Examples with ShutdownSignalException com.rabbitmq.client.ShutdownSignalException used on opensource projects

Example 16 with ShutdownSignalException

use of com.rabbitmq.client.ShutdownSignalException in project microservices by pwillhan.

the class RequestReceiver method receive.

public void receive() {
    if (channel == null) {
        initialize();
    }
    String message = null;
    try {
        channel.queueDeclare(REQUEST_QUEUE, false, false, false, null);
        QueueingConsumer consumer = new QueueingConsumer(channel);
        channel.basicConsume(REQUEST_QUEUE, true, consumer);
        QueueingConsumer.Delivery delivery = consumer.nextDelivery();
        message = new String(delivery.getBody());
        LOGGER.info("Request received: " + message);
        // do something with the request message ...
        BasicProperties properties = delivery.getProperties();
        if (properties != null) {
            AMQP.BasicProperties amqpProps = new AMQP.BasicProperties();
            amqpProps = amqpProps.builder().correlationId(String.valueOf(properties.getCorrelationId())).build();
            channel.basicPublish(DEFAULT_QUEUE, properties.getReplyTo(), amqpProps, "Response message.".getBytes());
        } else {
            LOGGER.warn("Cannot determine response destination for message.");
        }
    } catch (IOException e) {
        LOGGER.error(e.getMessage(), e);
    } catch (ShutdownSignalException e) {
        LOGGER.error(e.getMessage(), e);
    } catch (ConsumerCancelledException e) {
        LOGGER.error(e.getMessage(), e);
    } catch (InterruptedException e) {
        LOGGER.error(e.getMessage(), e);
    }
}

Example 17 with ShutdownSignalException

use of com.rabbitmq.client.ShutdownSignalException in project microservices by pwillhan.

the class ClusterReceiver method receive.

public String receive(Address... hosts) {
    if (channel == null) {
        initialize(hosts);
    }
    String message = null;
    try {
        channel.queueDeclare(QUEUE_NAME, false, false, false, null);
        QueueingConsumer consumer = new QueueingConsumer(channel);
        channel.basicConsume(QUEUE_NAME, true, consumer);
        QueueingConsumer.Delivery delivery = consumer.nextDelivery();
        message = new String(delivery.getBody());
        LOGGER.info("Message received: " + message);
        return message;
    } catch (IOException e) {
        LOGGER.error(e.getMessage(), e);
    } catch (ShutdownSignalException e) {
        LOGGER.error(e.getMessage(), e);
    } catch (ConsumerCancelledException e) {
        LOGGER.error(e.getMessage(), e);
    } catch (InterruptedException e) {
        LOGGER.error(e.getMessage(), e);
    }
    return message;
}

Example 18 with ShutdownSignalException

use of com.rabbitmq.client.ShutdownSignalException in project microservices by pwillhan.

the class TransactionalReceiver method receive.

public void receive() {
    Connection connection = null;
    Channel channel = null;
    try {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        connection = factory.newConnection();
        channel = connection.createChannel();
        QueueingConsumer consumer = new QueueingConsumer(channel);
        channel.basicConsume(REQUEST_QUEUE, false, consumer);
        QueueingConsumer.Delivery delivery = consumer.nextDelivery();
        String message = new String(delivery.getBody());
        LOGGER.info("Request received: " + message);
        channel.txSelect();
        channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
        channel.txCommit();
    } catch (IOException e) {
        LOGGER.error(e.getMessage(), e);
        if (channel != null) {
            try {
                channel.txRollback();
            } catch (IOException re) {
                LOGGER.error("Rollback failed: " + re.getMessage(), re);
            }
        }
    } catch (ShutdownSignalException e) {
        LOGGER.error(e.getMessage(), e);
    } catch (ConsumerCancelledException e) {
        LOGGER.error(e.getMessage(), e);
    } catch (InterruptedException e) {
        LOGGER.error(e.getMessage(), e);
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (IOException e) {
                LOGGER.warn("Failed to close connection: " + e.getMessage(), e);
            }
        }
    }
}

Example 19 with ShutdownSignalException

use of com.rabbitmq.client.ShutdownSignalException in project microservices by pwillhan.

the class Sender method waitForResponse.

public String waitForResponse(final String correlationId) {
    QueueingConsumer consumer = new QueueingConsumer(channel);
    String result = null;
    try {
        channel.basicConsume(RESPONSE_QUEUE, true, consumer);
        QueueingConsumer.Delivery delivery = consumer.nextDelivery(3000);
        String message = new String(delivery.getBody());
        if (delivery.getProperties() != null) {
            String msgCorrelationId = delivery.getProperties().getCorrelationId();
            if (!correlationId.equals(msgCorrelationId)) {
                LOGGER.warn("Received response of another request.");
            } else {
                result = message;
            }
        }
        LOGGER.info("Message received: " + message);
    } catch (IOException e) {
        LOGGER.error(e.getMessage(), e);
    } catch (ShutdownSignalException e) {
        LOGGER.error(e.getMessage(), e);
    } catch (ConsumerCancelledException e) {
        LOGGER.error(e.getMessage(), e);
    } catch (InterruptedException e) {
        LOGGER.error(e.getMessage(), e);
    }
    return result;
}

Example 20 with ShutdownSignalException

use of com.rabbitmq.client.ShutdownSignalException in project microservices by pwillhan.

the class PublishSubscribeReceiver method receive.

public String receive(String queue) {
    if (channel == null) {
        initialize();
    }
    String message = null;
    try {
        channel.exchangeDeclare(EXCHANGE_NAME, "fanout");
        channel.queueDeclare(queue, false, false, false, null);
        channel.queueBind(queue, EXCHANGE_NAME, "");
        QueueingConsumer consumer = new QueueingConsumer(channel);
        channel.basicConsume(queue, true, consumer);
        QueueingConsumer.Delivery delivery = consumer.nextDelivery();
        message = new String(delivery.getBody());
        LOGGER.info("Message received: " + message);
        return message;
    } catch (IOException e) {
        LOGGER.error(e.getMessage(), e);
    } catch (ShutdownSignalException e) {
        LOGGER.error(e.getMessage(), e);
    } catch (ConsumerCancelledException e) {
        LOGGER.error(e.getMessage(), e);
    } catch (InterruptedException e) {
        LOGGER.error(e.getMessage(), e);
    }
    return message;
}