/**
* 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;
import java.util.logging.Logger;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import javax.xml.transform.Source;
import javax.xml.transform.stax.StAXSource;
import org.w3c.dom.Node;
import org.apache.cxf.common.i18n.Message;
import org.apache.cxf.common.logging.LogUtils;
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.SourceDataBinding;
import org.apache.cxf.databinding.source.XMLStreamDataReader;
import org.apache.cxf.databinding.source.XMLStreamDataWriter;
import org.apache.cxf.interceptor.Fault;
import org.apache.cxf.jaxb.JAXBDataBinding;
import org.apache.cxf.service.model.MessagePartInfo;
import org.apache.cxf.staxutils.StaxSource;
import org.apache.cxf.staxutils.StaxUtils;
/**
* 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.
*
* @version @Revision: 789534 $
*/
public class HybridSourceDataBinding extends JAXBDataBinding {
private static final Logger LOG = LogUtils.getL7dLogger(SourceDataBinding.class);
public HybridSourceDataBinding() {
}
@SuppressWarnings("unchecked")
@Override
public <T> DataReader<T> createReader(Class<T> cls) {
if (cls == XMLStreamReader.class) {
return (DataReader<T>) new XMLStreamDataReader();
} else if (cls == Node.class) {
return (DataReader<T>) 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 <T> DataWriter<T> createWriter(Class<T> cls) {
if (cls == XMLStreamWriter.class) {
return (DataWriter<T>) new XMLStreamDataWriter() {
public void write(Object obj, MessagePartInfo part, XMLStreamWriter output) {
if (obj == null) {
return;
}
// workaround issue in CXF that is causing these to go through
// sax instead of stax. Fixed in 2.4.4/2.5.
if (obj instanceof StaxSource
|| obj instanceof StAXSource) {
XMLStreamReader reader = StaxUtils.createXMLStreamReader((Source)obj);
try {
StaxUtils.copy(reader, output);
reader.close();
} catch (XMLStreamException e) {
throw new Fault(new Message("COULD_NOT_READ_XML_STREAM", LOG), e);
}
return;
}
super.write(obj, part, output);
}
};
} else if (cls == Node.class) {
return (DataWriter<T>) new NodeDataWriter();
} else {
throw new UnsupportedOperationException("The type " + cls.getName() + " is not supported.");
}
}
@Override
public Class<?>[] getSupportedWriterFormats() {
return new Class[] {XMLStreamWriter.class, Node.class};
}
}