# -*- encoding: utf-8 -*-
# Copyright (c) 2015 b<>com
#
# Authors: Jean-Emile DARTOIS <jean-emile.dartois@b-com.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.
#
from oslo_log import log
from watcher.applier.actions import base as baction
from watcher.common import exception
from watcher.decision_engine.solution import base
LOG = log.getLogger(__name__)
[docs]class DefaultSolution(base.BaseSolution):
def __init__(self, goal, strategy):
"""Stores a set of actions generated by a strategy
The DefaultSolution class store a set of actions generated by a
strategy in order to achieve the goal.
:param goal: Goal associated to this solution
:type goal: :py:class:`~.base.Goal` instance
:param strategy: Strategy associated to this solution
:type strategy: :py:class:`~.BaseStrategy` instance
"""
super(DefaultSolution, self).__init__(goal, strategy)
self._actions = []
[docs] def add_action(self, action_type, input_parameters=None, resource_id=None):
if input_parameters is not None:
if baction.BaseAction.RESOURCE_ID in input_parameters.keys():
raise exception.ReservedWord(name=baction.BaseAction.
RESOURCE_ID)
else:
input_parameters = {}
if resource_id is not None:
input_parameters[baction.BaseAction.RESOURCE_ID] = resource_id
action = {
'action_type': action_type,
'input_parameters': input_parameters
}
if action not in self._actions:
self._actions.append(action)
else:
LOG.warning('Action %s has been added into the solution, '
'duplicate action will be dropped.', str(action))
def __str__(self):
return "\n".join(self._actions)
@property
def actions(self):
"""Get the current actions of the solution"""
return self._actions
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