/*
* Copyright (c) 2007-2009, Sosnoski Software Associates Limited. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
* following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this list of conditions and the following
* disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other materials provided with the distribution. Neither the name of
* JiBX nor the names of its contributors may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.jibx.ws.io;
import org.jibx.runtime.BindingDirectory;
import org.jibx.runtime.IBindingFactory;
import org.jibx.runtime.IUnmarshaller;
import org.jibx.runtime.IXMLReader;
import org.jibx.runtime.JiBXException;
import org.jibx.runtime.impl.UnmarshallingContext;
import org.jibx.ws.WsBindingException;
import org.jibx.ws.WsException;
/**
* Unmarshalls a payload from an XML reader using JiBX bindings. The object to unmarshall must be of a class that is in
* the binding factory that this class has been constructed with.
* <p>
* This class is serially reusable.
*
* @author Nigel Charman
*/
public final class UnmarshallingPayloadReader implements PayloadReader
{
private final UnmarshallingContext m_unmarshallCtx;
/**
* Create the unmarshaller using the binding factory for the "target class". This method can only be used with
* target classes that are mapped in only one binding. Note that there is no restriction on the "payload class"
* being the same as the target class. The only restriction is that the binding factory for the target class must
* include a binding for the payload class.
*
* @param clazz the target class
* @throws WsBindingException on any error in finding or accessing factory, or creating unmarshaller
*/
public UnmarshallingPayloadReader(Class clazz) throws WsBindingException {
IBindingFactory factory;
try {
factory = BindingDirectory.getFactory(clazz);
} catch (JiBXException e) {
throw new WsBindingException("Error accessing binding.", e);
}
m_unmarshallCtx = createUnmarshallingContext(factory);
}
/**
* Create the unmarshaller using the binding factory for the specified binding name and binding package name. See
* {@link BindingDirectory#getFactory(String, String)} for further definition of the required binding name and
* binding package name.
*
* @param bindingName binding name
* @param packageName target package for binding
* @throws WsBindingException on any error in finding or accessing factory, or creating unmarshaller
*/
public UnmarshallingPayloadReader(String bindingName, String packageName) throws WsBindingException {
IBindingFactory factory;
try {
factory = BindingDirectory.getFactory(bindingName, packageName);
} catch (JiBXException e) {
throw new WsBindingException("Error accessing binding.", e);
}
m_unmarshallCtx = createUnmarshallingContext(factory);
}
/**
* Create the unmarshaller using the specified binding factory.
*
* @param factory the binding factory
* @throws WsBindingException on any error in creating unmarshaller
*/
public UnmarshallingPayloadReader(IBindingFactory factory) throws WsBindingException {
m_unmarshallCtx = createUnmarshallingContext(factory);
}
private UnmarshallingContext createUnmarshallingContext(IBindingFactory factory) throws WsBindingException {
UnmarshallingContext ctx = null;
try {
ctx = (UnmarshallingContext) factory.createUnmarshallingContext();
} catch (JiBXException e) {
throw new WsBindingException("Unable to create UnmarshallingContext.", e);
}
return ctx;
}
/** {@inheritDoc} */
public Object invoke(IXMLReader xmlReader) throws WsException {
Object payload = null;
m_unmarshallCtx.reset();
m_unmarshallCtx.setDocument(xmlReader);
String name;
try {
name = m_unmarshallCtx.toStart();
IUnmarshaller unmarshaller = m_unmarshallCtx.getUnmarshaller(xmlReader.getNamespace(), name);
if (unmarshaller != null) {
payload = unmarshaller.unmarshal(null, m_unmarshallCtx);
}
} catch (JiBXException e) {
throw new WsException("Error in unmarshalling.", e);
}
return payload;
}
/** {@inheritDoc} */
public void reset() {
m_unmarshallCtx.reset();
}
}