1 # -------------------------------------------------------------------------
2 # Copyright (c) 2018 AT&T Intellectual Property
4 # Licensed under the Apache License, Version 2.0 (the "License");
5 # you may not use this file except in compliance with the License.
6 # You may obtain a copy of the License at
8 # http://www.apache.org/licenses/LICENSE-2.0
10 # Unless required by applicable law or agreed to in writing, software
11 # distributed under the License is distributed on an "AS IS" BASIS,
12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 # See the License for the specific language governing permissions and
14 # limitations under the License.
16 # -------------------------------------------------------------------------
21 from onaplogging.mdcContext import MDC
22 from requests import RequestException
24 from apps.pci.optimizers.config_request import request as config_request
25 from apps.pci.optimizers.solver.optimizer import pci_optimize as optimize
26 from apps.pci.optimizers.solver.pci_utils import get_cell_id
27 from apps.pci.optimizers.solver.pci_utils import get_pci_value
28 from osdf.logging.osdf_logging import error_log
29 from osdf.logging.osdf_logging import metrics_log
30 from osdf.logging.osdf_logging import MH
31 from osdf.operation.error_handling import build_json_error_body
32 from osdf.utils.interfaces import get_rest_client
33 from osdf.utils.mdc_utils import mdc_from_json
36 This application generates PCI Optimization API calls using the information received from PCI-Handler-MS, SDN-C
41 def process_pci_optimation(request_json, osdf_config, flat_policies):
42 """Process a PCI request from a Client (build config-db, policy and API call, make the call, return result)
44 :param req_object: Request parameters from the client
45 :param osdf_config: Configuration specific to OSDF application (core + deployment)
46 :param flat_policies: policies related to pci (fetched based on request)
47 :return: response from PCI Opt
50 mdc_from_json(request_json)
51 rc = get_rest_client(request_json, service="pcih")
52 req_id = request_json["requestInfo"]["requestId"]
53 cell_info_list, network_cell_info = config_request(request_json, osdf_config, flat_policies)
54 pci_response = get_solutions(cell_info_list, network_cell_info, request_json)
56 metrics_log.info(MH.inside_worker_thread(req_id))
57 except Exception as err:
58 error_log.error("Error for {} {}".format(req_id, traceback.format_exc()))
61 body = build_json_error_body(err)
62 metrics_log.info(MH.sending_response(req_id, "ERROR"))
63 rc.request(json=body, noresponse=True)
64 except RequestException:
65 MDC.put('requestID', req_id)
66 error_log.error("Error sending asynchronous notification for {} {}".format(req_id, traceback.format_exc()))
70 metrics_log.info(MH.calling_back_with_body(req_id, rc.url, pci_response))
71 error_log.error("pci response: {}".format(str(pci_response)))
72 rc.request(json=pci_response, noresponse=True)
73 except RequestException: # can't do much here but log it and move on
74 error_log.error("Error sending asynchronous notification for {} {}".format(req_id, traceback.format_exc()))
77 def get_solutions(cell_info_list, network_cell_info, request_json):
78 status, pci_solutions, anr_solutions = build_solution_list(cell_info_list, network_cell_info, request_json)
80 "transactionId": request_json['requestInfo']['transactionId'],
81 "requestId": request_json["requestInfo"]["requestId"],
82 "requestStatus": "completed",
83 "statusMessage": status,
85 'networkId': request_json['cellInfo']['networkId'],
86 'pciSolutions': pci_solutions,
87 'anrSolutions': anr_solutions
92 def build_solution_list(cell_info_list, network_cell_info, request_json):
94 req_id = request_json["requestInfo"]["requestId"]
98 opt_solution = optimize(network_cell_info, cell_info_list, request_json)
99 if opt_solution == 'UNSATISFIABLE':
100 status = 'inconsistent input'
101 return status, pci_solutions, anr_solutions
103 pci_solutions = build_pci_solution(network_cell_info, opt_solution['pci'])
104 anr_solutions = build_anr_solution(network_cell_info, opt_solution.get('removables', {}))
106 error_log.error("Failed finding solution for {} {}".format(req_id, traceback.format_exc()))
108 return status, pci_solutions, anr_solutions
111 def build_pci_solution(network_cell_info, pci_solution):
113 for k, v in pci_solution.items():
114 old_pci = get_pci_value(network_cell_info, k)
117 'cellId': get_cell_id(network_cell_info, k),
120 pci_solutions.append(response)
124 def build_anr_solution(network_cell_info, removables):
126 for k, v in removables.items():
128 'cellId': get_cell_id(network_cell_info, k),
129 'removeableNeighbors': list(map(lambda x: get_cell_id(network_cell_info, x), v))
131 anr_solutions.append(response)