43 lines
1.4 KiB
Python
43 lines
1.4 KiB
Python
#
|
|
# 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 abc
|
|
|
|
from heat.common import exception
|
|
|
|
|
|
class MicroversionMixin(object, metaclass=abc.ABCMeta):
|
|
"""Mixin For microversion support."""
|
|
|
|
def client(self, version=None):
|
|
if version is None:
|
|
version = self.get_max_microversion()
|
|
elif not self.is_version_supported(version):
|
|
raise exception.InvalidServiceVersion(
|
|
version=version,
|
|
service=self._get_service_name())
|
|
|
|
if version in self._client_instances:
|
|
return self._client_instances[version]
|
|
|
|
self._client_instances[version] = self._create(version=version)
|
|
return self._client_instances[version]
|
|
|
|
@abc.abstractmethod
|
|
def get_max_microversion(self):
|
|
pass
|
|
|
|
@abc.abstractmethod
|
|
def is_version_supported(self, version):
|
|
pass
|