ActiveMQ example source code file (FailoverStaticNetworkTest.java)

This example ActiveMQ source code file (FailoverStaticNetworkTest.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

brokerservice, brokerservice, connectionfactory, exception, exception, executorservice, hashmap, jmsexception, net, network, ssl, string, string, test, test, threading, threads, transportconnector, util, vector

The ActiveMQ FailoverStaticNetworkTest.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.network;

import java.net.URI;
import java.util.HashMap;
import java.util.Vector;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;


import static org.junit.Assert.assertTrue;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.JMSException;
import javax.jms.MessageConsumer;
import javax.jms.Session;
import javax.net.ssl.KeyManager;
import javax.net.ssl.TrustManager;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.SslContext;
import org.apache.activemq.broker.TransportConnector;
import org.apache.activemq.command.ActiveMQDestination;
import org.apache.activemq.transport.tcp.SslBrokerServiceTest;
import org.apache.activemq.util.IntrospectionSupport;
import org.apache.activemq.util.Wait;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

public class FailoverStaticNetworkTest {
    protected static final Logger LOG = LoggerFactory.getLogger(FailoverStaticNetworkTest.class);

	private final static String DESTINATION_NAME = "testQ";
	protected BrokerService brokerA;
    protected BrokerService brokerA1;
    protected BrokerService brokerB;
    protected BrokerService brokerC;


    private SslContext sslContext;

    protected BrokerService createBroker(String scheme, String listenPort, String[] networkToPorts) throws Exception {
        return createBroker(scheme, listenPort, networkToPorts, null);
    }

    protected BrokerService createBroker(String scheme, String listenPort, String[] networkToPorts,
                                         HashMap<String, String> networkProps) throws Exception {
        BrokerService broker = new BrokerService();
        broker.setUseJmx(false);
        broker.getManagementContext().setCreateConnector(false);
        broker.setSslContext(sslContext);
        broker.setDeleteAllMessagesOnStartup(true);
        broker.setBrokerName("Broker_" + listenPort);
        broker.addConnector(scheme + "://localhost:" + listenPort);
        if (networkToPorts != null && networkToPorts.length > 0) {
            StringBuilder builder = new StringBuilder("static:(failover:(" + scheme + "://localhost:");
            builder.append(networkToPorts[0]);
            for (int i=1;i<networkToPorts.length; i++) {
                builder.append("," + scheme + "://localhost:" + networkToPorts[i]);
            }
            // limit the reconnects in case of initial random connection to slave
            // leaving randomize on verifies that this config is picked up
            builder.append(")?maxReconnectAttempts=1)");
            NetworkConnector nc = broker.addNetworkConnector(builder.toString());
            if (networkProps != null) {
                IntrospectionSupport.setProperties(nc, networkProps);
            }
        }
        return broker;
    }

    private BrokerService createBroker(String listenPort, String dataDir) throws Exception {
        BrokerService broker = new BrokerService();
        broker.setUseJmx(false);
        broker.getManagementContext().setCreateConnector(false);
        broker.setBrokerName("Broker_Shared");
        // lazy create transport connector on start completion
        TransportConnector connector = new TransportConnector();
        connector.setUri(new URI("tcp://localhost:" + listenPort));
        broker.addConnector(connector);
        broker.setDataDirectory(dataDir);
        return broker;
    }

    @Before
    public void setUp() throws Exception {
        KeyManager[] km = SslBrokerServiceTest.getKeyManager();
        TrustManager[] tm = SslBrokerServiceTest.getTrustManager();
        sslContext = new SslContext(km, tm, null);
    }
    
    @After
    public void tearDown() throws Exception {
        brokerB.stop();
        brokerB.waitUntilStopped();
        
        brokerA.stop();
        brokerA.waitUntilStopped();

        if (brokerA1 != null) {
            brokerA1.stop();
            brokerA1.waitUntilStopped();
        }

        if (brokerC != null) {
            brokerC.stop();
            brokerC.waitUntilStopped();
        }
    }

    @Test
    public void testSendReceiveAfterReconnect() throws Exception {
        brokerA = createBroker("tcp", "61617", null);
        brokerA.start();
        brokerB = createBroker("tcp", "62617", new String[]{"61617"});
        brokerB.start();
        doTestNetworkSendReceive();

        LOG.info("stopping brokerA");
        brokerA.stop();
        brokerA.waitUntilStopped();

        LOG.info("restarting brokerA");
        brokerA = createBroker("tcp", "61617", null);
        brokerA.start();

        doTestNetworkSendReceive();
    }

    @Test
    public void testSendReceiveFailover() throws Exception {
        brokerA = createBroker("tcp", "61617", null);
        brokerA.start();
        brokerB = createBroker("tcp", "62617", new String[]{"61617", "63617"});
        brokerB.start();
        doTestNetworkSendReceive();

        LOG.info("stopping brokerA");
        brokerA.stop();
        brokerA.waitUntilStopped();

        LOG.info("restarting brokerA");
        brokerA = createBroker("tcp", "63617", null);
        brokerA.start();

        doTestNetworkSendReceive();
    }

    @Test
    public void testSendReceiveFailoverDuplex() throws Exception {
        final Vector<Throwable> errors = new Vector();
        final String dataDir = "target/data/shared";
        brokerA = createBroker("61617", dataDir);
        brokerA.start();

        final BrokerService slave = createBroker("63617", dataDir);
        brokerA1 = slave;
        ExecutorService executor = Executors.newCachedThreadPool();
        executor.execute(new Runnable() {
            public void run() {
                try {
                    slave.start();
                } catch (Exception e) {
                    e.printStackTrace();
                    errors.add(e);
                }
            }
        });
        executor.shutdown();

        HashMap<String, String> networkConnectorProps = new HashMap();
        networkConnectorProps.put("duplex", "true");
        brokerB = createBroker("tcp", "62617", new String[]{"61617", "63617"}, networkConnectorProps);
        brokerB.start();

        doTestNetworkSendReceive(brokerA, brokerB);
        doTestNetworkSendReceive(brokerB, brokerA);

        LOG.info("stopping brokerA (master shared_broker)");
        brokerA.stop();
        brokerA.waitUntilStopped();

        // wait for slave to start
        brokerA1.waitUntilStarted();

        doTestNetworkSendReceive(brokerA1, brokerB);
        doTestNetworkSendReceive(brokerB, brokerA1);

        assertTrue("No unexpected exceptions " + errors, errors.isEmpty());
    }

    @Test
    // master slave piggy in the middle setup
    public void testSendReceiveFailoverDuplexWithPIM() throws Exception {
        final String dataDir = "target/data/shared/pim";
        brokerA = createBroker("61617", dataDir);
        brokerA.start();

        final BrokerService slave = createBroker("63617", dataDir);
        brokerA1 = slave;
        ExecutorService executor = Executors.newCachedThreadPool();
        executor.execute(new Runnable() {
            public void run() {
                try {
                    slave.start();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
        executor.shutdown();

        HashMap<String, String> networkConnectorProps = new HashMap();
        networkConnectorProps.put("duplex", "true");
        networkConnectorProps.put("networkTTL", "2");

        brokerB = createBroker("tcp", "62617", new String[]{"61617", "63617"}, networkConnectorProps);
        brokerB.start();

        assertTrue("all props applied", networkConnectorProps.isEmpty());
        networkConnectorProps.put("duplex", "true");
        networkConnectorProps.put("networkTTL", "2");

        brokerC = createBroker("tcp", "64617", new String[]{"61617", "63617"}, networkConnectorProps);
        brokerC.start();
        assertTrue("all props applied a second time", networkConnectorProps.isEmpty());

        //Thread.sleep(4000);
        doTestNetworkSendReceive(brokerC, brokerB);
        doTestNetworkSendReceive(brokerB, brokerC);

        LOG.info("stopping brokerA (master shared_broker)");
        brokerA.stop();
        brokerA.waitUntilStopped();

        doTestNetworkSendReceive(brokerC, brokerB);
        doTestNetworkSendReceive(brokerB, brokerC);

        brokerC.stop();
        brokerC.waitUntilStopped();
    }

    /**
     * networked broker started after target so first connect attempt succeeds
     * start order is important
     */
    @Test
    public void testSendReceive() throws Exception {
              
        brokerA = createBroker("tcp", "61617", null);
        brokerA.start();        
        brokerB = createBroker("tcp", "62617", new String[]{"61617","1111"});
        brokerB.start();
  
        doTestNetworkSendReceive();
    }

    @Test
    public void testSendReceiveSsl() throws Exception {
              
        brokerA = createBroker("ssl", "61617", null);
        brokerA.start();        
        brokerB = createBroker("ssl", "62617", new String[]{"61617", "1111"});
        brokerB.start();
  
        doTestNetworkSendReceive();
    }

    private void doTestNetworkSendReceive() throws Exception, JMSException {
        doTestNetworkSendReceive(brokerB, brokerA);
    }

    private void doTestNetworkSendReceive(BrokerService to, BrokerService from) throws Exception, JMSException {

        LOG.info("Creating Consumer on the networked broker ..." + from);
        
        SslContext.setCurrentSslContext(sslContext);
        // Create a consumer on brokerA
        ConnectionFactory consFactory = createConnectionFactory(from);
        Connection consConn = consFactory.createConnection();
        consConn.start();
        Session consSession = consConn.createSession(false, Session.AUTO_ACKNOWLEDGE);
        ActiveMQDestination destination = (ActiveMQDestination) consSession.createQueue(DESTINATION_NAME);
        final MessageConsumer consumer = consSession.createConsumer(destination);

        LOG.info("publishing to " + to);

        sendMessageTo(destination, to);
        
        boolean gotMessage = Wait.waitFor(new Wait.Condition() {
            public boolean isSatisified() throws Exception {
                return consumer.receive(1000) != null;
            }      
        });
        try {
            consConn.close();
        } catch (JMSException ignored) {
        }
        assertTrue("consumer on A got message", gotMessage);
    }

    private void sendMessageTo(ActiveMQDestination destination, BrokerService brokerService) throws Exception {
        ConnectionFactory factory = createConnectionFactory(brokerService);
        Connection conn = factory.createConnection();
        conn.start();
        Session session = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);
        session.createProducer(destination).send(session.createTextMessage("Hi"));
        conn.close();
    }
    
    protected ConnectionFactory createConnectionFactory(final BrokerService broker) throws Exception {    
        String url = ((TransportConnector) broker.getTransportConnectors().get(0)).getServer().getConnectURI().toString();
        ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(url);
        connectionFactory.setOptimizedMessageDispatch(true);
        connectionFactory.setDispatchAsync(false);
        connectionFactory.setUseAsyncSend(false);
        connectionFactory.setOptimizeAcknowledge(false);
        connectionFactory.setAlwaysSyncSend(true);
        return connectionFactory;
    }
}