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.

import logging

import oslo.messaging
from oslo_config import cfg
from oslo_context import context
from stevedore import extension

from ceilometer.event import converter as event_converter
from ceilometer.i18n import _
from ceilometer import messaging
from ceilometer.publisher import utils

LOG = logging.getLogger(__name__)


[docs]class EventsNotificationEndpoint(object): def __init__(self, transporter): super(EventsNotificationEndpoint, self).__init__() LOG.debug(_('Loading event definitions')) self.ctxt = context.get_admin_context() self.event_converter = event_converter.setup_events( extension.ExtensionManager( namespace='ceilometer.event.trait_plugin')) self.transporter = transporter # NOTE(gordc): if no publisher, this isn't a PipelineManager and # data should be requeued. self.requeue = not hasattr(transporter, 'publisher')
[docs] def info(self, ctxt, publisher_id, event_type, payload, metadata): """Convert message to Ceilometer Event. :param ctxt: oslo.messaging context :param publisher_id: publisher of the notification :param event_type: type of notification :param payload: notification payload :param metadata: metadata about the notification """ # 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( 'info', ctxt, publisher_id, event_type, payload, metadata) self.process_notification(notification)
[docs] def error(self, ctxt, publisher_id, event_type, payload, metadata): """Convert error message to Ceilometer Event. :param ctxt: oslo.messaging context :param publisher_id: publisher of the notification :param event_type: type of notification :param payload: notification payload :param metadata: metadata about the notification """ # 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( 'error', ctxt, publisher_id, event_type, payload, metadata) self.process_notification(notification)
[docs] def process_notification(self, notification): try: event = self.event_converter.to_event(notification) if event is not None: if self.requeue: serialized_event = utils.message_from_event( event, cfg.CONF.publisher.telemetry_secret) for notifier in self.transporter: notifier.sample( self.ctxt.to_dict(), event_type='pipeline.event', payload=[serialized_event]) else: with self.transporter.publisher(self.ctxt) as p: p(event) except Exception: if not cfg.CONF.notification.ack_on_event_error: return oslo.messaging.NotificationResult.REQUEUE raise return oslo.messaging.NotificationResult.HANDLED