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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.jaxb.axiom;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
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.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.databinding.BaseTransformer;
import org.apache.tuscany.sca.databinding.PullTransformer;
import org.apache.tuscany.sca.databinding.TransformationContext;
import org.apache.tuscany.sca.databinding.TransformationException;
import org.apache.tuscany.sca.databinding.jaxb.JAXBContextHelper;
import org.apache.tuscany.sca.databinding.jaxb.JAXBDataBinding;
/**
* JAXB Object --> AXIOM OMElement transformer
*
* @version $Rev$ $Date$
*/
public class JAXB2OMElement extends BaseTransformer<Object, OMElement> implements PullTransformer<Object, OMElement> {
private OMFactory factory = OMAbstractFactory.getOMFactory();
private JAXBContextHelper contextHelper;
public JAXB2OMElement(ExtensionPointRegistry registry) {
super();
contextHelper = JAXBContextHelper.getInstance(registry);
}
@Override
public String getSourceDataBinding() {
return JAXBDataBinding.NAME;
}
public OMElement transform(Object source, TransformationContext context) throws TransformationException {
JAXBContext jaxbContext;
try {
jaxbContext = contextHelper.createJAXBContext(context, true);
} catch (JAXBException e) {
throw new TransformationException(e);
}
Object element = JAXBContextHelper.createJAXBElement(jaxbContext, context.getTargetDataType(), source);
QName name = jaxbContext.createJAXBIntrospector().getElementName(element);
JAXBDataSource dataSource = new JAXBDataSource(element, jaxbContext, contextHelper);
OMElement omElement = AxiomHelper.createOMElement(factory, name, dataSource);
return omElement;
}
@Override
public Class<Object> getSourceType() {
return Object.class;
}
@Override
public Class<OMElement> getTargetType() {
return OMElement.class;
}
@Override
public int getWeight() {
return 3000;
}
}
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