Examples of javax.jms.Message

javax.jms.Message
@version $Rev: 46019 $ $Date: 2004-09-14 03:56:06 -0600 (Tue, 14 Sep 2004) $

         TopicSession sess = conn.createTopicSession(true, 0);
         TopicPublisher pub = sess.createPublisher(topic);
         TopicSubscriber sub = sess.createSubscriber(topic);
         pub.setDeliveryMode(DeliveryMode.PERSISTENT);
         
         Message m = sess.createTextMessage("testing123");
         pub.publish(m);
         sess.commit();
         
         //receive but rollback
         TextMessage m2 = (TextMessage)sub.receive(3000);
                
         assertNotNull(m2);
         assertEquals("testing123", m2.getText());
         
         sess.rollback();
         
         conn.close();
         conn = cf.createTopicConnection();
         conn.start();
         
         TopicSession newsess = conn.createTopicSession(true, 0);
         TopicSubscriber newcons = newsess.createSubscriber(topic);
         
         Message m3 = (Message)newcons.receive(200);
         assertNull(m3);
      }
      finally
      {
         if (conn != null)

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         TopicSession sess = conn.createTopicSession(true, 0);
         TopicPublisher pub = sess.createPublisher(topic);
         TopicSubscriber cons = sess.createSubscriber(topic);
         conn.start();
         
         Message m = sess.createTextMessage("testing123");
         pub.publish(m);
         sess.commit();
         
         TextMessage m2 = (TextMessage)cons.receive(3000);
         assertNotNull(m2);
         assertEquals("testing123", m2.getText());
         
         sess.rollback();
         
         m2 = (TextMessage)cons.receive(3000);
         assertNotNull(m2);
         assertEquals("testing123", m2.getText());
         
         conn.close();
         
         conn = cf.createTopicConnection();
         conn.start();
         
         //test 2
         
         TopicSession newsess = conn.createTopicSession(true, 0);
         TopicPublisher newpub = newsess.createPublisher(topic);
         TopicSubscriber newcons = newsess.createSubscriber(topic);
         
         Message m3 = newsess.createTextMessage("testing456");
         newpub.publish(m3);
         newsess.commit();
         
         TextMessage m4 = (TextMessage)newcons.receive(3000);
         assertNotNull(m4);

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      final int NUM_MESSAGES = 20;


      //Send some messages
      for (int i = 0; i < NUM_MESSAGES; i++)
      {
         Message m = producerSess.createMessage();
         producer.send(m);
      }


      assertRemainingMessages(0);
      
      producerSess.rollback();
      
      //Send some messages
      for (int i = 0; i < NUM_MESSAGES; i++)
      {
         Message m = producerSess.createMessage();
         producer.send(m);
      }
      assertRemainingMessages(0);
      
      producerSess.commit();


      assertRemainingMessages(NUM_MESSAGES);


      log.trace("Sent messages");


      int count = 0;
      while (true)
      {
         Message m = consumer.receive(200);
         if (m == null) break;
         count++;
      }
      
      assertRemainingMessages(NUM_MESSAGES);


      log.trace("Received " + count +  " messages");


      assertEquals(count, NUM_MESSAGES);


      consumerSess.rollback();
      
      assertRemainingMessages(NUM_MESSAGES);


      log.trace("Session rollback called");


      Message m = null;


      int i = 0;
      for(; i < NUM_MESSAGES; i++)
      {
         m = consumer.receive();

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    final int NUM_MESSAGES = 20;


    //Send some messages
    for (int i = 0; i < NUM_MESSAGES; i++)
    {
      Message m = producerSess.createMessage();
      producer.send(m);
    }
      
      assertRemainingMessages(NUM_MESSAGES);


    log.trace("Sent messages");


    int count = 0;
    while (true)
    {
      Message m = consumer.receive(200);
      if (m == null) break;
      count++;
    }
      
      assertRemainingMessages(NUM_MESSAGES);


    log.trace("Received " + count +  " messages");


    assertEquals(count, NUM_MESSAGES);


    consumerSess.recover();
      
      assertRemainingMessages(NUM_MESSAGES);


    log.trace("Session recover called");


      Message m = null;


      int i = 0;
      for(; i < NUM_MESSAGES; i++)
      {
         m = consumer.receive();
         log.trace("Received message " + i);


      }
      
      assertRemainingMessages(NUM_MESSAGES);


      // if I don't receive enough messages, the test will timeout


    log.trace("Received " + i +  " messages after recover");
      
      m.acknowledge();
      
      assertRemainingMessages(0);


      // make sure I don't receive anything else

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    final int NUM_MESSAGES = 20;
    
    for (int i = 0; i < NUM_MESSAGES; i++)
    {
      Message m = producerSess.createMessage();
      producer.send(m);
    }
      
      assertRemainingMessages(NUM_MESSAGES);
    
    log.trace("Sent " + NUM_MESSAGES + " messages");
    
    int count = 0;
    while (true)    
    {
      Message m = consumer.receive(200);
         log.trace("Received message " + m);
      if (m == null)
         {
            break;
         }
         log.trace("Acking session");
         
         assertRemainingMessages(NUM_MESSAGES - count);
         
      m.acknowledge();
         
         assertRemainingMessages(NUM_MESSAGES - (count + 1));
      count++;
    }


      assertRemainingMessages(0);
      
      assertEquals(NUM_MESSAGES, count);
      log.trace("received and acknowledged " + count +  " messages");


      Message m = consumer.receive(200);
    assertNull(m);
      
      log.trace("mesage is " + m);


      log.trace("calling session recover()");

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    final int NUM_MESSAGES = 20;


    //Send some messages
    for (int i = 0; i < NUM_MESSAGES; i++)
    {
      Message m = producerSess.createMessage();
      producer.send(m);
    }
      
      assertRemainingMessages(NUM_MESSAGES);


    log.trace("Sent messages");


    Message m = null;
    int count = 0;
    for (int i = 0; i < NUM_MESSAGES; i++)
    {
      m = consumer.receive(200);
      if (m == null) break;
      count++;
    }
      
      assertRemainingMessages(NUM_MESSAGES);


    assertNotNull(m);


    m.acknowledge();
      
      assertRemainingMessages(0);


    log.trace("Received " + count +  " messages");

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    final int ACKED_MESSAGES = 11;


    //Send some messages
    for (int i = 0; i < NUM_MESSAGES; i++)
    {
      Message m = producerSess.createMessage();
      producer.send(m);
    }
      
      assertRemainingMessages(NUM_MESSAGES);


    log.trace("Sent messages");


    int count = 0;


    Message m = null;
    for (int i = 0; i < NUM_MESSAGES; i++)
    {
      m = consumer.receive(200);
      if (m == null)
         {
            break;
         }
      if (count == ACKED_MESSAGES -1)
         {
            m.acknowledge();
         }
      count++;
    }
      
      assertRemainingMessages(NUM_MESSAGES - ACKED_MESSAGES);

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    final int NUM_MESSAGES = 20;


    //Send some messages
    for (int i = 0; i < NUM_MESSAGES; i++)
    {
      Message m = producerSess.createMessage();
      producer.send(m);
    }
      
      assertRemainingMessages(NUM_MESSAGES);


    log.trace("Sent messages");


    int count = 0;


    Message m = null;
    for (int i = 0; i < NUM_MESSAGES; i++)
    {
         assertRemainingMessages(NUM_MESSAGES - i);
         
      m = consumer.receive(200);

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      conn.start();


      //Send some messages
      for (int i = 0; i < 19; i++)
      {
         Message m = producerSess.createMessage();
         producer.send(m);
      }
      
      assertRemainingMessages(19);


      log.trace("Sent messages");


      Message m = null;
      for (int i = 0; i < 10; i++)
      {
         m = consumer.receive(200);
         
         assertNotNull(m);

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    final int NUM_MESSAGES = 20;


    //Send some messages
    for (int i = 0; i < NUM_MESSAGES; i++)
    {
      Message m = producerSess.createMessage();
      producer.send(m);
    }


      assertRemainingMessages(NUM_MESSAGES);
      
    log.trace("Sent messages");


    int count = 0;


    Message m = null;
    for (int i = 0; i < NUM_MESSAGES; i++)
    {
      m = consumer.receive(200);
      if (m == null) break;
      count++;

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