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/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.ws.core.jaxws;
// $Id: JAXBSerializer.java 4724 2007-10-10 14:19:14Z heiko.braun@jboss.com $
import org.jboss.logging.Logger;
import org.jboss.ws.extensions.xop.jaxws.AttachmentMarshallerImpl;
import org.jboss.ws.core.binding.BindingException;
import org.jboss.ws.core.binding.ComplexTypeSerializer;
import org.jboss.ws.core.binding.SerializationContext;
import org.jboss.ws.core.binding.BufferedStreamResult;
import org.jboss.wsf.spi.binding.BindingCustomization;
import org.w3c.dom.NamedNodeMap;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.Marshaller;
import javax.xml.datatype.XMLGregorianCalendar;
import javax.xml.namespace.QName;
import javax.xml.transform.Result;
import javax.xml.ws.WebServiceException;
/**
* A Serializer that can handle complex types by delegating to JAXB.
*
* @author Thomas.Diesler@jboss.org
* @since 04-Dec-2004
*/
public class JAXBSerializer extends ComplexTypeSerializer
{
// provide logging
private static final Logger log = Logger.getLogger(JAXBSerializer.class);
public JAXBSerializer() throws BindingException
{
}
@Override
public Result serialize(QName xmlName, QName xmlType, Object value, SerializationContext serContext, NamedNodeMap attributes) throws BindingException
{
if (log.isDebugEnabled()) log.debug("serialize: [xmlName=" + xmlName + ",xmlType=" + xmlType + "]");
Result result = null;
try
{
// The serialization context contains the base type, which is needed for JAXB to marshall xsi:type correctly.
// This should be more efficient and accurate than searching the type mapping
Class expectedType = serContext.getJavaType();
Class actualType = value.getClass();
Class[] types = shouldFilter(actualType) ? new Class[]{expectedType} : new Class[]{expectedType, actualType};
JAXBContext jaxbContext = getJAXBContext(types);
Marshaller marshaller = jaxbContext.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FRAGMENT, true);
marshaller.setAttachmentMarshaller(new AttachmentMarshallerImpl());
// It's safe to pass a stream result, because the SCE will always be in XML_VALID state afterwards.
// This state can safely be written to an outstream. See XMLFragment and XMLContent as well.
result = new BufferedStreamResult();
marshaller.marshal(new JAXBElement(xmlName, expectedType, value), result);
if (log.isDebugEnabled()) log.debug("serialized: " + result);
}
catch (Exception ex)
{
handleMarshallException(ex);
}
return result;
}
/**
* Retrieve JAXBContext from cache or create new one and cache it.
* @param types
* @return JAXBContext
*/
private JAXBContext getJAXBContext(Class[] types){
JAXBContextCache cache = JAXBContextCache.getContextCache();
JAXBContext context = cache.get(types);
if(null==context)
{
BindingCustomization bindingCustomization = getBindingCustomization();
context = JAXBContextFactory.newInstance().createContext(types, bindingCustomization);
cache.add(types, context);
}
return context;
}
// Remove this when we add a XMLGregorianCalendar Serializer
private boolean shouldFilter(Class<?> actualType)
{
return XMLGregorianCalendar.class.isAssignableFrom(actualType);
}
// 4.21 Conformance (Marshalling failure): If an error occurs when using the supplied JAXBContext to marshall
// a request or unmarshall a response, an implementation MUST throw a WebServiceException whose
// cause is set to the original JAXBException.
private void handleMarshallException(Exception ex)
{
if (ex instanceof WebServiceException)
throw (WebServiceException)ex;
throw new WebServiceException(ex);
}
}
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