Source code for keystone.common.kvs.legacy

# Copyright 2012 OpenStack Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

from keystone import exception
from keystone.openstack.common import versionutils


[docs]class DictKvs(dict):
[docs] def get(self, key, default=None): try: if isinstance(self[key], dict): return self[key].copy() else: return self[key][:] except KeyError: if default is not None: return default raise exception.NotFound(target=key)
[docs] def set(self, key, value): if isinstance(value, dict): self[key] = value.copy() else: self[key] = value[:]
[docs] def delete(self, key): """Deletes an item, returning True on success, False otherwise.""" try: del self[key] except KeyError: raise exception.NotFound(target=key)
INMEMDB = DictKvs()
[docs]class Base(object): @versionutils.deprecated(versionutils.deprecated.ICEHOUSE, in_favor_of='keystone.common.kvs.KeyValueStore', remove_in=+1, what='keystone.common.kvs.Base') def __init__(self, db=None): if db is None: db = INMEMDB elif isinstance(db, DictKvs): db = db elif isinstance(db, dict): db = DictKvs(db) self.db = db