aodh/aodh/event.py
Hanxi 64011bb0da remove default=None for config options
In the cfg module default=None is set as the default value.

Change-Id: I5e19bf14514738f426fd72d25ff3c3a951398c24
Closes-bug: #1323975
2016-08-23 00:39:38 +08:00

71 lines
2.4 KiB
Python

#
# Copyright 2015 NEC Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import cotyledon
from oslo_config import cfg
from oslo_log import log
import oslo_messaging
from aodh.evaluator import event
from aodh import messaging
from aodh import storage
LOG = log.getLogger(__name__)
OPTS = [
cfg.StrOpt('event_alarm_topic',
default='alarm.all',
deprecated_group='DEFAULT',
help='The topic that aodh uses for event alarm evaluation.'),
cfg.IntOpt('batch_size',
default=1,
help='Number of notification messages to wait before '
'dispatching them.'),
cfg.IntOpt('batch_timeout',
help='Number of seconds to wait before dispatching samples '
'when batch_size is not reached (None means indefinitely).'),
]
class EventAlarmEndpoint(object):
def __init__(self, evaluator):
self.evaluator = evaluator
def sample(self, notifications):
LOG.debug('Received %s messages in batch.', len(notifications))
for notification in notifications:
self.evaluator.evaluate_events(notification['payload'])
class EventAlarmEvaluationService(cotyledon.Service):
def __init__(self, worker_id, conf):
super(EventAlarmEvaluationService, self).__init__(worker_id)
self.conf = conf
self.storage_conn = storage.get_connection_from_config(self.conf)
self.evaluator = event.EventAlarmEvaluator(self.conf)
self.listener = messaging.get_batch_notification_listener(
messaging.get_transport(self.conf),
[oslo_messaging.Target(
topic=self.conf.listener.event_alarm_topic)],
[EventAlarmEndpoint(self.evaluator)], False,
self.conf.listener.batch_size,
self.conf.listener.batch_timeout)
self.listener.start()
def terminate(self):
self.listener.stop()
self.listener.wait()