/usr/lib/python2.7/dist-packages/aodh/api/controllers/v2/alarm_rules/combination.py is in python-aodh 2.0.0-0ubuntu1.
This file is owned by root:root, with mode 0o644.
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# 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 pecan
import wsme
from wsme import types as wtypes
from aodh.api.controllers.v2 import base
from aodh.api.controllers.v2 import utils as v2_utils
from aodh.i18n import _
class AlarmCombinationRule(base.AlarmRule):
"""Alarm Combination Rule
Describe when to trigger the alarm based on combining the state of
other alarms.
"""
operator = base.AdvEnum('operator', str, 'or', 'and', default='and')
"How to combine the sub-alarms"
alarm_ids = wsme.wsattr([wtypes.text], mandatory=True)
"List of alarm identifiers to combine"
@property
def default_description(self):
joiner = ' %s ' % self.operator
return _('Combined state of alarms %s') % joiner.join(self.alarm_ids)
def as_dict(self):
return self.as_dict_from_keys(['operator', 'alarm_ids'])
@staticmethod
def validate(rule):
rule.alarm_ids = sorted(set(rule.alarm_ids), key=rule.alarm_ids.index)
if len(rule.alarm_ids) <= 1:
raise base.ClientSideError(_('Alarm combination rule should '
'contain at least two different '
'alarm ids.'))
return rule
@staticmethod
def validate_alarm(alarm):
project = v2_utils.get_auth_project(
alarm.project_id if alarm.project_id != wtypes.Unset else None)
for id in alarm.combination_rule.alarm_ids:
alarms = list(pecan.request.alarm_storage_conn.get_alarms(
alarm_id=id, project=project))
if not alarms:
raise base.AlarmNotFound(id, project)
@staticmethod
def update_hook(alarm):
# should check if there is any circle in the dependency, but for
# efficiency reason, here only check alarm cannot depend on itself
if alarm.alarm_id in alarm.combination_rule.alarm_ids:
raise base.ClientSideError(
_('Cannot specify alarm %s itself in combination rule') %
alarm.alarm_id)
@classmethod
def sample(cls):
return cls(operator='or',
alarm_ids=['739e99cb-c2ec-4718-b900-332502355f38',
'153462d0-a9b8-4b5b-8175-9e4b05e9b856'])
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