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/*
*
* 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.qpid.cluster;
import org.apache.qpid.client.AMQConnection;
import org.apache.qpid.client.AMQSession;
import org.apache.qpid.client.AMQTopic;
import org.apache.qpid.client.AMQQueue;
import org.apache.qpid.AMQException;
import org.apache.qpid.framing.AMQShortString;
import org.apache.qpid.exchange.ExchangeDefaults;
import org.apache.qpid.url.URLSyntaxException;
import javax.jms.MessageListener;
import javax.jms.Message;
import javax.jms.Session;
import javax.jms.JMSException;
import javax.jms.MessageProducer;
import javax.jms.TextMessage;
import java.util.Random;
public class Client
{
private final Random random = new Random();
private final String name;
private final Session session;
private final MessageProducer topicProducer;
private final MessageProducer queueProducer;
Client(AMQConnection connection, String name) throws JMSException, InterruptedException
{
this.name = name;
session = connection.createSession(false, AMQSession.NO_ACKNOWLEDGE);
AMQTopic topic = new AMQTopic(((AMQSession)session).getDefaultTopicExchangeName(), new AMQShortString("cluster_test_topic"));
AMQQueue queue = new AMQQueue(((AMQSession)session).getDefaultQueueExchangeName(), new AMQShortString("cluster_test_queue"));
topicProducer = session.createProducer(topic);
queueProducer = session.createProducer(queue);
//subscribe to a known topic
session.createConsumer(topic).setMessageListener(new TopicHandler());
//subscribe to a known queue
session.createConsumer(queue).setMessageListener(new QueueHandler());
connection.start();
while(true)
{
Thread.sleep(random.nextInt(60000));
sendToQueue(name + ":" + randomString(5));
}
}
private synchronized void sendToTopic(String message) throws JMSException
{
topicProducer.send(session.createTextMessage(message));
}
private synchronized void sendToQueue(String message) throws JMSException
{
queueProducer.send(session.createTextMessage(message));
}
private String randomString(int length){
char[] c = new char[length];
for(int i = 0; i < length; i++)
{
c[i] = (char) ('A' + random.nextInt(26));
}
return new String(c);
}
private class QueueHandler implements MessageListener
{
public void onMessage(Message message)
{
try
{
sendToTopic(((TextMessage) message).getText());
}
catch (JMSException e)
{
e.printStackTrace();
}
}
}
private class TopicHandler implements MessageListener
{
public void onMessage(Message message)
{
try
{
System.out.println(((TextMessage) message).getText());
}
catch (JMSException e)
{
e.printStackTrace();
}
}
}
public static void main(String[] argv) throws AMQException, JMSException, InterruptedException, URLSyntaxException
{
//assume args describe the set of brokers to try
String clientName = argv.length > 1 ? argv[1] : "testClient";
new Client(new AMQConnection(argv.length > 0 ? argv[0] : "vm://:1", "guest", "guest", clientName, "/test"), clientName);
}
}
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