deb-ceilometer/ceilometer/database/notifications.py
Pradeep Kilambi e8929f3e18 Move profiler meters to yaml
Partially-Implements: blueprint declarative-notifications

Change-Id: Ife5aabce76083b98494a64a4987b2e77718909b3
2015-08-27 16:00:40 -04:00

69 lines
2.3 KiB
Python

#
# Copyright 2015 Hewlett Packard
#
# 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
import oslo_messaging
from oslo_utils import timeutils
from ceilometer.agent import plugin_base
from ceilometer import sample
SERVICE = 'trove'
cfg.CONF.import_opt('trove_control_exchange',
'ceilometer.notification')
class TroveMetricsNotificationBase(plugin_base.NotificationBase):
"""Base class for trove (dbaas) notifications."""
@staticmethod
def get_targets(conf):
"""Return a sequence of oslo.messaging.Target
This sequence is defining the exchange and topics to be connected for
this plugin.
"""
return [oslo_messaging.Target(topic=topic,
exchange=conf.trove_control_exchange)
for topic in conf.notification_topics]
class InstanceExists(TroveMetricsNotificationBase):
"""Handles Trove instance exists notification.
Emits a sample for a measurable audit interval.
"""
event_types = ['%s.instance.exists' % SERVICE]
def process_notification(self, message):
period_start = timeutils.normalize_time(timeutils.parse_isotime(
message['payload']['audit_period_beginning']))
period_end = timeutils.normalize_time(timeutils.parse_isotime(
message['payload']['audit_period_ending']))
period_difference = timeutils.delta_seconds(period_start, period_end)
yield sample.Sample.from_notification(
name=message['event_type'],
type=sample.TYPE_CUMULATIVE,
unit='s',
volume=period_difference,
resource_id=message['payload']['instance_id'],
user_id=message['payload']['user_id'],
project_id=message['payload']['tenant_id'],
message=message)