tacker/tacker/tests/uuidsentinel.py

34 lines
1.1 KiB
Python

# Copyright 2019 NTT DATA
# All Rights Reserved.
#
# 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.
import sys
class UUIDSentinels(object):
def __init__(self):
from oslo_utils import uuidutils
self._uuid_module = uuidutils
self._sentinels = {}
def __getattr__(self, name):
if name.startswith('_'):
raise ValueError('Sentinels must not start with _')
if name not in self._sentinels:
self._sentinels[name] = self._uuid_module.generate_uuid()
return self._sentinels[name]
sys.modules[__name__] = UUIDSentinels()