ActiveMQ example source code file (RetroactiveConsumerWithMessageQueryTest.java)

This example ActiveMQ source code file (RetroactiveConsumerWithMessageQueryTest.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, date, exception, exception, logger, messageconsumer, messageidlist, messageidlist, net, network, string, string, textmessage, update, uri, util

The ActiveMQ RetroactiveConsumerWithMessageQueryTest.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.test.retroactive;

import java.net.URI;
import java.util.Date;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.EmbeddedBrokerTestSupport;
import org.apache.activemq.broker.BrokerFactory;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.usecases.CreateLotsOfTemporaryQueuesTest;
import org.apache.activemq.util.MessageIdList;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 
 */
public class RetroactiveConsumerWithMessageQueryTest extends EmbeddedBrokerTestSupport {
    private static final Logger LOG = LoggerFactory.getLogger(RetroactiveConsumerWithMessageQueryTest.class);
    
    protected int messageCount = 20;
    protected Connection connection;
    protected Session session;

    public void testConsumeAndReceiveInitialQueryBeforeUpdates() throws Exception {

        // lets some messages
        connection = createConnection();
        session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        connection.start();

        MessageConsumer consumer = session.createConsumer(destination);
        MessageIdList listener = new MessageIdList();
        listener.setVerbose(true);
        consumer.setMessageListener(listener);

        MessageProducer producer = session.createProducer(destination);
        int updateMessageCount = messageCount - DummyMessageQuery.MESSAGE_COUNT;
        for (int i = 0; i < updateMessageCount; i++) {
            TextMessage message = session.createTextMessage("Update Message: " + i + " sent at: " + new Date());
            producer.send(message);
        }
        producer.close();
        LOG.info("Sent: " + updateMessageCount + " update messages");

        listener.assertMessagesReceived(messageCount);
    }

    protected void setUp() throws Exception {
        useTopic = true;
        bindAddress = "vm://localhost";
        super.setUp();
    }

    protected void tearDown() throws Exception {
        if (session != null) {
            session.close();
            session = null;
        }
        if (connection != null) {
            connection.close();
        }
        super.tearDown();
    }

    protected ConnectionFactory createConnectionFactory() throws Exception {
        ActiveMQConnectionFactory answer = new ActiveMQConnectionFactory(bindAddress);
        answer.setUseRetroactiveConsumer(true);
        return answer;
    }

    protected BrokerService createBroker() throws Exception {
        String uri = getBrokerXml();
        LOG.info("Loading broker configuration from the classpath with URI: " + uri);
        return BrokerFactory.createBroker(new URI("xbean:" + uri));
    }

    protected void startBroker() throws Exception {
        // broker already started by XBean
    }

    protected String getBrokerXml() {
        return "org/apache/activemq/test/retroactive/activemq-message-query.xml";
    }

}