migrate moon code from github to opnfv

Change-Id: Ice53e368fd1114d56a75271aa9f2e598e3eba604
Signed-off-by: WuKong <rebirthmonkey@gmail.com>

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