Example usage for javax.jms QueueConnection start

Introduction

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

Prototype

void start() throws JMSException;

Source Link

Document

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

Usage

From source file:org.wso2.extension.siddhi.io.jms.source.client.JMSClient.java

public void sendJMSEvents(List<String> messageList, String topicName, String queueName, String format,
        String broker, String providerURL) {
    if (format == null || "map".equals(format)) {
        format = "csv";
    }//w w w.  ja v a2s . com
    if ("".equalsIgnoreCase(broker)) {
        broker = "activemq";
    }
    Session session = null;
    Properties properties = new Properties();
    if (!"activemq".equalsIgnoreCase(broker) && !"mb".equalsIgnoreCase(broker)
            && !"qpid".equalsIgnoreCase(broker)) {
        log.error("Please enter a valid JMS message broker. (ex: activemq, mb, qpid");
        return;
    }
    try {
        if (topicName != null && !"".equalsIgnoreCase(topicName)) {
            TopicConnection topicConnection;
            TopicConnectionFactory connFactory = null;
            if ("activemq".equalsIgnoreCase(broker)) {
                properties.load(ClassLoader.getSystemClassLoader().getResourceAsStream("activemq.properties"));
                // to provide custom provider urls
                if (providerURL != null) {
                    properties.put(Context.PROVIDER_URL, providerURL);
                }
                Context context = new InitialContext(properties);
                connFactory = (TopicConnectionFactory) context.lookup("ConnectionFactory");
            } else if ("mb".equalsIgnoreCase(broker)) {
                properties.load(ClassLoader.getSystemClassLoader().getResourceAsStream("mb.properties"));
                Context context = new InitialContext(properties);
                connFactory = (TopicConnectionFactory) context.lookup("qpidConnectionFactory");
            } else if ("qpid".equalsIgnoreCase(broker)) {
                properties.load(ClassLoader.getSystemClassLoader().getResourceAsStream("qpid.properties"));
                Context context = new InitialContext(properties);
                connFactory = (TopicConnectionFactory) context.lookup("qpidConnectionFactory");
            }
            if (connFactory != null) {
                topicConnection = connFactory.createTopicConnection();
                topicConnection.start();
                session = topicConnection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
                if (session != null) {
                    Topic topic = session.createTopic(topicName);
                    MessageProducer producer = session.createProducer(topic);
                    //List<String> messagesList = JMSClientUtil.readFile(filePath);
                    try {
                        if ("csv".equalsIgnoreCase(format)) {
                            log.info("Sending Map messages on '" + topicName + "' topic");
                            JMSClientUtil.publishMapMessage(producer, session, messageList);

                        } else {
                            log.info("Sending  " + format + " messages on '" + topicName + "' topic");
                            JMSClientUtil.publishTextMessage(producer, session, messageList);
                        }
                        log.info("All Order Messages sent");
                    } catch (JMSException e) {
                        log.error("Cannot subscribe." + e.getMessage(), e);
                    } catch (IOException e) {
                        log.error("Error when reading the data file." + e.getMessage(), e);
                    } finally {
                        producer.close();
                        session.close();
                        topicConnection.stop();
                    }
                }
            } else {
                log.error("Error when creating connection factory. Please check necessary jar files");
            }
        } else if (queueName != null && !queueName.equalsIgnoreCase("")) {
            QueueConnection queueConnection;
            QueueConnectionFactory connFactory = null;
            if ("activemq".equalsIgnoreCase(broker)) {
                properties.load(ClassLoader.getSystemClassLoader().getResourceAsStream("activemq.properties"));
                // to provide custom provider urls
                if (providerURL != null) {
                    properties.put(Context.PROVIDER_URL, providerURL);
                }
                Context context = new InitialContext(properties);
                connFactory = (QueueConnectionFactory) context.lookup("ConnectionFactory");
            } else if ("mb".equalsIgnoreCase(broker)) {
                properties.load(ClassLoader.getSystemClassLoader().getResourceAsStream("mb.properties"));
                Context context = new InitialContext(properties);
                connFactory = (QueueConnectionFactory) context.lookup("qpidConnectionFactory");
            } else if ("qpid".equalsIgnoreCase(broker)) {
                properties.load(ClassLoader.getSystemClassLoader().getResourceAsStream("qpid.properties"));
                Context context = new InitialContext(properties);
                connFactory = (QueueConnectionFactory) context.lookup("qpidConnectionFactory");
            }
            if (connFactory != null) {
                queueConnection = connFactory.createQueueConnection();
                queueConnection.start();
                session = queueConnection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
                if (session != null) {
                    Queue queue = session.createQueue(queueName);
                    MessageProducer producer = session.createProducer(queue);
                    //List<String> messagesList = JMSClientUtil.readFile(filePath);
                    try {
                        if ("csv".equalsIgnoreCase(format)) {
                            log.info("Sending Map messages on '" + queueName + "' queue");
                            JMSClientUtil.publishMapMessage(producer, session, messageList);

                        } else {
                            log.info("Sending  " + format + " messages on '" + queueName + "' queue");
                            JMSClientUtil.publishTextMessage(producer, session, messageList);
                        }
                    } catch (JMSException e) {
                        log.error("Cannot subscribe." + e.getMessage(), e);
                    } catch (IOException e) {
                        log.error("Error when reading the data file." + e.getMessage(), e);
                    } finally {
                        producer.close();
                        session.close();
                        queueConnection.stop();
                    }
                }
            } else {
                log.error("Error when creating connection factory. Please check necessary jar files");
            }
        } else {
            log.error("Enter queue name or topic name to be published!");
        }
    } catch (Exception e) {
        log.error("Error when publishing" + e.getMessage(), e);
    }
}

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From source file:org.wso2.siddhi.extension.output.transport.jms.util.QueueConsumer.java

public void run() {
    // create queue connection
    QueueConnection queueConnection = null;
    try {/*from w  w  w. j a v a  2s  .c o  m*/
        queueConnection = queueConnectionFactory.createQueueConnection();
        queueConnection.start();
    } catch (JMSException e) {
        log.error("Can not create queue connection." + e.getMessage(), e);
        return;
    }
    Session session;
    try {
        session = queueConnection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
        Destination destination = session.createQueue(queueName);
        MessageConsumer consumer = session.createConsumer(destination);
        log.info("Listening for messages at " + queueName);
        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);
    }
}

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