70 lines
2.3 KiB
Python
70 lines
2.3 KiB
Python
# Copyright 2010 Jacob Kaplan-Moss
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# Copyright 2011 OpenStack Foundation
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# Copyright 2011 Piston Cloud Computing, Inc.
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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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OpenStack Client interface. Handles the REST calls and responses.
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"""
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from oslo_utils import importutils
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from manilaclient import api_versions
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from manilaclient import exceptions
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def get_client_class(version):
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version_map = {
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'1': 'manilaclient.v1.client.Client',
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'2': 'manilaclient.v2.client.Client',
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}
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try:
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client_path = version_map[str(version)]
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except (KeyError, ValueError):
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msg = "Invalid client version '%s'. must be one of: %s" % (
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(version, ', '.join(version_map)))
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raise exceptions.UnsupportedVersion(msg)
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return importutils.import_class(client_path)
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def Client(client_version, *args, **kwargs):
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def _convert_to_api_version(version):
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"""Convert version to an APIVersion object unless it already is one."""
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if hasattr(version, 'get_major_version'):
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api_version = version
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else:
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if version in ('1', '1.0'):
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api_version = api_versions.APIVersion(
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api_versions.DEPRECATED_VERSION)
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elif version == '2':
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api_version = api_versions.APIVersion(api_versions.MIN_VERSION)
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else:
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api_version = api_versions.APIVersion(version)
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return api_version
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api_version = _convert_to_api_version(client_version)
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client_class = get_client_class(api_version.get_major_version())
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# Make sure the kwarg api_version is set with an APIVersion object.
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# 1st choice is to use the incoming kwarg. 2nd choice is the positional.
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kwargs['api_version'] = _convert_to_api_version(
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kwargs.get('api_version', api_version))
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return client_class(*args, **kwargs)
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