/**
* 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.transport.local;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PipedInputStream;
import java.util.Map;
import java.util.Set;
import java.util.logging.Logger;
import org.apache.cxf.attachment.CachedOutputStream;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.helpers.CastUtils;
import org.apache.cxf.io.AbstractCachedOutputStream;
import org.apache.cxf.message.Exchange;
import org.apache.cxf.message.ExchangeImpl;
import org.apache.cxf.message.Message;
import org.apache.cxf.message.MessageImpl;
import org.apache.cxf.transport.AbstractConduit;
public class LocalConduit extends AbstractConduit {
public static final String IN_CONDUIT = LocalConduit.class.getName() + ".inConduit";
public static final String RESPONSE_CONDUIT = LocalConduit.class.getName() + ".inConduit";
public static final String IN_EXCHANGE = LocalConduit.class.getName() + ".inExchange";
public static final String DIRECT_DISPATCH = LocalConduit.class.getName() + ".directDispatch";
public static final String MESSAGE_FILTER_PROPERTIES = LocalConduit.class.getName() + ".filterProperties";
private static final Logger LOG = LogUtils.getL7dLogger(LocalConduit.class);
private LocalDestination destination;
private LocalTransportFactory transportFactory;
public LocalConduit(LocalTransportFactory transportFactory, LocalDestination destination) {
super(destination.getAddress());
this.destination = destination;
this.transportFactory = transportFactory;
}
public void prepare(final Message message) throws IOException {
if (!Boolean.TRUE.equals(message.get(DIRECT_DISPATCH))) {
dispatchViaPipe(message);
}
}
@Override
public void close(Message message) throws IOException {
if (Boolean.TRUE.equals(message.get(DIRECT_DISPATCH))) {
dispatchDirect(message);
}
super.close(message);
}
private void dispatchDirect(Message message) {
if (destination.getMessageObserver() == null) {
throw new IllegalStateException("Local destination does not have a MessageObserver on address "
+ destination.getAddress().getAddress().getValue());
}
MessageImpl copy = new MessageImpl();
copy.put(IN_CONDUIT, this);
copy.setDestination(destination);
copy(message, copy, transportFactory.getMessageFilterProperties());
// Create a new incoming exchange and store the original exchange for the response
ExchangeImpl ex = new ExchangeImpl();
ex.setInMessage(copy);
ex.put(IN_EXCHANGE, message.getExchange());
ex.setDestination(destination);
destination.getMessageObserver().onMessage(copy);
}
public static void copy(Message message, MessageImpl copy, Set<String> defaultFilter) {
Set<String> filter = CastUtils.cast((Set)message.get(MESSAGE_FILTER_PROPERTIES));
if (filter == null) {
filter = defaultFilter;
}
// copy all the contents
for (Map.Entry<String, Object> e : message.entrySet()) {
if (!filter.contains(e.getKey())) {
copy.put(e.getKey(), e.getValue());
}
}
MessageImpl.copyContent(message, copy);
}
private void dispatchViaPipe(final Message message) throws IOException {
final PipedInputStream stream = new PipedInputStream();
final LocalConduit conduit = this;
final Exchange exchange = message.getExchange();
if (destination.getMessageObserver() == null) {
throw new IllegalStateException("Local destination does not have a MessageObserver on address "
+ destination.getAddress().getAddress().getValue());
}
final Runnable receiver = new Runnable() {
public void run() {
MessageImpl inMsg = new MessageImpl();
inMsg.setContent(InputStream.class, stream);
inMsg.setDestination(destination);
inMsg.put(IN_CONDUIT, conduit);
ExchangeImpl ex = new ExchangeImpl();
ex.setInMessage(inMsg);
ex.put(IN_EXCHANGE, exchange);
destination.getMessageObserver().onMessage(inMsg);
}
};
final AbstractCachedOutputStream outStream = new CachedOutputStream(stream);
message.setContent(OutputStream.class, outStream);
// TODO: put on executor
new Thread(receiver).start();
}
protected Logger getLogger() {
return LOG;
}
}