75 lines
2.9 KiB
Python
75 lines
2.9 KiB
Python
#
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# Copyright 2012-2014 eNovance <licensing@enovance.com>
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import logging
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import oslo.messaging
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from oslo_config import cfg
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from stevedore import extension
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import ceilometer
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from ceilometer import dispatcher
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from ceilometer.event import converter as event_converter
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from ceilometer.event.storage import models
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from ceilometer.i18n import _
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from ceilometer import messaging
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LOG = logging.getLogger(__name__)
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class EventsNotificationEndpoint(object):
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def __init__(self):
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super(EventsNotificationEndpoint, self).__init__()
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self.dispatcher_manager = dispatcher.load_dispatcher_manager()
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LOG.debug(_('Loading event definitions'))
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self.event_converter = event_converter.setup_events(
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extension.ExtensionManager(
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namespace='ceilometer.event.trait_plugin'))
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def info(self, ctxt, publisher_id, event_type, payload, metadata):
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"""Convert message to Ceilometer Event.
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:param ctxt: oslo.messaging context
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:param publisher_id: publisher of the notification
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:param event_type: type of notification
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:param payload: notification payload
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:param metadata: metadata about the notification
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"""
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# NOTE: the rpc layer currently rips out the notification
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# delivery_info, which is critical to determining the
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# source of the notification. This will have to get added back later.
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notification = messaging.convert_to_old_notification_format(
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'info', ctxt, publisher_id, event_type, payload, metadata)
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self.process_notification(notification)
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def process_notification(self, notification):
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event = self.event_converter.to_event(notification)
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if event is not None:
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LOG.debug(_('Saving event "%s"'), event.event_type)
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problem_events = []
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for dispatcher_ext in self.dispatcher_manager:
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try:
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problem_events.extend(
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dispatcher_ext.obj.record_events(event))
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except ceilometer.NotImplementedError:
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LOG.warn(_('Event is not implemented with the storage'
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' backend'))
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if models.Event.UNKNOWN_PROBLEM in [x[0] for x in problem_events]:
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if not cfg.CONF.notification.ack_on_event_error:
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return oslo.messaging.NotificationResult.REQUEUE
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return oslo.messaging.NotificationResult.HANDLED
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