Example usage for javax.jms Connection start

Introduction

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

Prototype

void start() throws JMSException;

Source Link

Document

Starts (or restarts) a connection's delivery of incoming messages.

Usage

From source file:ConsumerTool.java

public void run() {
    try {/* w w  w  . j a v a  2 s  . co m*/
        running = true;

        ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(user, password, url);
        Connection connection = connectionFactory.createConnection();
        if (durable && clientId != null && clientId.length() > 0 && !"null".equals(clientId)) {
            connection.setClientID(clientId);
        }
        connection.setExceptionListener(this);
        connection.start();

        session = connection.createSession(transacted, ackMode);
        if (topic) {
            destination = session.createTopic(subject);
        } else {
            destination = session.createQueue(subject);
        }

        replyProducer = session.createProducer(null);
        replyProducer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);

        MessageConsumer consumer = null;
        if (durable && topic) {
            consumer = session.createDurableSubscriber((Topic) destination, consumerName);
        } else {
            consumer = session.createConsumer(destination);
        }

        if (maxiumMessages > 0) {
            consumeMessagesAndClose(connection, session, consumer);
        } else {
            if (receiveTimeOut == 0) {
                consumer.setMessageListener(this);
            } else {
                consumeMessagesAndClose(connection, session, consumer, receiveTimeOut);
            }
        }

    } catch (Exception e) {
        System.out.println("[" + this.getName() + "] Caught: " + e);
        e.printStackTrace();
    }
}

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From source file:org.apache.activemq.store.kahadb.SubscriptionRecoveryTest.java

private void tryConsumeExpectNone(Topic topic) throws Exception {
    Connection connection = cf.createConnection();
    connection.setClientID("Inactive");
    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    MessageConsumer consumer = session.createDurableSubscriber(topic, "Inactive");
    connection.start();
    if (consumer.receive(TimeUnit.SECONDS.toMillis(10)) != null) {
        fail("Should be no messages for this durable.");
    }//from  ww w.ja v a2 s . c om
    consumer.close();
    connection.close();
}

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From source file:org.apache.activemq.store.kahadb.SubscriptionRecoveryTest.java

private void consumeDurableMessages(Topic topic, int count) throws Exception {
    Connection connection = cf.createConnection();
    connection.setClientID("Inactive");
    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    MessageConsumer consumer = session.createDurableSubscriber(topic, "Inactive");
    connection.start();
    for (int i = 0; i < count; ++i) {
        if (consumer.receive(TimeUnit.SECONDS.toMillis(10)) == null) {
            fail("should have received a message");
        }//  www  .  j a  v  a  2s  .  c o  m
    }
    consumer.close();
    connection.close();
}

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From source file:Retailer.java

public void run() {
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(user, password, url);
    try {/*from   w  w w.  j a va 2 s .  c o  m*/
        Connection connection = connectionFactory.createConnection();

        // The Retailer's session is non-trasacted.
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Destination vendorOrderQueue = session.createQueue("VendorOrderQueue");
        TemporaryQueue retailerConfirmQueue = session.createTemporaryQueue();

        MessageProducer producer = session.createProducer(vendorOrderQueue);
        MessageConsumer replyConsumer = session.createConsumer(retailerConfirmQueue);

        connection.start();

        for (int i = 0; i < 5; i++) {
            MapMessage message = session.createMapMessage();
            message.setString("Item", "Computer(s)");
            int quantity = (int) (Math.random() * 4) + 1;
            message.setInt("Quantity", quantity);
            message.setJMSReplyTo(retailerConfirmQueue);
            producer.send(message);
            System.out.println("Retailer: Ordered " + quantity + " computers.");

            MapMessage reply = (MapMessage) replyConsumer.receive();
            if (reply.getBoolean("OrderAccepted")) {
                System.out.println("Retailer: Order Filled");
            } else {
                System.out.println("Retailer: Order Not Filled");
            }
        }

        // Send a non-MapMessage to signal the end
        producer.send(session.createMessage());

        replyConsumer.close();
        connection.close();

    } catch (JMSException e) {
        e.printStackTrace();
    }
}

---

From source file:org.apache.camel.component.sjms.jms.ConnectionFactoryResource.java

@Override
public Connection makeObject() throws Exception {
    Connection connection = null;
    if (connectionFactory != null) {
        if (getUsername() != null && getPassword() != null) {
            connection = connectionFactory.createConnection(getUsername(), getPassword());
        } else {/*w ww . ja  v a2s  . c  om*/
            connection = connectionFactory.createConnection();
        }
    }
    if (connection != null) {
        if (ObjectHelper.isNotEmpty(getClientId())) {
            connection.setClientID(getClientId());
        }
        connection.start();
    }
    return connection;
}

---

From source file:org.wso2.carbon.bpmn.extensions.jms.JMSConnectionFactory.java

/**
 *
 * @return the shared connection object//from  w w w.  j a  v  a 2 s.co  m
 */
private synchronized Connection getSharedConnection() {

    Connection connection = sharedConnectionMap.get(lastReturnedConnectionIndex);

    //int connectionIndex = lastReturnedConnectionIndex;
    if (connection == null) {
        connection = createConnection();
        try {
            connection.start();
        } catch (JMSException e) {
            log.error(e.getMessage(), e);
        }

        if (connection != null) {
        }

        //            incrementConnectionCounter(lastReturnedConnectionIndex);
        sharedConnectionMap.put(lastReturnedConnectionIndex, connection);
    }
    //        else{
    //            incrementConnectionCounter(lastReturnedConnectionIndex);
    //        }
    lastReturnedConnectionIndex++;
    if (lastReturnedConnectionIndex >= maxSharedConnectionCount) {
        lastReturnedConnectionIndex = 0;
    }

    return connection;
}

---

From source file:org.dawnsci.commandserver.core.producer.ProcessConsumer.java

/**
 * WARNING - starts infinite loop - you have to kill 
 * @param uri//from  ww  w .  j av  a2  s .  com
 * @param submitQName
 * @param statusTName
 * @param statusQName
 * @throws Exception
 */
private void monitorSubmissionQueue(URI uri, String submitQName, String statusTName, String statusQName)
        throws Exception {

    ConnectionFactory connectionFactory = ConnectionFactoryFacade.createConnectionFactory(uri);
    Connection connection = connectionFactory.createConnection();
    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    Queue queue = session.createQueue(submitQName);

    final MessageConsumer consumer = session.createConsumer(queue);
    connection.start();

    System.out.println("Starting consumer for submissions to queue " + submitQName);
    while (isActive()) { // You have to kill it or call stop() to stop it!

        try {

            // Consumes messages from the queue.
            Message m = consumer.receive(1000);
            if (m != null) {

                // TODO FIXME Check if we have the max number of processes
                // exceeded and wait until we dont...

                TextMessage t = (TextMessage) m;
                ObjectMapper mapper = new ObjectMapper();

                final StatusBean bean = mapper.readValue(t.getText(), getBeanClass());

                if (bean != null) { // We add this to the status list so that it can be rendered in the UI

                    if (!isHandled(bean))
                        continue; // Consume it and move on

                    // Now we put the bean in the status queue and we 
                    // start the process
                    RemoteSubmission factory = new RemoteSubmission(uri);
                    factory.setLifeTime(t.getJMSExpiration());
                    factory.setPriority(t.getJMSPriority());
                    factory.setTimestamp(t.getJMSTimestamp());
                    factory.setQueueName(statusQName); // Move the message over to a status queue.

                    factory.submit(bean, false);

                    final ProgressableProcess process = createProcess(uri, statusTName, statusQName, bean);
                    if (process != null) {
                        if (process.isBlocking()) {
                            System.out.println("About to run job " + bean.getName() + " messageid("
                                    + t.getJMSMessageID() + ")");
                        }
                        processCount++;
                        process.start();
                        if (process.isBlocking()) {
                            System.out.println(
                                    "Ran job " + bean.getName() + " messageid(" + t.getJMSMessageID() + ")");
                        } else {
                            System.out.println("Started job " + bean.getName() + " messageid("
                                    + t.getJMSMessageID() + ")");
                        }
                    }

                }
            }

        } catch (Throwable ne) {
            // Really basic error reporting, they have to pipe to file.
            ne.printStackTrace();
            setActive(false);
        }
    }

}

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From source file:org.wildfly.camel.test.jms.TransactedJMSIntegrationTest.java

private void sendMessage(Connection connection, String jndiName, String message) throws Exception {
    InitialContext initialctx = new InitialContext();
    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    Destination destination = (Destination) initialctx.lookup(jndiName);
    MessageProducer producer = session.createProducer(destination);
    TextMessage msg = session.createTextMessage(message);
    producer.send(msg);/* w  w  w  . j av a2 s  . co  m*/
    connection.start();
}

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From source file:nl.nn.adapterframework.jms.MessagingSource.java

private Connection createAndStartConnection() throws JMSException {
    Connection connection;
    // do not log, as this may happen very often
    //      if (log.isDebugEnabled()) log.debug(getLogPrefix()+"creating Connection, openConnectionCount before ["+openConnectionCount.getValue()+"]");
    connection = createConnection();/*from  ww  w.  j  a v a2  s  .  c om*/
    openConnectionCount.increase();
    connection.start();
    return connection;
}

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From source file:org.apache.activemq.artemis.tests.integration.persistence.metrics.JournalPendingMessageTest.java

@Test
public void testScheduledStats() throws Exception {
    AtomicLong publishedMessageSize = new AtomicLong();

    Connection connection = cf.createConnection();
    connection.start();
    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    MessageProducer producer = session.createProducer(session.createQueue(defaultQueueName));
    producer.setDeliveryDelay(2000);/*from   ww w .  j  a v a2 s  . co  m*/
    producer.send(session.createTextMessage("test"));

    verifyPendingStats(defaultQueueName, 1, publishedMessageSize.get());
    verifyPendingDurableStats(defaultQueueName, 1, publishedMessageSize.get());
    verifyScheduledStats(defaultQueueName, 1, publishedMessageSize.get());

    consumeTestQueueMessages(1);

    verifyPendingStats(defaultQueueName, 0, 0);
    verifyPendingDurableStats(defaultQueueName, 0, 0);
    verifyScheduledStats(defaultQueueName, 0, 0);

    connection.close();
}

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