def _on_request(self, message):
log = logging.getLogger(__name__)
try:
task = task_pb2.Task()
try:
# `body` is of unicode type, but we need str type for
# `ParseFromString()` to work. It seems to work.
# Maybe kombu estimate that, without any information,
# the body should be something as json, and thus a
# unicode string. On the c++ side, I didn't manage to
# find a way to give a content-type or something like
# that.
body = str(message.payload)
task.ParseFromString(body)
except DecodeError as e:
log.warn('invalid protobuf: {}'.format(str(e)))
return
log.info('Getting a full feed publication request', extra={'task': task})
if task.action != task_pb2.LOAD_REALTIME or not task.load_realtime:
return
start_datetime = datetime.utcnow()
begin_date = None
end_date = None
if hasattr(task.load_realtime, "begin_date"):
if task.load_realtime.begin_date:
begin_date = str_to_date(task.load_realtime.begin_date)
if hasattr(task.load_realtime, "end_date"):
if task.load_realtime.end_date:
end_date = str_to_date(task.load_realtime.end_date)
feed = convert_to_gtfsrt(TripUpdate.find_by_contributor_period(task.load_realtime.contributors,
begin_date,
end_date),
gtfs_realtime_pb2.FeedHeader.FULL_DATASET)
feed_str = feed.SerializeToString()
log.info('Starting of full feed publication {}, {}'.format(len(feed_str), task), extra={'size': len(feed_str), 'task': task})
# http://docs.celeryproject.org/projects/kombu/en/latest/userguide/producers.html#bypassing-routing-by-using-the-anon-exchange
self.producer.publish(feed_str,
routing_key=task.load_realtime.queue_name,
retry=True,
retry_policy={
'interval_start': 0, # First retry immediately,
'interval_step': 2, # then increase by 2s for every retry.
'interval_max': 10, # but don't exceed 10s between retries.
'max_retries': self.max_retries, # give up after 10 (by default) tries.
})
duration = (datetime.utcnow() - start_datetime).total_seconds()
log.info('End of full feed publication', extra={'duration': duration, 'task': task})
record_call('Full feed publication', size=len(feed_str), routing_key=task.load_realtime.queue_name,
duration=duration, trip_update_count=len(feed.entity),
contributor=task.load_realtime.contributors)
finally:
db.session.remove()
def test_realtime_loader_valid_protobuf(setup_database):
task = task_pb2.Task()
task.action = task_pb2.LOAD_REALTIME
task.load_realtime.queue_name = "kirin_load_realtime"
task.load_realtime.contributors.append(COTS_CONTRIBUTOR_ID)
task.load_realtime.begin_date = "2015-11-04"
task.load_realtime.end_date = "2015-11-04"
message = Message()
message.body = task.SerializeToString()
rt_loader = RTReloader("hostname", "queue", "exchange", 10)
with app.app_context():
resp_rt = rt_loader._on_request(message)
assert len(resp_rt) == 6
assert [COTS_CONTRIBUTOR_ID] == resp_rt["contributors"]
assert task.load_realtime.queue_name == resp_rt["routing_key"]
assert 0 == resp_rt["output_trip_update_count"]
assert 46 == resp_rt["output_feed_size"]
# currently: error while trying to publish the message
assert "'str' object has no attribute 'clone'" == resp_rt["reason"]
assert resp_rt["duration"] > 0
def callback(body, message):
try:
task = task_pb2.Task()
try:
# `body` is of unicode type, but we need str type for
# `ParseFromString()` to work. It seems to work.
# Maybe kombu estimate that, without any information,
# the body should be something as json, and thus a
# unicode string. On the c++ side, I didn't manage to
# find a way to give a content-type or something like
# that.
body = str(body)
task.ParseFromString(body)
except DecodeError as e:
log.warn('invalid protobuf: {}'.format(str(e)))
return
log.info('getting a request: {}'.format(task))
if task.action != task_pb2.LOAD_REALTIME or not task.load_realtime:
return
begin_date = None
end_date = None
if hasattr(task.load_realtime, "begin_date"):
if task.load_realtime.begin_date:
begin_date = str_to_date(task.load_realtime.begin_date)
if hasattr(task.load_realtime, "end_date"):
if task.load_realtime.end_date:
end_date = str_to_date(task.load_realtime.end_date)
feed = convert_to_gtfsrt(TripUpdate.find_by_contributor_period(task.load_realtime.contributors,
begin_date,
end_date),
gtfs_realtime_pb2.FeedHeader.FULL_DATASET)
with self._get_producer() as producer:
log.info('Publishing full feed...')
producer.publish(feed.SerializeToString(), routing_key=task.load_realtime.queue_name)
log.info('Full feed published.')
finally:
db.session.remove()
def _on_request(self, message):
log = logging.getLogger(__name__)
status = "OK"
log_dict = {}
start_datetime = datetime.utcnow()
try:
task = task_pb2.Task()
try:
# `body` is a string, but we need binary type for
# `ParseFromString()` to work. It seems to work.
body = bytes(message.payload, encoding="utf-8")
task.ParseFromString(body)
except DecodeError as e:
log.warning("invalid protobuf: {}".format(str(e)))
return
log.info("Getting a full feed publication request",
extra={"task": task})
if task.action != task_pb2.LOAD_REALTIME or not task.load_realtime:
return
begin_date = None
end_date = None
if hasattr(task.load_realtime,
"begin_date") and task.load_realtime.begin_date:
begin_date = str_to_date(task.load_realtime.begin_date)
if hasattr(task.load_realtime,
"end_date") and task.load_realtime.end_date:
end_date = str_to_date(task.load_realtime.end_date)
feed = convert_to_gtfsrt(
TripUpdate.find_by_contributor_period(
task.load_realtime.contributors, begin_date, end_date),
gtfs_realtime_pb2.FeedHeader.FULL_DATASET,
)
feed_str = feed.SerializeToString()
log_dict.update({
"contributors": task.load_realtime.contributors,
"routing_key": task.load_realtime.queue_name,
"output_trip_update_count": len(feed.entity),
"output_feed_size": sys.getsizeof(feed_str),
})
log.info(
"Starting of full feed publication {}, {}".format(
len(feed_str), task),
extra={
"size": len(feed_str),
"task": task
},
)
record_custom_parameter("contributors",
task.load_realtime.contributors)
# http://docs.celeryproject.org/projects/kombu/en/latest/userguide/producers.html#bypassing-routing-by-using-the-anon-exchange
self.producer.publish(
feed_str,
routing_key=task.load_realtime.queue_name,
retry=True,
retry_policy={
"interval_start": 0, # First retry immediately,
"interval_step": 2, # then increase by 2s for every retry.
"interval_max":
10, # but don't exceed 10s between retries.
"max_retries":
self.max_retries, # give up after 10 (by default) tries.
},
)
except Exception as e:
status = "failure"
log_dict.update({"reason": str(e)})
record_custom_parameter("reason", str(e))
finally:
duration = (datetime.utcnow() - start_datetime).total_seconds()
log_dict.update({"duration": duration})
record_call("kirin_reload_info", status, **log_dict)
log.info("End of full feed publication",
extra={
"duration": duration,
"task": task
})
db.session.remove()
return log_dict