ActiveMQ example source code file (TopicSubscriptionTest.java)

This example ActiveMQ source code file (TopicSubscriptionTest.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

exception, exception, mb, mb, queuesubscriptiontest, queuesubscriptiontest, topicsubscriptiontest, topicsubscriptiontest

The ActiveMQ TopicSubscriptionTest.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.broker;

import org.apache.activemq.TestSupport;
import org.apache.activemq.command.ActiveMQDestination;
import org.apache.activemq.util.ThreadTracker;

public class TopicSubscriptionTest extends QueueSubscriptionTest {

    protected void setUp() throws Exception {
        super.setUp();
        durable = true;
        topic = true;
    }
    
    protected void tearDown() throws Exception {
        super.tearDown();
        ThreadTracker.result();
    }

    public void testManyProducersManyConsumers() throws Exception {
        consumerCount = 40;
        producerCount = 20;
        messageCount  = 100;
        messageSize   = 1; 
        prefetchCount = 10;

        doMultipleClientsTest();

        assertTotalMessagesReceived(messageCount * producerCount * consumerCount);
        assertDestinationMemoryUsageGoesToZero();
    }

    public void testOneProducerTwoConsumersLargeMessagesOnePrefetch() throws Exception {
        consumerCount = 2;
        producerCount = 1;
        messageCount  = 10;
        messageSize   = 1024 * 1024 * 1; // 1 MB
        prefetchCount = 1;

        doMultipleClientsTest();

        assertTotalMessagesReceived(messageCount * consumerCount * producerCount);
        assertDestinationMemoryUsageGoesToZero();
    }

    public void testOneProducerTwoConsumersSmallMessagesOnePrefetch() throws Exception {
        consumerCount = 2;
        producerCount = 1;
        prefetchCount = 1;
        messageSize   = 1024;
        messageCount  = 1000;

        doMultipleClientsTest();

        assertTotalMessagesReceived(messageCount * consumerCount * producerCount);
        assertDestinationMemoryUsageGoesToZero();
    }

    public void testOneProducerTwoConsumersSmallMessagesLargePrefetch() throws Exception {
        consumerCount = 2;
        producerCount = 1;
        messageCount  = 1000;
        messageSize   = 1024;
        prefetchCount = messageCount * 2;

        doMultipleClientsTest();

        assertTotalMessagesReceived(messageCount * consumerCount * producerCount);
    }

    public void testOneProducerTwoConsumersLargeMessagesLargePrefetch() throws Exception {
        consumerCount = 2;
        producerCount = 1;
        messageCount  = 10;
        messageSize   = 1024 * 1024 * 1; // 1 MB
        prefetchCount = messageCount * 2;

        doMultipleClientsTest();

        assertTotalMessagesReceived(messageCount * consumerCount * producerCount);
        assertDestinationMemoryUsageGoesToZero();
    }

    public void testOneProducerManyConsumersFewMessages() throws Exception {
        consumerCount = 50;
        producerCount = 1;
        messageCount  = 10;
        messageSize   = 1; // 1 byte
        prefetchCount = 10;

        doMultipleClientsTest();

        assertTotalMessagesReceived(messageCount * consumerCount * producerCount);
        assertDestinationMemoryUsageGoesToZero();
    }

    public void testOneProducerManyConsumersManyMessages() throws Exception {
        consumerCount = 50;
        producerCount = 1;
        messageCount  = 100;
        messageSize   = 1; // 1 byte
        prefetchCount = 10;

        doMultipleClientsTest();

        assertTotalMessagesReceived(messageCount * consumerCount * producerCount);
        assertDestinationMemoryUsageGoesToZero();
    }


    public void testManyProducersOneConsumer() throws Exception {
        consumerCount = 1;
        producerCount = 20;
        messageCount  = 100;
        messageSize   = 1; // 1 byte
        prefetchCount = 10;

        doMultipleClientsTest();

        assertTotalMessagesReceived(messageCount * producerCount * consumerCount);
        assertDestinationMemoryUsageGoesToZero();
    }
    
    private void assertDestinationMemoryUsageGoesToZero() throws Exception {
        assertEquals("destination memory is back to 0", 0, 
                TestSupport.getDestination(broker, ActiveMQDestination.transform(destination)).getMemoryUsage().getPercentUsage());
    }

}