77 lines
2.6 KiB
Python
77 lines
2.6 KiB
Python
#
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# Copyright 2015 NEC Corporation.
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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 voluptuous
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import wsme
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from wsme import types as wtypes
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from aodh.api.controllers.v2 import base
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from aodh.i18n import _
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# Schema validation for the event type query.
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_q_validator = voluptuous.Schema(
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{"field": voluptuous.Match(r"^[a-zA-Z.',0-9_-]*$"),
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"op": voluptuous.In(base.operation_kind),
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"value": voluptuous.In(["string", "integer", "float", "boolean", ""])})
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class AlarmEventRule(base.AlarmRule):
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"""Alarm Event Rule.
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Describe when to trigger the alarm based on an event
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"""
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event_type = wsme.wsattr(wtypes.text)
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"The type of event (default is '*')"
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query = wsme.wsattr([base.Query])
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"The query to find the event (default is [])"
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def __init__(self, event_type=None, query=None):
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event_type = event_type or '*'
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query = [base.Query(**q) for q in query or []]
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super(AlarmEventRule, self).__init__(event_type=event_type,
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query=query)
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@classmethod
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def validate_alarm(cls, alarm):
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super(AlarmEventRule, cls).validate_alarm(alarm)
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for i in alarm.event_rule.query:
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i._get_value_as_type()
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try:
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_q_validator({"field": i.field, "op": i.op,
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"value": i.type})
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except voluptuous.MultipleInvalid as e:
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raise base.ClientSideError(
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_("Query value or traits invalid: %s") % str(e))
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@property
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def default_description(self):
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return _('Alarm when %s event occurred.') % self.event_type
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def as_dict(self):
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rule = self.as_dict_from_keys(['event_type'])
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rule['query'] = [q.as_dict() for q in self.query]
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return rule
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@classmethod
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def sample(cls):
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return cls(event_type='compute.instance.update',
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query=[{'field': 'traits.instance_id"',
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'value': '153462d0-a9b8-4b5b-8175-9e4b05e9b856',
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'op': 'eq',
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'type': 'string'}])
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