1 files changed, 144 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/JAXBDataSourceExt.java b/sca-java-2.x/tags/2.0.1-RC1/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/JAXBDataSourceExt.java
new file mode 100644
index 0000000000..5a5afc13cb
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/ext/JAXBDataSourceExt.java
@@ -0,0 +1,144 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tuscany.sca.databinding.jaxb.axiom.ext;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.UnsupportedEncodingException;
+import java.io.Writer;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import javax.xml.bind.JAXBException;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.axiom.om.OMDataSourceExt;
+import org.apache.axiom.om.OMException;
+import org.apache.axiom.om.OMOutputFormat;
+import org.apache.axiom.om.ds.OMDataSourceExtBase;
+import org.apache.axiom.om.impl.MTOMXMLStreamWriter;
+import org.apache.axiom.om.util.StAXUtils;
+
+/**
+ * OMDataSource backed by a jaxb object
+ */
+public class JAXBDataSourceExt extends OMDataSourceExtBase {
+
+    private static final Logger log = Logger.getLogger(JAXBDataSourceExt.class.getName());
+
+    private Object jaxb;
+    private JAXBDSContext context;
+
+    public JAXBDataSourceExt(Object jaxb, JAXBDSContext context) {
+        super();
+        this.jaxb = jaxb;
+        this.context = context;
+    }
+
+    public void close() {
+    }
+
+    public OMDataSourceExt copy() {
+        return new JAXBDataSourceExt(jaxb, context);
+    }
+
+    public Object getObject() {
+        return jaxb;
+    }
+
+    public JAXBDSContext getContext() {
+        return context;
+    }
+
+    public XMLStreamReader getReader() throws XMLStreamException {
+
+        try {
+            String encoding = "utf-8";
+            InputStream is = new ByteArrayInputStream(getXMLBytes(encoding));
+            return StAXUtils.createXMLStreamReader(is, encoding);
+        } catch (UnsupportedEncodingException e) {
+            throw new XMLStreamException(e);
+        }
+    }
+
+    public void serialize(OutputStream output, OMOutputFormat format) throws XMLStreamException {
+        MTOMXMLStreamWriter writer = new MTOMXMLStreamWriter(output, format);
+        serialize(writer);
+        writer.flush();
+        try {
+            writer.close();
+        } catch (XMLStreamException e) {
+            // An exception can occur if nothing is written to the 
+            // writer.  This is possible if the underlying data source
+            // writers to the output stream directly.
+            if (log.isLoggable(Level.FINER)) {
+                log.finer("Catching and swallowing exception " + e);
+            }
+        }
+    }
+
+    public void serialize(Writer writerTarget, OMOutputFormat format) throws XMLStreamException {
+        MTOMXMLStreamWriter writer = new MTOMXMLStreamWriter(StAXUtils.createXMLStreamWriter(writerTarget));
+        writer.setOutputFormat(format);
+        serialize(writer);
+        writer.flush();
+        writer.close();
+    }
+
+    public void serialize(XMLStreamWriter xmlWriter) throws XMLStreamException {
+        try {
+            context.marshal(jaxb, xmlWriter);
+        } catch (JAXBException je) {
+            throw new XMLStreamException(je);
+        }
+    }
+
+    public byte[] getXMLBytes(String encoding) throws UnsupportedEncodingException {
+        try {
+            ByteArrayOutputStream baos = new ByteArrayOutputStream();
+
+            // Exposes getOutputStream, which allows faster writes.
+            XMLStreamWriterWithOS writer = new XMLStreamWriterWithOS(baos, encoding);
+
+            // Write the business object to the writer
+            serialize(writer);
+
+            // Flush the writer
+            writer.flush();
+            writer.close();
+            return baos.toByteArray();
+        } catch (XMLStreamException e) {
+            throw new OMException(e);
+        }
+    }
+
+    public boolean isDestructiveRead() {
+        return false;
+    }
+
+    public boolean isDestructiveWrite() {
+        return false;
+    }
+
+}