Example usage for com.rabbitmq.client Channel close

Introduction

In this page you can find the example usage for com.rabbitmq.client Channel close.

Prototype

@Override
void close() throws IOException, TimeoutException;

Source Link

Document

Close this channel with the com.rabbitmq.client.AMQP#REPLY_SUCCESS close code and message 'OK'.

Usage

From source file:com.ericsson.eiffel.remrem.publish.helper.RabbitMqProperties.java

License:Apache License

/**
 * This method is used to check for checking exchange availability, if
 * exchange is not available creates a new exchange based on isCreateExchangeIfNotExisting true boolean property  .
 * @throws RemRemPublishException/*from w ww  . ja  v  a 2 s .c  o  m*/
 * @throws TimeoutException
 * @throws IOException
 */
public void checkAndCreateExchangeIfNeeded() throws RemRemPublishException {
    final boolean exchangeAlreadyExist = hasExchange();
    if (!exchangeAlreadyExist) {
        if (isCreateExchangeIfNotExisting()) {
            Connection connection = null;
            try {
                connection = factory.newConnection();
            } catch (final IOException | TimeoutException e) {
                throw new RemRemPublishException("Exception occurred while creating Rabbitmq connection ::"
                        + factory.getHost() + ":" + factory.getPort() + e.getMessage());
            }
            Channel channel = null;
            try {
                channel = connection.createChannel();
            } catch (final IOException e) {
                throw new RemRemPublishException(
                        "Exception occurred while creating Channel with Rabbitmq connection ::"
                                + factory.getHost() + ":" + factory.getPort() + e.getMessage());
            }
            try {
                channel.exchangeDeclare(exchangeName, "topic", true);
            } catch (final IOException e) {
                log.info(exchangeName + "failed to create an exchange");
                throw new RemRemPublishException("Unable to create Exchange with Rabbitmq connection "
                        + exchangeName + factory.getHost() + ":" + factory.getPort() + e.getMessage());
            } finally {
                if (channel == null || channel.isOpen()) {
                    try {
                        channel.close();
                        connection.close();
                    } catch (IOException | TimeoutException e) {
                        log.warn("Exception occurred while closing the channel" + e.getMessage());
                    }
                }
            }
        } else {
            if (!Boolean.getBoolean(PropertiesConfig.CLI_MODE)) {
                throw new RemRemPublishException(
                        exchangeName + PropertiesConfig.INVALID_EXCHANGE_MESSAGE_SERVICE);
            } else {
                throw new RemRemPublishException(
                        "Exchange " + exchangeName + PropertiesConfig.INVALID_EXCHANGE_MESSAGE_CLI);
            }
        }
    }
}

---

From source file:com.ericsson.eiffel.remrem.publish.helper.RabbitMqProperties.java

License:Apache License

/**
 * This method is used to check exchange exists or not
 * @return Boolean//from w w  w.  ja v  a2s.co  m
 * @throws RemRemPublishException
 * @throws TimeoutException
 * @throws IOException
 */
private boolean hasExchange() throws RemRemPublishException {
    log.info("Exchange is: " + exchangeName);
    Connection connection;
    try {
        connection = factory.newConnection();
    } catch (final IOException | TimeoutException e) {
        throw new RemRemPublishException("Exception occurred while creating Rabbitmq connection ::"
                + factory.getHost() + factory.getPort() + e.getMessage());
    }
    Channel channel = null;
    try {
        channel = connection.createChannel();
    } catch (final IOException e) {
        log.info("Exchange " + exchangeName + " does not Exist");
        throw new RemRemPublishException("Exception occurred while creating Channel with Rabbitmq connection ::"
                + factory.getHost() + factory.getPort() + e.getMessage());
    }
    try {
        channel.exchangeDeclarePassive(exchangeName);
        return true;
    } catch (final IOException e) {
        log.info("Exchange " + exchangeName + " does not Exist");
        return false;
    } finally {
        if (channel != null && channel.isOpen()) {
            try {
                channel.close();
                connection.close();
            } catch (IOException | TimeoutException e) {
                log.warn("Exception occurred while closing the channel" + e.getMessage());
            }
        }
    }
}

---

From source file:com.es.sensorgateway.Publish.java

/**
 * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
 * methods./*  ww  w.ja  v  a 2  s  .co  m*/
 *
 * @param request servlet request
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException, UnknownHostException {

    response.setContentType("text/html;charset=UTF-8");

    try (PrintWriter out = response.getWriter()) {
        /* TODO output your page here. You may use following sample code. */

        logger.info("Connection with rabbit Mq stablish!");

        byte[] original;
        String message = null;
        try {
            message = request.getParameter("data");
            original = Base64.getUrlDecoder().decode(message);
        } catch (Exception ex) {
            response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
            response.getWriter().write(HttpServletResponse.SC_BAD_REQUEST);
            logger.debug("Ignoring message: " + message);
            return;
        }

        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("systembus"); // RabbitMQ IP
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();

        //POR aqui as cenas de autenticao
        response.setStatus(HttpServletResponse.SC_OK);
        response.getWriter().write(HttpServletResponse.SC_OK);
        logger.info("Received request from REST gateway!");

        channel.exchangeDeclare("sensors", "topic", false);
        channel.basicPublish("sensors", "realtime.sensordata", null, original);
        logger.info("Message sent to broker: " + message);

        channel.close();
        connection.close();
        logger.info("Connection with rabbit Mq closed!");

    } catch (TimeoutException ex) {
        logger.error(ex);
    }
}

---

From source file:com.espertech.esperio.amqp.AMQPSupportUtil.java

License:Open Source License

public static int drainQueue(String hostName, String queueName) {
    Connection connection = null;
    Channel channel = null;

    try {//from   w  w w. j a  va 2  s .  com
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost(hostName);
        connection = factory.newConnection();
        channel = connection.createChannel();

        // java.lang.String queue, boolean durable, boolean exclusive, boolean autoDelete, java.util.Map<java.lang.String,java.lang.Object> arguments
        channel.queueDeclare(queueName, false, false, true, null);

        QueueingConsumer consumer = new QueueingConsumer(channel);
        channel.basicConsume(queueName, true, consumer);

        int count = 0;
        while (true) {
            final QueueingConsumer.Delivery msg = consumer.nextDelivery(1);
            if (msg == null) {
                return count;
            }
        }
    } catch (Exception ex) {
        log.error("Error attaching to AMQP: " + ex.getMessage(), ex);
    } finally {
        if (channel != null) {
            try {
                channel.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        if (connection != null) {
            try {
                connection.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    return -1;
}

---

From source file:com.eventbook.controller.SpringbootPocController.java

@RequestMapping(value = "/rabbitMQSendTest", method = RequestMethod.GET)
public String rabbitMQSendTest(@RequestParam(value = "message", defaultValue = "Hello World!") String message) {
    try {//from  w w  w . j  a v  a 2  s .  c om
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("rabbitmq");
        factory.setPort(5672);
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();
        channel.queueDeclare(QUEUE_NAME, false, false, false, null);
        channel.basicPublish("", QUEUE_NAME, null, message.getBytes("UTF-8"));
        System.out.println(" [x] Sent '" + message + "'");

        channel.close();
        connection.close();

        return "rabbitMQSendTest Sent: " + message;
    } catch (IOException | TimeoutException ex) {
        Logger.getLogger(SpringbootPocController.class.getName()).log(Level.SEVERE, null, ex);
    }

    return "rabbitMQSendTest has been failed!!!";
}

---

From source file:com.flipkart.bifrost.framework.impl.RabbitMQBifrostExecutor.java

License:Apache License

@Override
public void shutdown() throws BifrostException {
    try {//from   w  w  w  .  jav  a 2  s .c  om
        publishChannel.close();
        for (ReplyListener<T> listener : listeners) {
            Channel channel = listener.getChannel();
            channel.basicCancel(listener.getConsumerTag());
            channel.close();
        }
        //TODO::Save the futures and shut them down
    } catch (Exception e) {
        logger.error("Error publishing: ", e);
    }
}

---

From source file:com.flipkart.bifrost.framework.impl.RabbitMQBifrostRemoteCallExecutionServer.java

License:Apache License

@Override
public void stop() throws BifrostException {
    try {//from   w  ww .  j  a  va 2 s  . com
        for (RabbitMQExecutionServerListener<T> listener : listeners) {
            if (!Strings.isNullOrEmpty(listener.getConsumerTag())) {
                Channel channel = listener.getChannel();
                channel.basicCancel(listener.getConsumerTag());
                channel.close();
            }
        }
    } catch (IOException e) {
        throw new BifrostException(BifrostException.ErrorCode.IO_ERROR, "Error unregistering listener", e);
    }
}

---

From source file:com.frannciscocabral.ufs.rabbitmq.Send.java

public static void main(String[] argv) throws java.io.IOException, TimeoutException {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

    channel.queueDeclare(QUEUE_NAME, false, false, false, null);
    String message = "Hello World!";
    channel.basicPublish("", QUEUE_NAME, null, message.getBytes());
    System.out.println(" [x] Sent '" + message + "'");

    channel.close();
    connection.close();// ww  w.  ja  v a 2 s . co  m
}

---

From source file:com.github.dann.wspusher.common.util.RabbitMQResourceUtils.java

License:Apache License

public static void closeQuietly(Channel channel) {
    if (channel != null) {
        try {//ww  w. java  2  s.c om
            channel.close();
        } catch (IOException e) {
            // ignore
        }
    }
}

---

From source file:com.github.hexsmith.rabbitmq.producer.MessageProducer.java

License:Open Source License

public boolean sendMessage(String message) {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("127.0.0.7");
    Connection connection = null;
    Channel channel = null;
    try {/*from w w  w .  j a v a  2 s.  com*/
        connection = factory.newConnection();
        channel = connection.createChannel();
        channel.queueDeclare(QUEUE_NAME, false, false, false, null);
        channel.basicPublish("", QUEUE_NAME, null, message.getBytes());
        logger.info("send message = {}", message);
        channel.close();
        connection.close();
    } catch (IOException | TimeoutException e) {
        logger.error("send message failed!,exception message is {}", e);
        return false;
    }
    return true;
}

---

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