def _add_event_listener(self, exchange, topic, events):
"""Add or update event listener for specified exchange, topic.
Create a new event listener for the event trigger if no existing
listener relates to (exchange, topic).
Or, restart existing event listener with updated events.
"""
key = (exchange, topic)
if key in self.exchange_topic_listener_map:
listener = self.exchange_topic_listener_map[key]
listener.stop()
listener.wait()
endpoint = self._get_endpoint_cls(events)(self)
LOG.debug("Starting to listen to AMQP. exchange: %s, topic: %s",
exchange, topic)
listener = mistral_messaging.start_listener(
CONF,
exchange,
topic,
[endpoint]
)
self.exchange_topic_listener_map[key] = listener
def _add_event_listener(self, exchange, topic, events):
"""Add or update event listener for specified exchange, topic.
Create a new event listener for the event trigger if no existing
listener relates to (exchange, topic).
Or, restart existing event listener with updated events.
"""
key = (exchange, topic)
if key in self.exchange_topic_listener_map:
listener = self.exchange_topic_listener_map[key]
listener.stop()
listener.wait()
endpoint = self._get_endpoint_cls(events)(self)
LOG.debug("Starting to listen to AMQP. exchange: %s, topic: %s",
exchange, topic)
listener = mistral_messaging.start_listener(
CONF,
exchange,
topic,
[endpoint]
)
self.exchange_topic_listener_map[key] = listener