ActiveMQ example source code file (AMQ2616Test.java)

This example ActiveMQ source code file (AMQ2616Test.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

activemqqueue, arraylist, atomicboolean, atomicboolean, brokerservice, connection, connection, exception, exception, file, io, kahadbpersistenceadapter, number, override, policyentry, util

The ActiveMQ AMQ2616Test.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.bugs;

import java.io.File;
import java.util.ArrayList;
import java.util.concurrent.atomic.AtomicBoolean;
import javax.jms.BytesMessage;
import javax.jms.Connection;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import junit.framework.TestCase;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.region.policy.FilePendingQueueMessageStoragePolicy;
import org.apache.activemq.broker.region.policy.PolicyEntry;
import org.apache.activemq.broker.region.policy.PolicyMap;
import org.apache.activemq.command.ActiveMQQueue;
import org.apache.activemq.store.kahadb.KahaDBPersistenceAdapter;
import org.apache.activemq.util.IOHelper;

public class AMQ2616Test extends TestCase {
    private static final int NUMBER = 2000;
    private BrokerService brokerService;
    private final ArrayList<Thread> threads = new ArrayList();
    String ACTIVEMQ_BROKER_BIND = "tcp://0.0.0.0:61616";
    AtomicBoolean shutdown = new AtomicBoolean();
    
    public void testQueueResourcesReleased() throws Exception{
        ActiveMQConnectionFactory fac = new ActiveMQConnectionFactory(ACTIVEMQ_BROKER_BIND);
        Connection tempConnection = fac.createConnection();
        tempConnection.start();
        Session tempSession = tempConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Queue tempQueue = tempSession.createTemporaryQueue();
        final MessageConsumer tempConsumer = tempSession.createConsumer(tempQueue);
               
        Connection testConnection = fac.createConnection();
        long startUsage = brokerService.getSystemUsage().getMemoryUsage().getUsage();
        Session testSession = testConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        MessageProducer testProducer = testSession.createProducer(tempQueue);
        byte[] payload = new byte[1024*4];
        for (int i = 0; i < NUMBER; i++ ) {
            BytesMessage msg = testSession.createBytesMessage();
            msg.writeBytes(payload);
            testProducer.send(msg);
        }
        long endUsage = brokerService.getSystemUsage().getMemoryUsage().getUsage();
        assertFalse(startUsage==endUsage);
        tempConnection.close();
        Thread.sleep(1000);
        endUsage = brokerService.getSystemUsage().getMemoryUsage().getUsage();
        assertEquals(startUsage,endUsage);
    }
   
    
    @Override
    protected void setUp() throws Exception {
        // Start an embedded broker up.
        brokerService = new BrokerService();

        KahaDBPersistenceAdapter adaptor = new KahaDBPersistenceAdapter();
        adaptor.setEnableJournalDiskSyncs(false);
        File file = new File("target/AMQ2616Test");
        IOHelper.mkdirs(file);
        IOHelper.deleteChildren(file);
        adaptor.setDirectory(file);
        brokerService.setPersistenceAdapter(adaptor);

        PolicyMap policyMap = new PolicyMap();
        PolicyEntry pe = new PolicyEntry();
        pe.setMemoryLimit(10 * 1024 * 1024);
        pe.setOptimizedDispatch(true);
        pe.setProducerFlowControl(false);
        pe.setExpireMessagesPeriod(1000);
        pe.setPendingQueuePolicy(new FilePendingQueueMessageStoragePolicy());
        policyMap.put(new ActiveMQQueue(">"), pe);
        brokerService.setDestinationPolicy(policyMap);
        brokerService.getSystemUsage().getMemoryUsage().setLimit(20 * 1024 * 1024);
        brokerService.getSystemUsage().getTempUsage().setLimit(200 * 1024 * 1024);
        brokerService.addConnector(ACTIVEMQ_BROKER_BIND);
        brokerService.start();
        new ActiveMQQueue(getName());
    }

    @Override
    protected void tearDown() throws Exception {
        // Stop any running threads.
        shutdown.set(true);
        for (Thread t : threads) {
            t.interrupt();
            t.join();
        }
        brokerService.stop();
    }

}