/*
* Copyright 2009 Red Hat, Inc.
* Red Hat 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.hornetq.jms.example;
import java.util.HashMap;
import java.util.concurrent.atomic.AtomicReference;
import javax.jms.ExceptionListener;
import javax.jms.JMSException;
import javax.jms.QueueConnection;
import javax.jms.QueueConnectionFactory;
import javax.management.MBeanServerConnection;
import javax.management.MBeanServerInvocationHandler;
import javax.management.ObjectName;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;
import javax.naming.InitialContext;
import org.hornetq.api.core.management.HornetQServerControl;
import org.hornetq.api.core.management.ObjectNameBuilder;
import org.hornetq.common.example.HornetQExample;
/**
* An example that shows how to kick off a client connected to HornetQby using JMX.
*
* @author <a href="mailto:jmesnil@redhat.com">Jeff Mesnil</a>
*/
public class ClientKickoffExample extends HornetQExample
{
private final String JMX_URL = "service:jmx:rmi:///jndi/rmi://localhost:3000/jmxrmi";
public static void main(final String[] args)
{
new ClientKickoffExample().run(args);
}
@Override
public boolean runExample() throws Exception
{
QueueConnection connection = null;
InitialContext initialContext = null;
try
{
// Step 1. Create an initial context to perform the JNDI lookup.
initialContext = getContext(0);
// Step 2. Perform a lookup on the Connection Factory
QueueConnectionFactory cf = (QueueConnectionFactory)initialContext.lookup("/ConnectionFactory");
// Step 3.Create a JMS Connection
connection = cf.createQueueConnection();
// Step 4. Set an exception listener on the connection to be notified after a problem occurred
final AtomicReference<JMSException> exception = new AtomicReference<JMSException>();
connection.setExceptionListener(new ExceptionListener()
{
public void onException(final JMSException e)
{
exception.set(e);
}
});
// Step 5. We start the connection
connection.start();
// Step 6. Create a HornetQServerControlMBean proxy to manage the server
ObjectName on = ObjectNameBuilder.DEFAULT.getHornetQServerObjectName();
JMXConnector connector = JMXConnectorFactory.connect(new JMXServiceURL(JMX_URL), new HashMap<String, String>());
MBeanServerConnection mbsc = connector.getMBeanServerConnection();
HornetQServerControl serverControl = (HornetQServerControl)MBeanServerInvocationHandler.newProxyInstance(mbsc,
on,
HornetQServerControl.class,
false);
// Step 7. List the remote address connected to the server
System.out.println("List of remote addresses connected to the server:");
System.out.println("----------------------------------");
String[] remoteAddresses = serverControl.listRemoteAddresses();
for (String remoteAddress : remoteAddresses)
{
System.out.println(remoteAddress);
}
System.out.println("----------------------------------");
// Step 8. Close the connections for the 1st remote address and kickoff the client
serverControl.closeConnectionsForAddress(remoteAddresses[0]);
// Sleep a little bit so that the stack trace from the server won't be
// mingled with the JMSException received on the ExceptionListener
Thread.sleep(1000);
// Step 9. Display the exception received by the connection's ExceptionListener
System.err.println("\nException received from the server:");
System.err.println("----------------------------------");
exception.get().printStackTrace();
System.err.println("----------------------------------");
return true;
}
finally
{
// Step 10. Be sure to close the resources!
if (initialContext != null)
{
initialContext.close();
}
if (connection != null)
{
connection.close();
}
}
}
}