VOL-1101: Implement a Twisted Python shim layer to interface with any KV store
* Current support is for Etcd and Consul only
* kv_client.py describes the interface
* consul_client.py contains the Consul implementation
* etcd_client.py contains the Etcd implementation
* kvstore.py contains a factory function
Change-Id: I895540eda13a78bc755adbba78a5716d7fa59612
diff --git a/common/kvstore/kvstore.py b/common/kvstore/kvstore.py
new file mode 100644
index 0000000..a7f7390
--- /dev/null
+++ b/common/kvstore/kvstore.py
@@ -0,0 +1,31 @@
+# Copyright 2017-present Open Networking 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 common.kvstore.consul_client import ConsulClient
+from common.kvstore.etcd_client import EtcdClient
+
+def create_kv_client(kv_store, host, port):
+ '''
+ Factory for creating a client interface to a KV store
+
+ :param kv_store: Specify either 'etcd' or 'consul'
+ :param host: Name or IP address of host serving the KV store
+ :param port: Port number (integer) of the KV service
+ :return: Reference to newly created client interface
+ '''
+ if kv_store == 'etcd':
+ return EtcdClient(host, port)
+ elif kv_store == 'consul':
+ return ConsulClient(host, port)
+ return None