python-openstackclient/openstackclient/identity/client.py
Jamie Lennox 47977fcc32 Raise AttributeError for unknown attributes
Not returning a value is the same as returning None. In the event that
someone asks ClientManager for an attribute that doesn't exist it should
raise AttributeError in the same way as other python objects rather
than return an empty value.

Change-Id: Id0ee825e6527c831c38e3a671958ded362fb96e1
2015-03-05 23:40:26 -08:00

79 lines
2.4 KiB
Python

# Copyright 2012-2013 OpenStack Foundation
#
# 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 logging
from keystoneclient.v2_0 import client as identity_client_v2
from openstackclient.api import auth
from openstackclient.common import utils
LOG = logging.getLogger(__name__)
DEFAULT_IDENTITY_API_VERSION = '2'
API_VERSION_OPTION = 'os_identity_api_version'
API_NAME = 'identity'
API_VERSIONS = {
'2.0': 'openstackclient.identity.client.IdentityClientv2',
'2': 'openstackclient.identity.client.IdentityClientv2',
'3': 'keystoneclient.v3.client.Client',
}
# Translate our API version to auth plugin version prefix
AUTH_VERSIONS = {
'2.0': 'v2',
'2': 'v2',
'3': 'v3',
}
def make_client(instance):
"""Returns an identity service client."""
identity_client = utils.get_client_class(
API_NAME,
instance._api_version[API_NAME],
API_VERSIONS)
LOG.debug('Instantiating identity client: %s', identity_client)
client = identity_client(
session=instance.session,
region_name=instance._region_name,
)
return client
def build_option_parser(parser):
"""Hook to add global options"""
parser.add_argument(
'--os-identity-api-version',
metavar='<identity-api-version>',
default=utils.env(
'OS_IDENTITY_API_VERSION',
default=DEFAULT_IDENTITY_API_VERSION),
help='Identity API version, default=' +
DEFAULT_IDENTITY_API_VERSION +
' (Env: OS_IDENTITY_API_VERSION)')
return auth.build_auth_plugins_option_parser(parser)
class IdentityClientv2(identity_client_v2.Client):
"""Tweak the earlier client class to deal with some changes"""
def __getattr__(self, name):
# Map v3 'projects' back to v2 'tenants'
if name == "projects":
return self.tenants
else:
raise AttributeError(name)