(i);
+            // [rfeng] The following is commented out to allow to default ns
+            // if (namespacePrefix != null && namespacePrefix.length() == 0) {
+            // continue;
+            // }
+
+            serializeNamespace(namespacePrefix, reader.getNamespaceURI(i), writer);
+        }
+
+        // add attributes
+        serializeAttributes(reader, writer);
+
+    }
+
+    /**
+     * Method serializeEndElement.
+     * 
+     * @param writer
+     * @throws XMLStreamException
+     */
+    protected void serializeEndElement(XMLStreamWriter writer) throws XMLStreamException {
+        writer.writeEndElement();
+    }
+
+    /**
+     * Method serializeNamespace.
+     * 
+     * @param prefix
+     * @param uri
+     * @param writer
+     * @throws XMLStreamException
+     */
+    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);
+        }
+    }
+
+    /**
+     * Method serializeNode.
+     * 
+     * @param reader
+     * @param writer
+     * @throws XMLStreamException
+     */
+    protected void serializeNode(XMLStreamReader reader, XMLStreamWriter writer) throws XMLStreamException {
+        // TODO We get the StAXWriter at this point and uses it hereafter
+        // assuming that this is the only entry point
+        // to this class.
+        // If there can be other classes calling methodes of this we might
+        // need to change methode signatures to
+        // OMOutputer
+        while (true) {
+            int event = reader.getEventType();
+            if (event == START_ELEMENT) {
+                serializeElement(reader, writer);
+                depth++;
+            } else if (event == ATTRIBUTE) {
+                serializeAttributes(reader, writer);
+            } else if (event == CHARACTERS) {
+                serializeText(reader, writer);
+            } else if (event == COMMENT) {
+                serializeComment(reader, writer);
+            } else if (event == CDATA) {
+                serializeCData(reader, writer);
+            } else if (event == END_ELEMENT) {
+                serializeEndElement(writer);
+                depth--;
+            } else if (event == START_DOCUMENT) {
+                depth++; // if a start document is found then increment
+                writer.writeStartDocument();
+                // the depth
+            } else if (event == END_DOCUMENT) {
+                if (depth != 0) {
+                    depth--; // for the end document - reduce the depth
+                }
+                writer.writeEndDocument();
+            }
+            if (depth == 0) {
+                break;
+            }
+            if (reader.hasNext()) {
+                reader.next();
+            } else {
+                break;
+            }
+        }
+    }
+
+    /**
+     * @param reader
+     * @param writer
+     * @throws XMLStreamException
+     */
+    protected void serializeText(XMLStreamReader reader, XMLStreamWriter writer) throws XMLStreamException {
+        writer.writeCharacters(reader.getText());
+    }
+}
diff --git a/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/axiom/JSON2OMElement.java b/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/axiom/JSON2OMElement.java
new file mode 100644
index 0000000000..2856873d7c
--- /dev/null
+++ b/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/axiom/JSON2OMElement.java
@@ -0,0 +1,83 @@
+/*
+ * 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.json.axiom;
+
+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.databinding.json.JSONDataBinding;
+import org.apache.tuscany.spi.databinding.PullTransformer;
+import org.apache.tuscany.spi.databinding.TransformationContext;
+import org.apache.tuscany.spi.databinding.TransformationException;
+import org.apache.tuscany.spi.databinding.Transformer;
+import org.apache.tuscany.spi.databinding.extension.TransformerExtension;
+import org.apache.tuscany.spi.model.DataType;
+import org.apache.tuscany.spi.model.XMLType;
+import org.json.JSONObject;
+import org.osoa.sca.annotations.Service;
+
+/**
+ * @version $Rev$ $Date$
+ */
+@Service(Transformer.class)
+public class JSON2OMElement extends TransformerExtension<JSONObject, OMElement> implements
+    PullTransformer<JSONObject, OMElement> {
+
+    private OMFactory factory = OMAbstractFactory.getOMFactory();
+
+    @Override
+    protected Class getSourceType() {
+        return JSONObject.class;
+    }
+
+    @Override
+    protected Class getTargetType() {
+        return OMElement.class;
+    }
+
+    public OMElement transform(JSONObject source, TransformationContext context) {
+        try {
+            String ns = JSONDataBinding.ROOT_ELEMENT.getNamespaceURI();
+            String name = JSONDataBinding.ROOT_ELEMENT.getLocalPart();
+            if (context != null) {
+                DataType<?> dataType = context.getTargetDataType();
+                Object logical = dataType.getLogical();
+                if (logical instanceof XMLType) {
+                    XMLType xmlType = (XMLType)logical;
+                    if (xmlType.isElement()) {
+                        ns = xmlType.getElementName().getNamespaceURI();
+                        name = xmlType.getElementName().getLocalPart();
+                    }
+                }
+            }
+            JSONBadgerfishDataSource ds = new JSONBadgerfishDataSource(source);
+            OMNamespace namespace = factory.createOMNamespace(ns, "");
+            return factory.createOMElement(ds, name, namespace);
+        } catch (Exception e) {
+            throw new TransformationException(e);
+        }
+    }
+
+    public int getWeight() {
+        return 10;
+    }
+
+}
diff --git a/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/axiom/JSONBadgerfishDataSource.java b/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/axiom/JSONBadgerfishDataSource.java
new file mode 100644
index 0000000000..22476b10af
--- /dev/null
+++ b/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/axiom/JSONBadgerfishDataSource.java
@@ -0,0 +1,56 @@
+/*
+ * 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.json.axiom;
+
+import javax.xml.stream.XMLStreamException;
+
+import org.codehaus.jettison.badgerfish.BadgerFishXMLStreamReader;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+/**
+ * JSONDataSource keeps the JSON String inside and consumes it when needed. This is to be kept in the
+ * OMSourcedElementImpl and can be used either to expand the tree or get the JSON String directly without expanding.
+ * This uses the "Badgerfish" JSON convention.
+ * 
+ * @version $Rev$ $Date$
+ */
+
+public class JSONBadgerfishDataSource extends JSONDataSource {
+
+    public JSONBadgerfishDataSource(JSONObject json) {
+        super(json);
+    }
+
+    /**
+     * Gives the StAX reader using the "Badgerfish" formatted input JSON String.
+     * 
+     * @return The XMLStreamReader according to the JSON String.
+     * @throws javax.xml.stream.XMLStreamException if there is an error while making the StAX reader.
+     */
+    public javax.xml.stream.XMLStreamReader getReader() throws XMLStreamException {
+        try {
+            return new BadgerFishXMLStreamReader(json);
+        } catch (JSONException e) {
+            throw new XMLStreamException(e);
+        }
+
+    }
+}
diff --git a/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/axiom/JSONDataSource.java b/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/axiom/JSONDataSource.java
new file mode 100644
index 0000000000..744c5a407e
--- /dev/null
+++ b/sandbox/old/contrib/databinding-json/src/main/java/org/apache/tuscany/databinding/json/axiom/JSONDataSource.java
@@ -0,0 +1,174 @@
+/*
+ * 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.json.axiom;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.Writer;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.xml.stream.XMLStreamConstants;
+import javax.xml.stream.XMLStreamReader;
+
+import org.apache.axiom.om.OMDataSource;
+import org.apache.axiom.om.OMException;
+import org.apache.axiom.om.OMOutputFormat;
+import org.codehaus.jettison.mapped.MappedXMLInputFactory;
+import org.json.JSONObject;
+import org.json.JSONTokener;
+
+/**
+ * JSONDataSource keeps the JSON String inside and consumes it when needed. This is to be kept in the
+ * OMSourcedElementImpl and can be used either to expand the tree or get the JSON String directly without expanding.
+ * This uses the "Mapped" JSON convention.
+ */
+
+public class JSONDataSource implements OMDataSource {
+    protected JSONObject json;
+
+    public JSONDataSource(JSONObject json) {
+        this.json = json;
+    }
+
+    /**
+     * Writes JSON into the output stream. As this should write JSON, it directly gets the JSON string and writes it
+     * without expanding the tree.
+     * 
+     * @param outputStream the stream to be written into
+     * @param omOutputFormat format of the message, this is ignored.
+     * @throws javax.xml.stream.XMLStreamException if there is an error while writing the message in to the output
+     *             stream.
+     */
+    public void serialize(OutputStream outputStream, OMOutputFormat omOutputFormat)
+        throws javax.xml.stream.XMLStreamException {
+        try {
+            String encoding = omOutputFormat == null ? "UTF-8" : omOutputFormat.getCharSetEncoding();
+            outputStream.write(getJSONString().getBytes(encoding));
+        } catch (IOException e) {
+            throw new OMException();
+        }
+    }
+
+    /**
+     * Writes JSON through the writer. As this should write JSON, it directly gets the JSON string and writes it without
+     * expanding the tree.
+     * 
+     * @param writer Writer to be written into
+     * @param omOutputFormat format of the message, this is ignored.
+     * @throws javax.xml.stream.XMLStreamException if there is an error while writing the message through the writer.
+     */
+    public void serialize(Writer writer, OMOutputFormat omOutputFormat) throws javax.xml.stream.XMLStreamException {
+        try {
+            writer.write(getJSONString());
+        } catch (IOException e) {
+            throw new OMException();
+        }
+    }
+
+    /**
+     * Writes XML through the XMLStreamWriter. As the input data source is JSON, this method needs to get a StAX reader
+     * from that JSON String. Therefore this uses the getReader() method to get the StAX reader writes the events into
+     * the XMLStreamWriter.
+     * 
+     * @param xmlStreamWriter StAX writer to be written into
+     * @throws javax.xml.stream.XMLStreamException if there is an error while writing the message through the StAX
+     *             writer.
+     */
+    public void serialize(javax.xml.stream.XMLStreamWriter xmlStreamWriter) throws javax.xml.stream.XMLStreamException {
+        XMLStreamReader reader = getReader();
+        xmlStreamWriter.writeStartDocument();
+        while (reader.hasNext()) {
+            int x = reader.next();
+            switch (x) {
+                case XMLStreamConstants.START_ELEMENT:
+                    xmlStreamWriter.writeStartElement(reader.getPrefix(), reader.getLocalName(), reader
+                        .getNamespaceURI());
+                    int namespaceCount = reader.getNamespaceCount();
+                    for (int i = namespaceCount - 1; i >= 0; i--) {
+                        xmlStreamWriter.writeNamespace(reader.getNamespacePrefix(i), reader.getNamespaceURI(i));
+                    }
+                    int attributeCount = reader.getAttributeCount();
+                    for (int i = 0; i < attributeCount; i++) {
+                        xmlStreamWriter.writeAttribute(reader.getAttributePrefix(i),
+                                                       reader.getAttributeNamespace(i),
+                                                       reader.getAttributeLocalName(i),
+                                                       reader.getAttributeValue(i));
+                    }
+                    break;
+                case XMLStreamConstants.START_DOCUMENT:
+                    break;
+                case XMLStreamConstants.CHARACTERS:
+                    xmlStreamWriter.writeCharacters(reader.getText());
+                    break;
+                case XMLStreamConstants.CDATA:
+                    xmlStreamWriter.writeCData(reader.getText());
+                    break;
+                case XMLStreamConstants.END_ELEMENT:
+                    xmlStreamWriter.writeEndElement();
+                    break;
+                case XMLStreamConstants.END_DOCUMENT:
+                    xmlStreamWriter.writeEndDocument();
+                    break;
+                case XMLStreamConstants.SPACE:
+                    break;
+                case XMLStreamConstants.COMMENT:
+                    xmlStreamWriter.writeComment(reader.getText());
+                    break;
+                case XMLStreamConstants.DTD:
+                    xmlStreamWriter.writeDTD(reader.getText());
+                    break;
+                case XMLStreamConstants.PROCESSING_INSTRUCTION:
+                    xmlStreamWriter.writeProcessingInstruction(reader.getPITarget(), reader.getPIData());
+                    break;
+                case XMLStreamConstants.ENTITY_REFERENCE:
+                    xmlStreamWriter.writeEntityRef(reader.getLocalName());
+                    break;
+                default:
+                    throw new OMException();
+            }
+        }
+        xmlStreamWriter.writeEndDocument();
+    }
+
+    /**
+     * Gives the StAX reader using the "Mapped" formatted input JSON String.
+     * 
+     * @return The XMLStreamReader according to the JSON String.
+     * @throws javax.xml.stream.XMLStreamException if there is an error while making the StAX reader.
+     */
+
+    public javax.xml.stream.XMLStreamReader getReader() throws javax.xml.stream.XMLStreamException {
+
+        Map<String, String> nsMap = new HashMap<String, String>();
+        nsMap.put("", "");
+
+        // input factory for "Mapped" convention
+        MappedXMLInputFactory inputFactory = new MappedXMLInputFactory(nsMap);
+        String jsonString = this.getJSONString();
+        return inputFactory.createXMLStreamReader(new JSONTokener(jsonString));
+    }
+
+    // returns the json string by consuming the JSON input stream.
+    protected String getJSONString() {
+        return json.toString();
+    }
+
+}
diff --git a/sandbox/old/contrib/databinding-json/src/main/resources/META-INF/sca/databinding.json.scdl b/sandbox/old/contrib/databinding-json/src/main/resources/META-INF/sca/databinding.json.scdl
new file mode 100644
index 0000000000..42a110ec3f
--- /dev/null
+++ b/sandbox/old/contrib/databinding-json/src/main/resources/META-INF/sca/databinding.json.scdl
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>

+<!--

+ * 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.    

+-->

+<composite xmlns="http://www.osoa.org/xmlns/sca/1.0" xmlns:system="http://tuscany.apache.org/xmlns/sca/system/2.0-alpha"

+    name="org.apache.tuscany.databinding.json.include" autowire="true">

+

+    <component name="databinding.XMLBeans">

+        <system:implementation.system class="org.apache.tuscany.databinding.json.XMLBeansDataBinding" />

+    </component>

+

+    <component name="transformer.XMLStreamReader2XmlObject">

+        <system:implementation.system class="org.apache.tuscany.databinding.json.XMLStreamReader2XmlObject" />

+    </component>

+    

+    <component name="transformer.Node2XmlObject">

+        <system:implementation.system class="org.apache.tuscany.databinding.json.Node2XmlObject" />

+    </component>

+    

+    <component name="transformer.XmlObject2Node">

+        <system:implementation.system class="org.apache.tuscany.databinding.json.XmlObject2Node" />

+    </component>    

+    

+    <component name="transformer.XMLStreamReader2XmlObject">

+        <system:implementation.system class="org.apache.tuscany.databinding.json.XMLStreamReader2XmlObject" />

+    </component>

+    

+</composite>
\ No newline at end of file
diff --git a/sandbox/old/contrib/databinding-json/src/main/resources/META-INF/sca/default.scdl b/sandbox/old/contrib/databinding-json/src/main/resources/META-INF/sca/default.scdl
new file mode 100644
index 0000000000..fa2c17c5f9
--- /dev/null
+++ b/sandbox/old/contrib/databinding-json/src/main/resources/META-INF/sca/default.scdl
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>

+<!--

+    * 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.    

+-->

+<composite xmlns="http://www.osoa.org/xmlns/sca/1.0" name="org.apache.tuscany.databinding.json" autowire="true">

+    <include name="org.apache.tuscany.databinding.json.include" scdlLocation="databinding.json.scdl" />

+</composite>
\ No newline at end of file
diff --git a/sandbox/old/contrib/databinding-json/src/main/resources/META-INF/sca/extension.composite b/sandbox/old/contrib/databinding-json/src/main/resources/META-INF/sca/extension.composite
new file mode 100644
index 0000000000..fa2c17c5f9
--- /dev/null
+++ b/sandbox/old/contrib/databinding-json/src/main/resources/META-INF/sca/extension.composite
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>

+<!--

+    * 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.    

+-->

+<composite xmlns="http://www.osoa.org/xmlns/sca/1.0" name="org.apache.tuscany.databinding.json" autowire="true">

+    <include name="org.apache.tuscany.databinding.json.include" scdlLocation="databinding.json.scdl" />

+</composite>
\ No newline at end of file
diff --git a/sandbox/old/contrib/databinding-json/src/test/java/org/apache/tuscany/databinding/json/JSONTransformerTestCase.java b/sandbox/old/contrib/databinding-json/src/test/java/org/apache/tuscany/databinding/json/JSONTransformerTestCase.java
new file mode 100644
index 0000000000..7fea86ef6a
--- /dev/null
+++ b/sandbox/old/contrib/databinding-json/src/test/java/org/apache/tuscany/databinding/json/JSONTransformerTestCase.java
@@ -0,0 +1,88 @@
+package org.apache.tuscany.databinding.json;
+
+import java.io.StringReader;
+import java.io.StringWriter;
+
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLOutputFactory;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+import org.apache.axiom.om.OMElement;
+import org.apache.tuscany.databinding.json.axiom.JSON2OMElement;
+import org.json.JSONObject;
+
+public class JSONTransformerTestCase extends TestCase {
+    private static final String IPO_XML =
+        "<?xml version=\"1.0\"?>" + "<ipo:purchaseOrder"
+            + "  xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\""
+            + "  xmlns:ipo=\"http://www.example.com/IPO\""
+            + "  xsi:schemaLocation=\"http://www.example.com/IPO ipo.xsd\""
+            + "  orderDate=\"1999-12-01\">"
+            + "  <shipTo exportCode=\"1\" xsi:type=\"ipo:UKAddress\">"
+            + "    <name>Helen Zoe</name>"
+            + "    <street>47 Eden Street</street>"
+            + "    <city>Cambridge</city>"
+            + "    <postcode>CB1 1JR</postcode>"
+            + "  </shipTo>"
+            + "  <billTo xsi:type=\"ipo:USAddress\">"
+            + "    <name>Robert Smith</name>"
+            + "    <street>8 Oak Avenue</street>"
+            + "    <city>Old Town</city>"
+            + "    <state>PA</state>"
+            + "    <zip>95819</zip>"
+            + "  </billTo>"
+            + "  <items>"
+            + "    <item partNum=\"833-AA\">"
+            + "      <productName>Lapis necklace</productName>"
+            + "      <quantity>1</quantity>"
+            + "      <USPrice>99.95</USPrice>"
+            + "      <ipo:comment>Want this for the holidays</ipo:comment>"
+            + "      <shipDate>1999-12-05</shipDate>"
+            + "    </item>"
+            + "  </items>"
+            + "</ipo:purchaseOrder>";
+
+    private static final String JSON_STR =
+        "{\"xsl:root\":{\"@xmlns\":{\"xsl\":\"http://foo.com\"},\"data\":{\"$\":\"my json string\"}}}";
+
+    public void testXML2JSON() throws Exception {
+        XMLStreamReader reader = XMLInputFactory.newInstance().createXMLStreamReader(new StringReader(IPO_XML));
+        XMLStreamReader2JSON t1 = new XMLStreamReader2JSON();
+        JSONObject json = t1.transform(reader, null);
+        Assert.assertNotNull(json);
+
+        // Cannot round-trip as we hit a bug in Jettison
+        /*
+        JSON2XMLStreamReader t2 = new JSON2XMLStreamReader();
+        XMLStreamReader reader2 = t2.transform(json, null);
+        StringWriter sw = new StringWriter();
+        XMLStreamWriter streamWriter = XMLOutputFactory.newInstance().createXMLStreamWriter(sw);
+        new XMLStreamSerializer().serialize(reader2, streamWriter);
+        streamWriter.flush();
+        System.out.println(sw.toString());
+        */
+
+    }
+
+    public void testJSON2XML() throws Exception {
+        JSON2XMLStreamReader t2 = new JSON2XMLStreamReader();
+        XMLStreamReader reader2 = t2.transform(new JSONObject(JSON_STR), null);
+        StringWriter sw = new StringWriter();
+        XMLStreamWriter streamWriter = XMLOutputFactory.newInstance().createXMLStreamWriter(sw);
+        new XMLStreamSerializer().serialize(reader2, streamWriter);
+        streamWriter.flush();
+        Assert.assertTrue(sw.toString().contains("<xsl:root xmlns:xsl=\"http://foo.com\"><data>my json string</data></xsl:root>"));
+    }
+
+    public void testJSON2OMElement() throws Exception {
+        JSON2OMElement t1 = new JSON2OMElement();
+        OMElement element = t1.transform(new JSONObject(JSON_STR), null);
+        StringWriter writer = new StringWriter();
+        element.serialize(writer);
+        System.out.println(writer.toString());
+    }
+}
diff --git a/sandbox/old/contrib/databinding-json/src/test/resources/ipo.xsd b/sandbox/old/contrib/databinding-json/src/test/resources/ipo.xsd
new file mode 100644
index 0000000000..5468542693
--- /dev/null
+++ b/sandbox/old/contrib/databinding-json/src/test/resources/ipo.xsd
@@ -0,0 +1,118 @@
+<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>
+