python-novaclient/novaclient/extension.py
Andrey Kurilin d03014cdb0 Use common code instead of novaclient.utils
Module `novaclient.utils` contains a lot of functions which are
presented in modules from common code.

* service_type -> novaclient.openstack.common.cliutils.service_type
* get_service_type -> novaclient.openstack.common.cliutils.get_service_type
* pretty_choice_list ->
      novaclient.openstack.common.cliutils.pretty_choice_list
* import_class -> oslo.utils.importutils.importclass
* HookableMixin -> novaclient.openstack.common.apiclient.base.HookableMixin

Change-Id: Ia6cac058da12c852d92f26875a66ae31cc4c63d4
2014-09-19 16:56:13 +03:00

41 lines
1.4 KiB
Python

# Copyright 2011 OpenStack Foundation
# 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 novaclient import base
from novaclient.openstack.common.apiclient import base as common_base
from novaclient import utils
class Extension(common_base.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 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