mercredi 2 novembre 2016

Which is the easiest way to extract queue from pika

Ok people. I'm bit rusty with Python so please go easy on me. I have a RabbitMQ server that I connect to, and I'm building a simple interface for sanity check, and I'm using pika.

My code looks very simple:

class RabbitMQConnector(object):
    """ Class that instantiates the connection, and the test interface for
    the RabbitMQ services.
    """

    def __init__(self):
        self._credentials = pika.PlainCredentials(Config.USERNAME, Config.PASSWORD)
        log.info("Credentials are being set")
        self._parameters = pika.ConnectionParameters(Config.HOST, credentials=self._credentials)
        log.info("Connection parameters are being set")
        self._connection = pika.BlockingConnection(self._parameters)
        self._channel = self._connection.channel()
        # We pass an empty string into the queue so we can get the random queue name
        self._replyQueue = self._channel.queue_declare(queue='')
        log.info("Reply queue name has been initialized %s" % self._replyQueue)
        log.info("Connection initialized")
        Config.time.sleep(5)
        log.info("[x] System is fully initialized, and ready to accept RabbitMQ connections")

    def connect(self):
        pass

    def disconnect(self):
        pass

But when I call this method:

log.info("Reply queue name has been initialized %s" % self._replyQueue)

My reply gets like:

Reply queue name has been initialized <METHOD(['channel_number=1', 'frame_type=1', "method=<Queue.DeclareOk(['consumer_count=0', 'message_count=0', 'queue=amq.gen-8GVTfmr8noMB5slpXnFRHQ'])>"])>

And the only thing I want to display to user is actually this queue

queue=amq.gen-8GVTfmr8noMB5slpXnFRHQ

What would be the easiest way to extract this variable from the above method? Thank you.

p/s: log is just an alias for logger, whilst Config.USERNAME and Config.PASSWORD are just 'user' and 'localhost'

Aucun commentaire:

Enregistrer un commentaire