org.apache.activemq.proxy.ProxyConnector Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of activemq-core Show documentation
Show all versions of activemq-core Show documentation
The ActiveMQ Message Broker and Client implementations
/**
* 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.proxy;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Iterator;
import java.util.concurrent.CopyOnWriteArrayList;
import org.apache.activemq.Service;
import org.apache.activemq.transport.CompositeTransport;
import org.apache.activemq.transport.Transport;
import org.apache.activemq.transport.TransportAcceptListener;
import org.apache.activemq.transport.TransportFactory;
import org.apache.activemq.transport.TransportFilter;
import org.apache.activemq.transport.TransportServer;
import org.apache.activemq.util.ServiceStopper;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* @org.apache.xbean.XBean
*
* @version $Revision$
*/
public class ProxyConnector implements Service {
private static final Log LOG = LogFactory.getLog(ProxyConnector.class);
private TransportServer server;
private URI bind;
private URI remote;
private URI localUri;
private String name;
private CopyOnWriteArrayList connections = new CopyOnWriteArrayList();
public void start() throws Exception {
this.getServer().setAcceptListener(new TransportAcceptListener() {
public void onAccept(Transport localTransport) {
try {
Transport remoteTransport = createRemoteTransport();
ProxyConnection connection = new ProxyConnection(localTransport, remoteTransport);
connections.add(connection);
connection.start();
} catch (Exception e) {
onAcceptError(e);
}
}
public void onAcceptError(Exception error) {
LOG.error("Could not accept connection: " + error, error);
}
});
getServer().start();
LOG.info("Proxy Connector " + getName() + " Started");
}
public void stop() throws Exception {
ServiceStopper ss = new ServiceStopper();
if (this.server != null) {
ss.stop(this.server);
}
for (Iterator iter = connections.iterator(); iter.hasNext();) {
LOG.info("Connector stopped: Stopping proxy.");
ss.stop(iter.next());
}
ss.throwFirstException();
LOG.info("Proxy Connector " + getName() + " Stopped");
}
// Properties
// -------------------------------------------------------------------------
public URI getLocalUri() {
return localUri;
}
public void setLocalUri(URI localURI) {
this.localUri = localURI;
}
public URI getBind() {
return bind;
}
public void setBind(URI bind) {
this.bind = bind;
}
public URI getRemote() {
return remote;
}
public void setRemote(URI remote) {
this.remote = remote;
}
public TransportServer getServer() throws IOException, URISyntaxException {
if (server == null) {
server = createServer();
}
return server;
}
public void setServer(TransportServer server) {
this.server = server;
}
protected TransportServer createServer() throws IOException, URISyntaxException {
if (bind == null) {
throw new IllegalArgumentException("You must specify either a server or the bind property");
}
return TransportFactory.bind(bind);
}
private Transport createRemoteTransport() throws Exception {
Transport transport = TransportFactory.compositeConnect(remote);
CompositeTransport ct = (CompositeTransport)transport.narrow(CompositeTransport.class);
if (ct != null && localUri != null) {
ct.add(new URI[] {localUri});
}
// Add a transport filter so that can track the transport life cycle
transport = new TransportFilter(transport) {
public void stop() throws Exception {
LOG.info("Stopping proxy.");
super.stop();
connections.remove(this);
}
};
return transport;
}
public String getName() {
if (name == null) {
if (server != null) {
name = server.getConnectURI().toString();
} else {
name = "proxy";
}
}
return name;
}
public void setName(String name) {
this.name = name;
}
}