Files
watcher/watcher/decision_engine/strategy/selector/default.py
Vincent Françoise 9078e1e138 Added 'dummy' entrypoint within watcher_strategies
This should make our 'dummy' strategy available for use.
I also removed all previously defined default goals, which means
that they will have to define it themselves from now on.
This can also be useful for future integration tests.

Change-Id: I6c43eba941022a88851a199b56a6c20f017b9e71
DocImpact
Closes-Bug: #1520178
2015-11-30 16:06:45 +01:00

57 lines
1.9 KiB
Python

# -*- encoding: utf-8 -*-
# Copyright (c) 2015 b<>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_config import cfg
from oslo_log import log
from watcher.common.exception import WatcherException
from watcher.decision_engine.strategy.loader import StrategyLoader
from watcher.decision_engine.strategy.selector.base import Selector
LOG = log.getLogger(__name__)
CONF = cfg.CONF
default_goals = {'DUMMY': 'dummy'}
WATCHER_GOALS_OPTS = [
cfg.DictOpt(
'goals',
default=default_goals,
help='Goals used for the optimization. '
'Maps each goal to an associated strategy (for example: '
'BASIC_CONSOLIDATION:basic, MY_GOAL:my_strategy_1)'),
]
goals_opt_group = cfg.OptGroup(name='watcher_goals',
title='Goals available for the optimization')
CONF.register_group(goals_opt_group)
CONF.register_opts(WATCHER_GOALS_OPTS, goals_opt_group)
class StrategySelector(Selector):
def __init__(self):
self.strategy_loader = StrategyLoader()
def define_from_goal(self, goal_name):
strategy_to_load = None
try:
strategy_to_load = CONF.watcher_goals.goals[goal_name]
return self.strategy_loader.load(strategy_to_load)
except KeyError as exc:
LOG.exception(exc)
raise WatcherException(
"Incorrect mapping: could not find "
"associated strategy for '%s'" % goal_name
)