88 lines
3.1 KiB
Python
88 lines
3.1 KiB
Python
# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
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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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from graffiti.api.model.v1.capability_type import CapabilityType
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from graffiti.api.model.v1.dao.captype_dao import CapabilityTypeDAOBase
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import json
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from oslo.config import cfg
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from wsme.rest.json import fromjson
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from wsme.rest.json import tojson
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class FileCapabilityTypeDAO(CapabilityTypeDAOBase):
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def __init__(self, **kwargs):
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super(FileCapabilityTypeDAO, self).__init__(**kwargs)
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self._graffiti_folder = cfg.CONF.FILE_PERSISTENCE.dictionary_folder
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self._filename = "dictionary.json"
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self._dictionaryfile = self._graffiti_folder + self._filename
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self._capability_types = self.__file_to_memory()
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self._type = "FileCapabilityTypeDAO"
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def get_type(self):
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return self._type
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def get_capability_type(self, name, namespace):
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id = namespace + ":" + name
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return self._capability_types[id]
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def find_capability_types(self, query_string):
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return self._capability_types.itervalues()
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def set_capability_type(self, capability_type):
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id = capability_type.namespace + ":" + capability_type.name
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self._capability_types[id] = capability_type
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self.__memory_to_file()
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return capability_type
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def put_capability_type(self, name, namespace, capability_type):
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id = namespace + ":" + name
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self._capability_types[id] = capability_type
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self.__memory_to_file()
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return capability_type
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def delete_capability_type(self, name, namespace):
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id = namespace + ":" + name
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capability_type = None
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if self._capability_types[id]:
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capability_type = self._capability_types[id]
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self._capability_types.pop(id)
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self.__memory_to_file()
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return capability_type
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def __file_to_memory(self):
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try:
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capability_types = {}
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with open(self._dictionaryfile, "r") as gfile:
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doc = json.load(gfile)
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for id in doc:
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capability_types[id] = fromjson(CapabilityType, doc[id])
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return capability_types
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except IOError:
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with open(self._dictionaryfile, "w+") as gfile:
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gfile.write("")
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return {}
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def __memory_to_file(self):
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file_capability_types = {}
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for (id, capability_type) in self._capability_types.items():
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json_data = tojson(CapabilityType, capability_type)
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file_capability_types[id] = json_data
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with open(self._dictionaryfile, "w+") as gfile:
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json.dump(file_capability_types, gfile)
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