57 lines
1.9 KiB
Python
57 lines
1.9 KiB
Python
#
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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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import abc
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from oslo.config import cfg
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import six
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@six.add_metaclass(abc.ABCMeta)
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class ClientPlugin():
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def __init__(self, clients):
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self.context = clients.context
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self.clients = clients
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self._client = None
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def client(self):
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if not self._client:
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self._client = self._create()
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return self._client
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@abc.abstractmethod
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def _create(self):
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'''Return a newly created client.'''
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pass
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@property
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def auth_token(self):
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# Always use the auth_token from the keystone client, as
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# this may be refreshed if the context contains credentials
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# which allow reissuing of a new token before the context
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# auth_token expiry (e.g trust_id or username/password)
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return self.clients.client('keystone').auth_token
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def url_for(self, **kwargs):
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return self.clients.client('keystone').url_for(**kwargs)
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def _get_client_option(self, client, option):
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try:
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group_name = 'clients_' + client
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cfg.CONF.import_opt(option, 'heat.common.config',
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group=group_name)
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return getattr(getattr(cfg.CONF, group_name), option)
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except (cfg.NoSuchGroupError, cfg.NoSuchOptError):
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cfg.CONF.import_opt(option, 'heat.common.config', group='clients')
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return getattr(cfg.CONF.clients, option)
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