Source code for ceilometer.event.endpoint
# Copyright 2012-2014 eNovance <licensing@enovance.com>
#
# 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.
from oslo_config import cfg
from oslo_log import log
import oslo_messaging
from stevedore import extension
from ceilometer.event import converter as event_converter
from ceilometer.i18n import _LE
from ceilometer import messaging
LOG = log.getLogger(__name__)
[docs]class EventsNotificationEndpoint(object):
def __init__(self, manager):
super(EventsNotificationEndpoint, self).__init__()
LOG.debug('Loading event definitions')
self.event_converter = event_converter.setup_events(
extension.ExtensionManager(
namespace='ceilometer.event.trait_plugin'))
self.manager = manager
[docs] def info(self, notifications):
"""Convert message at info level to Ceilometer Event.
:param notifications: list of notifications
"""
return self.process_notification('info', notifications)
[docs] def error(self, notifications):
"""Convert message at error level to Ceilometer Event.
:param notifications: list of notifications
"""
return self.process_notification('error', notifications)
[docs] def process_notification(self, priority, notifications):
for notification in notifications:
# NOTE: the rpc layer currently rips out the notification
# delivery_info, which is critical to determining the
# source of the notification. This will have to get added back
# later.
notification = messaging.convert_to_old_notification_format(
priority, notification)
try:
event = self.event_converter.to_event(notification)
if event is not None:
with self.manager.publisher() as p:
p(event)
except Exception:
if not cfg.CONF.notification.ack_on_event_error:
return oslo_messaging.NotificationResult.REQUEUE
LOG.error(_LE('Fail to process a notification'), exc_info=True)
return oslo_messaging.NotificationResult.HANDLED