/**
* 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.activemq.network;
import java.io.IOException;
import org.apache.activemq.command.BrokerId;
import org.apache.activemq.command.BrokerInfo;
import org.apache.activemq.command.Command;
import org.apache.activemq.command.ConsumerInfo;
import org.apache.activemq.command.NetworkBridgeFilter;
import org.apache.activemq.transport.Transport;
import org.apache.activemq.util.ServiceSupport;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* Forwards messages from the local broker to the remote broker based on demand.
*
* @org.apache.xbean.XBean
*
* @version $Revision$
*/
public class DemandForwardingBridge extends DemandForwardingBridgeSupport {
private static final Log LOG = LogFactory.getLog(DemandForwardingBridge.class);
protected final BrokerId remoteBrokerPath[] = new BrokerId[] {null};
protected Object brokerInfoMutex = new Object();
protected BrokerId remoteBrokerId;
public DemandForwardingBridge(NetworkBridgeConfiguration configuration, Transport localBroker,
Transport remoteBroker) {
super(configuration, localBroker, remoteBroker);
}
protected void serviceRemoteBrokerInfo(Command command) throws IOException {
synchronized (brokerInfoMutex) {
BrokerInfo remoteBrokerInfo = (BrokerInfo)command;
remoteBrokerId = remoteBrokerInfo.getBrokerId();
remoteBrokerPath[0] = remoteBrokerId;
remoteBrokerName = remoteBrokerInfo.getBrokerName();
if (localBrokerId != null) {
if (localBrokerId.equals(remoteBrokerId)) {
LOG.info("Disconnecting loop back connection.");
// waitStarted();
ServiceSupport.dispose(this);
}
}
remoteBrokerNameKnownLatch.countDown();
}
}
protected void addRemoteBrokerToBrokerPath(ConsumerInfo info) {
info.setBrokerPath(appendToBrokerPath(info.getBrokerPath(), getRemoteBrokerPath()));
}
protected void serviceLocalBrokerInfo(Command command) throws InterruptedException {
synchronized (brokerInfoMutex) {
localBrokerId = ((BrokerInfo)command).getBrokerId();
localBrokerPath[0] = localBrokerId;
if (remoteBrokerId != null) {
if (remoteBrokerId.equals(localBrokerId)) {
LOG.info("Disconnecting loop back connection.");
waitStarted();
ServiceSupport.dispose(this);
}
}
}
}
protected NetworkBridgeFilter createNetworkBridgeFilter(ConsumerInfo info) throws IOException {
return new NetworkBridgeFilter(remoteBrokerPath[0], configuration.getNetworkTTL());
}
protected BrokerId[] getRemoteBrokerPath() {
return remoteBrokerPath;
}
}