DurableConsumerCloseAndReconnectTest xref

    1   /***
    2    *
    3    * Copyright 2004 Protique Ltd
    4    *
    5    * Licensed under the Apache License, Version 2.0 (the "License");
    6    * you may not use this file except in compliance with the License.
    7    * You may obtain a copy of the License at
    8    *
    9    * http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   *
    17   **/
    18  package org.codehaus.activemq.usecases;
    19
    20  import org.codehaus.activemq.TestSupport;
    21
    22  import javax.jms.Connection;
    23  import javax.jms.DeliveryMode;
    24  import javax.jms.Destination;
    25  import javax.jms.JMSException;
    26  import javax.jms.Message;
    27  import javax.jms.MessageConsumer;
    28  import javax.jms.MessageProducer;
    29  import javax.jms.Session;
    30  import javax.jms.Topic;
    31
    32  /***
    33   * @version $Revision: 1.7 $
    34   */
    35  public class DurableConsumerCloseAndReconnectTest extends TestSupport {
    36      protected static final long RECEIVE_TIMEOUT = 5000L;
    37
    38      private Connection connection;
    39      private Session session;
    40      private MessageConsumer consumer;
    41      private MessageProducer producer;
    42      private Destination destination;
    43
    44      public void testCreateDurableConsumerCloseThenReconnect() throws Exception {
    45          // force the server to stay up across both connection tests
    46          Connection dummyConnection = createConnection();
    47
    48          consumeMessagesDeliveredWhileConsumerClosed();
    49
    50          dummyConnection.close();
    51
    52          // now lets try again without one connection open
    53          consumeMessagesDeliveredWhileConsumerClosed();
    54      }
    55
    56      protected void consumeMessagesDeliveredWhileConsumerClosed() throws Exception {
    57          makeConsumer();
    58          closeConsumer();
    59
    60          publish();
    61
    62          // wait a few moments for the close to really occur
    63          Thread.sleep(1000);
    64
    65          makeConsumer();
    66
    67          Message message = consumer.receive(RECEIVE_TIMEOUT);
    68          assertTrue("Should have received a message!", message != null);
    69
    70          closeConsumer();
    71
    72          System.out.println("Now lets create the consumer again and because we didn't ack, we should get it again");
    73          makeConsumer();
    74
    75          message = consumer.receive(RECEIVE_TIMEOUT);
    76          assertTrue("Should have received a message!", message != null);
    77          message.acknowledge();
    78
    79          closeConsumer();
    80
    81          System.out.println("Now lets create the consumer again and because we didn't ack, we should get it again");
    82          makeConsumer();
    83
    84          message = consumer.receive(2000);
    85          assertTrue("Should have no more messages left!", message == null);
    86
    87          closeConsumer();
    88
    89          System.out.println("Lets publish one more message now");
    90          publish();
    91
    92          makeConsumer();
    93          message = consumer.receive(RECEIVE_TIMEOUT);
    94          assertTrue("Should have received a message!", message != null);
    95          message.acknowledge();
    96
    97          closeConsumer();
    98      }
    99
    100     protected void publish() throws Exception {
    101         connection = createConnection();
    102         connection.start();
    103
    104         session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);
    105         destination = createDestination();
    106
    107         producer = session.createProducer(destination);
    108         producer.setDeliveryMode(DeliveryMode.PERSISTENT);
    109
    110         producer.send(session.createTextMessage("This is a test"));
    111
    112         producer.close();
    113         producer = null;
    114         closeSession();
    115     }
    116
    117     protected Destination createDestination() throws JMSException {
    118         if (isTopic()) {
    119             return session.createTopic(getSubject());
    120         }
    121         else {
    122             return session.createQueue(getSubject());
    123         }
    124     }
    125
    126     protected boolean isTopic() {
    127         return true;
    128     }
    129
    130     protected void closeConsumer() throws JMSException {
    131         consumer.close();
    132         consumer = null;
    133         closeSession();
    134     }
    135
    136     protected void closeSession() throws JMSException {
    137         session.close();
    138         session = null;
    139         connection.close();
    140         connection = null;
    141     }
    142
    143     protected void makeConsumer() throws Exception {
    144         String durableName = getName();
    145         String clientID = getSubject();
    146         System.out.println("Creating a durable subscribe for clientID: " + clientID + " and durable name: " + durableName);
    147         createSession(clientID);
    148         consumer = createConsumer(durableName);
    149     }
    150
    151     private MessageConsumer createConsumer(String durableName) throws JMSException {
    152         if (destination instanceof Topic) {
    153             return session.createDurableSubscriber((Topic) destination, durableName);
    154         }
    155         else {
    156             return session.createConsumer(destination);
    157         }
    158     }
    159
    160     protected void createSession(String clientID) throws Exception {
    161         connection = createConnection();
    162         connection.setClientID(clientID);
    163         connection.start();
    164
    165         session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);
    166         destination = createDestination();
    167     }
    168 }