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

[ric-app/hw-python.git] / src / manager / SdlAlarmManager.py

diff --git a/src/manager/SdlAlarmManager.py b/src/manager/SdlAlarmManager.py
new file mode 100644 (file)
index 0000000..dc5bd7b
--- /dev/null
+++ b/src/manager/SdlAlarmManager.py
@@ -0,0 +1,48 @@
+# ==================================================================================
+#
+#       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.
+#
+# ==================================================================================
+
+from ricxappframe.xapp_frame import RMRXapp
+from ricxappframe.alarm import alarm
+from ._BaseManager import _BaseManager
+
+
+# noinspection PyProtectedMember,PyProtectedMember
+class SdlAlarmManager(_BaseManager):
+
+    def __init__(self, rmr_xapp: RMRXapp):
+        super().__init__(rmr_xapp)
+        self.alarm_mgr = alarm.AlarmManager(self._rmr_xapp._mrc, "ric-xapp", "hw-python")
+        self.alarm_sdl = None
+
+    def checkSdl(self):
+        if self._rmr_xapp._sdl.healthcheck():
+            # healthy, so clear the alarm if it was raised
+            if self.alarm_sdl:
+                self.logger.info("SdlAlarmManager:: clearing alarm")
+                self.alarm_mgr.clear_alarm(self.alarm_sdl)
+                self.alarm_sdl = None
+        else:
+            # not healthy, so (re-)raise the alarm
+            self.logger.info("SdlAlarmManager:: connection to SDL is not healthy, raising alarm")
+            if self.alarm_sdl:
+                self.alarm_mgr.reraise_alarm(self.alarm_sdl)
+            else:
+                self.alarm_sdl = self.alarm_mgr.create_alarm(1, alarm.AlarmSeverity.CRITICAL,
+                                                             "SdlAlarmManager:: SDL failure")
+                self.alarm_mgr.raise_alarm(self.alarm_sdl)
+            self.logger.warning("SdlAlarmManager:: dropping request!")