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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.sdo2om;
import static org.apache.tuscany.sca.databinding.sdo.SDODataBinding.ROOT_ELEMENT;
import javax.xml.namespace.QName;
import org.apache.axiom.om.OMAbstractFactory;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMFactory;
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.databinding.sdo.SDOContextHelper;
import org.apache.tuscany.sca.interfacedef.DataType;
import org.apache.tuscany.sca.interfacedef.util.XMLType;
import commonj.sdo.DataObject;
import commonj.sdo.helper.HelperContext;
import commonj.sdo.helper.XMLDocument;
/**
* SDO DataObject --> AXIOM OMElement transformer
*
* @version $Rev$ $Date$
*/
public class DataObject2OMElement extends BaseTransformer<DataObject, OMElement> implements
PullTransformer<DataObject, OMElement> {
public OMElement transform(DataObject source, TransformationContext context) {
HelperContext helperContext = SDOContextHelper.getHelperContext(context);
OMFactory factory = OMAbstractFactory.getOMFactory();
QName name = ROOT_ELEMENT;
if (context != null) {
DataType dataType = context.getTargetDataType();
Object logical = dataType == null ? null : dataType.getLogical();
if (logical instanceof XMLType) {
XMLType xmlType = (XMLType)logical;
if (xmlType.isElement()) {
name = xmlType.getElementName();
}
}
}
XMLDocument document = helperContext.getXMLHelper().createDocument(source,
name.getNamespaceURI(),
name.getLocalPart());
SDODataSource dataSource = new SDODataSource(document, helperContext);
OMElement element = AxiomHelper.createOMElement(factory, name, dataSource);
return element;
}
@Override
public Class getSourceType() {
return DataObject.class;
}
@Override
public Class getTargetType() {
return OMElement.class;
}
@Override
public int getWeight() {
return 10;
}
}
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