GracefulClient.java

/*
 * 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.artemis.tests.integration.clientcrash;

import org.apache.activemq.artemis.api.core.TransportConfiguration;
import org.apache.activemq.artemis.api.core.client.ActiveMQClient;
import org.apache.activemq.artemis.api.core.client.ClientConsumer;
import org.apache.activemq.artemis.api.core.client.ClientMessage;
import org.apache.activemq.artemis.api.core.client.ClientProducer;
import org.apache.activemq.artemis.api.core.client.ClientSession;
import org.apache.activemq.artemis.api.core.client.ClientSessionFactory;
import org.apache.activemq.artemis.api.core.client.ServerLocator;
import org.apache.activemq.artemis.core.remoting.impl.netty.NettyConnectorFactory;
import org.apache.activemq.artemis.jms.client.ActiveMQTextMessage;
import org.jboss.logging.Logger;

/**
 * Code to be run in an external VM, via main()
 */
public class GracefulClient {
   private static final Logger log = Logger.getLogger(GracefulClient.class);


   public static void main(final String[] args) throws Exception {
      if (args.length != 2) {
         throw new Exception("require 2 arguments: queue name + message text");
      }
      String queueName = args[0];
      String messageText = args[1];

      try {
         ServerLocator locator = ActiveMQClient.createServerLocatorWithoutHA(new TransportConfiguration(NettyConnectorFactory.class.getName()));
         ClientSessionFactory sf = locator.createSessionFactory();
         ClientSession session = sf.createSession(false, true, true);
         ClientProducer producer = session.createProducer(queueName);
         ClientConsumer consumer = session.createConsumer(queueName);

         ClientMessage message = session.createMessage(ActiveMQTextMessage.TYPE, false, 0, System.currentTimeMillis(), (byte) 1);
         message.getBodyBuffer().writeString(messageText);
         producer.send(message);

         session.start();

         // block in receiving for 5 secs, we won't receive anything
         consumer.receive(5000);

         // this should silence any non-daemon thread and allow for graceful exit
         session.close();
         System.exit(0);
      } catch (Throwable t) {
         GracefulClient.log.error(t.getMessage(), t);
         System.exit(1);
      }
   }


   // Command implementation -----------------------------------------------------------------------

   // Public ---------------------------------------------------------------------------------------

   // Package protected ----------------------------------------------------------------------------

   // Protected ------------------------------------------------------------------------------------

   // Private --------------------------------------------------------------------------------------

   // Inner classes --------------------------------------------------------------------------------

}