X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=near-rt-ric-simulator%2Ftest%2FEXT_SRV%2Fsrc%2Fserver.py;fp=near-rt-ric-simulator%2Ftest%2FEXT_SRV%2Fsrc%2Fserver.py;h=77286be13e180f308f3bf00030e2779696712d7b;hb=5ce1086464f022cfbc673062d3b9a1ec6ed3c7dc;hp=0000000000000000000000000000000000000000;hpb=3f519ca2fddb18c6e5a81fc800b9fefc4d3f8f69;p=sim%2Fa1-interface.git diff --git a/near-rt-ric-simulator/test/EXT_SRV/src/server.py b/near-rt-ric-simulator/test/EXT_SRV/src/server.py new file mode 100644 index 0000000..77286be --- /dev/null +++ b/near-rt-ric-simulator/test/EXT_SRV/src/server.py @@ -0,0 +1,164 @@ +# ============LICENSE_START=============================================== +# Copyright (C) 2022 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 copy +import datetime +import json +import logging +import collections +import time + +from flask import Flask, escape, request, Response, make_response +from jsonschema import validate +from var_declaration import a1_policy_instances, forced_settings + + +#Constsants +APPL_JSON='application/json' +APPL_PROB_JSON='application/problem+json' + +#Python implementation of EXT_SRV_api.yaml - Open API - + +# API Function: Get all a1 policy ids +def get_all_a1_policies(): + + if ((r := check_modified_response()) is not None): + return r + + res = list(a1_policy_instances) + return (res, 200) + +# API Function: Get A1 policy +def get_a1_policy(a1policyId): + + if ((r := check_modified_response()) is not None): + return r + + a1_policy_id=str(a1policyId) + + policykeys=a1_policy_instances.keys() + if (a1_policy_id not in policykeys): + pjson=create_problem_json(None, "The A1 policy requested does not exist.", 404, None, a1_policy_id) + return Response(json.dumps(pjson), 404, mimetype=APPL_PROB_JSON) + + return Response(json.dumps(a1_policy_instances[a1_policy_id]), 200, mimetype=APPL_JSON) + +# API Function: Create or update a a1policy +def put_a1_policy(a1policyId): + + if ((r := check_modified_response()) is not None): + return r + + a1_policy_id=str(a1policyId) + + try: + data = request.data + data = json.loads(data) + except Exception: + pjson=create_problem_json(None, "The a1policy is corrupt or missing.", 400, None, a1_policy_id) + return Response(json.dumps(pjson), 400, mimetype=APPL_PROB_JSON) + + policykeys=a1_policy_instances.keys() + + retcode=201 + if a1_policy_id in policykeys: + retcode=200 + + a1_policy_instances[a1_policy_id]=data + + if (retcode == 200): + return Response(json.dumps(data), 200, mimetype=APPL_JSON) + else: + headers={} + headers['Location']='/a1policy/' + a1_policy_id + return Response(json.dumps(data), 201, headers=headers, mimetype=APPL_JSON) + +# API Function: Delete a a1policy +def delete_a1_policy(a1policyId): + + if ((r := check_modified_response()) is not None): + return r + + a1_policy_id=str(a1policyId) + + policykeys=a1_policy_instances.keys() + if (a1_policy_id not in policykeys): + pjson=create_problem_json(None, "The a1policy does not exist.", 404, None, a1_policy_id) + return Response(json.dumps(pjson), 404, mimetype=APPL_PROB_JSON) + + del a1_policy_instances[a1_policy_id] + return Response('', 204, mimetype=APPL_JSON) + + +# Helper: Create a response object if forced http response code is set +def get_forced_response(): + if (forced_settings['code'] is not None): + pjson=create_error_response(forced_settings['code']) + return Response(json.dumps(pjson), pjson['status'], mimetype=APPL_PROB_JSON) + return None + + +# Helper: Delay if delayed response code is set +def do_delay(): + if (forced_settings['delay'] is not None): + try: + val=int(forced_settings['delay']) + time.sleep(val) + except Exception: + return + + +# Helper: Check if response shall be delayed or a forced response shall be sent +def check_modified_response(): + do_delay() + return get_forced_response() + + +# Helper: Create a problem json object +def create_problem_json(type_of, title, status, detail, instance): + error = {} + if type_of is not None: + error["type"] = type_of + if title is not None: + error["title"] = title + if status is not None: + error["status"] = status + if detail is not None: + error["detail"] = detail + if instance is not None: + error["instance"] = instance + return error + + +# Helper: Create a problem json based on a generic http response code +def create_error_response(code): + if code == 400: + return(create_problem_json(None, "Bad request", 400, "Object in payload not properly formulated or not related to the method", None)) + elif code == 404: + return(create_problem_json(None, "Not found", 404, "No resource found at the URI", None)) + elif code == 405: + return(create_problem_json(None, "Method not allowed", 405, "Method not allowed for the URI", None)) + elif code == 409: + return(create_problem_json(None, "Conflict", 409, "Request could not be processed in the current state of the resource", None)) + elif code == 429: + return(create_problem_json(None, "Too many requests", 429, "Too many requests have been sent in a given amount of time", None)) + elif code == 507: + return(create_problem_json(None, "Insufficient storage", 507, "The method could not be performed on the resource because the provider is unable to store the representation needed to successfully complete the request", None)) + elif code == 503: + return(create_problem_json(None, "Service unavailable", 503, "The provider is currently unable to handle the request due to a temporary overload", None)) + else: + return(create_problem_json(None, "Unknown", code, "Not implemented response code", None))