TopicReplicationTest.java

/**
 * 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
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package org.apache.activemq.usecases;

import javax.jms.Destination;
import javax.jms.MessageConsumer;

import org.apache.activemq.JmsMultipleBrokersTestSupport;
import org.apache.activemq.util.MessageIdList;
import org.springframework.core.io.ClassPathResource;

public class TopicReplicationTest extends JmsMultipleBrokersTestSupport {

   public static final int MSG_COUNT = 10;

   public void testReplication() throws Exception {
      createBroker(new ClassPathResource("org/apache/activemq/usecases/replication-broker1.xml"));
      createBroker(new ClassPathResource("org/apache/activemq/usecases/replication-broker2.xml"));
      createBroker(new ClassPathResource("org/apache/activemq/usecases/replication-broker3.xml"));
      createBroker(new ClassPathResource("org/apache/activemq/usecases/replication-broker4.xml"));

      brokers.get("replication-broker1").broker.waitUntilStarted();
      brokers.get("replication-broker2").broker.waitUntilStarted();
      brokers.get("replication-broker3").broker.waitUntilStarted();
      brokers.get("replication-broker4").broker.waitUntilStarted();

      Destination dest = createDestination("replication", true);

      // Setup consumers
      MessageConsumer clientA = createConsumer("replication-broker2", dest);
      MessageConsumer clientB = createConsumer("replication-broker3", dest);
      MessageConsumer clientC = createConsumer("replication-broker4", dest);
      MessageConsumer clientD = createConsumer("replication-broker4", dest);

      //let consumers propagate around the network
      Thread.sleep(2000);

      // Get message count
      MessageIdList msgsA = getConsumerMessages("replication-broker2", clientA);
      MessageIdList msgsB = getConsumerMessages("replication-broker3", clientB);
      MessageIdList msgsC = getConsumerMessages("replication-broker4", clientC);
      MessageIdList msgsD = getConsumerMessages("replication-broker4", clientD);

      // send messages to broker1
      sendMessages("replication-broker1", dest, MSG_COUNT);

      msgsA.waitForMessagesToArrive(MSG_COUNT);
      msgsB.waitForMessagesToArrive(MSG_COUNT);
      msgsC.waitForMessagesToArrive(MSG_COUNT);
      msgsD.waitForMessagesToArrive(MSG_COUNT);

      assertEquals(MSG_COUNT, msgsA.getMessageCount());
      assertEquals(MSG_COUNT, msgsB.getMessageCount());
      assertEquals(MSG_COUNT, msgsC.getMessageCount());
      assertEquals(MSG_COUNT, msgsD.getMessageCount());

      // send messages to broker4
      sendMessages("replication-broker4", dest, MSG_COUNT);

      msgsA.waitForMessagesToArrive(2 * MSG_COUNT);
      msgsB.waitForMessagesToArrive(2 * MSG_COUNT);
      msgsC.waitForMessagesToArrive(2 * MSG_COUNT);
      msgsD.waitForMessagesToArrive(2 * MSG_COUNT);

      assertEquals(2 * MSG_COUNT, msgsA.getMessageCount());
      assertEquals(2 * MSG_COUNT, msgsB.getMessageCount());
      assertEquals(2 * MSG_COUNT, msgsC.getMessageCount());
      assertEquals(2 * MSG_COUNT, msgsD.getMessageCount());

      // send messages to broker3
      sendMessages("replication-broker3", dest, MSG_COUNT);

      msgsA.waitForMessagesToArrive(3 * MSG_COUNT);
      msgsB.waitForMessagesToArrive(3 * MSG_COUNT);
      msgsC.waitForMessagesToArrive(3 * MSG_COUNT);
      msgsD.waitForMessagesToArrive(3 * MSG_COUNT);

      assertEquals(3 * MSG_COUNT, msgsA.getMessageCount());
      assertEquals(3 * MSG_COUNT, msgsB.getMessageCount());
      assertEquals(3 * MSG_COUNT, msgsC.getMessageCount());
      assertEquals(3 * MSG_COUNT, msgsD.getMessageCount());

      // send messages to broker2
      sendMessages("replication-broker2", dest, MSG_COUNT);

      msgsA.waitForMessagesToArrive(4 * MSG_COUNT);
      msgsB.waitForMessagesToArrive(4 * MSG_COUNT);
      msgsC.waitForMessagesToArrive(4 * MSG_COUNT);
      msgsD.waitForMessagesToArrive(4 * MSG_COUNT);

      assertEquals(4 * MSG_COUNT, msgsA.getMessageCount());
      assertEquals(4 * MSG_COUNT, msgsB.getMessageCount());
      assertEquals(4 * MSG_COUNT, msgsC.getMessageCount());
      assertEquals(4 * MSG_COUNT, msgsD.getMessageCount());

   }

}