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.

Click Source Link

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:com.fusesource.examples.activemq.SimpleSubscriber.java

public static void main(String args[]) {
    Connection connection = null;

    try {/*from  ww  w  . j a va2 s  . co m*/
        // JNDI lookup of JMS Connection Factory and JMS Destination
        Context context = new InitialContext();
        ConnectionFactory factory = (ConnectionFactory) context.lookup(CONNECTION_FACTORY_NAME);
        connection = factory.createConnection();
        connection.setClientID("ApplicationA");

        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        String topicName = System.getProperty("topic");

        Topic topic = session.createTopic(topicName);
        MessageConsumer consumer = session.createConsumer(topic);

        LOG.info("Start consuming messages from " + topicName + " with " + MESSAGE_TIMEOUT_MILLISECONDS
                + "ms timeout");

        // Synchronous message consumer
        int i = 1;
        while (true) {
            Message message = consumer.receive(MESSAGE_TIMEOUT_MILLISECONDS);
            if (message != null) {
                if (message instanceof TextMessage) {
                    String text = ((TextMessage) message).getText();
                    LOG.info("Got " + (i++) + ". message: " + text);
                }
            } else {
                break;
            }
        }

        consumer.close();
        session.close();
    } catch (Throwable t) {
        LOG.error(t);
    } finally {
        // Cleanup code
        // In general, you should always close producers, consumers,
        // sessions, and connections in reverse order of creation.
        // For this simple example, a JMS connection.close will
        // clean up all other resources.
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                LOG.error(e);
            }
        }
    }
}

---

From source file:example.browser.Producer.java

public static void main(String[] args) {
    String url = BROKER_URL;
    if (args.length > 0) {
        url = args[0].trim();/*from   w ww .  j a v a 2 s . com*/
    }
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("admin", "password", url);
    Connection connection = null;

    try {

        connection = connectionFactory.createConnection();
        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        Destination destination = session.createQueue("test-queue");
        MessageProducer producer = session.createProducer(destination);

        for (int i = 0; i < NUM_MESSAGES_TO_SEND; i++) {
            TextMessage message = session.createTextMessage("Message #" + i);
            System.out.println("Sending message #" + i);
            producer.send(message);
            Thread.sleep(DELAY);
        }

        producer.close();
        session.close();

    } catch (Exception e) {
        System.out.println("Caught exception!");
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                System.out.println("Could not close an open connection...");
            }
        }
    }
}

---

From source file:com.fusesource.examples.activemq.VirtualConsumer.java

public static void main(String args[]) {
    Connection connection = null;

    try {//w w  w.ja  va  2  s . c  o  m
        // JNDI lookup of JMS Connection Factory and JMS Destination
        Context context = new InitialContext();
        ConnectionFactory factory = (ConnectionFactory) context.lookup(CONNECTION_FACTORY_NAME);

        connection = factory.createConnection();
        connection.setClientID(System.getProperty("clientID"));
        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        Queue queue = session.createQueue(System.getProperty("queue"));

        MessageConsumer consumer = session.createConsumer(queue);

        LOG.info("Start consuming messages from " + queue + " with " + MESSAGE_TIMEOUT_MILLISECONDS
                + "ms timeout");

        // Synchronous message consumer
        int i = 1;
        while (true) {
            Message message = consumer.receive(MESSAGE_TIMEOUT_MILLISECONDS);
            if (message != null) {
                if (message instanceof TextMessage) {
                    String text = ((TextMessage) message).getText();
                    LOG.info("Got " + (i++) + ". message: " + text);
                }
            } else {
                break;
            }
        }

        consumer.close();
        session.close();
    } catch (Throwable t) {
        LOG.error(t);
    } finally {
        // Cleanup code
        // In general, you should always close producers, consumers,
        // sessions, and connections in reverse order of creation.
        // For this simple example, a JMS connection.close will
        // clean up all other resources.
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                LOG.error(e);
            }
        }
    }
}

---

From source file:example.browser.Browser.java

public static void main(String[] args) {
    String url = BROKER_URL;
    if (args.length > 0) {
        url = args[0].trim();/* w  w w  .j  a v a  2 s. c  om*/
    }
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("admin", "password", url);
    Connection connection = null;

    try {

        connection = connectionFactory.createConnection();
        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        Queue destination = session.createQueue("test-queue");
        QueueBrowser browser = session.createBrowser(destination);
        Enumeration enumeration = browser.getEnumeration();

        while (enumeration.hasMoreElements()) {
            TextMessage message = (TextMessage) enumeration.nextElement();
            System.out.println("Browsing: " + message);
            TimeUnit.MILLISECONDS.sleep(DELAY);
        }

        session.close();

    } catch (Exception e) {
        System.out.println("Caught exception!");
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                System.out.println("Could not close an open connection...");
            }
        }
    }
}

---

From source file:example.composite.dest.Producer.java

public static void main(String[] args) {
    String url = BROKER_URL;
    if (args.length > 0) {
        url = args[0].trim();/*from   w  w w .  ja v  a 2 s. c om*/
    }
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("admin", "password", url);
    Connection connection = null;

    try {

        connection = connectionFactory.createConnection();
        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        Destination destination = session
                .createQueue("test-queue,test-queue-foo,test-queue-bar,topic://test-topic-foo");
        MessageProducer producer = session.createProducer(destination);

        for (int i = 0; i < NUM_MESSAGES_TO_SEND; i++) {
            TextMessage message = session.createTextMessage("Message #" + i);
            System.out.println("Sending message #" + i);
            producer.send(message);
            Thread.sleep(DELAY);
        }

        producer.close();
        session.close();

    } catch (Exception e) {
        System.out.println("Caught exception!");
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                System.out.println("Could not close an open connection...");
            }
        }
    }
}

---

From source file:example.topic.durable.Publisher.java

public static void main(String[] args) {
    String url = BROKER_URL;
    if (args.length > 0) {
        url = args[0].trim();/*from  w ww.  j a  v  a 2s . c om*/
    }
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("admin", "password", url);
    Connection connection = null;

    try {

        connection = connectionFactory.createConnection();
        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        Destination destination = session.createTopic("test-topic");
        MessageProducer producer = session.createProducer(destination);

        for (int i = 0; i < NUM_MESSAGES_TO_SEND; i++) {
            TextMessage message = session.createTextMessage("Message #" + i);
            System.out.println("Sending message #" + i);
            producer.send(message);
            Thread.sleep(DELAY);
        }

        // tell the subscribers we're done
        producer.send(session.createTextMessage("END"));

        producer.close();
        session.close();

    } catch (Exception e) {
        System.out.println("Caught exception!");
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                System.out.println("Could not close an open connection...");
            }
        }
    }
}

---

From source file:example.queue.selector.Producer.java

public static void main(String[] args) {
    String url = BROKER_URL;
    if (args.length > 0) {
        url = args[0].trim();/* w  w  w.j  a v a  2 s .c om*/
    }
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("admin", "password", url);
    Connection connection = null;

    try {

        connection = connectionFactory.createConnection();
        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        Destination destination = session.createQueue("test-queue");
        MessageProducer producer = session.createProducer(destination);

        for (int i = 0; i < NUM_MESSAGES_TO_SEND; i++) {
            TextMessage message = session.createTextMessage("Message #" + i);
            System.out.println("Sending message #" + i);
            if (i % 2 == 0) {
                System.out.println("Sending to me");
                message.setStringProperty("intended", "me");
            } else {
                System.out.println("Sending to you");
                message.setStringProperty("intended", "you");
            }
            producer.send(message);
            Thread.sleep(DELAY);
        }

        producer.close();
        session.close();

    } catch (Exception e) {
        System.out.println("Caught exception!");
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                System.out.println("Could not close an open connection...");
            }
        }
    }
}

---

From source file:example.queue.Consumer.java

public static void main(String[] args) {
    String url = BROKER_URL;
    if (args.length > 0) {
        url = args[0].trim();//from ww  w.  j a v a  2  s .c o m
    }
    System.out.println("\nWaiting to receive messages... will timeout after " + TIMEOUT / 1000 + "s");
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("admin", "password", url);
    Connection connection = null;

    try {

        connection = connectionFactory.createConnection();
        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        Destination destination = session.createQueue("test-queue");
        MessageConsumer consumer = session.createConsumer(destination);

        int i = 0;
        while (true) {
            Message message = consumer.receive(TIMEOUT);

            if (message != null) {
                if (message instanceof TextMessage) {
                    String text = ((TextMessage) message).getText();
                    System.out.println("Got " + i++ + ". message: " + text);
                }
            } else {
                break;
            }
        }

        consumer.close();
        session.close();

    } catch (Exception e) {
        System.out.println("Caught exception!");
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                System.out.println("Could not close an open connection...");
            }
        }
    }
}

---

From source file:example.queue.selector.Consumer.java

public static void main(String[] args) {
    String url = BROKER_URL;
    if (args.length > 0) {
        url = args[0].trim();/*from   w  w w. ja  v  a2  s .  co m*/
    }
    System.out.println("\nWaiting to receive messages... will timeout after " + TIMEOUT / 1000 + "s");
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("admin", "password", url);
    Connection connection = null;

    try {

        connection = connectionFactory.createConnection();
        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        Destination destination = session.createQueue("test-queue");
        MessageConsumer consumer = session.createConsumer(destination, "intended = 'me'");

        int i = 0;
        while (true) {
            Message message = consumer.receive(TIMEOUT);

            if (message != null) {
                if (message instanceof TextMessage) {
                    String text = ((TextMessage) message).getText();
                    System.out.println("Got " + i++ + ". message: " + text);
                }
            } else {
                break;
            }
        }

        consumer.close();
        session.close();

    } catch (Exception e) {
        System.out.println("Caught exception!");
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                System.out.println("Could not close an open connection...");
            }
        }
    }
}

---

From source file:example.queue.exclusive.Consumer.java

public static void main(String[] args) {
    String url = BROKER_URL;
    if (args.length > 0) {
        url = args[0].trim();//from w  ww  .  j ava 2s. c o  m
    }
    System.out.println("\nWaiting to receive messages... will timeout after " + TIMEOUT / 1000 + "s");
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("admin", "password", url);
    Connection connection = null;

    try {

        connection = connectionFactory.createConnection();
        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        Queue destination = session.createQueue("test-queue?consumer.exclusive=true");
        MessageConsumer consumer = session.createConsumer(destination);

        int i = 0;
        while (true) {
            Message message = consumer.receive(TIMEOUT);

            if (message != null) {
                if (message instanceof TextMessage) {
                    String text = ((TextMessage) message).getText();
                    System.out.println("Got " + i++ + ". message: " + text);
                }
            } else {
                break;
            }
        }

        consumer.close();
        session.close();

    } catch (Exception e) {
        System.out.println("Caught exception!");
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                System.out.println("Could not close an open connection...");
            }
        }
    }
}

---

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