1 files changed, 149 insertions, 0 deletions
diff --git a/branches/sca-java-0.99/modules/databinding-saxon/src/main/java/org/apache/tuscany/sca/databinding/saxon/NodeInfo2DataObjectTransformer.java b/branches/sca-java-0.99/modules/databinding-saxon/src/main/java/org/apache/tuscany/sca/databinding/saxon/NodeInfo2DataObjectTransformer.java
new file mode 100644
index 0000000000..520cc1d79d
--- /dev/null
+++ b/branches/sca-java-0.99/modules/databinding-saxon/src/main/java/org/apache/tuscany/sca/databinding/saxon/NodeInfo2DataObjectTransformer.java
@@ -0,0 +1,149 @@
+/*
+ * 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.saxon;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerConfigurationException;
+import javax.xml.transform.TransformerException;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.TransformerFactoryConfigurationError;
+import javax.xml.transform.dom.DOMSource;
+import javax.xml.transform.stream.StreamResult;
+
+import net.sf.saxon.om.NodeInfo;
+
+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.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.util.XMLType;
+import org.apache.tuscany.sdo.helper.TypeHelperImpl;
+import org.apache.tuscany.sdo.impl.FactoryBase;
+import org.w3c.dom.Document;
+
+import commonj.sdo.DataObject;
+import commonj.sdo.Type;
+import commonj.sdo.helper.XMLHelper;
+import commonj.sdo.impl.HelperProvider;
+
+/**
+ * Transforms NodeInfo objects to SDO DataObject-s
+ * @version $Rev$ $Date$
+ * Before constructing the data object, resulting XML is populated
+ * with correct namespaces (which are taken from the logical target data type)
+ * These namespaces are crucial for constructing the right instance of
+ * the DataObject (i.e. if there is a SDO factory, an instance from this factory will
+ * be used, not the generic any data object)
+ */
+public class NodeInfo2DataObjectTransformer extends
+		BaseTransformer<NodeInfo, DataObject> implements
+		PullTransformer<NodeInfo, DataObject> {
+	
+	private NodeInfo2NodeTransformer nodeInfo2NodeTransformer;
+	public NodeInfo2DataObjectTransformer(NodeInfo2NodeTransformer nodeInfo2NodeTransformer) {
+		this.nodeInfo2NodeTransformer = nodeInfo2NodeTransformer;
+	}
+
+	@Override
+	protected Class getSourceType() {
+		return NodeInfo.class;
+	}
+
+	@Override
+	protected Class getTargetType() {
+		return DataObject.class;
+	}
+
+	@Override
+	public int getWeight() {
+		return 10 + nodeInfo2NodeTransformer.getWeight();
+	}
+
+	public DataObject transform(NodeInfo source, TransformationContext context) {
+		Document doc = (Document)nodeInfo2NodeTransformer.transform(source, context);
+		
+		Document cloneDoc = cloneDocumentWithRightNamespaces(doc, context);
+
+		return produceResult(cloneDoc);
+	}
+	
+	private Document cloneDocumentWithRightNamespaces(Document doc, TransformationContext context) {
+		
+		DataType targetDataType = context.getTargetDataType();
+		String namespace = null;
+		Object logical = targetDataType.getLogical();
+		if(logical instanceof XMLType) {
+			namespace = ((XMLType)logical).getTypeName().getNamespaceURI();
+		} else {
+			Type type = HelperProvider.INSTANCE.typeHelper().getType(targetDataType.getClass());
+			
+			if(type == null) {
+				return doc;
+			}
+			namespace = type.getURI();
+		}
+		
+		if(namespace == null) {
+			return doc;
+		}
+		
+		FactoryBase factory = (FactoryBase)((TypeHelperImpl)HelperProvider.INSTANCE.typeHelper()).getExtendedMetaData().getPackage(namespace);
+		if(factory == null) {
+			return doc;
+		}
+		String prefix = factory.getNsPrefix();
+		
+		Document cloneDoc = (Document)doc.cloneNode(false);
+		
+		SaxonDataBindingHelper.setNamespacesAndPrefixesReq(doc, cloneDoc, cloneDoc, namespace, prefix);
+		
+		return cloneDoc;
+	}
+
+	private DataObject produceResult(Document doc) {
+		ByteArrayOutputStream baos = new ByteArrayOutputStream();
+		StreamResult streamResult = new StreamResult(baos);
+		try {
+			Transformer transformer = TransformerFactory.newInstance().newTransformer();
+			transformer.transform(new DOMSource(doc), streamResult);
+		} catch (TransformerConfigurationException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		} catch (TransformerFactoryConfigurationError e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		} catch (TransformerException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+		try {
+			baos.flush();
+			baos.close();
+		} catch (IOException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+		DataObject resultingObject = XMLHelper.INSTANCE.load(new String(baos.toByteArray())).getRootObject();
+		
+		return resultingObject;
+	}
+}