Example usage for javax.jms Connection createSession

Introduction

In this page you can find the example usage for javax.jms Connection createSession.

Prototype

Session createSession(boolean transacted, int acknowledgeMode) throws JMSException;

Source Link

Document

Creates a Session object, specifying transacted and acknowledgeMode .

Usage

From source file:com.mothsoft.alexis.engine.retrieval.DocumentRetrievalTaskImpl.java

private String requestParse(final Long documentId, final String content) {
    Connection connection = null;
    Session session = null;//from   w  w  w .  j a  v  a 2  s  .c  o  m
    MessageProducer producer = null;

    // set up JMS connection, session, consumer, producer
    try {
        connection = this.connectionFactory.createConnection();
        session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        producer = session.createProducer(this.requestQueue);

        logger.info("Sending parse request, document ID: " + documentId);
        final TextMessage textMessage = session.createTextMessage(content);
        textMessage.setJMSReplyTo(this.responseQueue);
        textMessage.setLongProperty(DOCUMENT_ID, documentId);

        producer.send(textMessage);
    } catch (JMSException e) {
        throw new RuntimeException(e);
    } finally {
        try {
            if (producer != null) {
                producer.close();
            }
            if (session != null) {
                session.close();
            }
            if (connection != null) {
                connection.close();
            }
        } catch (JMSException e) {
            throw new RuntimeException(e);
        }
    }

    return content;
}

---

From source file:org.apache.activemq.usecases.DurableSubscriberWithNetworkDisconnectTest.java

public void testSendOnAReceiveOnBWithTransportDisconnect() throws Exception {
    bridgeBrokers(SPOKE, HUB);/* www  .j a  v a  2 s  . c  o  m*/

    startAllBrokers();

    // Setup connection
    URI hubURI = brokers.get(HUB).broker.getVmConnectorURI();
    URI spokeURI = brokers.get(SPOKE).broker.getVmConnectorURI();
    ActiveMQConnectionFactory facHub = new ActiveMQConnectionFactory(hubURI);
    ActiveMQConnectionFactory facSpoke = new ActiveMQConnectionFactory(spokeURI);
    Connection conHub = facHub.createConnection();
    Connection conSpoke = facSpoke.createConnection();
    conHub.setClientID("clientHUB");
    conSpoke.setClientID("clientSPOKE");
    conHub.start();
    conSpoke.start();
    Session sesHub = conHub.createSession(false, Session.AUTO_ACKNOWLEDGE);
    Session sesSpoke = conSpoke.createSession(false, Session.AUTO_ACKNOWLEDGE);

    ActiveMQTopic topic = new ActiveMQTopic("TEST.FOO");
    String consumerName = "consumerName";

    // Setup consumers
    MessageConsumer remoteConsumer = sesSpoke.createDurableSubscriber(topic, consumerName);
    remoteConsumer.setMessageListener(new MessageListener() {
        public void onMessage(Message msg) {
            try {
                TextMessage textMsg = (TextMessage) msg;
                receivedMsgs++;
                LOG.info("Received messages (" + receivedMsgs + "): " + textMsg.getText());
            } catch (JMSException e) {
                e.printStackTrace();
            }
        }
    });

    // allow subscription information to flow back to Spoke
    sleep(1000);

    // Setup producer
    MessageProducer localProducer = sesHub.createProducer(topic);
    localProducer.setDeliveryMode(DeliveryMode.PERSISTENT);

    // Send messages
    for (int i = 0; i < MESSAGE_COUNT; i++) {
        sleep(50);
        if (i == 50 || i == 150) {
            if (simulateStalledNetwork) {
                socketProxy.pause();
            } else {
                socketProxy.close();
            }
            networkDownTimeStart = System.currentTimeMillis();
        } else if (networkDownTimeStart > 0) {
            // restart after NETWORK_DOWN_TIME seconds
            sleep(NETWORK_DOWN_TIME);
            networkDownTimeStart = 0;
            if (simulateStalledNetwork) {
                socketProxy.goOn();
            } else {
                socketProxy.reopen();
            }
        } else {
            // slow message production to allow bridge to recover and limit message duplication
            sleep(500);
        }
        Message test = sesHub.createTextMessage("test-" + i);
        localProducer.send(test);
    }

    LOG.info("waiting for messages to flow");
    Wait.waitFor(new Wait.Condition() {
        @Override
        public boolean isSatisified() throws Exception {
            return receivedMsgs >= MESSAGE_COUNT;
        }
    });

    assertTrue("At least message " + MESSAGE_COUNT + " must be received, count=" + receivedMsgs,
            MESSAGE_COUNT <= receivedMsgs);
    brokers.get(HUB).broker.deleteAllMessages();
    brokers.get(SPOKE).broker.deleteAllMessages();
    conHub.close();
    conSpoke.close();
}

---

From source file:org.jbpm.ejb.CommandListenerBean.java

private void sendResult(Serializable result, Destination destination, String correlationId)
        throws JMSException {
    if (log.isDebugEnabled())
        log.debug("sending " + result + " to " + destination);

    Connection jmsConnection = jmsConnectionFactory.createConnection();
    try {/*from  w  w w  .  jav  a 2 s.c  o m*/
        /*
         * if the connection supports xa, the session will be transacted, else the session will
         * auto acknowledge; in either case no explicit transaction control must be performed -
         * see ejb 2.1 - 17.3.5
         */
        Session jmsSession = jmsConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Message resultMessage = jmsSession.createObjectMessage(result);
        resultMessage.setJMSCorrelationID(correlationId);
        MessageProducer producer = jmsSession.createProducer(destination);
        producer.send(resultMessage);
    } finally {
        // there is no need to close the sessions and producers of a closed connection
        // http://download.oracle.com/javaee/1.4/api/javax/jms/Connection.html#close()
        try {
            jmsConnection.close();
        } catch (JMSException e) {
            log.warn("failed to close jms connection", e);
        }
    }
}

---

From source file:org.apache.activemq.usecases.ConcurrentProducerDurableConsumerTest.java

protected TopicSubscriber createDurableSubscriber(Connection conn, Destination dest, String name)
        throws Exception {
    conn.setClientID(name);// w w  w  . j  a  va2  s  .c o m
    connections.add(conn);
    conn.start();

    Session sess = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);
    final TopicSubscriber consumer = sess.createDurableSubscriber((javax.jms.Topic) dest, name);

    return consumer;
}

---

From source file:ProducerTool.java

public void run() {
    Connection connection = null;
    try {//from w  w  w . j av a  2s  .c  om
        // Create the connection.
        ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(user, password, url);
        connection = connectionFactory.createConnection();
        connection.start();

        // Create the session
        Session session = connection.createSession(transacted, Session.AUTO_ACKNOWLEDGE);
        if (topic) {
            destination = session.createTopic(subject);
        } else {
            destination = session.createQueue(subject);
        }

        // Create the producer.
        MessageProducer producer = session.createProducer(destination);
        if (persistent) {
            producer.setDeliveryMode(DeliveryMode.PERSISTENT);
        } else {
            producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
        }
        if (timeToLive != 0) {
            producer.setTimeToLive(timeToLive);
        }

        // Start sending messages
        sendLoop(session, producer);

        System.out.println("[" + this.getName() + "] Done.");

        synchronized (lockResults) {
            ActiveMQConnection c = (ActiveMQConnection) connection;
            System.out.println("[" + this.getName() + "] Results:\n");
            c.getConnectionStats().dump(new IndentPrinter());
        }

    } catch (Exception e) {
        System.out.println("[" + this.getName() + "] Caught: " + e);
        e.printStackTrace();
    } finally {
        try {
            connection.close();
        } catch (Throwable ignore) {
        }
    }
}

---

From source file:org.apache.activemq.leveldb.test.ReplicatedLevelDBBrokerTest.java

private void sendMessage(BrokerService brokerService, String body) throws Exception {
    TransportConnector connector = brokerService.getTransportConnectors().get(0);
    ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory(connector.getConnectUri());
    Connection connection = factory.createConnection();
    try {//from   w w  w  .j a  v a2s.  co m
        connection.start();
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        MessageProducer producer = session.createProducer(session.createQueue("FOO"));
        producer.send(session.createTextMessage(body));
    } finally {
        connection.close();
    }
}

---

From source file:org.apache.activemq.leveldb.test.ReplicatedLevelDBBrokerTest.java

private ArrayList<String> browseMessagesViaJMS(BrokerService brokerService) throws Exception {
    ArrayList<String> rc = new ArrayList<String>();
    ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory(
            "tcp://localhost:" + connectPort(brokerService));
    Connection connection = factory.createConnection();
    try {/*from   w  w w . j a v  a 2  s . c o  m*/
        connection.start();
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        QueueBrowser browser = session.createBrowser(session.createQueue("FOO"));
        Enumeration enumeration = browser.getEnumeration();
        while (enumeration.hasMoreElements()) {
            TextMessage textMessage = (TextMessage) enumeration.nextElement();
            rc.add(textMessage.getText());
        }
    } finally {
        connection.close();
    }
    return rc;
}

---

From source file:org.sofun.core.messaging.SofunMessagingServiceImpl.java

@Override
public void sendMessage(Serializable message, String destination) {

    Connection connection = null;
    Session session = null;/*from w w  w  .j  av a2s.  co  m*/
    MessageProducer sender = null;
    Queue q = getQueueFor(destination);
    if (q == null) {
        log.error("Cannot find associated queue for destination=" + destination);
    }
    try {
        connection = connFactory.createConnection(SofunMessagingCredentials.USERNAME,
                SofunMessagingCredentials.PASSWORD);
        session = connection.createSession(true, 0);
        sender = session.createProducer(q);
        ObjectMessage msg = session.createObjectMessage(message);
        sender.send(msg);
    } catch (Exception e) {
        log.error(e.getMessage());
    } finally {
        try {
            if (sender != null) {
                sender.close();
            }
            if (session != null) {
                session.close();
            }
            if (connection != null) {
                connection.close();
            }
        } catch (JMSException e) {
            log.error(e.getMessage());
        }

    }

}

---

From source file:org.eclipse.smila.connectivity.queue.worker.internal.task.impl.Send.java

/**
 * {@inheritDoc}/* w  w  w.ja v a 2  s.  c om*/
 * 
 */
@Override
public String[] executeInternal(final TaskExecutionEnv env, final SendType config,
        final Map<String, Properties> idPropertyMap)
        throws TaskExecutionException, BlackboardAccessException, RecordFilterNotFoundException {
    Connection connection = null;
    Session session = null;
    try {
        // get cached connection, if do not cache connections -> socket error when many records pushed
        connection = env.getServices().getBrokerConnections().getConnection(config, true);
        connection.start();
        session = connection.createSession(true, Session.AUTO_ACKNOWLEDGE);
        final Destination destination = session.createQueue(config.getQueue());
        final MessageProducer producer = session.createProducer(destination);
        if (config.isPersistentDelivery()) {
            producer.setDeliveryMode(DeliveryMode.PERSISTENT);
        } else {
            producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
        }

        final Iterator<Entry<String, Properties>> entries = idPropertyMap.entrySet().iterator();
        while (entries.hasNext()) {
            final Entry<String, Properties> entry = entries.next();
            // get message record, optionally a filtered copy.
            final Record record = createMessageRecord(entry.getKey(), config, env);
            // prepare queue message. messages are actually sent on session.commit() below.
            producer.send(createMessage(config, record, entry.getValue(), session));
        }

        // we must commit here so that the message consumer find the correct record version in storages.
        env.getBlackboard().commit();
        env.setCommitRequired(false);
        // finally send the messages.
        session.commit();

        return idPropertyMap.keySet().toArray(new String[idPropertyMap.size()]);
    } catch (final Throwable e) {
        _log.error(msg("Error"), e);
        rollbackQuietly(session);
        throw new TaskExecutionException(e);
    } finally {
        closeQuietly(session);
        closeQuietly(connection);
    }
}

---

From source file:org.apache.activemq.leveldb.test.ReplicatedLevelDBBrokerTest.java

@Test
@Ignore//w w w  . ja  v  a 2s.c  om
public void testReplicationQuorumLoss() throws Throwable {

    System.out.println("======================================");
    System.out.println(" Start 2 ActiveMQ nodes.");
    System.out.println("======================================");
    startBrokerAsync(createBrokerNode("node-1", port));
    startBrokerAsync(createBrokerNode("node-2", port));
    BrokerService master = waitForNextMaster();
    System.out.println("======================================");
    System.out.println(" Start the producer and consumer");
    System.out.println("======================================");

    final AtomicBoolean stopClients = new AtomicBoolean(false);
    final ArrayBlockingQueue<String> errors = new ArrayBlockingQueue<String>(100);
    final AtomicLong receivedCounter = new AtomicLong();
    final AtomicLong sentCounter = new AtomicLong();
    Thread producer = startFailoverClient("producer", new Client() {
        @Override
        public void execute(Connection connection) throws Exception {
            Session session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);
            MessageProducer producer = session.createProducer(session.createQueue("test"));
            long actual = 0;
            while (!stopClients.get()) {
                TextMessage msg = session.createTextMessage("Hello World");
                msg.setLongProperty("id", actual++);
                producer.send(msg);
                sentCounter.incrementAndGet();
            }
        }
    });

    Thread consumer = startFailoverClient("consumer", new Client() {
        @Override
        public void execute(Connection connection) throws Exception {
            connection.start();
            Session session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);
            MessageConsumer consumer = session.createConsumer(session.createQueue("test"));
            long expected = 0;
            while (!stopClients.get()) {
                Message msg = consumer.receive(200);
                if (msg != null) {
                    long actual = msg.getLongProperty("id");
                    if (actual != expected) {
                        errors.offer("Received got unexpected msg id: " + actual + ", expected: " + expected);
                    }
                    msg.acknowledge();
                    expected = actual + 1;
                    receivedCounter.incrementAndGet();
                }
            }
        }
    });

    try {
        assertCounterMakesProgress(sentCounter, 10, TimeUnit.SECONDS);
        assertCounterMakesProgress(receivedCounter, 5, TimeUnit.SECONDS);
        assertNull(errors.poll());

        System.out.println("======================================");
        System.out.println(" Master should stop once the quorum is lost.");
        System.out.println("======================================");
        ArrayList<BrokerService> stopped = stopSlaves();// stopping the slaves should kill the quorum.
        assertStopsWithin(master, 10, TimeUnit.SECONDS);
        assertNull(errors.poll()); // clients should not see an error since they are failover clients.
        stopped.add(master);

        System.out.println("======================================");
        System.out.println(" Restart the slave. Clients should make progress again..");
        System.out.println("======================================");
        startBrokersAsync(createBrokerNodes(stopped));
        assertCounterMakesProgress(sentCounter, 10, TimeUnit.SECONDS);
        assertCounterMakesProgress(receivedCounter, 5, TimeUnit.SECONDS);
        assertNull(errors.poll());
    } catch (Throwable e) {
        e.printStackTrace();
        throw e;
    } finally {
        // Wait for the clients to stop..
        stopClients.set(true);
        producer.join();
        consumer.join();
    }
}

---

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