JMXRemoveQueueThenSendIgnoredTest.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
 * limitations under the License.
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package org.apache.activemq.usecases;

import javax.jms.DeliveryMode;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.QueueConnection;
import javax.jms.QueueSession;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.management.ObjectName;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.jmx.QueueViewMBean;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import static org.junit.Assert.assertEquals;

public class JMXRemoveQueueThenSendIgnoredTest {

   private static final Logger LOG = LoggerFactory.getLogger(JMXRemoveQueueThenSendIgnoredTest.class);
   private static final String domain = "org.apache.activemq";

   private BrokerService brokerService;
   private MessageProducer producer;
   private QueueSession session;
   private QueueConnection connection;
   private Queue queue;
   private int count = 1;

   @Before
   public void setUp() throws Exception {
      brokerService = new BrokerService();
      brokerService.setBrokerName("dev");
      brokerService.setPersistent(false);
      brokerService.setUseJmx(true);
      brokerService.addConnector("tcp://localhost:0");
      brokerService.start();

      final String brokerUri = brokerService.getTransportConnectors().get(0).getPublishableConnectString();

      ActiveMQConnectionFactory activeMQConnectionFactory = new ActiveMQConnectionFactory(brokerUri);
      connection = activeMQConnectionFactory.createQueueConnection();
      session = connection.createQueueSession(true, Session.AUTO_ACKNOWLEDGE/*SESSION_TRANSACTED*/);
      queue = session.createQueue("myqueue");
      producer = session.createProducer(queue);
      producer.setDeliveryMode(DeliveryMode.PERSISTENT);

      connection.start();
   }

   @Test
   public void testRemoveQueueAndProduceAfterNewConsumerAdded() throws Exception {
      MessageConsumer firstConsumer = registerConsumer();
      produceMessage();
      Message message = firstConsumer.receive(5000);
      LOG.info("Received message " + message);

      assertEquals(1, numberOfMessages());
      firstConsumer.close();
      session.commit();
      Thread.sleep(1000);

      removeQueue();
      Thread.sleep(1000);

      MessageConsumer secondConsumer = registerConsumer();
      produceMessage();
      message = secondConsumer.receive(5000);
      LOG.debug("Received message " + message);

      assertEquals(1, numberOfMessages());
      secondConsumer.close();
   }

   @Test
   public void testRemoveQueueAndProduceBeforeNewConsumerAdded() throws Exception {
      MessageConsumer firstConsumer = registerConsumer();
      produceMessage();
      Message message = firstConsumer.receive(5000);
      LOG.info("Received message " + message);

      assertEquals(1, numberOfMessages());
      firstConsumer.close();
      session.commit();
      Thread.sleep(1000);

      removeQueue();
      Thread.sleep(1000);

      produceMessage();
      MessageConsumer secondConsumer = registerConsumer();
      message = secondConsumer.receive(5000);
      LOG.debug("Received message " + message);

      assertEquals(1, numberOfMessages());
      secondConsumer.close();
   }

   private MessageConsumer registerConsumer() throws JMSException {
      MessageConsumer consumer = session.createConsumer(queue);
      return consumer;
   }

   private int numberOfMessages() throws Exception {
      ObjectName queueViewMBeanName = new ObjectName(domain + ":destinationType=Queue,destinationName=myqueue,type=Broker,brokerName=dev");
      QueueViewMBean queue = (QueueViewMBean) brokerService.getManagementContext().newProxyInstance(queueViewMBeanName, QueueViewMBean.class, true);
      long size = queue.getQueueSize();
      return (int) size;
   }

   private void removeQueue() throws Exception {
      LOG.debug("Removing Destination: myqueue");
      brokerService.getAdminView().removeQueue("myqueue");
   }

   private void produceMessage() throws JMSException {
      TextMessage textMessage = session.createTextMessage();
      textMessage.setText("Sending message: " + count++);
      LOG.debug("Sending message: " + textMessage);
      producer.send(textMessage);
      session.commit();
   }

   @After
   public void tearDown() throws Exception {
      connection.close();
      brokerService.stop();
   }
}