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ActiveMQ example source code file (NumberOfDestinationsTest.java)

This example ActiveMQ source code file (NumberOfDestinationsTest.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, activemqconnectionfactory, brokerservice, brokerservice, destination, destination, exception, exception, file, io, kahadbpersistenceadapter, message_count, number_of_destinations, override, string

The ActiveMQ NumberOfDestinationsTest.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;

/**
 * A NumberOfDestinationsTest
 *
 */
import java.io.File;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageProducer;
import javax.jms.Session;
import junit.framework.TestCase;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.store.kahadb.KahaDBPersistenceAdapter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
 * 
 */
public class NumberOfDestinationsTest extends TestCase {
    protected static final int MESSAGE_COUNT = 1;
    protected static final int NUMBER_OF_DESTINATIONS = 100000;
    private static final Logger LOG = LoggerFactory.getLogger(NumberOfDestinationsTest.class);
    protected BrokerService broker;
    protected String bindAddress = "vm://localhost";
    protected int destinationCount;

    public void testDestinations() throws Exception {
        ConnectionFactory factory = createConnectionFactory();
        Connection connection = factory.createConnection();
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        MessageProducer mp = session.createProducer(null);
        for (int j = 0; j < NUMBER_OF_DESTINATIONS; j++) {
            Destination dest = getDestination(session);
          
            for (int i = 0; i < MESSAGE_COUNT; i++) {
                Message msg = session.createTextMessage("test" + i);
                mp.send(dest, msg);
                
            }
            if (j % 500 == 0) {
                LOG.info("Iterator " + j);
            }
        }
        
        connection.close();
    }

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

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

    @Override
    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 {
        File dataFileDir = new File("target/test-amq-data/perfTest/kahadb");

        KahaDBPersistenceAdapter kaha = new KahaDBPersistenceAdapter();
        kaha.setDirectory(dataFileDir);
        //answer.setUseJmx(false);

        // The setEnableJournalDiskSyncs(false) setting is a little dangerous right now, as I have not verified 
        // what happens if the index is updated but a journal update is lost.
        // Index is going to be in consistent, but can it be repaired?
        //kaha.setEnableJournalDiskSyncs(false);
        // Using a bigger journal file size makes he take fewer spikes as it is not switching files as often.
        //kaha.setJournalMaxFileLength(1024*100);
        
        // small batch means more frequent and smaller writes
        //kaha.setIndexWriteBatchSize(100);
        // do the index write in a separate thread
        //kaha.setEnableIndexWriteAsync(true);
        
        answer.setPersistenceAdapter(kaha);
        answer.setAdvisorySupport(false);
        answer.setEnableStatistics(false);
        answer.addConnector(bindAddress);
        answer.setDeleteAllMessagesOnStartup(true);
    }
}

Other ActiveMQ examples (source code examples)

Here is a short list of links related to this ActiveMQ NumberOfDestinationsTest.java source code file:

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