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#
# -------------------------------------------------------------------------
# Copyright (c) 2019 AT&T Intellectual Property
#
# 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.
#
# -------------------------------------------------------------------------
#
class DiversityFilter(object):
def __init__(self):
self.name = "diversity"
self.diversity_list = []
self.status = None
def init_condition(self):
self.diversity_list = []
self.status = None
def check_pre_condition(self, _level, _v, _avail_hosts, _avail_groups):
if len(_v.diversity_groups) > 0:
for _, div_group in _v.diversity_groups.items():
if div_group.level == _level:
self.diversity_list.append(div_group.vid)
if len(self.diversity_list) > 0:
return True
else:
return False
def filter_candidates(self, _level, _v, _candidate_list):
candidate_list = []
for c in _candidate_list:
if self._check_candidate(_level, c):
candidate_list.append(c)
return candidate_list
def _check_candidate(self, _level, _candidate):
"""Filter based on named diversity groups."""
memberships = _candidate.get_memberships(_level)
for diversity_id in self.diversity_list:
for gk, gr in memberships.items():
if gr.group_type == "diversity" and gk == diversity_id:
return False
return True
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