Handle user events Redis not working in tutorial
Also does some basic restyling Fixes #1586
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6 changed files with 169 additions and 162 deletions
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@ -5,6 +5,9 @@ import logging
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logger = logging.getLogger(__name__)
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class CannotReadUserEventsException(Exception):
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""" Exception raised if user events cannot be read. """
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class UserEventBuilder(object):
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"""
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Defines a helper class for constructing UserEvent and UserEventListener
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@ -87,9 +90,13 @@ class UserEventListener(object):
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def __init__(self, redis_config, username, events=set([])):
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channels = [self._user_event_key(username, e) for e in events]
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self._redis = redis.StrictRedis(socket_connect_timeout=5, **redis_config)
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self._pubsub = self._redis.pubsub()
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self._pubsub.subscribe(channels)
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try:
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self._redis = redis.StrictRedis(socket_connect_timeout=5, **redis_config)
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self._pubsub = self._redis.pubsub()
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self._pubsub.subscribe(channels)
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except redis.RedisError as re:
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logger.exception('Could not reach user events redis: %s', re)
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raise CannotReadUserEventsException
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@staticmethod
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def _user_event_key(username, event_id):
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