Example usage for com.rabbitmq.client Channel confirmSelect

List of usage examples for com.rabbitmq.client Channel confirmSelect

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Introduction

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

Prototype

Confirm.SelectOk confirmSelect() throws IOException;

Source Link

Document

Enables publisher acknowledgements on this channel.

Usage

From source file:acromusashi.stream.component.rabbitmq.CachingConnectionFactory.java

License:Apache License

private synchronized Channel createBareChannel(boolean transactional) {
    // if attempt to fail back, close the caching connection ant channels
    // in this time, others thread may throw exception for the connection loss.
    boolean hasCachedConnection = this.connection != null;
    boolean shouldFailback = shouldFailback();
    if (hasCachedConnection && shouldFailback) {
        if (this.logger.isDebugEnabled()) {
            this.logger.debug("Closing cached Rabbit Connection to failback");
        }/*from  w  w  w.  ja  v a 2 s. com*/
        this.connection.destroy();
    }

    if (hasCachedConnection == false || this.connection.isOpen() == false) {
        // Use createConnection here not doCreateConnection so that the old one is properly disposed
        createConnection();
    }
    Channel channel = this.connection.createBareChannel(transactional);
    if (this.publisherConfirms) {
        try {
            channel.confirmSelect();
        } catch (IOException e) {
            this.logger.error("Could not configure the channel to receive publisher confirms", e);
        }
    }
    if (this.publisherConfirms || this.publisherReturns) {
        if (!(channel instanceof PublisherCallbackChannelImpl)) {
            channel = new PublisherCallbackChannelImpl(channel);
        }
    }
    return channel;
}

From source file:com.avricot.avrilog.rabbitmq.HaConnectionFactory.java

License:Apache License

/**
 * Create a new {@link Channel} from the current connection.
 *
 * @param confirm true if the channel is selected as confirmed (so that we can
 *                wait brocker ack)/*from w w w. ja va 2 s  .c  o m*/
 */
public Channel createChannel(final boolean confirm) throws RabbitMQException {
    if (reconnectionInProgress.get()) {
        throw new RabbitMQReconnectionException();
    }
    try {
        Channel channel = connection.createChannel();
        if (channel == null) {
            throw new RabbitMQException(
                    "Can't create the channel (get a null channel from the connection). Your application is probably requesting too many channel. Try using/not using localthread.");
        }
        if (confirm) {
            channel.confirmSelect();
        }
        return channel;
    } catch (IOException e) {
        throw new RabbitMQException("Can't create the channel.", e);
    }
}

From source file:info.pancancer.arch3.utils.Utilities.java

License:Open Source License

/**
 * Clears database state and known queues for testing.
 *
 * @param settings//  w w  w  .  jav a 2s .c o m
 * @throws IOException
 * @throws java.util.concurrent.TimeoutException
 */
public static void clearState(HierarchicalINIConfiguration settings) throws IOException, TimeoutException {
    File configFile = FileUtils.getFile("src", "test", "resources", "config");
    HierarchicalINIConfiguration parseConfig = Utilities.parseConfig(configFile.getAbsolutePath());
    PostgreSQL postgres = new PostgreSQL(parseConfig);
    // clean up the database
    postgres.clearDatabase();

    String server = settings.getString(Constants.RABBIT_HOST);
    String user = settings.getString(Constants.RABBIT_USERNAME);
    String pass = settings.getString(Constants.RABBIT_PASSWORD);

    Channel channel;

    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost(server);
    factory.setUsername(user);
    factory.setPassword(pass);
    factory.setAutomaticRecoveryEnabled(true);
    Connection connection = factory.newConnection();
    channel = connection.createChannel();
    channel.basicQos(1);
    channel.confirmSelect();

    String prefix = settings.getString(Constants.RABBIT_QUEUE_NAME);
    String[] queues = { prefix + "_jobs", prefix + "_orders", prefix + "_vms", prefix + "_for_CleanupJobs",
            prefix + "_for_CleanupVMs" };
    for (String queue : queues) {
        try {
            channel.queueDelete(queue);
        } catch (IOException e) {
            Log.info("Could not delete " + queue);
        }
    }
}

From source file:info.pancancer.arch3.utils.Utilities.java

License:Open Source License

public static Channel setupQueue(HierarchicalINIConfiguration settings, String queue)
        throws IOException, TimeoutException {

    String server = settings.getString(Constants.RABBIT_HOST);
    String user = settings.getString(Constants.RABBIT_USERNAME);
    String pass = settings.getString(Constants.RABBIT_PASSWORD);

    Channel channel = null;

    try {//from w  ww  .j  a va  2s. c o  m

        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost(server);
        factory.setUsername(user);
        factory.setPassword(pass);
        factory.setAutomaticRecoveryEnabled(true);
        Connection connection = factory.newConnection();
        channel = connection.createChannel();
        channel.basicQos(1);
        channel.queueDeclare(queue, true, false, false, null);
        channel.confirmSelect();
        // channel.queueDeclarePassive(queue);

    } catch (IOException | TimeoutException ex) {
        // Logger.getLogger(Master.class.getName()).log(Level.SEVERE, null, ex);
        LOG.error("Error setting up queue connections to queue:" + queue + " on host: " + server
                + "; error is: " + ex.getMessage(), ex);
    }
    return channel;

}

From source file:info.pancancer.arch3.utils.Utilities.java

License:Open Source License

public static Channel setupExchange(HierarchicalINIConfiguration settings, String queue)
        throws IOException, TimeoutException {

    String server = settings.getString(Constants.RABBIT_HOST);
    String user = settings.getString(Constants.RABBIT_USERNAME);
    String pass = settings.getString(Constants.RABBIT_PASSWORD);

    Channel channel = null;

    try {/*from  w w  w.j  a  va 2  s  .c o  m*/

        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost(server);
        factory.setUsername(user);
        factory.setPassword(pass);
        factory.setAutomaticRecoveryEnabled(true);
        Connection connection = factory.newConnection();
        channel = connection.createChannel();
        channel.exchangeDeclare(queue, "fanout", true, false, null);
        channel.confirmSelect();

    } catch (IOException | TimeoutException ex) {
        // Logger.getLogger(Master.class.getName()).log(Level.SEVERE, null, ex);
        LOG.error("Error setting up queue connections: " + ex.getMessage(), ex);
        throw ex;
    }
    return channel;
}

From source file:ms.dew.core.cluster.spi.rabbit.RabbitClusterMQ.java

License:Apache License

/**
 * MQ ??  ?.//from www  .  j  a  v a  2s .  c  om
 * <p>
 * exchange = fanout
 * ??? topic ?
 *
 * @param topic   
 * @param message ?
 * @param confirm ??
 * @return ???rabbit confirm ?????
 */
public boolean doPublish(String topic, String message, boolean confirm) {
    Connection connection = rabbitAdapter.getConnection();
    Channel channel = connection.createChannel(false);
    Object funResult = null;
    try {
        if (confirm) {
            channel.confirmSelect();
        }
        channel.exchangeDeclare(topic, BuiltinExchangeType.FANOUT, true);
        AMQP.BasicProperties properties = new AMQP.BasicProperties("text/plain", null, getMQHeader(topic), 2, 0,
                null, null, null, null, null, null, null, null, null);
        funResult = sendBeforeFun.invoke(topic, "", properties);
        channel.basicPublish(topic, "", properties, message.getBytes());
        if (confirm) {
            try {
                return channel.waitForConfirms();
            } catch (InterruptedException e) {
                Thread.currentThread().interrupt();
                logger.error("[MQ] Rabbit publish error.", e);
                sendErrorFun.invoke(e, funResult);
                return false;
            }
        } else {
            return true;
        }
    } catch (IOException e) {
        logger.error("[MQ] Rabbit publish error.", e);
        sendErrorFun.invoke(e, funResult);
        return false;
    } finally {
        try {
            channel.close();
            sendFinishFun.invoke(funResult);
        } catch (IOException | TimeoutException e) {
            logger.error("[MQ] Rabbit publish error.", e);
        }
        connection.close();
    }
}

From source file:ms.dew.core.cluster.spi.rabbit.RabbitClusterMQ.java

License:Apache License

/**
 * MQ ??  ./*from   w  w  w .  j a  v  a 2s  .c  o m*/
 * <p>
 * exchange = fanout
 *
 * @param address ?
 * @param message ?
 * @param confirm ??
 * @return ??rabbit confirm ?????
 */
public boolean doRequest(String address, String message, boolean confirm) {
    Connection connection = rabbitAdapter.getConnection();
    Channel channel = connection.createChannel(false);
    Object funResult = null;
    try {
        if (confirm) {
            channel.confirmSelect();
        }
        channel.queueDeclare(address, true, false, false, null);
        AMQP.BasicProperties properties = new AMQP.BasicProperties("text/plain", null, getMQHeader(address), 2,
                0, null, null, null, null, null, null, null, null, null);
        funResult = sendBeforeFun.invoke("", address, properties);
        channel.basicPublish("", address, properties, message.getBytes());
        if (confirm) {
            try {
                return channel.waitForConfirms();
            } catch (InterruptedException e) {
                Thread.currentThread().interrupt();
                logger.error("[MQ] Rabbit request error.", e);
                sendErrorFun.invoke(e, funResult);
                return false;
            }
        } else {
            return true;
        }
    } catch (IOException e) {
        logger.error("[MQ] Rabbit request error.", e);
        sendErrorFun.invoke(e, funResult);
        return false;
    } finally {
        try {
            channel.close();
            sendFinishFun.invoke(funResult);
        } catch (IOException | TimeoutException e) {
            logger.error("[MQ] Rabbit request error.", e);
        }
        connection.close();
    }
}

From source file:ms.dew.core.cluster.spi.rabbit.RabbitClusterMQ.java

License:Apache License

/**
 * MQ ??  ?.//from w w  w. j a va  2 s .c o  m
 * <p>
 * exchange = topic
 *
 * @param topic      
 * @param routingKey Key
 * @param queueName  ??
 * @param message    ?
 * @param confirm    ??
 * @return ???rabbit confirm ?????
 */
public boolean publishWithTopic(String topic, String routingKey, String queueName, String message,
        boolean confirm) {
    logger.trace("[MQ] publishWithTopic {}:{}", topic, message);
    Connection connection = rabbitAdapter.getConnection();
    Channel channel = connection.createChannel(false);
    Object funResult = null;
    try {
        if (confirm) {
            channel.confirmSelect();
        }
        channel.queueDeclare(queueName, true, false, false, null);
        channel.exchangeDeclare(topic, BuiltinExchangeType.TOPIC, true);
        AMQP.BasicProperties properties = new AMQP.BasicProperties("text/plain", null, getMQHeader(topic), 2, 0,
                null, null, null, null, null, null, null, null, null);
        funResult = sendBeforeFun.invoke(topic, routingKey, properties);
        channel.basicPublish(topic, routingKey, properties, message.getBytes());
        if (confirm) {
            try {
                return channel.waitForConfirms();
            } catch (InterruptedException e) {
                Thread.currentThread().interrupt();
                logger.error("[MQ] Rabbit publishWithTopic error.", e);
                sendErrorFun.invoke(e, funResult);
                return false;
            }
        } else {
            return true;
        }
    } catch (IOException e) {
        logger.error("[MQ] Rabbit publishWithTopic error.", e);
        sendErrorFun.invoke(e, funResult);
        return false;
    } finally {
        try {
            channel.close();
            sendFinishFun.invoke(funResult);
        } catch (IOException | TimeoutException e) {
            logger.error("[MQ] Rabbit publishWithTopic error.", e);
        }
        connection.close();
    }
}

From source file:net.lshift.accent.AccentConfirmPublisher.java

License:Apache License

@Override
public void channelCreated(Channel c) throws IOException {
    // Enable publisher confirmations on channel
    c.confirmSelect();

    // Add listeners to allow us to process publisher acks
    c.addConfirmListener(feedbackListener);
}

From source file:org.axonframework.amqp.eventhandling.RabbitMQBenchmark.java

License:Apache License

public static void main(String[] args) throws IOException, InterruptedException, TimeoutException {
    final Connection connection = new ConnectionFactory().newConnection();
    final Channel channel = connection.createChannel();
    String queueName = channel.queueDeclare().getQueue();
    execute("Transactional and Channel pooling", createChannelPoolSharingThreads(connection, queueName));
    queueName = refreshQueue(channel, queueName);
    execute("Transactional, new Channel per tx", createChannelCreatingThreads(connection, queueName, true));
    queueName = refreshQueue(channel, queueName);
    execute("Non-transactional, new Channel per tx",
            createChannelCreatingThreads(connection, queueName, false));
    queueName = refreshQueue(channel, queueName);
    execute("Non-transactional, single Channel", createChannelSharingThreads(connection, queueName));
    channel.confirmSelect();
    connection.close();//from  ww  w .jav  a2  s.c o  m
}