69 lines
2.3 KiB
Python
69 lines
2.3 KiB
Python
# Copyright (c) 2016 Mirantis Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import glanceclient.v2.client as gclient
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from oslo_config import cfg
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from murano.common import auth_utils
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from murano.dsl import dsl
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from murano.dsl import helpers
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from murano.dsl import session_local_storage
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CONF = cfg.CONF
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@dsl.name('io.murano.system.MetadefBrowser')
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class MetadefBrowser(object):
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def __init__(self, this, region_name=None, cache=True):
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session = helpers.get_execution_session()
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self._project_id = session.project_id
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self._region = this.find_owner('io.murano.CloudRegion')
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self._region_name = region_name
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self._cache = cache
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self._namespaces = {}
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self._objects = {}
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@staticmethod
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@session_local_storage.execution_session_memoize
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def _get_client(region_name):
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return gclient.Client(**auth_utils.get_session_client_parameters(
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service_type='image', region=region_name, conf='glance'
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))
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@property
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def _client(self):
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region = self._region_name or (
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None if self._region is None else self._region['name'])
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return self._get_client(region)
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def get_namespaces(self, resource_type):
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if not self._cache or resource_type not in self._namespaces:
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nss = list(self._client.metadefs_namespace.list(
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resource_type=resource_type))
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self._namespaces[resource_type] = nss
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return nss
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else:
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return self._namespaces[resource_type]
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def get_objects(self, namespace):
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if not self._cache or namespace not in self._objects:
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objects = list(self._client.metadefs_object.list(
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namespace=namespace))
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self._objects[namespace] = objects
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return objects
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else:
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return self._objects[namespace]
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