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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.cxf.jaxws.handler.logical;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.soap.SOAPMessage;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import javax.xml.transform.Source;
import javax.xml.transform.dom.DOMSource;
import javax.xml.ws.Binding;
import org.w3c.dom.Document;
import org.w3c.dom.DocumentFragment;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.apache.cxf.endpoint.Endpoint;
import org.apache.cxf.helpers.XMLUtils;
import org.apache.cxf.interceptor.Fault;
import org.apache.cxf.jaxws.handler.AbstractJAXWSHandlerInterceptor;
import org.apache.cxf.jaxws.handler.HandlerChainInvoker;
import org.apache.cxf.message.Message;
import org.apache.cxf.message.MessageImpl;
import org.apache.cxf.phase.Phase;
import org.apache.cxf.phase.PhaseInterceptorChain;
import org.apache.cxf.staxutils.StaxUtils;
import org.apache.cxf.staxutils.W3CDOMStreamReader;
import org.apache.cxf.staxutils.W3CDOMStreamWriter;
import org.apache.cxf.transport.MessageObserver;
public class LogicalHandlerOutInterceptor
extends AbstractJAXWSHandlerInterceptor {
public static final String ORIGINAL_WRITER
= LogicalHandlerOutInterceptor.class.getName() + ".original_writer";
private LogicalHandlerOutEndingInterceptor ending;
public LogicalHandlerOutInterceptor(Binding binding) {
super(binding, Phase.PRE_MARSHAL);
ending = new LogicalHandlerOutEndingInterceptor(binding);
}
public void handleMessage(Message message) throws Fault {
if (binding.getHandlerChain().isEmpty()) {
return;
}
HandlerChainInvoker invoker = getInvoker(message);
if (invoker.getLogicalHandlers().isEmpty()) {
return;
}
try {
XMLStreamWriter origWriter = message.getContent(XMLStreamWriter.class);
Document document = XMLUtils.newDocument();
message.setContent(Node.class, document);
W3CDOMStreamWriter writer = new W3CDOMStreamWriter(document.createDocumentFragment());
// Replace stax writer with DomStreamWriter
message.setContent(XMLStreamWriter.class, writer);
message.put(ORIGINAL_WRITER, origWriter);
message.getInterceptorChain().add(ending);
} catch (ParserConfigurationException e) {
throw new Fault(e);
}
}
@Override
public void handleFault(Message message) {
super.handleFault(message);
XMLStreamWriter os = (XMLStreamWriter)message.get(ORIGINAL_WRITER);
if (os != null) {
message.setContent(XMLStreamWriter.class, os);
}
}
private class LogicalHandlerOutEndingInterceptor
extends AbstractJAXWSHandlerInterceptor {
public LogicalHandlerOutEndingInterceptor(Binding binding) {
super(binding, Phase.POST_MARSHAL);
}
public void handleMessage(Message message) throws Fault {
W3CDOMStreamWriter domWriter = (W3CDOMStreamWriter)message.getContent(XMLStreamWriter.class);
XMLStreamWriter origWriter = (XMLStreamWriter)message
.get(LogicalHandlerOutInterceptor.ORIGINAL_WRITER);
HandlerChainInvoker invoker = getInvoker(message);
LogicalMessageContextImpl lctx = new LogicalMessageContextImpl(message);
invoker.setLogicalMessageContext(lctx);
boolean requestor = isRequestor(message);
XMLStreamReader reader = (XMLStreamReader)message.get("LogicalHandlerInterceptor.INREADER");
SOAPMessage origMessage = null;
if (reader != null) {
origMessage = message.getContent(SOAPMessage.class);
message.setContent(XMLStreamReader.class, reader);
message.removeContent(SOAPMessage.class);
} else if (domWriter.getCurrentFragment() != null) {
DocumentFragment frag = domWriter.getCurrentFragment();
Node nd = frag.getFirstChild();
while (nd != null && !(nd instanceof Element)) {
nd = nd.getNextSibling();
}
Source source = new DOMSource(nd);
message.setContent(Source.class, source);
message.setContent(XMLStreamReader.class,
new W3CDOMStreamReader(domWriter.getCurrentFragment()));
} else if (domWriter.getDocument().getDocumentElement() != null) {
Source source = new DOMSource(domWriter.getDocument());
message.setContent(Source.class, source);
message.setContent(XMLStreamReader.class,
StaxUtils.createXMLStreamReader(domWriter.getDocument()));
}
if (!invoker.invokeLogicalHandlers(requestor, lctx)) {
if (requestor) {
// client side - abort
message.getInterceptorChain().abort();
if (!message.getExchange().isOneWay()) {
Endpoint e = message.getExchange().get(Endpoint.class);
Message responseMsg = new MessageImpl();
responseMsg.setExchange(message.getExchange());
responseMsg = e.getBinding().createMessage(responseMsg);
MessageObserver observer = (MessageObserver)message.getExchange()
.get(MessageObserver.class);
if (observer != null) {
//client side outbound, the request message becomes the response message
responseMsg.setContent(XMLStreamReader.class, message
.getContent(XMLStreamReader.class));
message.getExchange().setInMessage(responseMsg);
responseMsg.put(PhaseInterceptorChain.STARTING_AT_INTERCEPTOR_ID,
LogicalHandlerInInterceptor.class.getName());
observer.onMessage(responseMsg);
}
return;
}
} else {
// server side - abort
// Even return false, also should try to set the XMLStreamWriter using
// reader or domWriter, or the SOAPMessage's body maybe empty.
}
}
if (origMessage != null) {
message.setContent(SOAPMessage.class, origMessage);
}
try {
reader = message.getContent(XMLStreamReader.class);
message.removeContent(XMLStreamReader.class);
if (reader != null) {
StaxUtils.copy(reader, origWriter);
} else if (domWriter.getDocument().getDocumentElement() != null) {
StaxUtils.copy(domWriter.getDocument(), origWriter);
}
message.setContent(XMLStreamWriter.class, origWriter);
} catch (XMLStreamException e) {
throw new Fault(e);
}
}
}
}