Example usage for com.rabbitmq.client ShutdownListener ShutdownListener

Introduction

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

Prototype

ShutdownListener

Source Link

Usage

From source file:org.apache.airavata.messaging.core.impl.RabbitMQConsumer.java

License:Apache License

private void createConnection() throws AiravataException {
    try {//w  ww  . jav  a  2  s. co m
        ConnectionFactory connectionFactory = new ConnectionFactory();
        connectionFactory.setUri(url);
        connection = connectionFactory.newConnection();
        connection.addShutdownListener(new ShutdownListener() {
            public void shutdownCompleted(ShutdownSignalException cause) {
            }
        });
        log.info("connected to rabbitmq: " + connection + " for " + exchangeName);

        channel = connection.createChannel();
        channel.exchangeDeclare(exchangeName, "topic", false);

    } catch (Exception e) {
        String msg = "could not open channel for exchange " + exchangeName;
        log.error(msg);
        throw new AiravataException(msg, e);
    }
}

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From source file:org.apache.airavata.messaging.core.impl.RabbitMQProcessConsumer.java

License:Apache License

private void createConnection() throws AiravataException {
    try {//  w ww  .  ja v a 2  s  .  co m
        ConnectionFactory connectionFactory = new ConnectionFactory();
        connectionFactory.setUri(url);
        connection = connectionFactory.newConnection();
        connection.addShutdownListener(new ShutdownListener() {
            public void shutdownCompleted(ShutdownSignalException cause) {
            }
        });
        log.info("connected to rabbitmq: " + connection + " for default");

        channel = connection.createChannel();
        //            channel.exchangeDeclare(taskLaunchExchangeName, "fanout");

    } catch (Exception e) {
        String msg = "could not open channel for exchange default";
        log.error(msg);
        throw new AiravataException(msg, e);
    }
}

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From source file:org.apache.airavata.messaging.core.impl.RabbitMQProcessLaunchConsumer.java

License:Apache License

private void createConnection() throws AiravataException {
    try {//from   w w w .  j a va  2s  .  co m
        ConnectionFactory connectionFactory = new ConnectionFactory();
        connectionFactory.setUri(url);
        connectionFactory.setAutomaticRecoveryEnabled(true);
        connection = connectionFactory.newConnection();
        connection.addShutdownListener(new ShutdownListener() {
            public void shutdownCompleted(ShutdownSignalException cause) {
            }
        });
        log.info("connected to rabbitmq: " + connection + " for " + taskLaunchExchangeName);

        channel = connection.createChannel();
        channel.basicQos(prefetchCount);

        //            channel.exchangeDeclare(taskLaunchExchangeName, "fanout");

    } catch (Exception e) {
        String msg = "could not open channel for exchange " + taskLaunchExchangeName;
        log.error(msg);
        throw new AiravataException(msg, e);
    }
}

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From source file:org.apache.airavata.messaging.core.impl.RabbitMQProducer.java

License:Apache License

private Connection createConnection() throws IOException {
    try {/*from  www . j  a v a 2 s  .c  o m*/
        ConnectionFactory connectionFactory = new ConnectionFactory();
        connectionFactory.setUri(url);
        connectionFactory.setAutomaticRecoveryEnabled(true);
        Connection connection = connectionFactory.newConnection();
        connection.addShutdownListener(new ShutdownListener() {
            public void shutdownCompleted(ShutdownSignalException cause) {
            }
        });
        log.info("connected to rabbitmq: " + connection + " for " + exchangeName);
        return connection;
    } catch (Exception e) {
        log.info("connection failed to rabbitmq: " + connection + " for " + exchangeName);
        return null;
    }
}

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From source file:org.apache.airavata.messaging.core.impl.RabbitMQPublisher.java

License:Apache License

private void connect() throws AiravataException {
    try {//from w w  w .j  a  va  2 s  . c o  m
        ConnectionFactory connectionFactory = new ConnectionFactory();
        connectionFactory.setUri(properties.getBrokerUrl());
        connectionFactory.setAutomaticRecoveryEnabled(properties.isAutoRecoveryEnable());
        connection = connectionFactory.newConnection();
        connection.addShutdownListener(new ShutdownListener() {
            public void shutdownCompleted(ShutdownSignalException cause) {
            }
        });
        log.info("connected to rabbitmq: " + connection + " for " + properties.getExchangeName());
        channel = connection.createChannel();
        if (properties.getPrefetchCount() > 0) {
            channel.basicQos(properties.getPrefetchCount());
        }

        if (properties.getExchangeName() != null) {
            channel.exchangeDeclare(properties.getExchangeName(), properties.getExchangeType(), true); //durable
        }
    } catch (Exception e) {
        String msg = "RabbitMQ connection issue for exchange : " + properties.getExchangeName();
        log.error(msg);
        throw new AiravataException(msg, e);
    }

}

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From source file:org.apache.airavata.messaging.core.impl.RabbitMQStatusConsumer.java

License:Apache License

private void createConnection() throws AiravataException {
    try {//  w  w  w.ja  va 2  s.c  om
        ConnectionFactory connectionFactory = new ConnectionFactory();
        connectionFactory.setUri(url);
        connectionFactory.setAutomaticRecoveryEnabled(true);
        connection = connectionFactory.newConnection();
        connection.addShutdownListener(new ShutdownListener() {
            public void shutdownCompleted(ShutdownSignalException cause) {
            }
        });
        log.info("connected to rabbitmq: " + connection + " for " + exchangeName);

        channel = connection.createChannel();
        channel.basicQos(prefetchCount);
        channel.exchangeDeclare(exchangeName, EXCHANGE_TYPE, false);

    } catch (Exception e) {
        String msg = "could not open channel for exchange " + exchangeName;
        log.error(msg);
        throw new AiravataException(msg, e);
    }
}

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From source file:org.apache.airavata.messaging.core.impl.RabbitMQSubscriber.java

License:Apache License

private void addShutdownListener() {
    connection.addShutdownListener(new ShutdownListener() {
        public void shutdownCompleted(ShutdownSignalException cause) {
            log.error("RabbitMQ connection " + connection + " for " + properties.getExchangeName()
                    + " has been shut down", cause);
        }/* ww  w. jav a  2s. c  o m*/
    });
}

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From source file:org.apache.airavata.messaging.core.impl.RabbitMQTaskLaunchConsumer.java

License:Apache License

private void createConnection() throws AiravataException {
    try {/*from w  w  w  . jav  a 2  s .com*/
        ConnectionFactory connectionFactory = new ConnectionFactory();
        connectionFactory.setUri(url);
        connection = connectionFactory.newConnection();
        connection.addShutdownListener(new ShutdownListener() {
            public void shutdownCompleted(ShutdownSignalException cause) {
            }
        });
        log.info("connected to rabbitmq: " + connection + " for " + taskLaunchExchangeName);

        channel = connection.createChannel();
        //            channel.exchangeDeclare(taskLaunchExchangeName, "fanout");

    } catch (Exception e) {
        String msg = "could not open channel for exchange " + taskLaunchExchangeName;
        log.error(msg);
        throw new AiravataException(msg, e);
    }
}

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From source file:org.apache.druid.firehose.rabbitmq.RabbitMQFirehoseFactory.java

License:Apache License

@Override
public Firehose connect(final InputRowParser<ByteBuffer> firehoseParser, File temporaryDirectory)
        throws IOException {
    ConnectionOptions lyraOptions = new ConnectionOptions(this.connectionFactory);
    Config lyraConfig = new Config().withRecoveryPolicy(new RetryPolicy().withMaxRetries(config.getMaxRetries())
            .withRetryInterval(Duration.seconds(config.getRetryIntervalSeconds()))
            .withMaxDuration(Duration.seconds(config.getMaxDurationSeconds())));

    String queue = config.getQueue();
    String exchange = config.getExchange();
    String routingKey = config.getRoutingKey();

    boolean durable = config.isDurable();
    boolean exclusive = config.isExclusive();
    boolean autoDelete = config.isAutoDelete();

    final Connection connection = Connections.create(lyraOptions, lyraConfig);

    connection.addShutdownListener(new ShutdownListener() {
        @Override//w  w  w . j  a  v  a 2s  . c o m
        public void shutdownCompleted(ShutdownSignalException cause) {
            log.warn(cause, "Connection closed!");
        }
    });

    final Channel channel = connection.createChannel();
    channel.queueDeclare(queue, durable, exclusive, autoDelete, null);
    channel.queueBind(queue, exchange, routingKey);
    channel.addShutdownListener(new ShutdownListener() {
        @Override
        public void shutdownCompleted(ShutdownSignalException cause) {
            log.warn(cause, "Channel closed!");
        }
    });

    // We create a QueueingConsumer that will not auto-acknowledge messages since that
    // happens on commit().
    final QueueingConsumer consumer = new QueueingConsumer(channel);
    channel.basicConsume(queue, false, consumer);

    return new Firehose() {
        /**
         * Storing the latest row as a member variable should be safe since this will only be run
         * by a single thread.
         */
        private InputRow nextRow;

        /**
         * Store the latest delivery tag to be able to commit (acknowledge) the message delivery up to
         * and including this tag. See commit() for more detail.
         */
        private long lastDeliveryTag;

        private Iterator<InputRow> nextIterator = Collections.emptyIterator();

        @Override
        public boolean hasMore() {
            nextRow = null;
            try {
                if (nextIterator.hasNext()) {
                    nextRow = nextIterator.next();
                    return true;
                }
                // Wait for the next delivery. This will block until something is available.
                final Delivery delivery = consumer.nextDelivery();
                if (delivery != null) {
                    lastDeliveryTag = delivery.getEnvelope().getDeliveryTag();
                    nextIterator = firehoseParser.parseBatch(ByteBuffer.wrap(delivery.getBody())).iterator();
                    if (nextIterator.hasNext()) {
                        nextRow = nextIterator.next();
                        // If delivery is non-null, we report that there is something more to process.
                        return true;
                    }
                }
            } catch (InterruptedException e) {
                // A little unclear on how we should handle this.

                // At any rate, we're in an unknown state now so let's log something and return false.
                log.wtf(e, "Got interrupted while waiting for next delivery. Doubt this should ever happen.");
            }

            // This means that delivery is null or we caught the exception above so we report that we have
            // nothing more to process.
            return false;
        }

        @Nullable
        @Override
        public InputRow nextRow() {
            if (nextRow == null) {
                //Just making sure.
                log.wtf("I have nothing in delivery. Method hasMore() should have returned false.");
                return null;
            }

            return nextRow;
        }

        @Override
        public Runnable commit() {
            // This method will be called from the same thread that calls the other methods of
            // this Firehose. However, the returned Runnable will be called by a different thread.
            //
            // It should be (thread) safe to copy the lastDeliveryTag like we do below and then
            // acknowledge values up to and including that value.
            return new Runnable() {
                // Store (copy) the last delivery tag to "become" thread safe.
                final long deliveryTag = lastDeliveryTag;

                @Override
                public void run() {
                    try {
                        log.info("Acknowledging delivery of messages up to tag: " + deliveryTag);

                        // Acknowledge all messages up to and including the stored delivery tag.
                        channel.basicAck(deliveryTag, true);
                    } catch (IOException e) {
                        log.error(e, "Unable to acknowledge message reception to message queue.");
                    }
                }
            };
        }

        @Override
        public void close() throws IOException {
            log.info("Closing connection to RabbitMQ");
            channel.close();
            connection.close();
        }
    };
}

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From source file:org.graylog2.inputs.amqp.Consumer.java

License:Open Source License

public void connect() throws IOException {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost(hostname);/*from w  ww  . ja v  a 2s.  c o m*/
    factory.setPort(port);

    // Authenticate?
    if (username != null && !username.isEmpty() && password != null && !password.isEmpty()) {
        factory.setUsername(username);
        factory.setPassword(password);
    }

    connection = factory.newConnection();
    channel = connection.createChannel();

    if (prefetchCount > 0) {
        channel.basicQos(prefetchCount);

        LOG.info("AMQP prefetch count overriden to <{}>.", prefetchCount);
    }

    connection.addShutdownListener(new ShutdownListener() {
        @Override
        public void shutdownCompleted(ShutdownSignalException cause) {
            while (true) {
                try {
                    LOG.error("AMQP connection lost! Trying reconnect in 1 second.");

                    Thread.sleep(1000);

                    connect();

                    LOG.info("Connected! Re-starting consumer.");

                    run();

                    LOG.info("Consumer running.");
                    break;
                } catch (IOException e) {
                    LOG.error("Could not re-connect to AMQP broker.", e);
                } catch (InterruptedException ignored) {
                }
            }
        }
    });
}

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