def join_consumer_pool(self,
callback,
pool_name,
topic,
exchange_name=None,
ack_on_error=True):
"""Register as a member of a group of consumers for a given topic from
the specified exchange.
Exactly one member of a given pool will receive each message.
A message will be delivered to multiple pools, if more than
one is created.
"""
callback_wrapper = rpc_amqp.CallbackWrapper(
conf=self.conf,
callback=callback,
connection_pool=rpc_amqp.get_connection_pool(
self.conf, Connection),
wait_for_consumers=not ack_on_error)
self.proxy_callbacks.append(callback_wrapper)
self.declare_topic_consumer(
queue_name=pool_name,
topic=topic,
exchange_name=exchange_name,
callback=callback_wrapper,
ack_on_error=ack_on_error,
)
def join_consumer_pool(self,
callback,
pool_name,
topic,
exchange_name=None):
"""Register as a member of a group of consumers for a given topic from
the specified exchange.
Exactly one member of a given pool will receive each message.
A message will be delivered to multiple pools, if more than
one is created.
"""
callback_wrapper = rpc_amqp.CallbackWrapper(
conf=self.conf,
callback=callback,
connection_pool=rpc_amqp.get_connection_pool(
self.conf, Connection),
)
self.proxy_callbacks.append(callback_wrapper)
consumer = TopicConsumer(conf=self.conf,
session=self.session,
topic=topic,
callback=callback_wrapper,
name=pool_name,
exchange_name=exchange_name)
self._register_consumer(consumer)
return consumer