--- /dev/null
+
+# ============LICENSE_START===============================================
+# Copyright (C) 2021 Nordix Foundation. 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.
+# ============LICENSE_END=================================================
+#
+
+import argparse
+import ast
+import json
+import os
+import requests
+import time
+
+MR_PATH = "/events/[TOPIC]/users/test/"
+SDNR_PATH = "/rests/data/network-topology:network-topology/topology=topology-netconf/node=[O-DU-ID]/yang-ext:mount/o-ran-sc-du-hello-world:network-function/du-to-ru-connection=[O-RU-ID]"
+
+UNLOCK_MESSAGE = {
+ "o-ran-sc-du-hello-world:du-to-ru-connection": [
+ {
+ "name":"",
+ "administrative-state":"UNLOCKED"
+ }
+ ]
+}
+
+
+def is_message_new_link_failure(message):
+ msg_as_json = json.loads(message)
+ event_headers = msg_as_json["event"]["commonEventHeader"]
+
+ link_failure = False
+ if (event_headers["domain"] == "fault"):
+ fault_fields = msg_as_json["event"]["faultFields"]
+ link_failure = fault_fields["alarmCondition"] == "30" and fault_fields["eventSeverity"] != "NORMAL"
+
+ return link_failure
+
+
+def is_message_clear_link_failure(message):
+ msg_as_json = json.loads(message)
+ event_headers = msg_as_json["event"]["commonEventHeader"]
+
+ link_failure_clear = False
+ if (event_headers["domain"] == "fault"):
+ fault_fields = msg_as_json["event"]["faultFields"]
+ link_failure_clear = fault_fields["alarmCondition"] == "30" and fault_fields["eventSeverity"] == "NORMAL"
+
+ return link_failure_clear
+
+
+def handle_link_failure(message, o_ru_to_o_du_map, sdnr_address):
+ verboseprint("Got a link failure: ")
+ alarm_msg_as_json = json.loads(message)
+ event_headers = alarm_msg_as_json["event"]["commonEventHeader"]
+ o_ru_id = event_headers["sourceName"]
+ verboseprint("O-RU ID: " + o_ru_id)
+ o_du_id = o_ru_to_o_du_map[o_ru_id]
+ verboseprint("O-DU ID: " + o_du_id)
+ unlock_msg = json.loads(json.dumps(UNLOCK_MESSAGE))
+ unlock_msg["o-ran-sc-du-hello-world:du-to-ru-connection"][0]["name"] = o_ru_id
+ send_path = SDNR_PATH.replace("[O-DU-ID]", o_du_id).replace("[O-RU-ID]", o_ru_id)
+ requests.post(sdnr_address + send_path, json=unlock_msg)
+
+
+def handle_clear_link_failure(message):
+ msg_as_json = json.loads(message)
+ event_headers = msg_as_json["event"]["commonEventHeader"]
+ o_ru_id = event_headers["sourceName"]
+ verboseprint("Cleared Link Failure for O-RU ID: " + o_ru_id)
+
+
+def read_o_ru_to_o_du_map_from_file(map_file):
+ file = open(map_file, "r")
+ contents = file.read()
+ dictionary = ast.literal_eval(contents)
+ file.close()
+ return dictionary
+
+
+if __name__ == '__main__':
+ parser = argparse.ArgumentParser(prog='PROG')
+ parser.add_argument('--mrHost', help='The URL of the MR host (default: %(default)s)', default="http://message-router.onap")
+ parser.add_argument('--mrPort', help='The port of the MR host (default: %(default)d)', type=int, default=3904)
+ parser.add_argument('--mrTopic', help='The topic to poll messages from (default: %(default)s)', default="unauthenticated.SEC_FAULT_OUTPUT")
+ parser.add_argument('--sdnrHost', help='The URL of the SNDR host (default: %(default)s)', default="http://localhost")
+ parser.add_argument('--sdnrPort', help='The port of the SDNR host (default: %(default)d)', type=int, default=9990)
+ parser.add_argument('--oRuTooDuMapFile', help='A file with the mapping between O-RU ID and O-DU ID as a dictionary (default: %(default)s)', default="o-ru-to-o-du-map.txt")
+ parser.add_argument('--pollTime', help='The time between polls (default: %(default)d)', type=int, default=10)
+ parser.add_argument('-v', '--verbose', action='store_true', help='Turn on verbose printing')
+ parser.add_argument('--version', action='version', version='%(prog)s 1.0')
+ args = vars(parser.parse_args())
+ mr_host = args["mrHost"]
+ if os.getenv("MR-HOST") is not None:
+ mr_host = os.getenv("MR-HOST")
+ print("Using MR Host from os: " + mr_host)
+ mr_port = args["mrPort"]
+ if os.getenv("MR-PORT") is not None:
+ mr_port = os.getenv("MR-PORT")
+ print("Using MR Port from os: " + mr_port)
+ mr_topic = args["mrTopic"]
+ sdnr_host = args["sdnrHost"]
+ if os.getenv("SDNR-HOST") is not None:
+ sdnr_host = os.getenv("SDNR-HOST")
+ print("Using SNDR Host from os: " + sdnr_host)
+ sdnr_port = args["sdnrPort"]
+ if os.getenv("SDNR-PORT") is not None:
+ sdnr_port = os.getenv("SDNR-PORT")
+ print("Using SNDR Host from os: " + sdnr_port)
+ o_ru_to_o_du_map = read_o_ru_to_o_du_map_from_file(args["oRuTooDuMapFile"])
+ pollTime = args["pollTime"]
+
+ if os.getenv("VERBOSE") is not None or args["verbose"]:
+
+ def verboseprint(*args, **kwargs):
+ print(*args, **kwargs)
+
+ else:
+ verboseprint = lambda *a, **k: None # do-nothing function
+
+ verboseprint("Using MR address: " + mr_host + ":" + str(mr_port) + " and topic: " + mr_topic)
+ verboseprint("Using SDNR address: " + sdnr_host + ":" + str(sdnr_port))
+ verboseprint("Starting with " + str(pollTime) + " seconds between polls")
+ mr_address = mr_host + ":" + str(mr_port) + MR_PATH.replace("[TOPIC]", mr_topic)
+ sdnr_address = sdnr_host + ":" + str(sdnr_port)
+
+ while True:
+ try:
+ verboseprint("Polling")
+ response = requests.get(mr_address)
+ messages = response.json()
+ for message in messages:
+ if (is_message_new_link_failure(message)):
+ handle_link_failure(message, o_ru_to_o_du_map, sdnr_address)
+ elif (is_message_clear_link_failure(message)):
+ handle_clear_link_failure(message)
+ except Exception as inst:
+ print(inst)
+
+ time.sleep(pollTime)
Code Review / nonrtric.git / blobdiff