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/*
* 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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