Java Code Examples for javax.jms.MessageConsumer#setMessageListener()

@Test
public void synchronousReceiveFollowedByMessageListener() throws Exception
{
    Queue queue = createQueue(getTestName());
    Connection connection = getConnection();
    try
    {
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Utils.sendMessages(session, queue, MSG_COUNT);

        connection.start();
        final MessageConsumer consumer = session.createConsumer(queue);
        assertNotNull("Could not receive first message synchronously", consumer.receive(getReceiveTimeout()));

        CountingMessageListener countingMessageListener = new CountingMessageListener(MSG_COUNT - 1);
        consumer.setMessageListener(countingMessageListener);

        countingMessageListener.awaitMessages(getReceiveTimeout());

        assertEquals("Unexpected number of outstanding messages", 0, countingMessageListener.getOutstandingCount());
    }
    finally
    {
        connection.close();
    }
}
 

public void testNoSlowConsumerAdvisory() throws Exception {
   Session s = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
   Queue queue = s.createQueue(getClass().getName());
   MessageConsumer consumer = s.createConsumer(queue);
   consumer.setMessageListener(new MessageListener() {
      @Override
      public void onMessage(Message message) {
      }
   });
   Topic advisoryTopic = AdvisorySupport.getSlowConsumerAdvisoryTopic((ActiveMQDestination) queue);
   s = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
   MessageConsumer advisoryConsumer = s.createConsumer(advisoryTopic);
   // start throwing messages at the consumer
   MessageProducer producer = s.createProducer(queue);
   for (int i = 0; i < MESSAGE_COUNT; i++) {
      BytesMessage m = s.createBytesMessage();
      m.writeBytes(new byte[1024]);
      producer.send(m);
   }
   Message msg = advisoryConsumer.receive(1000);
   assertNull(msg);
}
 

@Test
public void testSendManyMessages() throws Exception {
   conn.connect(defUser, defPass);

   MessageConsumer consumer = session.createConsumer(queue);

   int count = 1000;
   final CountDownLatch latch = new CountDownLatch(count);
   consumer.setMessageListener(new MessageListener() {

      @Override
      public void onMessage(Message arg0) {
         latch.countDown();
      }
   });

   for (int i = 1; i <= count; i++) {
      send(conn, getQueuePrefix() + getQueueName(), null, "Hello World!");
   }

   assertTrue(latch.await(60, TimeUnit.SECONDS));
}
 

@Test
public void testSendManyMessages() throws Exception {
   MessageConsumer consumer = session.createConsumer(queue);

   conn.connect(defUser, defPass);

   int count = 1000;
   final CountDownLatch latch = new CountDownLatch(count);
   consumer.setMessageListener(new MessageListener() {
      @Override
      public void onMessage(Message arg0) {
         latch.countDown();
      }
   });

   for (int i = 1; i <= count; i++) {
      send(conn, getQueuePrefix() + getQueueName(), null, "Hello World");
   }

   assertTrue(latch.await(60, TimeUnit.SECONDS));

   conn.disconnect();
}
 

@Test
public void testAckedMessageAreConsumed() throws Exception {
   connection.start();
   Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
   Queue queue = session.createQueue(queueName);
   MessageProducer producer = session.createProducer(queue);
   producer.send(session.createTextMessage("Hello"));

   // Consume the message...
   MessageConsumer consumer = session.createConsumer(queue);
   consumer.setMessageListener(this);

   latch.await(10, TimeUnit.SECONDS);
   session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
   // Attempt to Consume the message...check if message was acknowledge
   consumer = session.createConsumer(queue);
   Message msg = consumer.receive(1000);
   assertNull(msg);

   session.close();
}
 

private void initializeJmsObjectsForTopic() throws JMSException {
    Session session = connection.createSession(transacted, Session.AUTO_ACKNOWLEDGE);
    Topic topic = (Topic)destination;

    if (destination == null)
        topic = session.createTopic(destinationName);

    MessageConsumer consumer = durableSubscription ? session.createDurableSubscriber(topic, durableSubscriptionName) :
        session.createConsumer(topic);

    IgniteJmsMessageListener messageListener = new IgniteJmsMessageListener(session, true);
    consumer.setMessageListener(messageListener);

    consumers.add(consumer);
    sessions.add(session);
    listeners.add(messageListener);
}
 

@Test
public void connectionStopThenStart() throws Exception
{
    Queue queue = createQueue(getTestName());
    Connection connection = getConnectionBuilder().setPrefetch(0).build();
    try
    {
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Utils.sendMessages(session, queue, MSG_COUNT);

        connection.start();

        final MessageConsumer consumer = session.createConsumer(queue);
        final int messageToReceivedBeforeConnectionStop = MSG_COUNT / 2;
        CountingMessageListener countingMessageListener = new CountingMessageListener(MSG_COUNT, messageToReceivedBeforeConnectionStop);
        consumer.setMessageListener(countingMessageListener);

        countingMessageListener.awaitMessages(getReceiveTimeout());

        connection.stop();
        assertTrue("Too few messages received after Connection#stop()", countingMessageListener.getReceivedCount() >= messageToReceivedBeforeConnectionStop);

        countingMessageListener.resetLatch();
        connection.start();

        countingMessageListener.awaitMessages(getReceiveTimeout());
        assertEquals("Unexpected number of outstanding messages", 0, countingMessageListener.getOutstandingCount());
    }
    finally
    {
        connection.close();
    }
}
 

@Test
public void testMessageListenerClientAck() throws Exception {
   Connection conn = createConnection();
   Session sessSend = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);
   MessageProducer prod = sessSend.createProducer(queue1);

   TextMessage tm1 = sessSend.createTextMessage("a");
   TextMessage tm2 = sessSend.createTextMessage("b");
   TextMessage tm3 = sessSend.createTextMessage("c");
   prod.send(tm1);
   prod.send(tm2);
   prod.send(tm3);
   sessSend.close();

   assertRemainingMessages(3);

   conn.start();
   Session sessReceive = conn.createSession(false, Session.CLIENT_ACKNOWLEDGE);
   MessageConsumer cons = sessReceive.createConsumer(queue1);
   MessageListenerClientAck listener = new MessageListenerClientAck(sessReceive);
   cons.setMessageListener(listener);

   listener.waitForMessages();

   Thread.sleep(500);

   assertRemainingMessages(0);

   conn.close();

   ProxyAssertSupport.assertFalse(listener.failed);
}
 

@Test
@Ignore
public void testMessageListenerWithConsumer() throws Exception {

   final AtomicInteger counter = new AtomicInteger(0);
   final CountDownLatch done = new CountDownLatch(1);

   // Receive a message with the JMS API
   connection.start();
   Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
   ActiveMQDestination destination = createDestination(session, destinationType);
   MessageConsumer consumer = session.createConsumer(destination);
   consumer.setMessageListener(new MessageListener() {
      @Override
      public void onMessage(Message m) {
         counter.incrementAndGet();
         if (counter.get() == 4) {
            done.countDown();
         }
      }
   });

   // Send the messages
   sendMessages(session, destination, 4);

   assertTrue(done.await(1000, TimeUnit.MILLISECONDS));
   Thread.sleep(200);

   // Make sure only 4 messages were delivered.
   assertEquals(4, counter.get());
}
 

@Test
public void testAutoAckMsgListenerQueue() throws Exception {
   Connection conn = null;

   try {
      CountDownLatch latch = new CountDownLatch(1);

      conn = createConnection();
      Session session = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);
      MessageProducer producer = session.createProducer(queue1);
      MessageConsumer consumer = session.createConsumer(queue1);
      AutoAckMsgListener listener = new AutoAckMsgListener(latch, session);
      consumer.setMessageListener(listener);

      // create and send messages
      log.debug("Send and receive two message");
      Message messageSent = session.createMessage();
      messageSent.setBooleanProperty("last", false);
      producer.send(messageSent);
      messageSent.setBooleanProperty("last", true);
      producer.send(messageSent);

      conn.start();

      // wait until message is received
      log.debug("waiting until message has been received by message listener...");
      latch.await(10, TimeUnit.SECONDS);

      // check message listener status
      if (listener.getPassed() == false) {
         throw new Exception("failed");
      }
   } finally {
      if (conn != null) {
         conn.close();
      }
   }
}
 

@Test
public void testSendOverDiskFull() throws Exception {
   AssertionLoggerHandler.startCapture();
   try {
      MessageConsumer consumer = session.createConsumer(queue);

      conn.connect(defUser, defPass);
      int count = 1000;
      final CountDownLatch latch = new CountDownLatch(count);
      consumer.setMessageListener(new MessageListener() {

         @Override
         public void onMessage(Message arg0) {
            latch.countDown();
         }
      });

      ((ActiveMQServerImpl) server).getMonitor()
                                   .setMaxUsage(0)
                                   .tick();

      // Connection should be closed by broker when disk is full and attempt to send
      Exception e = null;
      try {
         for (int i = 1; i <= count; i++) {
            send(conn, getQueuePrefix() + getQueueName(), null, "Hello World!");
         }
      } catch (Exception se) {
         e = se;
      }
      assertNotNull(e);
      // It should encounter the exception on logs
      AssertionLoggerHandler.findText("AMQ119119");
   } finally {
      AssertionLoggerHandler.clear();
      AssertionLoggerHandler.stopCapture();
   }
}
 

@Test
public void testAsyncReceiveWithExpirationChecks() throws Exception {
   ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory(brokerURI);

   final CountDownLatch received = new CountDownLatch(1);

   Connection connection = factory.createConnection();
   Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
   Destination destination = session.createQueue(name.getMethodName());
   MessageConsumer consumer = session.createConsumer(destination);
   consumer.setMessageListener(new MessageListener() {

      @Override
      public void onMessage(Message message) {
         received.countDown();
      }
   });
   MessageProducer producer = session.createProducer(destination);
   producer.setTimeToLive(TimeUnit.SECONDS.toMillis(2));

   producer.send(session.createTextMessage("test"));

   // Allow message to expire in the prefetch buffer
   TimeUnit.SECONDS.sleep(4);
   connection.start();

   assertFalse(received.await(1, TimeUnit.SECONDS));
   connection.close();
}
 

protected void startConsumers(ConnectionFactory factory, Destination dest) throws Exception {
   MessageConsumer consumer;
   for (int i = 0; i < consumerCount; i++) {
      TimedMessageListener list = new TimedMessageListener();
      consumer = createConsumer(factory.createConnection(), dest);
      consumer.setMessageListener(list);
      consumers.put(consumer, list);
   }
}
 

public void testCannotUseMessageListener() throws Exception {
   Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
   MessageConsumer consumer = session.createConsumer(queue);

   MessageListener listener = new SpringConsumer();
   try {
      consumer.setMessageListener(listener);
      fail("Should have thrown JMSException as we cannot use MessageListener with zero prefetch");
   } catch (JMSException e) {
      LOG.info("Received expected exception : " + e);
   }
}
 

public void doTestScheduleRepeated(File existingStore) throws Exception {
   File testDir = new File("target/activemq-data/store/scheduler/versionDB");
   IOHelper.deleteFile(testDir);
   IOHelper.copyFile(existingStore, testDir);

   final int NUMBER = 10;
   ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory("vm://localhost");

   for (int i = 0; i < 3; ++i) {
      JobSchedulerStoreImpl scheduler = new JobSchedulerStoreImpl();
      scheduler.setDirectory(testDir);
      scheduler.setJournalMaxFileLength(1024 * 1024);
      BrokerService broker = createBroker(scheduler);
      broker.start();
      broker.waitUntilStarted();

      final AtomicInteger count = new AtomicInteger();
      Connection connection = cf.createConnection();

      Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
      Queue queue = session.createQueue("test.queue");

      MessageConsumer consumer = session.createConsumer(queue);

      final CountDownLatch latch = new CountDownLatch(NUMBER);
      consumer.setMessageListener(new MessageListener() {
         @Override
         public void onMessage(Message message) {
            LOG.info("Received scheduled message: {}", message);
            latch.countDown();
            count.incrementAndGet();
         }
      });

      connection.start();
      assertEquals(latch.getCount(), NUMBER);
      latch.await(30, TimeUnit.SECONDS);

      connection.close();
      broker.stop();
      broker.waitUntilStopped();

      assertEquals(0, latch.getCount());
   }
}
 

public void testIndexPageUsage() throws Exception {
   Connection con = createConnection();
   Session session = con.createSession(false, Session.AUTO_ACKNOWLEDGE);
   session.createDurableSubscriber(topic, "true", "filter = 'true'", true);
   session.close();

   session = con.createSession(false, Session.AUTO_ACKNOWLEDGE);
   session.createDurableSubscriber(topic, "false", "filter = 'false'", true);
   session.close();

   con.close();

   // send messages
   final Connection sendCon = createConnection("send");
   final Session sendSession = sendCon.createSession(false, Session.AUTO_ACKNOWLEDGE);
   final MessageProducer producer = sendSession.createProducer(null);

   Thread sendThread = new Thread() {
      @Override
      public void run() {
         try {

            for (int i = 0; i < messageCount; i++) {
               boolean filter = i % 2 == 1;
               Message message = sendSession.createMessage();
               message.setStringProperty("filter", filter ? "true" : "false");
               producer.send(topic, message);

               if (i > 0 && i % 1000 == 0) {
                  LOG.info("Sent:" + i);
               }
            }
            sendSession.close();
            sendCon.close();
         } catch (Exception e) {
            exceptions.add(e);
         }
      }
   };
   sendThread.start();

   sendThread.join();

   // settle with sent messages
   TimeUnit.SECONDS.sleep(4);

   // consume messages
   con = createConnection();
   session = con.createSession(false, Session.AUTO_ACKNOWLEDGE);

   MessageConsumer consumerTrue = session.createDurableSubscriber(topic, "true", "filter = 'true'", true);
   Listener listenerT = new Listener();
   consumerTrue.setMessageListener(listenerT);

   waitFor(listenerT, messageCount / 2);

   MessageConsumer consumerFalse = session.createDurableSubscriber(topic, "false", "filter = 'false'", true);
   Listener listenerF = new Listener();
   consumerFalse.setMessageListener(listenerF);

   waitFor(listenerF, messageCount / 2);

   assertEquals(messageCount / 2, listenerT.count);
   assertEquals(messageCount / 2, listenerF.count);

   consumerTrue.close();
   session.unsubscribe("true");

   consumerFalse.close();
   session.unsubscribe("false");

   session.close();
   con.close();

   PersistenceAdapter persistenceAdapter = broker.getPersistenceAdapter();
   if (persistenceAdapter instanceof KahaDBPersistenceAdapter) {
      final KahaDBStore store = ((KahaDBPersistenceAdapter) persistenceAdapter).getStore();
      LOG.info("Store page count: " + store.getPageFile().getPageCount());
      LOG.info("Store free page count: " + store.getPageFile().getFreePageCount());
      LOG.info("Store page in-use: " + (store.getPageFile().getPageCount() - store.getPageFile().getFreePageCount()));

      assertTrue("no leak of pages, always use just 10", Wait.waitFor(new Wait.Condition() {
         @Override
         public boolean isSatisified() throws Exception {
            return 10 == store.getPageFile().getPageCount() - store.getPageFile().getFreePageCount();
         }
      }, TimeUnit.SECONDS.toMillis(10)));
   }
}
 

@Test
public void testSortedQueueWithAscendingSortedKeys() throws Exception
{
    final String queueName = getTestName();
    final Queue queue = createSortedQueue(queueName, TEST_SORT_KEY);

    final Connection consumerConnection = getConnectionBuilder().setPrefetch(0).build();
    try
    {
        final Session consumerSession = consumerConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        final MessageConsumer consumer = consumerSession.createConsumer(queue);
        final CountDownLatch receiveLatch = new CountDownLatch(NUMBER_OF_MESSAGES);
        consumer.setMessageListener(new CountingMessageListener(receiveLatch, consumerSession));
        consumerConnection.start();

        final Connection producerConnection = getConnection();
        try
        {
            final Session producerSession = producerConnection.createSession(true, Session.SESSION_TRANSACTED);
            final MessageProducer producer = producerSession.createProducer(queue);

            for (int i = 0; i < NUMBER_OF_MESSAGES; i++)
            {
                final Message message = producerSession.createMessage();
                message.setStringProperty(TEST_SORT_KEY, AscendingSortedKeys.getNextKey());
                producer.send(message);
                producerSession.commit();
            }
        }
        finally
        {
            producerConnection.close();
        }
        assertTrue("Messages were not received during expected time",
                   receiveLatch.await(getReceiveTimeout() * NUMBER_OF_MESSAGES, TimeUnit.MILLISECONDS));
    }
    finally
    {
        consumerConnection.close();
    }
}
 

public void run(String... args) throws Exception {

        String[] split = args[1].split("@");

        String host = args[0];
        String vpnName = split[1];
        String username = split[0];
        String password = args[2];

        System.out.printf("BasicReplier is connecting to Solace messaging at %s...%n", host);

        // Programmatically create the connection factory using default settings
        SolConnectionFactory connectionFactory = SolJmsUtility.createConnectionFactory();
        connectionFactory.setHost(host);
        connectionFactory.setVPN(vpnName);
        connectionFactory.setUsername(username);
        connectionFactory.setPassword(password);

        // Create connection to Solace messaging
        Connection connection = connectionFactory.createConnection();

        // Create a non-transacted, auto ACK session.
        final Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);

        System.out.printf("Connected to the Solace Message VPN '%s' with client username '%s'.%n", vpnName,
                username);

        // Create the request topic programmatically
        Topic requestTopic = session.createTopic(REQUEST_TOPIC_NAME);

        // Create the message consumer for the request topic
        MessageConsumer requestConsumer = session.createConsumer(requestTopic);

        // Create the message producer for the reply queue
        final MessageProducer replyProducer = session.createProducer(null);

        // Use the anonymous inner class for receiving request messages asynchronously
        requestConsumer.setMessageListener(new MessageListener() {
            @Override
            public void onMessage(Message request) {
                try {
                    Destination replyDestination = request.getJMSReplyTo();
                    if (replyDestination != null) {
                        System.out.println("Received request, responding...");

                        TextMessage reply = session.createTextMessage();
                        String text = "Sample response";
                        reply.setText(text);

                        // Copy the correlation ID from the request to the reply
                        reply.setJMSCorrelationID(request.getJMSCorrelationID());

                        // For direct messaging only, this flag is needed to interoperate with
                        // Solace Java, C, and C# request reply APIs.
                        reply.setBooleanProperty(SupportedProperty.SOLACE_JMS_PROP_IS_REPLY_MESSAGE, Boolean.TRUE);

                        // Sent the reply
                        replyProducer.send(replyDestination, reply, DeliveryMode.NON_PERSISTENT,
                                Message.DEFAULT_PRIORITY,
                                Message.DEFAULT_TIME_TO_LIVE);
                        System.out.println("Responded successfully. Exiting...");

                        latch.countDown(); // unblock the main thread
                    } else {
                        System.out.println("Received message without reply-to field.");
                    }
                } catch (JMSException ex) {
                    System.out.println("Error processing incoming message.");
                    ex.printStackTrace();
                }
            }
        });

        // Start receiving messages
        connection.start();
        System.out.println("Awaiting request...");
        // the main thread blocks at the next statement until a message received
        latch.await();

        connection.stop();
        // Close everything in the order reversed from the opening order
        // NOTE: as the interfaces below extend AutoCloseable,
        // with them it's possible to use the "try-with-resources" Java statement
        // see details at https://docs.oracle.com/javase/tutorial/essential/exceptions/tryResourceClose.html
        replyProducer.close();
        requestConsumer.close();
        session.close();
        connection.close();
    }
 

@Override
public String call() throws JMSException, InterruptedException {
    String result = null;
    Connection connection = connectionFactory.createConnection();
    connection.start();

    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);

    MessageConsumer consumer = session.createConsumer(createDestination(session));

    SynchronousQueue<Message> sq = new SynchronousQueue<>();

    consumer.setMessageListener(new MessageListener() {

        @Override
        public void onMessage(Message arg0) {
            sq.offer(arg0);
        }
    });

    if (latch != null) {
        latch.countDown();
    }

    Message message = sq.poll(5000, TimeUnit.MILLISECONDS);

    if (message instanceof TextMessage) {
        TextMessage mesg = (TextMessage) message;

        if (mesg.getJMSReplyTo() != null) {
            MessageProducer producer = session.createProducer(mesg.getJMSReplyTo());

            TextMessage response = session.createTextMessage(mesg.getText() + SUFFIX);

            producer.send(response);

            producer.close();
        }

        result = mesg.getText();
    }

    consumer.close();
    session.close();
    connection.close();

    return result;
}
 

public void run(String... args) throws Exception {
    String[] split = args[1].split("@");

    String host = args[0];
    String vpnName = split[1];
    String username = split[0];
    String password = args[2];

    System.out.printf("TopicSubscriber is connecting to Solace messaging at %s...%n", host);

    // Programmatically create the connection factory using default settings
    SolConnectionFactory connectionFactory = SolJmsUtility.createConnectionFactory();
    connectionFactory.setHost(host);
    connectionFactory.setVPN(vpnName);
    connectionFactory.setUsername(username);
    connectionFactory.setPassword(password);
    Connection connection = connectionFactory.createConnection();

    // Create a non-transacted, Auto ACK session.
    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);

    System.out.printf("Connected to Solace Message VPN '%s' with client username '%s'.%n", vpnName,
            username);

    // Create the subscription topic programmatically
    Topic topic = session.createTopic(TOPIC_NAME);

    // Create the message consumer for the subscription topic
    MessageConsumer messageConsumer = session.createConsumer(topic);

    // Use the anonymous inner class for receiving messages asynchronously
    messageConsumer.setMessageListener(new MessageListener() {
        @Override
        public void onMessage(Message message) {
            try {
                if (message instanceof TextMessage) {
                    System.out.printf("TextMessage received: '%s'%n", ((TextMessage) message).getText());
                } else {
                    System.out.println("Message received.");
                }
                System.out.printf("Message Content:%n%s%n", SolJmsUtility.dumpMessage(message));
                latch.countDown(); // unblock the main thread
            } catch (JMSException ex) {
                System.out.println("Error processing incoming message.");
                ex.printStackTrace();
            }
        }
    });

    // Start receiving messages
    connection.start();
    System.out.println("Awaiting message...");
    // the main thread blocks at the next statement until a message received
    latch.await();

    connection.stop();
    // Close everything in the order reversed from the opening order
    // NOTE: as the interfaces below extend AutoCloseable,
    // with them it's possible to use the "try-with-resources" Java statement
    // see details at https://docs.oracle.com/javase/tutorial/essential/exceptions/tryResourceClose.html
    messageConsumer.close();
    session.close();
    connection.close();
}