Added A1 policy handler, healthcheck handler, sdl handler and alarm

[ric-app/hw-python.git] / src / handler / A1PolicyHandler.py

diff --git a/src/handler/A1PolicyHandler.py b/src/handler/A1PolicyHandler.py
new file mode 100644 (file)
index 0000000..b21a0ac
--- /dev/null
+++ b/src/handler/A1PolicyHandler.py
@@ -0,0 +1,60 @@
+# ==================================================================================
+#
+#       Copyright (c) 2020 Samsung Electronics Co., Ltd. All Rights Reserved.
+#
+#   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.
+#
+# ==================================================================================
+
+import json
+from ricxappframe.xapp_frame import RMRXapp, rmr
+from ..utils.constants import Constants
+from ._BaseHandler import _BaseHandler
+
+
+class A1PolicyHandler(_BaseHandler):
+
+    def __init__(self, rmr_xapp: RMRXapp, msgtype):
+        super().__init__(rmr_xapp, msgtype)
+
+    def request_handler(self, rmr_xapp, summary, sbuf):
+        self._rmr_xapp.rmr_free(sbuf)
+        try:
+            req = json.loads(summary[rmr.RMR_MS_PAYLOAD])  # input should be a json encoded as bytes
+            self.logger.debug("A1PolicyHandler.resp_handler:: Handler processing request")
+        except (json.decoder.JSONDecodeError, KeyError):
+            self.logger.error("A1PolicyManager.resp_handler:: Handler failed to parse request")
+            return
+
+        if self.verifyPolicy(req):
+            self.logger.info("A1PolicyHandler.resp_handler:: Handler processed request: {}".format(req))
+        else:
+            self.logger.error("A1PolicyHandler.resp_handler:: Request verification failed: {}".format(req))
+            return
+        self.logger.debug("A1PolicyHandler.resp_handler:: Request verification success: {}".format(req))
+
+        resp = self.buildPolicyResp(req)
+        self._rmr_xapp.rmr_send(json.dumps(resp).encode(), Constants.A1_POLICY_RESP)
+        self.logger.info("A1PolicyHandler.resp_handler:: Response sent: {}".format(resp))
+
+    def verifyPolicy(self, req: dict):
+        for i in ["policy_type_id", "operation", "policy_instance_id"]:
+            if i not in req:
+                return False
+        return True
+
+    def buildPolicyResp(self, req: dict):
+        req["handler_id"] = self._rmr_xapp.config["xapp_name"]
+        del req["operation"]
+        req["status"] = "OK"
+        return req