2 # ============LICENSE_START===============================================
3 # Copyright (C) 2021 Nordix Foundation. All rights reserved.
4 # ========================================================================
5 # Licensed under the Apache License, Version 2.0 (the "License");
6 # you may not use this file except in compliance with the License.
7 # You may obtain a copy of the License at
9 # http://www.apache.org/licenses/LICENSE-2.0
11 # Unless required by applicable law or agreed to in writing, software
12 # distributed under the License is distributed on an "AS IS" BASIS,
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 # See the License for the specific language governing permissions and
15 # limitations under the License.
16 # ============LICENSE_END=================================================
26 MR_PATH = "/events/[TOPIC]/users/test/"
27 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]"
31 "o-ran-sc-du-hello-world:du-to-ru-connection": [
34 "administrative-state":"UNLOCKED"
40 def is_message_new_link_failure(message):
41 msg_as_json = json.loads(message)
42 event_headers = msg_as_json["event"]["commonEventHeader"]
45 if (event_headers["domain"] == "fault"):
46 fault_fields = msg_as_json["event"]["faultFields"]
47 link_failure = fault_fields["alarmCondition"] == FAUILT_ID and fault_fields["eventSeverity"] != "NORMAL"
52 def is_message_clear_link_failure(message):
53 msg_as_json = json.loads(message)
54 event_headers = msg_as_json["event"]["commonEventHeader"]
56 link_failure_clear = False
57 if (event_headers["domain"] == "fault"):
58 fault_fields = msg_as_json["event"]["faultFields"]
59 link_failure_clear = fault_fields["alarmCondition"] == FAUILT_ID and fault_fields["eventSeverity"] == "NORMAL"
61 return link_failure_clear
64 def handle_link_failure(message, o_ru_to_o_du_map, sdnr_address):
65 verboseprint("Got a link failure: ")
66 alarm_msg_as_json = json.loads(message)
67 event_headers = alarm_msg_as_json["event"]["commonEventHeader"]
68 o_ru_id = event_headers["sourceName"]
69 verboseprint("O-RU ID: " + o_ru_id)
70 o_du_id = o_ru_to_o_du_map[o_ru_id]
71 verboseprint("O-DU ID: " + o_du_id)
72 unlock_msg = json.loads(json.dumps(UNLOCK_MESSAGE))
73 unlock_msg["o-ran-sc-du-hello-world:du-to-ru-connection"][0]["name"] = o_ru_id
74 send_path = SDNR_PATH.replace("[O-DU-ID]", o_du_id).replace("[O-RU-ID]", o_ru_id)
75 requests.post(sdnr_address + send_path, json=unlock_msg)
78 def handle_clear_link_failure(message):
79 msg_as_json = json.loads(message)
80 event_headers = msg_as_json["event"]["commonEventHeader"]
81 o_ru_id = event_headers["sourceName"]
82 verboseprint("Cleared Link Failure for O-RU ID: " + o_ru_id)
85 def read_o_ru_to_o_du_map_from_file(map_file):
86 file = open(map_file, "r")
87 contents = file.read()
88 dictionary = ast.literal_eval(contents)
93 def poll_and_handle_messages(mr_address, sdnr_address):
96 verboseprint("Polling")
97 response = requests.get(mr_address)
98 messages = response.json()
99 for message in messages:
100 if (is_message_new_link_failure(message)):
101 handle_link_failure(message, o_ru_to_o_du_map, sdnr_address)
102 elif (is_message_clear_link_failure(message)):
103 handle_clear_link_failure(message)
104 except Exception as inst:
110 if __name__ == '__main__':
111 parser = argparse.ArgumentParser(prog='PROG')
112 parser.add_argument('--mrHost', help='The URL of the MR host (default: %(default)s)', default="http://message-router.onap")
113 parser.add_argument('--mrPort', help='The port of the MR host (default: %(default)d)', type=int, default=3904)
114 parser.add_argument('--mrTopic', help='The topic to poll messages from (default: %(default)s)', default="unauthenticated.SEC_FAULT_OUTPUT")
115 parser.add_argument('--sdnrHost', help='The URL of the SNDR host (default: %(default)s)', default="http://localhost")
116 parser.add_argument('--sdnrPort', help='The port of the SDNR host (default: %(default)d)', type=int, default=9990)
117 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")
118 parser.add_argument('--pollTime', help='The time between polls (default: %(default)d)', type=int, default=10)
119 parser.add_argument('-v', '--verbose', action='store_true', help='Turn on verbose printing')
120 parser.add_argument('--version', action='version', version='%(prog)s 1.0')
121 args = vars(parser.parse_args())
122 mr_host = args["mrHost"]
123 if os.getenv("MR-HOST") is not None:
124 mr_host = os.getenv("MR-HOST")
125 print("Using MR Host from os: " + mr_host)
126 mr_port = args["mrPort"]
127 if os.getenv("MR-PORT") is not None:
128 mr_port = os.getenv("MR-PORT")
129 print("Using MR Port from os: " + mr_port)
130 mr_topic = args["mrTopic"]
131 sdnr_host = args["sdnrHost"]
132 if os.getenv("SDNR-HOST") is not None:
133 sdnr_host = os.getenv("SDNR-HOST")
134 print("Using SNDR Host from os: " + sdnr_host)
135 sdnr_port = args["sdnrPort"]
136 if os.getenv("SDNR-PORT") is not None:
137 sdnr_port = os.getenv("SDNR-PORT")
138 print("Using SNDR Host from os: " + sdnr_port)
139 o_ru_to_o_du_map = read_o_ru_to_o_du_map_from_file(args["oRuTooDuMapFile"])
140 pollTime = args["pollTime"]
142 if os.getenv("VERBOSE") is not None or args["verbose"]:
144 def verboseprint(*args, **kwargs):
145 print(*args, **kwargs)
148 verboseprint = lambda *a, **k: None # do-nothing function
150 verboseprint("Using MR address: " + mr_host + ":" + str(mr_port) + " and topic: " + mr_topic)
151 verboseprint("Using SDNR address: " + sdnr_host + ":" + str(sdnr_port))
152 verboseprint("Starting with " + str(pollTime) + " seconds between polls")
153 mr_address = mr_host + ":" + str(mr_port) + MR_PATH.replace("[TOPIC]", mr_topic)
154 sdnr_address = sdnr_host + ":" + str(sdnr_port)
156 poll_and_handle_messages(mr_address, sdnr_address)