1 files changed, 95 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/0.99-incubating/modules/databinding-saxon/src/main/java/org/apache/tuscany/sca/databinding/saxon/SaxonDataBindingHelper.java b/sca-java-1.x/tags/0.99-incubating/modules/databinding-saxon/src/main/java/org/apache/tuscany/sca/databinding/saxon/SaxonDataBindingHelper.java
new file mode 100644
index 0000000000..eac40c9b99
--- /dev/null
+++ b/sca-java-1.x/tags/0.99-incubating/modules/databinding-saxon/src/main/java/org/apache/tuscany/sca/databinding/saxon/SaxonDataBindingHelper.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.saxon;
+
+import net.sf.saxon.Configuration;
+
+import org.w3c.dom.Attr;
+import org.w3c.dom.CharacterData;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.NamedNodeMap;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+import org.w3c.dom.ProcessingInstruction;
+
+/**
+ * Provides helper functionality for saxon data bindings
+ * @version $Rev$ $Date$
+ */
+public class SaxonDataBindingHelper {
+	/**
+	 * This variable is meaningfull only in the context of XQoery expression
+	 * execution. It is used by the DataObject2NodeInfoTransformer and
+	 * Node2NodeInfoTransformer to create the correct NodeInfo objects
+	 * in the Output2Output transformations. 
+	 * For Input2Input transformations it is meaningless:
+	 *    - if it is null - it is ignored by the transformers as they create new
+	 *      configuration objects
+	 *    - if it is not null - it is reused
+	 * However the XQueryInvoker transforms all NodeInfo-s to NodeInfo-s with
+	 * its current configuration, so there is no effect for Input2Input transformations
+	 */
+	public static Configuration CURR_EXECUTING_CONFIG = null;
+	
+	/**
+	 * Converts a given document to a document with specific namespace and prefix
+	 */
+	public static void setNamespacesAndPrefixesReq(Node node, Node copyNode, Document copyOwnerDocument, String namespace, String prefix) {
+		NodeList childNodes = node.getChildNodes();
+		for(int i=0; i<childNodes.getLength(); i++) {
+			Node childNode = childNodes.item(i);
+			Node clonning = null;
+			if(childNode.getNodeType() == Node.ELEMENT_NODE || childNode.getNodeType() == Node.ATTRIBUTE_NODE) {
+				if(childNode.getNodeType() == Node.ELEMENT_NODE) {
+					clonning = copyOwnerDocument.createElementNS(namespace, childNode.getLocalName());
+					NamedNodeMap attributes = ((Element)childNode).getAttributes();
+					for(int j=0; j<attributes.getLength(); j++) {
+						Attr attribute = (Attr)attributes.item(j);
+						Attr cloneAttribute = copyOwnerDocument.createAttributeNS(namespace, attribute.getLocalName());
+						cloneAttribute.setValue(attribute.getValue());
+						((Element)clonning).setAttributeNode(cloneAttribute);
+						cloneAttribute.setPrefix(prefix);
+					}
+				} else {
+					clonning = copyOwnerDocument.createAttributeNS(namespace, childNode.getLocalName());
+				}
+				//clonning.setTextContent(childNode.getTextContent());
+				clonning.setNodeValue(childNode.getNodeValue());
+				clonning.setPrefix(prefix);
+			} else if(!(copyNode instanceof Document)) {
+				if(childNode.getNodeType() == Node.CDATA_SECTION_NODE) {
+					clonning = copyOwnerDocument.createCDATASection(((CharacterData)childNode).getData());
+				} else if(childNode.getNodeType() == Node.COMMENT_NODE) {
+					clonning = copyOwnerDocument.createComment(((CharacterData)childNode).getData());
+				} else if(childNode.getNodeType() == Node.TEXT_NODE) {
+					clonning = copyOwnerDocument.createTextNode(((CharacterData)childNode).getData());
+				} else if(childNode.getNodeType() == Node.ENTITY_REFERENCE_NODE) {
+					clonning = copyOwnerDocument.createEntityReference(childNode.getNodeName());
+				} else if(childNode.getNodeType() == Node.PROCESSING_INSTRUCTION_NODE) {
+					clonning = copyOwnerDocument.createProcessingInstruction(((ProcessingInstruction)childNode).getTarget(), ((ProcessingInstruction)childNode).getData());
+				}
+			}
+			if(clonning!=null) {
+				copyNode.appendChild(clonning);
+			}
+			setNamespacesAndPrefixesReq(childNode, clonning, copyOwnerDocument, namespace, prefix);
+		}
+	}
+}