80 lines
2.6 KiB
Python
80 lines
2.6 KiB
Python
# Copyright 2012 OpenStack LLC.
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# All Rights Reserved
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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"""Manage access to the clients, including authenticating when needed.
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"""
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import logging
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from quantumclient.common import exceptions as exc
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from quantumclient.quantum import client as quantum_client
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from quantumclient.client import HTTPClient
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LOG = logging.getLogger(__name__)
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class ClientCache(object):
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"""Descriptor class for caching created client handles.
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"""
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def __init__(self, factory):
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self.factory = factory
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self._handle = None
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def __get__(self, instance, owner):
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# Tell the ClientManager to login to keystone
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if self._handle is None:
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self._handle = self.factory(instance)
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return self._handle
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class ClientManager(object):
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"""Manages access to API clients, including authentication.
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"""
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quantum = ClientCache(quantum_client.make_client)
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def __init__(self, token=None, url=None,
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auth_url=None,
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tenant_name=None, tenant_id=None,
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username=None, password=None,
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region_name=None,
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api_version=None,
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):
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self._token = token
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self._url = url
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self._auth_url = auth_url
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self._tenant_name = tenant_name
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self._tenant_id = tenant_id
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self._username = username
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self._password = password
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self._region_name = region_name
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self._api_version = api_version
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self._service_catalog = None
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return
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def initialize(self):
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if not self._url:
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httpclient = HTTPClient(username=self._username,
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tenant_name=self._tenant_name,
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password=self._password,
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region_name=self._region_name,
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auth_url=self._auth_url)
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httpclient.authenticate()
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# Populate other password flow attributes
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self._token = httpclient.auth_token
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self._url = httpclient.endpoint_url
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