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Camel CXF SOAP support
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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.camel.component.cxf.jaxws;

import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;

import org.w3c.dom.Node;

import org.apache.cxf.databinding.DataReader;
import org.apache.cxf.databinding.DataWriter;
import org.apache.cxf.databinding.source.NodeDataReader;
import org.apache.cxf.databinding.source.NodeDataWriter;
import org.apache.cxf.databinding.source.XMLStreamDataReader;
import org.apache.cxf.databinding.source.XMLStreamDataWriter;
import org.apache.cxf.jaxb.JAXBDataBinding;
import org.apache.cxf.service.model.MessagePartInfo;

/**
 * This is a hybrid DataBinding of {@link JAXBDataBinding} and
 * {@link org.apache.cxf.databinding.source.SourceDataBinding}. Like the SourceDataBinding, this DataBinding
 * de/serializes parameters as DOMSource objects. And like the JAXBDataBinding, the
 * {@link #initialize(org.apache.cxf.service.Service)} method can initialize the service model's message part schema
 * based on the service class in the message part info. Hence, this DataBinding supports DOMSource object
 * de/serialization without requiring users to provide a WSDL.
 */
public class HybridSourceDataBinding extends JAXBDataBinding {
    public HybridSourceDataBinding() {
    }

    @SuppressWarnings("unchecked")
    @Override
    public  DataReader createReader(Class cls) {
        if (cls == XMLStreamReader.class) {
            return (DataReader) new XMLStreamDataReader();
        } else if (cls == Node.class) {
            return (DataReader) new NodeDataReader();
        } else {
            throw new UnsupportedOperationException("The type " + cls.getName() + " is not supported.");
        }
    }

    @Override
    public Class[] getSupportedReaderFormats() {
        return new Class[] { XMLStreamReader.class, Node.class };
    }

    @SuppressWarnings("unchecked")
    @Override
    public  DataWriter createWriter(Class cls) {
        if (cls == XMLStreamWriter.class) {
            return (DataWriter) new XMLStreamDataWriter() {

                @Override
                public void write(Object obj, MessagePartInfo part, XMLStreamWriter output) {
                    if (obj == null) {
                        return;
                    }
                    super.write(obj, part, output);
                }

            };
        } else if (cls == Node.class) {
            return (DataWriter) new NodeDataWriter();
        } else {
            throw new UnsupportedOperationException("The type " + cls.getName() + " is not supported.");
        }
    }

    @Override
    public Class[] getSupportedWriterFormats() {
        return new Class[] { XMLStreamWriter.class, Node.class };
    }

}