Initial commit moving openolt adapter from voltha-go to the new repo.
This version works with ponsim rather than openolt, this is temporary.
It is currently being fixed to work with openolt.
Change-Id: I34a800c98f050140b367e2d474b7aa8b79f34b9a
Signed-off-by: William Kurkian <wkurkian@cisco.com>
diff --git a/python/adapters/common/pon_resource_manager/resource_kv_store.py b/python/adapters/common/pon_resource_manager/resource_kv_store.py
new file mode 100644
index 0000000..a1a5c14
--- /dev/null
+++ b/python/adapters/common/pon_resource_manager/resource_kv_store.py
@@ -0,0 +1,107 @@
+#
+# Copyright 2018 the original author or authors.
+#
+# 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.
+#
+
+"""Resource KV store - interface between Resource Manager and backend store."""
+import structlog
+
+from voltha.core.config.config_backend import ConsulStore
+from voltha.core.config.config_backend import EtcdStore
+
+# KV store uses this prefix to store resource info
+PATH_PREFIX = 'resource_manager/{}'
+
+
+class ResourceKvStore(object):
+ """Implements apis to store/get/remove resource in backend store."""
+
+ def __init__(self, technology, device_id, backend, host, port):
+ """
+ Create ResourceKvStore object.
+
+ Based on backend ('consul' and 'etcd' use the host and port
+ to create the respective object.
+
+ :param technology: PON technology
+ :param device_id: OLT device id
+ :param backend: Type of backend storage (etcd or consul)
+ :param host: host ip info for backend storage
+ :param port: port for the backend storage
+ :raises exception when invalid backend store passed as an argument
+ """
+ # logger
+ self._log = structlog.get_logger()
+
+ path = PATH_PREFIX.format(technology)
+ try:
+ if backend == 'consul':
+ self._kv_store = ConsulStore(host, port, path)
+ elif backend == 'etcd':
+ self._kv_store = EtcdStore(host, port, path)
+ else:
+ self._log.error('Invalid-backend')
+ raise Exception("Invalid-backend-for-kv-store")
+ except Exception as e:
+ self._log.exception("exception-in-init")
+ raise Exception(e)
+
+ def update_to_kv_store(self, path, resource):
+ """
+ Update resource.
+
+ :param path: path to update the resource
+ :param resource: updated resource
+ """
+ try:
+ self._kv_store[path] = str(resource)
+ self._log.debug("Resource-updated-in-kv-store", path=path)
+ return True
+ except BaseException:
+ self._log.exception("Resource-update-in-kv-store-failed",
+ path=path, resource=resource)
+ return False
+
+ def get_from_kv_store(self, path):
+ """
+ Get resource.
+
+ :param path: path to get the resource
+ """
+ resource = None
+ try:
+ resource = self._kv_store[path]
+ self._log.debug("Got-resource-from-kv-store", path=path)
+ except KeyError:
+ self._log.info("Resource-not-found-updating-resource",
+ path=path)
+ except BaseException:
+ self._log.exception("Getting-resource-from-kv-store-failed",
+ path=path)
+ return resource
+
+ def remove_from_kv_store(self, path):
+ """
+ Remove resource.
+
+ :param path: path to remove the resource
+ """
+ try:
+ del self._kv_store[path]
+ self._log.debug("Resource-deleted-in-kv-store", path=path)
+ return True
+ except BaseException:
+ self._log.exception("Resource-delete-in-kv-store-failed",
+ path=path)
+ return False