def poll_match_history_queue():
"""Celery task that handles the constant background loading of matches.
This task will first empty the MatchHistoryQueue, or look for more matches if nothing in queue.
If there is no work at all, it will refresh old MatchDetails according to staleness.
Returns True if work was handled; False if there was an error; None if no work to be done.
"""
lock_id = "poll_match_history_queue_lock"
success_value = True
acquire_lock = lambda: cache.add(lock_id, "true", LOCK_EXPIRE)
release_lock = lambda: cache.delete(lock_id)
if acquire_lock():
logger.debug("Queue locked.")
queue_object = None
force_refresh = False
try:
if cache.get(lock_id + '_time') == None:
GetMatchHistory()
logger.debug("Ran out of work. Attempting more from history..")
cache.set(lock_id + '_time', True, LOCK_EXPIRE)
else:
try:
queue_object = MatchHistoryQueue.objects.latest()
logger.debug("Got work from MatchHistoryQueue")
except ObjectDoesNotExist:
queue_object = None
if queue_object == None:
queue_object = MatchDetails.get_refresh()
if queue_object:
force_refresh = True
logger.debug("Got work from stale MatchDetails.")
if queue_object:
logger.debug("Attempting to retreive match_id: " +
str(queue_object.pk))
GetMatchDetails(queue_object.pk, force_refresh=force_refresh)
logger.debug("Retreived and set match_id: " +
str(queue_object.pk))
else:
logger.debug("No work to be done. Sleeping.")
success_value = None
except Exception, e:
success_value = False
logger.error(traceback.format_exc())
logger.error("Error creating object.")
finally:
def poll_match_history_queue():
"""Celery task that handles the constant background loading of matches.
This task will first empty the MatchHistoryQueue, or look for more matches if nothing in queue.
If there is no work at all, it will refresh old MatchDetails according to staleness.
Returns True if work was handled; False if there was an error; None if no work to be done.
"""
lock_id = "poll_match_history_queue_lock"
success_value = True
acquire_lock = lambda: cache.add(lock_id, "true", LOCK_EXPIRE)
release_lock = lambda: cache.delete(lock_id)
if acquire_lock():
logger.debug("Queue locked.")
queue_object = None
force_refresh = False
try:
if cache.get(lock_id + '_time') == None:
GetMatchHistory()
logger.debug("Ran out of work. Attempting more from history..")
cache.set(lock_id + '_time', True, LOCK_EXPIRE)
else:
try:
queue_object = MatchHistoryQueue.objects.latest()
logger.debug("Got work from MatchHistoryQueue")
except ObjectDoesNotExist:
queue_object = None
if queue_object == None:
queue_object = MatchDetails.get_refresh()
if queue_object:
force_refresh = True
logger.debug("Got work from stale MatchDetails.")
if queue_object:
logger.debug("Attempting to retreive match_id: " + str(queue_object.pk))
GetMatchDetails(queue_object.pk, force_refresh=force_refresh)
logger.debug("Retreived and set match_id: " + str(queue_object.pk))
else:
logger.debug("No work to be done. Sleeping.")
success_value = None
except Exception, e:
success_value = False
logger.error(traceback.format_exc())
logger.error("Error creating object.")
finally:
