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