Example usage for javax.jms Session AUTO_ACKNOWLEDGE

Introduction

In this page you can find the example usage for javax.jms Session AUTO_ACKNOWLEDGE.

Prototype

int AUTO_ACKNOWLEDGE

To view the source code for javax.jms Session AUTO_ACKNOWLEDGE.

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Document

With this acknowledgment mode, the session automatically acknowledges a client's receipt of a message either when the session has successfully returned from a call to receive or when the message listener the session has called to process the message successfully returns.

Usage

From source file:org.apache.falcon.regression.core.supportClasses.JmsMessageConsumer.java

@Override
public void run() {
    try {/*  w ww  .  ja  v  a  2 s.  c om*/
        // Getting JMS connection from the server
        Connection connection = new ActiveMQConnectionFactory(brokerURL).createConnection();
        connection.start();

        // Creating session for sending messages
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Destination destination = session.createTopic(topicName);
        MessageConsumer consumer = session.createConsumer(destination);

        try {
            LOGGER.info("Starting to receive messages.");
            int count = 0;
            for (; count < MAX_MESSAGE_COUNT; ++count) {
                Message message = consumer.receive(); //blocking call
                if (message == null) {
                    LOGGER.info("Received empty message, count = " + count);
                } else {
                    LOGGER.info("Received message, id = " + message.getJMSMessageID());
                    receivedMessages.add((MapMessage) message);
                }
            }
            if (count >= MAX_MESSAGE_COUNT) {
                LOGGER.warn("Not reading more messages, already read " + count + " messages.");
            }
        } finally {
            LOGGER.info("Stopping to receive messages.");
            connection.close();
        }
    } catch (Exception e) {
        LOGGER.info("caught exception: " + ExceptionUtils.getStackTrace(e));
    }
}

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From source file:org.wso2.carbon.esb.scenario.test.common.jms.ActiveMQJMSClient.java

/**
 * Function to retrieve message from specified message queue
 *
 * @param queueName Name of the queue//from ww w .  j  av  a 2  s. c om
 * @param timeout Timeout value (in milliseconds)
 * @return Retrieved message from the queue
 * @throws JMSException if error occurred
 */
public Message consumeMessageFromQueue(String queueName, long timeout) throws JMSException {

    Connection connection = null;
    Session session = null;
    MessageConsumer consumer = null;

    try {
        // Create a ConnectionFactory
        ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(brokerUrl);

        // Create a Connection
        connection = connectionFactory.createConnection();
        connection.start();
        connection.setExceptionListener(this);

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

        // Create the destination (Topic or Queue)
        Destination destination = session.createQueue(queueName);

        // Create a MessageConsumer from the Session to the Topic or Queue
        consumer = session.createConsumer(destination);

        // Wait for a message
        return consumer.receive(timeout);

    } finally {
        if (consumer != null) {
            consumer.close();
        }
        if (session != null) {
            session.close();
        }
        if (connection != null) {
            connection.close();
        }
    }
}

---

From source file:com.icesoft.net.messaging.jms.JMSPublisherConnection.java

public JMSPublisherConnection(final Topic topic, final JMSAdapter jmsAdapter) throws IllegalArgumentException {
    super(topic, jmsAdapter, Session.AUTO_ACKNOWLEDGE);
}

---

From source file:TopicPublisher.java

private void run() throws Exception {
    ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory(url);
    connection = factory.createConnection();
    session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    topic = session.createTopic("topictest.messages");
    control = session.createTopic("topictest.control");

    publisher = session.createProducer(topic);
    publisher.setDeliveryMode(DeliveryMode.NON_PERSISTENT);

    payload = new byte[size];
    for (int i = 0; i < size; i++) {
        payload[i] = (byte) DATA[i % DATA.length];
    }//  ww w  .  j  a  va2  s.  c  o  m

    session.createConsumer(control).setMessageListener(this);
    connection.start();

    long[] times = new long[batch];
    for (int i = 0; i < batch; i++) {
        if (i > 0) {
            Thread.sleep(delay * 1000);
        }
        times[i] = batch(messages);
        System.out.println("Batch " + (i + 1) + " of " + batch + " completed in " + times[i] + " ms.");
    }

    long min = min(times);
    long max = max(times);
    System.out.println("min: " + min + ", max: " + max + " avg: " + avg(times, min, max));

    // request shutdown
    publisher.send(session.createTextMessage("SHUTDOWN"));

    connection.stop();
    connection.close();
}

---

From source file:net.blogracy.services.StoreService.java

public StoreService(Connection connection, PluginInterface plugin) {
    this.plugin = plugin;
    try {//from ww  w  . ja  v a 2s  .c o m
        session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        producer = session.createProducer(null);
        producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
        queue = session.createQueue("store");
        consumer = session.createConsumer(queue);
        consumer.setMessageListener(this);
    } catch (JMSException e) {
        Logger.error("JMS error: creating store service");
    }
}

---

From source file:net.blogracy.services.SeedService.java

public SeedService(Connection connection, PluginInterface plugin) {
    this.plugin = plugin;
    try {/*from w ww .j  a v a 2  s .c o  m*/
        session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        producer = session.createProducer(null);
        producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
        queue = session.createQueue("seed");
        consumer = session.createConsumer(queue);
        consumer.setMessageListener(this);
    } catch (JMSException e) {
        Logger.error("JMS error: creating seed service");
    }
}

---

From source file:org.apache.activemq.JmsConnectionStartStopTest.java

/**
 * Tests if the consumer receives the messages that were sent before the
 * connection was started.//w w w.  j  a v  a2  s.c o  m
 *
 * @throws JMSException
 */
public void testStoppedConsumerHoldsMessagesTillStarted() throws JMSException {
    Session startedSession = startedConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    Session stoppedSession = stoppedConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);

    // Setup the consumers.
    Topic topic = startedSession.createTopic("test");
    MessageConsumer startedConsumer = startedSession.createConsumer(topic);
    MessageConsumer stoppedConsumer = stoppedSession.createConsumer(topic);

    // Send the message.
    MessageProducer producer = startedSession.createProducer(topic);
    TextMessage message = startedSession.createTextMessage("Hello");
    producer.send(message);

    // Test the assertions.
    Message m = startedConsumer.receive(1000);
    assertNotNull(m);

    m = stoppedConsumer.receive(1000);
    assertNull(m);

    stoppedConnection.start();
    m = stoppedConsumer.receive(5000);
    assertNotNull(m);

    startedSession.close();
    stoppedSession.close();
}

---

From source file:org.fusesource.stompjms.JmsTestSupport.java

protected void sendMessages(Connection connection, Destination destination, int count) throws JMSException {
    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    sendMessages(session, destination, count);
    session.close();//  w w w  . j  ava 2s .com
}

---

From source file:org.apache.jmeter.protocol.jms.sampler.Receiver.java

/**
 * Constructor/*from  www  . j a v a2  s .  c om*/
 * @param factory
 * @param receiveQueue Receive Queue
 * @param principal Username
 * @param credentials Password
 * @param useResMsgIdAsCorrelId
 * @param jmsSelector JMS Selector
 * @throws JMSException
 */
private Receiver(ConnectionFactory factory, Destination receiveQueue, String principal, String credentials,
        boolean useResMsgIdAsCorrelId, String jmsSelector) throws JMSException {
    if (null != principal && null != credentials) {
        log.info("creating receiver WITH authorisation credentials. UseResMsgId=" + useResMsgIdAsCorrelId);
        conn = factory.createConnection(principal, credentials);
    } else {
        log.info("creating receiver without authorisation credentials. UseResMsgId=" + useResMsgIdAsCorrelId);
        conn = factory.createConnection();
    }
    session = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);
    if (log.isDebugEnabled()) {
        log.debug("Receiver - ctor. Creating consumer with JMS Selector:" + jmsSelector);
    }
    if (StringUtils.isEmpty(jmsSelector)) {
        consumer = session.createConsumer(receiveQueue);
    } else {
        consumer = session.createConsumer(receiveQueue, jmsSelector);
    }
    this.useResMsgIdAsCorrelId = useResMsgIdAsCorrelId;
    log.debug("Receiver - ctor. Starting connection now");
    conn.start();
    log.info("Receiver - ctor. Connection to messaging system established");
}

---

From source file:org.apache.servicemix.jbi.cluster.requestor.AbstractPollingRequestorPool.java

public void setTransacted(Transacted transacted) {
    this.transacted = transacted;
    switch (transacted) {
    case None:/* w w  w . j  a v  a2  s. c  o  m*/
        setSessionTransacted(false);
        setSessionAcknowledgeMode(Session.AUTO_ACKNOWLEDGE);
        break;
    case ClientAck:
        setSessionTransacted(false);
        setSessionAcknowledgeMode(Session.CLIENT_ACKNOWLEDGE);
        break;
    case Jms:
    case Xa:
        setSessionTransacted(true);
        break;
    }
}

---

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