Example usage for javax.jms MessageConsumer receive

Introduction

In this page you can find the example usage for javax.jms MessageConsumer receive.

Prototype

Message receive(long timeout) throws JMSException;

Source Link

Document

Receives the next message that arrives within the specified timeout interval.

Usage

From source file:org.apache.activemq.demo.SimpleConsumer.java

/**
 * @param args the queue used by the example
 *//* w w  w.  java 2s .  co  m*/
public static void main(String[] args) {
    String destinationName = null;
    Context jndiContext = null;
    ConnectionFactory connectionFactory = null;
    Connection connection = null;
    Session session = null;
    Destination destination = null;
    MessageConsumer consumer = null;

    /*
     * Read destination name from command line and display it.
     */
    if (args.length != 1) {
        LOG.info("Usage: java SimpleConsumer <destination-name>");
        System.exit(1);
    }
    destinationName = args[0];
    LOG.info("Destination name is " + destinationName);

    /*
     * Create a JNDI API InitialContext object
     */
    try {
        jndiContext = new InitialContext();
    } catch (NamingException e) {
        LOG.info("Could not create JNDI API " + "context: " + e.toString());
        System.exit(1);
    }

    /*
     * Look up connection factory and destination.
     */
    try {
        connectionFactory = (ConnectionFactory) jndiContext.lookup("ConnectionFactory");
        destination = (Destination) jndiContext.lookup(destinationName);
    } catch (NamingException e) {
        LOG.info("JNDI API lookup failed: " + e.toString());
        System.exit(1);
    }

    /*
     * Create connection. Create session from connection; false means
     * session is not transacted. Create receiver, then start message
     * delivery. Receive all text messages from destination until a non-text
     * message is received indicating end of message stream. Close
     * connection.
     */
    try {
        connection = connectionFactory.createConnection();
        session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        consumer = session.createConsumer(destination);
        connection.start();
        while (true) {
            Message m = consumer.receive(1);
            if (m != null) {
                if (m instanceof TextMessage) {
                    TextMessage message = (TextMessage) m;
                    LOG.info("Reading message: " + message.getText());
                } else {
                    break;
                }
            }
        }
    } catch (JMSException e) {
        LOG.info("Exception occurred: " + e);
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
            }
        }
    }
}

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From source file:io.datalayer.activemq.consumer.SimpleConsumer.java

/**
 * @param args the queue used by the example
 *///from ww w  .j a  v a  2  s  .c o  m
public static void main(String... args) {
    String destinationName = null;
    Context jndiContext = null;
    ConnectionFactory connectionFactory = null;
    Connection connection = null;
    Session session = null;
    Destination destination = null;
    MessageConsumer consumer = null;

    /*
     * Read destination name from command line and display it.
     */
    if (args.length != 1) {
        LOG.info("Usage: java SimpleConsumer <destination-name>");
        System.exit(1);
    }
    destinationName = args[0];
    LOG.info("Destination name is " + destinationName);

    /*
     * Create a JNDI API InitialContext object
     */
    try {
        jndiContext = new InitialContext();
    } catch (NamingException e) {
        LOG.info("Could not create JNDI API " + "context: " + e.toString());
        System.exit(1);
    }

    /*
     * Look up connection factory and destination.
     */
    try {
        connectionFactory = (ConnectionFactory) jndiContext.lookup("ConnectionFactory");
        destination = (Destination) jndiContext.lookup(destinationName);
    } catch (NamingException e) {
        LOG.info("JNDI API lookup failed: " + e.toString());
        System.exit(1);
    }

    /*
     * Create connection. Create session from connection; false means
     * session is not transacted. Create receiver, then start message
     * delivery. Receive all text messages from destination until a non-text
     * message is received indicating end of message stream. Close
     * connection.
     */
    try {
        connection = connectionFactory.createConnection();
        session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        consumer = session.createConsumer(destination);
        connection.start();
        while (true) {
            Message m = consumer.receive(1);
            if (m != null) {
                if (m instanceof TextMessage) {
                    TextMessage message = (TextMessage) m;
                    LOG.info("Reading message: " + message.getText());
                } else {
                    break;
                }
            }
        }
    } catch (JMSException e) {
        LOG.info("Exception occurred: " + e);
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
            }
        }
    }
}

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From source file:sk.seges.test.jms.activemq.SimpleActiveMQQueueReceiveFailTest.java

@Test
public void testReceive() throws Exception {
    Connection connection = activeMQConnectionFactory.createConnection();
    connection.start();/* w  w w.j a v  a  2s .  co  m*/
    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    MessageConsumer consumer = session.createConsumer(activeMQTestQueueA);

    Message rawMessage = consumer.receive(1000);
    assertNull(rawMessage);
    connection.close();
}

---

From source file:sk.seges.test.jms.activemq.SimpleActiveMQQueueReceiveTest.java

@Test
public void testReceive() throws Exception {
    Connection connection = activeMQConnectionFactory.createConnection();
    connection.start();// w  ww.  ja va  2s .  c  o  m
    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    MessageConsumer consumer = session.createConsumer(activeMQTestQueueA);

    Message rawMessage = consumer.receive(1000);
    assertTrue(rawMessage instanceof TextMessage);

    TextMessage message = (TextMessage) rawMessage;
    assertEquals("test text", message.getText());
    connection.close();
}

---

From source file:com.nesscomputing.jms.activemq.ServiceDiscoveryTransportFactoryTest.java

private void consumeTestMessage() throws Exception {
    final Connection connection = factory.createConnection();
    connection.start();//from www. ja  v a 2s.c o  m
    try {
        final Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        final MessageConsumer consumer = session.createConsumer(session.createQueue(QNAME));
        final Message message = consumer.receive(1000);

        LOG.info(ObjectUtils.toString(message, "<no message>"));

        Assert.assertEquals(uniqueId, ((TextMessage) message).getText());
    } finally {
        connection.stop();
        connection.close();
    }
}

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From source file:ubic.gemma.job.grid.util.JMSBrokerMonitorImpl.java

private MapMessage sendTaskSubmissionQueueDiagnosticMessage() throws JMSException {
    MapMessage reply = jmsTemplate.execute(new SessionCallback<MapMessage>() {
        @Override//from w  ww .j  ava 2s .co m
        public MapMessage doInJms(Session session) throws JMSException {
            Queue replyTo = session.createTemporaryQueue();
            Message message = session.createMessage();
            message.setJMSReplyTo(replyTo);
            Queue queryQueue = session.createQueue("ActiveMQ.Statistics.Destination.tasks.submit");
            MessageProducer producer = session.createProducer(queryQueue);
            MessageConsumer consumer = session.createConsumer(replyTo);
            producer.send(message);
            return (MapMessage) consumer.receive(5000);
        }
    }, true);
    return reply;
}

---

From source file:org.apache.activemq.camel.JmsJdbcXARollbackTest.java

private boolean consumedFrom(String qName) throws Exception {
    ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory("vm://testXA");
    factory.setWatchTopicAdvisories(false);
    Connection connection = factory.createConnection();
    connection.start();/*  w  ww .j  av  a 2  s  .com*/
    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    MessageConsumer consumer = session.createConsumer(new ActiveMQQueue(qName));
    Message message = consumer.receive(500);
    LOG.info("Got from queue:{} {}", qName, message);
    connection.close();
    return message != null;
}

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From source file:org.wso2.carbon.sample.consumer.TopicConsumer.java

public void run() {
    // create topic connection
    TopicConnection topicConnection = null;
    try {/*from ww w.  j a v a  2  s  .  c  o  m*/
        topicConnection = topicConnectionFactory.createTopicConnection();
        topicConnection.start();
    } catch (JMSException e) {
        log.error("Can not create topic connection." + e.getMessage(), e);
        return;
    }
    Session session = null;
    try {
        session = topicConnection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
        Destination destination = session.createTopic(topicName);
        MessageConsumer consumer = session.createConsumer(destination);
        log.info("Listening for messages");
        while (active) {
            Message message = consumer.receive(1000);
            if (message != null) {
                if (message instanceof MapMessage) {
                    MapMessage mapMessage = (MapMessage) message;
                    Map<String, Object> map = new HashMap<String, Object>();
                    Enumeration enumeration = mapMessage.getMapNames();
                    while (enumeration.hasMoreElements()) {
                        String key = (String) enumeration.nextElement();
                        map.put(key, mapMessage.getObject(key));
                    }
                    log.info("Received Map Message : " + map);
                } else if (message instanceof TextMessage) {
                    log.info("Received Text Message : " + ((TextMessage) message).getText());
                } else {
                    log.info("Received message : " + message.toString());
                }
            }
        }
        log.info("Finished listening for messages.");
        session.close();
        topicConnection.stop();
        topicConnection.close();
    } catch (JMSException e) {
        log.error("Can not subscribe." + e.getMessage(), e);
    }
}

---

From source file:org.wso2.carbon.sample.consumer.QueueConsumer.java

public void run() {
    // create queue connection
    QueueConnection queueConnection = null;
    try {/*  w w w  . ja v  a 2  s .  c  o  m*/
        queueConnection = queueConnectionFactory.createQueueConnection();
        queueConnection.start();
    } catch (JMSException e) {
        log.error("Can not create queue connection." + e.getMessage(), e);
        return;
    }
    Session session = null;
    try {
        session = queueConnection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
        Destination destination = session.createQueue(queueName);
        MessageConsumer consumer = session.createConsumer(destination);
        log.info("Listening for messages");
        while (active) {
            Message message = consumer.receive(1000);
            if (message != null) {
                if (message instanceof MapMessage) {
                    MapMessage mapMessage = (MapMessage) message;
                    Map<String, Object> map = new HashMap<String, Object>();
                    Enumeration enumeration = mapMessage.getMapNames();
                    while (enumeration.hasMoreElements()) {
                        String key = (String) enumeration.nextElement();
                        map.put(key, mapMessage.getObject(key));
                    }
                    log.info("Received Map Message : " + map);
                } else if (message instanceof TextMessage) {
                    log.info("Received Text Message : " + ((TextMessage) message).getText());
                } else {
                    log.info("Received message : " + message.toString());
                }
            }
        }
        log.info("Finished listening for messages.");
        session.close();
        queueConnection.stop();
        queueConnection.close();
    } catch (JMSException e) {
        log.error("Can not subscribe." + e.getMessage(), e);
    }
}

---

From source file:org.wso2.extension.siddhi.io.jms.sink.util.TopicConsumer.java

public void run() {
    // create topic connection
    TopicConnection topicConnection = null;
    try {//from   w w w.  j  a  va  2s  .  co m
        topicConnection = topicConnectionFactory.createTopicConnection();
        topicConnection.start();
    } catch (JMSException e) {
        log.error("Can not create topic connection." + e.getMessage(), e);
        return;
    }
    Session session = null;
    try {
        session = topicConnection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
        Destination destination = session.createTopic(topicName);
        MessageConsumer consumer = session.createConsumer(destination);
        log.info("Listening for messages");
        while (active) {
            Message message = consumer.receive(1000);
            if (message != null) {
                resultContainer.eventReceived(message);
                if (message instanceof MapMessage) {
                    MapMessage mapMessage = (MapMessage) message;
                    Map<String, Object> map = new HashMap<String, Object>();
                    Enumeration enumeration = mapMessage.getMapNames();
                    while (enumeration.hasMoreElements()) {
                        String key = (String) enumeration.nextElement();
                        map.put(key, mapMessage.getObject(key));
                    }
                    log.info("Received Map Message : " + map);
                } else if (message instanceof TextMessage) {
                    log.info("Received Text Message : " + ((TextMessage) message).getText());
                } else {
                    log.info("Received message : " + message.toString());
                }
            }
        }
        log.info("Finished listening for messages.");
        session.close();
        topicConnection.stop();
        topicConnection.close();
    } catch (JMSException e) {
        log.error("Can not subscribe." + e.getMessage(), e);
    }
}

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