ActiveMQ example source code file (MemoryAllocationTest.java)

This example ActiveMQ source code file (MemoryAllocationTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - ActiveMQ tags/keywords

activemqconnectionfactory, brokerservice, brokerservice, destination, exception, exception, jmsexception, logger, message_count, string, temporaryqueue, temporaryqueue, temporarytopic, temporarytopic

The ActiveMQ MemoryAllocationTest.java source code

/**
 * 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.perf;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TemporaryQueue;
import javax.jms.TemporaryTopic;

import junit.framework.TestCase;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 
 */
public class MemoryAllocationTest extends TestCase {

    protected static final int MESSAGE_COUNT = 2000;
    private static final Logger LOG = LoggerFactory.getLogger(MemoryAllocationTest.class);

    protected BrokerService broker;
    protected String bindAddress = "vm://localhost";
    protected int topicCount;

    public void testPerformance() throws Exception {
        ConnectionFactory factory = createConnectionFactory();
        Connection connection = factory.createConnection();
        for (int i = 0; i < MESSAGE_COUNT; i++) {

            Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
            Destination dest = session.createTemporaryTopic();
            session.createConsumer(dest);
            MessageProducer mp = session.createProducer(dest);
            Message msg = session.createTextMessage("test" + i);
            mp.send(msg);
            session.close();
            releaseDestination(dest);
            if (i % 500 == 0) {
                LOG.info("Iterator " + i);
            }
        }
        connection.close();
    }

    protected Destination getDestination(Session session) throws JMSException {
        String topicName = getClass().getName() + "." + topicCount++;
        return session.createTopic(topicName);
    }

    protected void releaseDestination(Destination dest) throws JMSException {
        if (dest instanceof TemporaryTopic) {
            TemporaryTopic tt = (TemporaryTopic)dest;
            tt.delete();
        } else if (dest instanceof TemporaryQueue) {
            TemporaryQueue tq = (TemporaryQueue)dest;
            tq.delete();
        }
    }

    protected void setUp() throws Exception {
        if (broker == null) {
            broker = createBroker();
        }
        super.setUp();
    }

    protected void tearDown() throws Exception {
        super.tearDown();

        if (broker != null) {
            broker.stop();
        }
    }

    protected ActiveMQConnectionFactory createConnectionFactory() throws Exception {
        ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory(bindAddress);
        return cf;
    }

    protected BrokerService createBroker() throws Exception {
        BrokerService answer = new BrokerService();
        configureBroker(answer);
        answer.start();
        return answer;
    }

    protected void configureBroker(BrokerService answer) throws Exception {
        answer.setPersistent(false);
        answer.addConnector(bindAddress);
        answer.setDeleteAllMessagesOnStartup(true);
    }
}