1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
#
# Copyright 2013 Red Hat, Inc
#
# Author: Eoghan Glynn <eglynn@redhat.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 warnings
from ceilometerclient.common import base
from ceilometerclient.common import utils
from ceilometerclient import exc
from ceilometerclient.v2 import options
UPDATABLE_ATTRIBUTES = [
'name',
'description',
'type',
'state',
'enabled',
'alarm_actions',
'ok_actions',
'insufficient_data_actions',
'repeat_actions',
'threshold_rule',
'combination_rule',
]
CREATION_ATTRIBUTES = UPDATABLE_ATTRIBUTES + ['project_id', 'user_id',
'time_constraints']
class Alarm(base.Resource):
def __repr__(self):
return "<Alarm %s>" % self._info
def __getattr__(self, k):
# Alias to have the Alarm client object
# that look like the Alarm storage object
if k == 'rule':
k = '%s_rule' % self.type
if k == 'id':
return self.alarm_id
return super(Alarm, self).__getattr__(k)
def delete(self):
return self.manager.delete(self.alarm_id)
def get_state(self):
state = self.manager.get_state(self.alarm_id)
return state.get('alarm')
class AlarmChange(base.Resource):
def __repr__(self):
return "<AlarmChange %s>" % self._info
def __getattr__(self, k):
return super(AlarmChange, self).__getattr__(k)
class AlarmManager(base.Manager):
resource_class = Alarm
@staticmethod
def _path(id=None):
return '/v2/alarms/%s' % id if id else '/v2/alarms'
def list(self, q=None):
return self._list(options.build_url(self._path(), q))
def get(self, alarm_id):
try:
return self._list(self._path(alarm_id), expect_single=True)[0]
except IndexError:
return None
except exc.HTTPNotFound:
# When we try to get deleted alarm HTTPNotFound occurs
# or when alarm doesn't exists this exception don't must
# go deeper because cleanUp() (method which remove all
# created things like instance, alarm, etc.) at scenario
# tests doesn't know how to process it
return None
@classmethod
def _compat_legacy_alarm_kwargs(cls, kwargs, create=False):
cls._compat_counter_rename_kwargs(kwargs, create)
cls._compat_alarm_before_rule_type_kwargs(kwargs, create)
@staticmethod
def _compat_counter_rename_kwargs(kwargs, create=False):
# NOTE(jd) Compatibility with Havana-2 API
if 'counter_name' in kwargs:
warnings.warn("counter_name has been renamed to meter_name",
DeprecationWarning)
kwargs['meter_name'] = kwargs['counter_name']
@staticmethod
def _compat_alarm_before_rule_type_kwargs(kwargs, create=False):
# NOTE(sileht) Compatibility with Havana-3 API
if create and 'type' not in kwargs:
warnings.warn("alarm without type set is deprecated",
DeprecationWarning)
kwargs['type'] = 'threshold'
for field in ['period', 'evaluation_periods', 'threshold',
'statistic', 'comparison_operator', 'meter_name']:
if field in kwargs:
kwargs.setdefault('threshold_rule', {})[field] = kwargs[field]
del kwargs[field]
if 'matching_metadata' in kwargs:
query = []
for key in kwargs['matching_metadata']:
query.append({'field': key,
'op': 'eq',
'value': kwargs['matching_metadata'][key]})
del kwargs['matching_metadata']
kwargs['threshold_rule']['query'] = query
@staticmethod
def _merge_time_constraints(existing_tcs, kwargs):
new_tcs = kwargs.get('time_constraints', [])
if not existing_tcs:
updated_tcs = new_tcs
else:
updated_tcs = [dict(tc) for tc in existing_tcs]
for tc in new_tcs:
for i, old_tc in enumerate(updated_tcs):
if old_tc['name'] == tc['name']: # if names match, merge
utils.merge_nested_dict(updated_tcs[i], tc)
break
else:
updated_tcs.append(tc)
tcs_to_remove = kwargs.get('remove_time_constraints', [])
for tc in updated_tcs:
if tc['name'] in tcs_to_remove:
updated_tcs.remove(tc)
return updated_tcs
def create(self, **kwargs):
self._compat_legacy_alarm_kwargs(kwargs, create=True)
new = dict((key, value) for (key, value) in kwargs.items()
if key in CREATION_ATTRIBUTES)
return self._create(self._path(), new)
def update(self, alarm_id, **kwargs):
self._compat_legacy_alarm_kwargs(kwargs)
alarm = self.get(alarm_id)
if alarm is None:
raise exc.CommandError('Alarm not found: %s' % alarm_id)
updated = alarm.to_dict()
updated['time_constraints'] = self._merge_time_constraints(
updated.get('time_constraints', []), kwargs)
kwargs = dict((k, v) for k, v in kwargs.items()
if k in updated and k in UPDATABLE_ATTRIBUTES)
utils.merge_nested_dict(updated, kwargs, depth=1)
return self._update(self._path(alarm_id), updated)
def delete(self, alarm_id):
return self._delete(self._path(alarm_id))
def set_state(self, alarm_id, state):
body = self.api.put("%s/state" % self._path(alarm_id),
json=state).json()
return body
def get_state(self, alarm_id):
body = self.api.get("%s/state" % self._path(alarm_id)).json()
return body
def get_history(self, alarm_id, q=None):
path = '%s/history' % self._path(alarm_id)
url = options.build_url(path, q)
return self._list(url, obj_class=AlarmChange)
|