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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 logging
from toscaparser.common.exception import ExceptionCollector
from toscaparser.common.exception import UnknownFieldError
from toscaparser.entity_template import EntityTemplate
from toscaparser.utils import validateutils
SECTIONS = (DESCRIPTION, EVENT, SCHEDULE, METER_NAME, METADATA,
TARGET_FILTER, CONDITION, ACTION) = \
('description', 'event_type', 'schedule', 'meter_name',
'metadata', 'target_filter', 'condition', 'action')
CONDITION_KEYNAMES = (CONSTRAINT, PERIOD, EVALUATIONS, METHOD,
THRESHOLD, COMPARISON_OPERATOR) = \
('constraint', 'period', 'evaluations',
'method', 'threshold', 'comparison_operator')
log = logging.getLogger('tosca')
class Triggers(EntityTemplate):
'''Triggers defined in policies of topology template'''
def __init__(self, name, trigger_tpl):
self.name = name
self.trigger_tpl = trigger_tpl
self._validate_keys()
self._validate_condition()
self._validate_input()
def get_description(self):
return self.trigger_tpl['description']
def get_event(self):
return self.trigger_tpl['event_type']
def get_schedule(self):
return self.trigger_tpl['schedule']
def get_target_filter(self):
return self.trigger_tpl['target_filter']
def get_condition(self):
return self.trigger_tpl['condition']
def get_action(self):
return self.trigger_tpl['action']
def _validate_keys(self):
for key in self.trigger_tpl.keys():
if key not in SECTIONS:
ExceptionCollector.appendException(
UnknownFieldError(what='Triggers "%s"' % self.name,
field=key))
def _validate_condition(self):
for key in self.get_condition():
if key not in CONDITION_KEYNAMES:
ExceptionCollector.appendException(
UnknownFieldError(what='Triggers "%s"' % self.name,
field=key))
def _validate_input(self):
for key, value in self.get_condition().items():
if key in [PERIOD, EVALUATIONS]:
validateutils.validate_integer(value)
elif key == THRESHOLD:
validateutils.validate_numeric(value)
elif key in [METER_NAME, METHOD]:
validateutils.validate_string(value)
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