From e5b7380c874745c989d1816b8f552504f038e1bc Mon Sep 17 00:00:00 2001
From: lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68>
Date: Thu, 26 Sep 2013 20:33:20 +0000
Subject: 2.0 branch for possible maintenance release

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1526672 13f79535-47bb-0310-9956-ffa450edef68
---
 .../axiom/OMElement2XMLStreamReader.java           | 68 ++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 sca-java-2.x/branches/2.0/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElement2XMLStreamReader.java

(limited to 'sca-java-2.x/branches/2.0/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElement2XMLStreamReader.java')

diff --git a/sca-java-2.x/branches/2.0/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElement2XMLStreamReader.java b/sca-java-2.x/branches/2.0/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElement2XMLStreamReader.java
new file mode 100644
index 0000000000..4c7be59466
--- /dev/null
+++ b/sca-java-2.x/branches/2.0/modules/databinding-axiom/src/main/java/org/apache/tuscany/sca/databinding/axiom/OMElement2XMLStreamReader.java
@@ -0,0 +1,68 @@
+/*
+ * 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.axiom;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamReader;
+
+import org.apache.axiom.om.OMElement;
+import org.apache.tuscany.sca.databinding.PullTransformer;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.databinding.BaseTransformer;
+
+/**
+ *
+ * @version $Rev$ $Date$
+ */
+public class OMElement2XMLStreamReader extends BaseTransformer<OMElement, XMLStreamReader> implements
+    PullTransformer<OMElement, XMLStreamReader> {
+
+    /*
+     * Reverting the behavior here in 2.x (though not in 1.x) to pass through the 
+     * XMLStreamReader even in the case of an xsi:nil element.  This appears to only
+     * be relied upon in 1.x by the XMLStreamReader2CallableReference transformer, and can
+     * be changed in 2.x without breaking anything.  
+     *
+     * I'd preferto move the responsibility for handling xsi:nil to transformers such as
+     * XMLStreamReader2CallableReference.  While for something like JAXB, xsi:nil would
+     * typically map to 'null', for something XML-centric like DOM I think it's more useful
+     * to transform to a DOM Element with xsi:nil="true".   For now I'll leave this issue
+     * unaddressed in 2.x, where we'd have to adjust XMLStreamReader2CallableReference in 
+     * order to make a change like this.
+     */
+    public XMLStreamReader transform(OMElement source, TransformationContext context) {
+        return source != null ? source.getXMLStreamReader() : null;  
+    }
+
+    @Override
+    protected Class<OMElement> getSourceType() {
+        return OMElement.class;
+    }
+
+    @Override
+    protected Class<XMLStreamReader> getTargetType() {
+        return XMLStreamReader.class;
+    }
+
+    @Override
+    public int getWeight() {
+        return 10;
+    }
+
+}
-- 
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