9d2f8d11ec
During the strategy sync process, if goal_id can't be found in the goals table, will throw a KeyError exception. Change-Id: I62800ac5c69f4f5c7820908f2e777094a51a5541 Closes-Bug: #1711086
580 lines
25 KiB
Python
580 lines
25 KiB
Python
# -*- encoding: utf-8 -*-
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# Copyright (c) 2016 b<>com
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import ast
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import collections
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from oslo_log import log
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from watcher.common import context
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from watcher.decision_engine.loading import default
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from watcher.decision_engine.scoring import scoring_factory
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from watcher import objects
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LOG = log.getLogger(__name__)
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GoalMapping = collections.namedtuple(
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'GoalMapping', ['name', 'display_name', 'efficacy_specification'])
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StrategyMapping = collections.namedtuple(
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'StrategyMapping',
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['name', 'goal_name', 'display_name', 'parameters_spec'])
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ScoringEngineMapping = collections.namedtuple(
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'ScoringEngineMapping',
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['name', 'description', 'metainfo'])
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IndicatorSpec = collections.namedtuple(
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'IndicatorSpec', ['name', 'description', 'unit', 'schema'])
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class Syncer(object):
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"""Syncs all available goals and strategies with the Watcher DB"""
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def __init__(self):
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self.ctx = context.make_context()
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self.discovered_map = None
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self._available_goals = None
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self._available_goals_map = None
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self._available_strategies = None
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self._available_strategies_map = None
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self._available_scoringengines = None
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self._available_scoringengines_map = None
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# This goal mapping maps stale goal IDs to the synced goal
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self.goal_mapping = dict()
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# This strategy mapping maps stale strategy IDs to the synced goal
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self.strategy_mapping = dict()
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# Maps stale scoring engine IDs to the synced scoring engines
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self.se_mapping = dict()
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self.stale_audit_templates_map = {}
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self.stale_audits_map = {}
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self.stale_action_plans_map = {}
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@property
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def available_goals(self):
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"""Goals loaded from DB"""
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if self._available_goals is None:
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self._available_goals = objects.Goal.list(self.ctx)
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return self._available_goals
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@property
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def available_strategies(self):
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"""Strategies loaded from DB"""
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if self._available_strategies is None:
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self._available_strategies = objects.Strategy.list(self.ctx)
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goal_ids = [g.id for g in self.available_goals]
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stale_strategies = [s for s in self._available_strategies
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if s.goal_id not in goal_ids]
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for s in stale_strategies:
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LOG.info("Can't find Goal id %d of strategy %s",
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s.goal_id, s.name)
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s.soft_delete()
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self._available_strategies.remove(s)
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return self._available_strategies
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@property
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def available_scoringengines(self):
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"""Scoring Engines loaded from DB"""
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if self._available_scoringengines is None:
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self._available_scoringengines = (objects.ScoringEngine
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.list(self.ctx))
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return self._available_scoringengines
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@property
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def available_goals_map(self):
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"""Mapping of goals loaded from DB"""
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if self._available_goals_map is None:
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self._available_goals_map = {
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GoalMapping(
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name=g.name,
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display_name=g.display_name,
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efficacy_specification=tuple(
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IndicatorSpec(**item)
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for item in g.efficacy_specification)): g
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for g in self.available_goals
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}
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return self._available_goals_map
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@property
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def available_strategies_map(self):
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if self._available_strategies_map is None:
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goals_map = {g.id: g.name for g in self.available_goals}
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self._available_strategies_map = {
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StrategyMapping(
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name=s.name, goal_name=goals_map[s.goal_id],
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display_name=s.display_name,
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parameters_spec=str(s.parameters_spec)): s
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for s in self.available_strategies
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}
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return self._available_strategies_map
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@property
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def available_scoringengines_map(self):
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if self._available_scoringengines_map is None:
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self._available_scoringengines_map = {
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ScoringEngineMapping(
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name=s.id, description=s.description,
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metainfo=s.metainfo): s
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for s in self.available_scoringengines
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}
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return self._available_scoringengines_map
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def sync(self):
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self.discovered_map = self._discover()
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goals_map = self.discovered_map["goals"]
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strategies_map = self.discovered_map["strategies"]
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scoringengines_map = self.discovered_map["scoringengines"]
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for goal_name, goal_map in goals_map.items():
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if goal_map in self.available_goals_map:
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LOG.info("Goal %s already exists", goal_name)
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continue
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self.goal_mapping.update(self._sync_goal(goal_map))
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for strategy_name, strategy_map in strategies_map.items():
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if (strategy_map in self.available_strategies_map and
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strategy_map.goal_name not in
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[g.name for g in self.goal_mapping.values()]):
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LOG.info("Strategy %s already exists", strategy_name)
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continue
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self.strategy_mapping.update(self._sync_strategy(strategy_map))
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for se_name, se_map in scoringengines_map.items():
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if se_map in self.available_scoringengines_map:
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LOG.info("Scoring Engine %s already exists",
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se_name)
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continue
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self.se_mapping.update(self._sync_scoringengine(se_map))
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self._sync_objects()
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self._soft_delete_removed_scoringengines()
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def _sync_goal(self, goal_map):
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goal_name = goal_map.name
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goal_mapping = dict()
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# Goals that are matching by name with the given discovered goal name
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matching_goals = [g for g in self.available_goals
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if g.name == goal_name]
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stale_goals = self._soft_delete_stale_goals(goal_map, matching_goals)
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if stale_goals or not matching_goals:
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goal = objects.Goal(self.ctx)
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goal.name = goal_name
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goal.display_name = goal_map.display_name
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goal.efficacy_specification = [
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indicator._asdict()
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for indicator in goal_map.efficacy_specification]
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goal.create()
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LOG.info("Goal %s created", goal_name)
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# Updating the internal states
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self.available_goals_map[goal] = goal_map
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# Map the old goal IDs to the new (equivalent) goal
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for matching_goal in matching_goals:
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goal_mapping[matching_goal.id] = goal
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return goal_mapping
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def _sync_strategy(self, strategy_map):
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strategy_name = strategy_map.name
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strategy_display_name = strategy_map.display_name
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goal_name = strategy_map.goal_name
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parameters_spec = strategy_map.parameters_spec
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strategy_mapping = dict()
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# Strategies that are matching by name with the given
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# discovered strategy name
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matching_strategies = [s for s in self.available_strategies
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if s.name == strategy_name]
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stale_strategies = self._soft_delete_stale_strategies(
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strategy_map, matching_strategies)
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if stale_strategies or not matching_strategies:
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strategy = objects.Strategy(self.ctx)
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strategy.name = strategy_name
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strategy.display_name = strategy_display_name
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strategy.goal_id = objects.Goal.get_by_name(self.ctx, goal_name).id
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strategy.parameters_spec = parameters_spec
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strategy.create()
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LOG.info("Strategy %s created", strategy_name)
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# Updating the internal states
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self.available_strategies_map[strategy] = strategy_map
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# Map the old strategy IDs to the new (equivalent) strategy
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for matching_strategy in matching_strategies:
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strategy_mapping[matching_strategy.id] = strategy
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return strategy_mapping
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def _sync_scoringengine(self, scoringengine_map):
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scoringengine_name = scoringengine_map.name
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se_mapping = dict()
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# Scoring Engines matching by id with discovered Scoring engine
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matching_scoringengines = [se for se in self.available_scoringengines
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if se.name == scoringengine_name]
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stale_scoringengines = self._soft_delete_stale_scoringengines(
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scoringengine_map, matching_scoringengines)
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if stale_scoringengines or not matching_scoringengines:
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scoringengine = objects.ScoringEngine(self.ctx)
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scoringengine.name = scoringengine_name
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scoringengine.description = scoringengine_map.description
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scoringengine.metainfo = scoringengine_map.metainfo
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scoringengine.create()
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LOG.info("Scoring Engine %s created", scoringengine_name)
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# Updating the internal states
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self.available_scoringengines_map[scoringengine] = \
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scoringengine_map
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# Map the old scoring engine names to the new (equivalent) SE
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for matching_scoringengine in matching_scoringengines:
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se_mapping[matching_scoringengine.name] = scoringengine
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return se_mapping
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def _sync_objects(self):
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# First we find audit templates, audits and action plans that are stale
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# because their associated goal or strategy has been modified and we
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# update them in-memory
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self._find_stale_audit_templates_due_to_goal()
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self._find_stale_audit_templates_due_to_strategy()
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self._find_stale_audits_due_to_goal()
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self._find_stale_audits_due_to_strategy()
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self._find_stale_action_plans_due_to_strategy()
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self._find_stale_action_plans_due_to_audit()
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# Then we handle the case where an audit template, an audit or an
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# action plan becomes stale because its related goal does not
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# exist anymore.
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self._soft_delete_removed_goals()
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# Then we handle the case where an audit template, an audit or an
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# action plan becomes stale because its related strategy does not
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# exist anymore.
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self._soft_delete_removed_strategies()
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# Finally, we save into the DB the updated stale audit templates
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# and soft delete stale audits and action plans
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for stale_audit_template in self.stale_audit_templates_map.values():
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stale_audit_template.save()
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LOG.info("Audit Template '%s' synced",
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stale_audit_template.name)
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for stale_audit in self.stale_audits_map.values():
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stale_audit.save()
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LOG.info("Stale audit '%s' synced and cancelled",
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stale_audit.uuid)
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for stale_action_plan in self.stale_action_plans_map.values():
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stale_action_plan.save()
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LOG.info("Stale action plan '%s' synced and cancelled",
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stale_action_plan.uuid)
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def _find_stale_audit_templates_due_to_goal(self):
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for goal_id, synced_goal in self.goal_mapping.items():
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filters = {"goal_id": goal_id}
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stale_audit_templates = objects.AuditTemplate.list(
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self.ctx, filters=filters)
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# Update the goal ID for the stale audit templates (w/o saving)
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for audit_template in stale_audit_templates:
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if audit_template.id not in self.stale_audit_templates_map:
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audit_template.goal_id = synced_goal.id
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self.stale_audit_templates_map[audit_template.id] = (
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audit_template)
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else:
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self.stale_audit_templates_map[
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audit_template.id].goal_id = synced_goal.id
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def _find_stale_audit_templates_due_to_strategy(self):
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for strategy_id, synced_strategy in self.strategy_mapping.items():
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filters = {"strategy_id": strategy_id}
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stale_audit_templates = objects.AuditTemplate.list(
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self.ctx, filters=filters)
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# Update strategy IDs for all stale audit templates (w/o saving)
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for audit_template in stale_audit_templates:
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if audit_template.id not in self.stale_audit_templates_map:
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audit_template.strategy_id = synced_strategy.id
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self.stale_audit_templates_map[audit_template.id] = (
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audit_template)
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else:
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self.stale_audit_templates_map[
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audit_template.id].strategy_id = synced_strategy.id
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def _find_stale_audits_due_to_goal(self):
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for goal_id, synced_goal in self.goal_mapping.items():
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filters = {"goal_id": goal_id}
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stale_audits = objects.Audit.list(
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self.ctx, filters=filters, eager=True)
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# Update the goal ID for the stale audits (w/o saving)
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for audit in stale_audits:
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if audit.id not in self.stale_audits_map:
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audit.goal_id = synced_goal.id
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self.stale_audits_map[audit.id] = audit
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else:
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self.stale_audits_map[audit.id].goal_id = synced_goal.id
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def _find_stale_audits_due_to_strategy(self):
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for strategy_id, synced_strategy in self.strategy_mapping.items():
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filters = {"strategy_id": strategy_id}
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stale_audits = objects.Audit.list(
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self.ctx, filters=filters, eager=True)
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# Update strategy IDs for all stale audits (w/o saving)
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for audit in stale_audits:
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if audit.id not in self.stale_audits_map:
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audit.strategy_id = synced_strategy.id
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audit.state = objects.audit.State.CANCELLED
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self.stale_audits_map[audit.id] = audit
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else:
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self.stale_audits_map[
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audit.id].strategy_id = synced_strategy.id
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self.stale_audits_map[
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audit.id].state = objects.audit.State.CANCELLED
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def _find_stale_action_plans_due_to_strategy(self):
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for strategy_id, synced_strategy in self.strategy_mapping.items():
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filters = {"strategy_id": strategy_id}
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stale_action_plans = objects.ActionPlan.list(
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self.ctx, filters=filters, eager=True)
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# Update strategy IDs for all stale action plans (w/o saving)
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for action_plan in stale_action_plans:
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if action_plan.id not in self.stale_action_plans_map:
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action_plan.strategy_id = synced_strategy.id
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action_plan.state = objects.action_plan.State.CANCELLED
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self.stale_action_plans_map[action_plan.id] = action_plan
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else:
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self.stale_action_plans_map[
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action_plan.id].strategy_id = synced_strategy.id
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self.stale_action_plans_map[
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action_plan.id].state = (
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objects.action_plan.State.CANCELLED)
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def _find_stale_action_plans_due_to_audit(self):
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for audit_id, synced_audit in self.stale_audits_map.items():
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filters = {"audit_id": audit_id}
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stale_action_plans = objects.ActionPlan.list(
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self.ctx, filters=filters, eager=True)
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# Update audit IDs for all stale action plans (w/o saving)
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for action_plan in stale_action_plans:
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if action_plan.id not in self.stale_action_plans_map:
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action_plan.audit_id = synced_audit.id
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action_plan.state = objects.action_plan.State.CANCELLED
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self.stale_action_plans_map[action_plan.id] = action_plan
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else:
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self.stale_action_plans_map[
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action_plan.id].audit_id = synced_audit.id
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self.stale_action_plans_map[
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action_plan.id].state = (
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objects.action_plan.State.CANCELLED)
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def _soft_delete_removed_goals(self):
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removed_goals = [
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g for g in self.available_goals
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if g.name not in self.discovered_map['goals']]
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for removed_goal in removed_goals:
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removed_goal.soft_delete()
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filters = {"goal_id": removed_goal.id}
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invalid_ats = objects.AuditTemplate.list(self.ctx, filters=filters)
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for at in invalid_ats:
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LOG.warning(
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"Audit Template '%(audit_template)s' references a "
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"goal that does not exist", audit_template=at.uuid)
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stale_audits = objects.Audit.list(
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self.ctx, filters=filters, eager=True)
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for audit in stale_audits:
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LOG.warning(
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"Audit '%(audit)s' references a "
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"goal that does not exist", audit=audit.uuid)
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if audit.id not in self.stale_audits_map:
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audit.state = objects.audit.State.CANCELLED
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self.stale_audits_map[audit.id] = audit
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else:
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self.stale_audits_map[
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audit.id].state = objects.audit.State.CANCELLED
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def _soft_delete_removed_strategies(self):
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removed_strategies = [
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s for s in self.available_strategies
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if s.name not in self.discovered_map['strategies']]
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for removed_strategy in removed_strategies:
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removed_strategy.soft_delete()
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filters = {"strategy_id": removed_strategy.id}
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invalid_ats = objects.AuditTemplate.list(self.ctx, filters=filters)
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for at in invalid_ats:
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LOG.info(
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"Audit Template '%(audit_template)s' references a "
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"strategy that does not exist",
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audit_template=at.uuid)
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# In this case we can reset the strategy ID to None
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# so the audit template can still achieve the same goal
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# but with a different strategy
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if at.id not in self.stale_audit_templates_map:
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at.strategy_id = None
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self.stale_audit_templates_map[at.id] = at
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else:
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self.stale_audit_templates_map[at.id].strategy_id = None
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stale_audits = objects.Audit.list(
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self.ctx, filters=filters, eager=True)
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for audit in stale_audits:
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LOG.warning(
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"Audit '%(audit)s' references a "
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"strategy that does not exist", audit=audit.uuid)
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if audit.id not in self.stale_audits_map:
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audit.state = objects.audit.State.CANCELLED
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self.stale_audits_map[audit.id] = audit
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else:
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self.stale_audits_map[
|
|
audit.id].state = objects.audit.State.CANCELLED
|
|
|
|
stale_action_plans = objects.ActionPlan.list(
|
|
self.ctx, filters=filters, eager=True)
|
|
for action_plan in stale_action_plans:
|
|
LOG.warning(
|
|
"Action Plan '%(action_plan)s' references a "
|
|
"strategy that does not exist",
|
|
action_plan=action_plan.uuid)
|
|
if action_plan.id not in self.stale_action_plans_map:
|
|
action_plan.state = objects.action_plan.State.CANCELLED
|
|
self.stale_action_plans_map[action_plan.id] = action_plan
|
|
else:
|
|
self.stale_action_plans_map[
|
|
action_plan.id].state = (
|
|
objects.action_plan.State.CANCELLED)
|
|
|
|
def _soft_delete_removed_scoringengines(self):
|
|
removed_se = [
|
|
se for se in self.available_scoringengines
|
|
if se.name not in self.discovered_map['scoringengines']]
|
|
for se in removed_se:
|
|
LOG.info("Scoring Engine %s removed", se.name)
|
|
se.soft_delete()
|
|
|
|
def _discover(self):
|
|
strategies_map = {}
|
|
goals_map = {}
|
|
scoringengines_map = {}
|
|
discovered_map = {
|
|
"goals": goals_map,
|
|
"strategies": strategies_map,
|
|
"scoringengines": scoringengines_map}
|
|
goal_loader = default.DefaultGoalLoader()
|
|
implemented_goals = goal_loader.list_available()
|
|
|
|
strategy_loader = default.DefaultStrategyLoader()
|
|
implemented_strategies = strategy_loader.list_available()
|
|
|
|
for goal_cls in implemented_goals.values():
|
|
goals_map[goal_cls.get_name()] = GoalMapping(
|
|
name=goal_cls.get_name(),
|
|
display_name=goal_cls.get_translatable_display_name(),
|
|
efficacy_specification=tuple(
|
|
IndicatorSpec(**indicator.to_dict())
|
|
for indicator in goal_cls.get_efficacy_specification(
|
|
).get_indicators_specifications()))
|
|
|
|
for strategy_cls in implemented_strategies.values():
|
|
strategies_map[strategy_cls.get_name()] = StrategyMapping(
|
|
name=strategy_cls.get_name(),
|
|
goal_name=strategy_cls.get_goal_name(),
|
|
display_name=strategy_cls.get_translatable_display_name(),
|
|
parameters_spec=str(strategy_cls.get_schema()))
|
|
|
|
for se in scoring_factory.get_scoring_engine_list():
|
|
scoringengines_map[se.get_name()] = ScoringEngineMapping(
|
|
name=se.get_name(),
|
|
description=se.get_description(),
|
|
metainfo=se.get_metainfo())
|
|
|
|
return discovered_map
|
|
|
|
def _soft_delete_stale_goals(self, goal_map, matching_goals):
|
|
"""Soft delete the stale goals
|
|
|
|
:param goal_map: discovered goal map
|
|
:type goal_map: :py:class:`~.GoalMapping` instance
|
|
:param matching_goals: list of DB goals matching the goal_map
|
|
:type matching_goals: list of :py:class:`~.objects.Goal` instances
|
|
:returns: A list of soft deleted DB goals (subset of matching goals)
|
|
:rtype: list of :py:class:`~.objects.Goal` instances
|
|
"""
|
|
goal_display_name = goal_map.display_name
|
|
goal_name = goal_map.name
|
|
goal_efficacy_spec = goal_map.efficacy_specification
|
|
|
|
stale_goals = []
|
|
for matching_goal in matching_goals:
|
|
if (matching_goal.efficacy_specification == goal_efficacy_spec and
|
|
matching_goal.display_name == goal_display_name):
|
|
LOG.info("Goal %s unchanged", goal_name)
|
|
else:
|
|
LOG.info("Goal %s modified", goal_name)
|
|
matching_goal.soft_delete()
|
|
stale_goals.append(matching_goal)
|
|
|
|
return stale_goals
|
|
|
|
def _soft_delete_stale_strategies(self, strategy_map, matching_strategies):
|
|
strategy_name = strategy_map.name
|
|
strategy_display_name = strategy_map.display_name
|
|
parameters_spec = strategy_map.parameters_spec
|
|
|
|
stale_strategies = []
|
|
for matching_strategy in matching_strategies:
|
|
if (matching_strategy.display_name == strategy_display_name and
|
|
matching_strategy.goal_id not in self.goal_mapping and
|
|
matching_strategy.parameters_spec ==
|
|
ast.literal_eval(parameters_spec)):
|
|
LOG.info("Strategy %s unchanged", strategy_name)
|
|
else:
|
|
LOG.info("Strategy %s modified", strategy_name)
|
|
matching_strategy.soft_delete()
|
|
stale_strategies.append(matching_strategy)
|
|
|
|
return stale_strategies
|
|
|
|
def _soft_delete_stale_scoringengines(
|
|
self, scoringengine_map, matching_scoringengines):
|
|
se_name = scoringengine_map.name
|
|
se_description = scoringengine_map.description
|
|
se_metainfo = scoringengine_map.metainfo
|
|
|
|
stale_scoringengines = []
|
|
for matching_scoringengine in matching_scoringengines:
|
|
if (matching_scoringengine.description == se_description and
|
|
matching_scoringengine.metainfo == se_metainfo):
|
|
LOG.info("Scoring Engine %s unchanged", se_name)
|
|
else:
|
|
LOG.info("Scoring Engine %s modified", se_name)
|
|
matching_scoringengine.soft_delete()
|
|
stale_scoringengines.append(matching_scoringengine)
|
|
|
|
return stale_scoringengines
|