python-manilaclient/manilaclient/extension.py
vponomaryov 0ccdb38dd2 Remove py33 incompatibilities
Except py33 compatibility changes were added unittests
to cover changed code.

Partially-implements blueprint py3-compatibility
Change-Id: Ib51e02ec69100a842ea1092e9f659ab1ebede671
2014-06-28 06:09:55 +00:00

40 lines
1.4 KiB
Python

# Copyright 2011 OpenStack LLC.
# 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.
from manilaclient import base
from manilaclient import utils
class Extension(utils.HookableMixin):
"""Extension descriptor."""
SUPPORTED_HOOKS = ('__pre_parse_args__', '__post_parse_args__')
def __init__(self, name, module):
self.name = name
self.module = module
self._parse_extension_module()
def _parse_extension_module(self):
self.manager_class = None
for attr_name, attr_value in list(self.module.__dict__.items()):
if attr_name in self.SUPPORTED_HOOKS:
self.add_hook(attr_name, attr_value)
elif utils.safe_issubclass(attr_value, base.Manager):
self.manager_class = attr_value
def __repr__(self):
return "<Extension '%s'>" % self.name