aboutsummaryrefslogtreecommitdiffstats
path: root/keystone-moon/keystone/common/kvs/legacy.py
diff options
context:
space:
mode:
Diffstat (limited to 'keystone-moon/keystone/common/kvs/legacy.py')
-rw-r--r--keystone-moon/keystone/common/kvs/legacy.py60
1 files changed, 60 insertions, 0 deletions
diff --git a/keystone-moon/keystone/common/kvs/legacy.py b/keystone-moon/keystone/common/kvs/legacy.py
new file mode 100644
index 00000000..ba036016
--- /dev/null
+++ b/keystone-moon/keystone/common/kvs/legacy.py
@@ -0,0 +1,60 @@
+# 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
+
+
+class DictKvs(dict):
+ 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)
+
+ def set(self, key, value):
+ if isinstance(value, dict):
+ self[key] = value.copy()
+ else:
+ self[key] = value[:]
+
+ 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()
+
+
+class Base(object):
+ @versionutils.deprecated(versionutils.deprecated.ICEHOUSE,
+ in_favor_of='keystone.common.kvs.KeyValueStore',
+ remove_in=+2,
+ 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