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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.
#
# -------------------------------------------------------------------------
#
from valet.engine.app_manager.group import Group
class AffinityFilter(object):
def __init__(self):
self.name = "affinity"
self.affinity_id = None
self.is_first = True
self.status = None
def init_condition(self):
self.affinity_id = None
self.is_first = True
self.status = None
def check_pre_condition(self, _level, _v, _avail_hosts, _avail_groups):
if isinstance(_v, Group):
self.affinity_id = _v.vid
if self.affinity_id in _avail_groups.keys():
self.is_first = False
if self.affinity_id is not None:
return True
else:
return False
def filter_candidates(self, _level, _v, _candidate_list):
if self.is_first:
return _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 affinity group."""
memberships = _candidate.get_all_memberships(_level)
for gk, gr in memberships.items():
if gr.group_type == "affinity" and gk == self.affinity_id:
return True
return False
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