Create  socket and bind

def _bind(self):
        """
           Create  socket and bind
        """

        credentials = pika.PlainCredentials(self.user, self.password)
        params = pika.ConnectionParameters(credentials=credentials,
                                           host=self.server,
                                           virtual_host=self.vhost,
                                           port=self.port)

        self.connection = pika.BlockingConnection(params)
        self.channel = self.connection.channel()

        # NOTE : PIKA version uses 'exchange_type' instead of 'type'

        self.channel.exchange_declare(exchange=self.topic_exchange,
                                      exchange_type="topic")