Example usage for javax.jms TopicSession createTopic

Introduction

In this page you can find the example usage for javax.jms TopicSession createTopic.

Prototype

Topic createTopic(String topicName) throws JMSException;

Source Link

Document

Creates a topic identity given a Topic name.

Usage

From source file:eu.eubrazilcc.lvl.storage.activemq.ActiveMQConnector.java

public void subscribe(final String topicName, final MessageListener listener) {
    String topicName2 = null;/*from   w  w  w.  j  a  v  a  2 s.co m*/
    checkArgument(isNotBlank(topicName2 = trimToEmpty(topicName)), "Uninitialized or invalid topic");
    checkNotNull(listener);
    TopicConnection conn = null;
    TopicSession session = null;
    MessageConsumer consumer = null;
    try {
        conn = broker().getConsumersConnFactory().createTopicConnection();
        conn.start();
        session = conn.createTopicSession(false, AUTO_ACKNOWLEDGE);
        final Topic topic = session.createTopic(topicName2);
        consumer = session.createConsumer(topic);
        consumer.setMessageListener(listener);
        register(TopicSubscriber.builder().topicName(topicName2).connection(conn).session(session)
                .consumer(consumer).build());
        LOGGER.info("Subscribed to topic: " + topicName2);
    } catch (JMSException e) {
        if (consumer != null) {
            try {
                consumer.close();
            } catch (JMSException ignore) {
            }
        }
        if (session != null) {
            try {
                session.close();
            } catch (JMSException ignore) {
            }
        }
        if (conn != null) {
            try {
                conn.close();
            } catch (JMSException ignore) {
            }
        }
        LOGGER.error("Failed to subscribe to topic: " + topicName2, e);
    }
}

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From source file:eu.eubrazilcc.lvl.storage.activemq.ActiveMQConnector.java

public void sendMessage(final String topicName, final String message) {
    checkArgument(isNotBlank(topicName), "Uninitialized or invalid topic");
    checkArgument(isNotBlank(message), "Uninitialized or invalid message");
    TopicConnection conn = null;/*from   w  w w.  j a  v  a  2s.c  om*/
    TopicSession session = null;
    MessageProducer producer = null;
    try {
        conn = (TopicConnection) broker().getProducersConnFactory().createConnection();
        /* conn = broker().getConnFactory().createTopicConnection();
        conn.start(); */
        session = conn.createTopicSession(false, AUTO_ACKNOWLEDGE);
        final Topic topic = session.createTopic(topicName);
        producer = session.createProducer(topic);
        producer.setDeliveryMode(NON_PERSISTENT);
        final TextMessage textMessage = session.createTextMessage(message);
        producer.send(textMessage);
    } catch (JMSException e) {
        LOGGER.error("Failed to send message to topic: " + topicName, e);
    } finally {
        if (producer != null) {
            try {
                producer.close();
            } catch (JMSException ignore) {
            }
        }
        if (session != null) {
            try {
                session.close();
            } catch (JMSException ignore) {
            }
        }
        /* if (conn != null) {
           try {
              conn.close();
           } catch (JMSException ignore) { }
        } */
    }
}

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

public Destination getDestination() throws NamingException, JMSException, JmsException {
    if (destination == null) {
        String destinationName = getDestinationName();
        if (StringUtils.isEmpty(destinationName)) {
            throw new NamingException("no destinationName specified");
        }//from ww  w.  ja v  a 2 s . c om
        if (isLookupDestination()) {
            if (!useTopicFunctions || getPersistent()) {
                destination = getDestination(destinationName);
            } else {
                TopicSession session = null;
                try {
                    session = (TopicSession) createSession();
                    destination = session.createTopic(destinationName);
                } finally {
                    closeSession(session);
                }
            }
        } else {
            destination = getJmsMessagingSource().createDestination(destinationName);
        }
        if (destination == null) {
            throw new NamingException("cannot get Destination from [" + destinationName + "]");
        }
    }
    return destination;
}

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

private void produceExpiredAndOneNonExpiredMessages() throws JMSException {
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("vm://" + brokerName);
    TopicConnection connection = connectionFactory.createTopicConnection();
    TopicSession session = connection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
    Topic topic = session.createTopic(topicName);
    MessageProducer producer = session.createProducer(topic);
    producer.setTimeToLive(TimeUnit.SECONDS.toMillis(1));
    for (int i = 0; i < 40000; i++) {
        sendRandomMessage(session, producer);
    }//w  w w. j a v a 2 s.  c  o  m
    producer.setTimeToLive(TimeUnit.DAYS.toMillis(1));
    sendRandomMessage(session, producer);
    connection.close();
    LOG.info("produceExpiredAndOneNonExpiredMessages done");
}

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

private void registerDurableSubscription() throws JMSException {
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("vm://" + brokerName);
    TopicConnection connection = connectionFactory.createTopicConnection();
    connection.setClientID(clientID);//from w  ww. j ava2 s.  c o m
    TopicSession topicSession = connection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
    Topic topic = topicSession.createTopic(topicName);
    TopicSubscriber durableSubscriber = topicSession.createDurableSubscriber(topic, durableSubName);
    connection.start();
    durableSubscriber.close();
    connection.close();
    LOG.info("Durable Sub Registered");
}

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

private Message collectMessagesFromDurableSubscriptionForOneMinute() throws Exception {
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("vm://" + brokerName);
    TopicConnection connection = connectionFactory.createTopicConnection();

    connection.setClientID(clientID);/*  ww w.  j  av  a2 s. c o  m*/
    TopicSession topicSession = connection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
    Topic topic = topicSession.createTopic(topicName);
    connection.start();
    TopicSubscriber subscriber = topicSession.createDurableSubscriber(topic, durableSubName);
    LOG.info("About to receive messages");
    Message message = subscriber.receive(120000);
    subscriber.close();
    connection.close();
    LOG.info("collectMessagesFromDurableSubscriptionForOneMinute done");

    return message;
}

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From source file:org.apache.stratos.adc.topology.mgt.subscriber.TopologySubscriber.java

public static void subscribe(String topicName) {
    Properties initialContextProperties = new Properties();
    TopicSubscriber topicSubscriber = null;
    TopicSession topicSession = null;
    TopicConnection topicConnection = null;
    InitialContext initialContext = null;

    initialContextProperties.put("java.naming.factory.initial",
            "org.wso2.andes.jndi.PropertiesFileInitialContextFactory");

    String mbServerIp = System.getProperty(TopologyConstants.MB_SERVER_IP) == null
            ? TopologyConstants.DEFAULT_MB_SERVER_IP
            : System.getProperty(TopologyConstants.MB_SERVER_IP);

    String connectionString = "amqp://admin:admin@clientID/carbon?brokerlist='tcp://" + mbServerIp
            + "'&reconnect='true'";
    initialContextProperties.put("connectionfactory.qpidConnectionfactory", connectionString);

    try {/*from  w  ww .ja  v a  2  s .c  om*/
        initialContext = new InitialContext(initialContextProperties);
        TopicConnectionFactory topicConnectionFactory = (TopicConnectionFactory) initialContext
                .lookup("qpidConnectionfactory");
        topicConnection = topicConnectionFactory.createTopicConnection();
        topicConnection.start();
        topicSession = topicConnection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);

        Topic topic = topicSession.createTopic(topicName);
        topicSubscriber = topicSession.createSubscriber(topic);

        topicSubscriber.setMessageListener(new TopologyListener());

    } catch (Exception e) {
        log.error(e.getMessage(), e);

        try {
            if (topicSubscriber != null) {
                topicSubscriber.close();
            }

            if (topicSession != null) {
                topicSession.close();
            }

            if (topicConnection != null) {
                topicConnection.close();
            }
        } catch (JMSException e1) {
            // ignore
        }

    } finally {
        // start the health checker
        Thread healthChecker = new Thread(new TopicHealthChecker(topicName, topicSubscriber));
        healthChecker.start();
    }
}

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From source file:org.apache.stratos.lb.endpoint.subscriber.TopologySubscriber.java

public static void subscribe(String topicName) {
    Properties initialContextProperties = new Properties();
    TopicSubscriber topicSubscriber = null;
    TopicSession topicSession = null;
    TopicConnection topicConnection = null;
    InitialContext initialContext = null;

    initialContextProperties.put("java.naming.factory.initial",
            "org.wso2.andes.jndi.PropertiesFileInitialContextFactory");

    String mbServerUrl = null;/* w  w  w.j  a  v  a2  s. co  m*/
    if (ConfigHolder.getInstance().getLbConfig() != null) {
        mbServerUrl = ConfigHolder.getInstance().getLbConfig().getLoadBalancerConfig().getMbServerUrl();
    }
    String connectionString = "amqp://admin:admin@clientID/carbon?brokerlist='tcp://"
            + (mbServerUrl == null ? TopologyConstants.DEFAULT_MB_SERVER_URL : mbServerUrl)
            + "'&reconnect='true'";
    initialContextProperties.put("connectionfactory.qpidConnectionfactory", connectionString);

    try {
        initialContext = new InitialContext(initialContextProperties);
        TopicConnectionFactory topicConnectionFactory = (TopicConnectionFactory) initialContext
                .lookup("qpidConnectionfactory");
        topicConnection = topicConnectionFactory.createTopicConnection();
        topicConnection.start();
        topicSession = topicConnection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);

        Topic topic = topicSession.createTopic(topicName);
        topicSubscriber = topicSession.createSubscriber(topic);

        topicSubscriber.setMessageListener(new TopologyListener());

    } catch (Exception e) {
        log.error(e.getMessage(), e);

        try {
            if (topicSubscriber != null) {
                topicSubscriber.close();
            }

            if (topicSession != null) {
                topicSession.close();
            }

            if (topicConnection != null) {
                topicConnection.close();
            }
        } catch (JMSException e1) {
            // ignore
        }

    } finally {
        // start the health checker
        Thread healthChecker = new Thread(new TopicHealthChecker(topicName, topicSubscriber));
        healthChecker.start();
    }
}

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From source file:org.apache.stratos.messaging.broker.connect.amqp.AmqpTopicPublisher.java

/**
 * Publish message to message broker.//from  w  w w . j  a v a2 s.  com
 *
 * @param message Message to be published
 * @param retry   Retry if message broker is not available
 */
@Override
public void publish(String message, boolean retry) {
    boolean published = false;
    while (!published) {
        TopicSession topicSession = null;
        javax.jms.TopicPublisher topicPublisher = null;
        try {
            while (connectionStatus == ConnectionStatus.ReConnecting) {
                // Connection has been broken, wait until reconnected
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException ignore) {
                }
            }

            if (connectionStatus == ConnectionStatus.ReConnected) {
                // Publisher has reconnected, wait another 2 seconds to make sure all subscribers
                // have been reconnected to receive the message
                Thread.sleep(2000);
                connectionStatus = ConnectionStatus.Connected;
            }

            topicSession = newSession();
            Topic topic = lookupTopic(topicName);
            if (topic == null) {
                // if the topic doesn't exist, create it.
                topic = topicSession.createTopic(topicName);
            }
            topicPublisher = topicSession.createPublisher(topic);
            TextMessage textMessage = topicSession.createTextMessage(message);
            topicPublisher.publish(textMessage);
            published = true;
        } catch (Exception e) {
            String errorMessage = "Could not publish to topic: [topic-name] %s";
            log.error(errorMessage, e);
            if (!retry) {
                // Retry is disabled, throw exception
                throw new MessagingException(errorMessage, e);
            }
            // Try to reconnect
            reconnect();
        } finally {

            try {
                if (topicSession != null) {
                    topicSession.close();
                }
                if (topicPublisher != null) {
                    topicPublisher.close();
                }

            } catch (JMSException e) {
                message = "Error cleaning up pubisher";
                log.error(message, e);
                throw new MessagingException(message, e);
            }

        }
    }
}

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From source file:org.apache.stratos.messaging.broker.connect.amqp.AmqpTopicSubscriber.java

@Override
public void subscribe() {
    try {/* w ww. j  a v a 2  s  .co  m*/
        TopicSession topicSession = newSession();
        Topic topic = lookupTopic(topicName);
        if (topic == null) {
            // if topic doesn't exist, create it.
            topic = topicSession.createTopic(topicName);
        }
        javax.jms.TopicSubscriber topicSubscriber = topicSession.createSubscriber(topic);
        topicSubscriber.setMessageListener(new javax.jms.MessageListener() {
            @Override
            public void onMessage(Message message) {
                try {
                    String topicName = null, messageText = null;

                    if (message instanceof ActiveMQTextMessage) {
                        ActiveMQTextMessage textMessage = (ActiveMQTextMessage) message;
                        topicName = textMessage.getDestination().getPhysicalName();
                        messageText = textMessage.getText();
                    } else if (message instanceof ActiveMQBytesMessage) {
                        ActiveMQBytesMessage bytesMessage = (ActiveMQBytesMessage) message;
                        topicName = bytesMessage.getDestination().getPhysicalName();
                        messageText = new String(bytesMessage.getContent().data);
                    } else {
                        throw new RuntimeException(
                                String.format("Could not receive message, " + "unknown JMS message type: %s",
                                        message.getClass().getName()));
                    }
                    org.apache.stratos.messaging.domain.Message message_ = new org.apache.stratos.messaging.domain.Message(
                            topicName, messageText);
                    messageListener.messageReceived(message_);
                } catch (Exception e) {
                    String error = "An error occurred when receiving message";
                    log.error(error, e);
                }
            }
        });
    } catch (Exception e) {
        String message = "Could not subscribe to topic: " + topicName;
        log.error(message, e);
        throw new MessagingException(message, e);
    }
}

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