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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 java.io.ByteArrayOutputStream;
import java.io.Externalizable;
import java.io.ObjectOutputStream;
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.axiom.om.OMNamespace;
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.BaseTransformer;
import org.apache.tuscany.sca.databinding.impl.XSDDataTypeConverter.Base64Binary;
/**
*
* @version $Rev$ $Date$
*/
public class Externalizable2OMElement extends BaseTransformer<Externalizable, OMElement> implements
PullTransformer<Externalizable, OMElement> {
@Override
protected Class<Externalizable> getSourceType() {
return Externalizable.class;
}
@Override
protected Class<OMElement> getTargetType() {
return OMElement.class;
}
public OMElement transform(Externalizable source, TransformationContext context) {
OMElement element = null;
try {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream out = new ObjectOutputStream(bos);
out.writeObject(source);
out.close();
OMFactory factory = OMAbstractFactory.getOMFactory();
OMNamespace ns = AxiomHelper.createOMNamespace(factory, new QName("http://callable"));
element = factory.createOMElement("reference",ns);
element.setText(Base64Binary.encode(bos.toByteArray()));
return element;
} catch (Exception e) {
throw new TransformationException(e);
}
}
@Override
public int getWeight() {
return 10;
}
}
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