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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.interceptor;
import java.io.IOException;
import java.io.InputStream;
import java.util.Collection;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.cxf.Bus;
import org.apache.cxf.binding.Binding;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.endpoint.ConduitSelector;
import org.apache.cxf.endpoint.Endpoint;
import org.apache.cxf.endpoint.PreexistingConduitSelector;
import org.apache.cxf.helpers.CastUtils;
import org.apache.cxf.message.Exchange;
import org.apache.cxf.message.Message;
import org.apache.cxf.phase.AbstractPhaseInterceptor;
import org.apache.cxf.phase.Phase;
import org.apache.cxf.phase.PhaseChainCache;
import org.apache.cxf.phase.PhaseInterceptorChain;
import org.apache.cxf.phase.PhaseManager;
import org.apache.cxf.service.model.BindingMessageInfo;
import org.apache.cxf.service.model.BindingOperationInfo;
import org.apache.cxf.service.model.MessageInfo;
import org.apache.cxf.transport.Conduit;
public class OutgoingChainInterceptor extends AbstractPhaseInterceptor {
private static final Logger LOG = LogUtils.getL7dLogger(OutgoingChainInterceptor.class);
private PhaseChainCache chainCache = new PhaseChainCache();
public OutgoingChainInterceptor() {
super(Phase.POST_INVOKE);
}
public void handleMessage(Message message) {
Exchange ex = message.getExchange();
BindingOperationInfo binding = ex.get(BindingOperationInfo.class);
//if we get this far, we're going to be outputting some valid content, but we COULD
//also be "echoing" some of the content from the input. Thus, we need to
//mark it as requiring the input to be cached.
message.put("cxf.io.cacheinput", Boolean.TRUE);
if (null != binding && null != binding.getOperationInfo() && binding.getOperationInfo().isOneWay()) {
closeInput(message);
return;
}
Message out = ex.getOutMessage();
if (out != null) {
getBackChannelConduit(message);
if (binding != null) {
out.put(MessageInfo.class, binding.getOperationInfo().getOutput());
out.put(BindingMessageInfo.class, binding.getOutput());
}
InterceptorChain outChain = out.getInterceptorChain();
if (outChain == null) {
outChain = OutgoingChainInterceptor.getChain(ex, chainCache);
out.setInterceptorChain(outChain);
}
outChain.doIntercept(out);
}
}
private void closeInput(Message message) {
InputStream is = message.getContent(InputStream.class);
if (is != null) {
try {
is.close();
message.removeContent(InputStream.class);
} catch (IOException ioex) {
//ignore
}
}
}
protected static Conduit getBackChannelConduit(Message message) {
Conduit conduit = null;
Exchange ex = message.getExchange();
if (ex.getConduit(message) == null
&& ex.getDestination() != null) {
try {
conduit = ex.getDestination().getBackChannel(ex.getInMessage(), null, null);
ex.put(ConduitSelector.class,
new PreexistingConduitSelector(conduit, ex.get(Endpoint.class)));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return conduit;
}
public static InterceptorChain getOutInterceptorChain(Exchange ex) {
Bus bus = ex.get(Bus.class);
Binding binding = ex.get(Binding.class);
PhaseManager pm = bus.getExtension(PhaseManager.class);
PhaseInterceptorChain chain = new PhaseInterceptorChain(pm.getOutPhases());
Endpoint ep = ex.get(Endpoint.class);
List> il = ep.getOutInterceptors();
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Interceptors contributed by endpoint: " + il);
}
chain.add(il);
il = ep.getService().getOutInterceptors();
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Interceptors contributed by service: " + il);
}
chain.add(il);
il = bus.getOutInterceptors();
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Interceptors contributed by bus: " + il);
}
chain.add(il);
if (binding != null) {
il = binding.getOutInterceptors();
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Interceptors contributed by binding: " + il);
}
chain.add(il);
}
modifyChain(chain, ex);
chain.setFaultObserver(ep.getOutFaultObserver());
return chain;
}
private static void modifyChain(PhaseInterceptorChain chain, Exchange ex) {
modifyChain(chain, ex.getInMessage());
modifyChain(chain, ex.getOutMessage());
}
private static void modifyChain(PhaseInterceptorChain chain, Message m) {
if (m == null) {
return;
}
Collection providers
= CastUtils.cast((Collection)m.get(Message.INTERCEPTOR_PROVIDERS));
if (providers != null) {
for (InterceptorProvider p : providers) {
chain.add(p.getOutInterceptors());
}
}
Collection> is
= CastUtils.cast((Collection)m.get(Message.OUT_INTERCEPTORS));
if (is != null) {
chain.add(is);
}
if (m.getDestination() instanceof InterceptorProvider) {
chain.add(((InterceptorProvider)m.getDestination()).getOutInterceptors());
}
}
private static PhaseInterceptorChain getChain(Exchange ex, PhaseChainCache chainCache) {
Bus bus = ex.get(Bus.class);
Binding binding = ex.get(Binding.class);
Endpoint ep = ex.get(Endpoint.class);
List> i1 = bus.getOutInterceptors();
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Interceptors contributed by bus: " + i1);
}
List> i2 = ep.getService().getOutInterceptors();
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Interceptors contributed by service: " + i2);
}
List> i3 = ep.getOutInterceptors();
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Interceptors contributed by endpoint: " + i3);
}
List> i4 = null;
if (binding != null) {
i4 = binding.getOutInterceptors();
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Interceptors contributed by binding: " + i4);
}
}
List> i5 = null;
if (ep.getService().getDataBinding() instanceof InterceptorProvider) {
i5 = ((InterceptorProvider)ep.getService().getDataBinding()).getOutInterceptors();
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Interceptors contributed by databinding: " + i5);
}
if (i4 == null) {
i4 = i5;
i5 = null;
}
}
PhaseInterceptorChain chain;
if (i5 != null) {
chain = chainCache.get(bus.getExtension(PhaseManager.class).getOutPhases(),
i1, i2, i3, i4, i5);
} else if (i4 != null) {
chain = chainCache.get(bus.getExtension(PhaseManager.class).getOutPhases(),
i1, i2, i3, i4);
} else {
chain = chainCache.get(bus.getExtension(PhaseManager.class).getOutPhases(),
i1, i2, i3);
}
modifyChain(chain, ex);
chain.setFaultObserver(ep.getOutFaultObserver());
return chain;
}
}
