2 // ========================LICENSE_START=================================
5 // Copyright (C) 2021: Nordix Foundation
7 // Licensed under the Apache License, Version 2.0 (the "License");
8 // you may not use this file except in compliance with the License.
9 // You may obtain a copy of the License at
11 // http://www.apache.org/licenses/LICENSE-2.0
13 // Unless required by applicable law or agreed to in writing, software
14 // distributed under the License is distributed on an "AS IS" BASIS,
15 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 // See the License for the specific language governing permissions and
17 // limitations under the License.
18 // ========================LICENSE_END===================================
32 "github.com/gorilla/mux"
33 log "github.com/sirupsen/logrus"
34 "oransc.org/usecase/oruclosedloop/internal/config"
35 "oransc.org/usecase/oruclosedloop/internal/linkfailure"
36 "oransc.org/usecase/oruclosedloop/internal/repository"
37 "oransc.org/usecase/oruclosedloop/internal/restclient"
40 type Server interface {
41 ListenAndServe() error
44 const timeoutHTTPClient = time.Second * 5
45 const jobId = "14e7bb84-a44d-44c1-90b7-6995a92ad43c"
47 var jobRegistrationInfo = struct {
48 InfoTypeId string `json:"info_type_id"`
49 JobResultUri string `json:"job_result_uri"`
50 JobOwner string `json:"job_owner"`
51 JobDefinition interface{} `json:"job_definition"`
53 InfoTypeId: "STD_Fault_Messages",
55 JobOwner: "O-RU Closed Loop Usecase",
59 var client restclient.HTTPClient
60 var configuration *config.Config
61 var linkfailureConfig linkfailure.Configuration
62 var lookupService repository.LookupService
63 var consumerPort string
70 configuration = config.New()
72 log.SetLevel(configuration.LogLevel)
74 client = &http.Client{
75 Timeout: timeoutHTTPClient,
78 consumerPort = fmt.Sprint(configuration.ConsumerPort)
79 jobRegistrationInfo.JobResultUri = configuration.ConsumerHost + ":" + consumerPort
81 linkfailureConfig = linkfailure.Configuration{
82 SDNRAddress: configuration.SDNRHost + ":" + fmt.Sprint(configuration.SDNRPort),
83 SDNRUser: configuration.SDNRUser,
84 SDNRPassword: configuration.SDNPassword,
89 if err := validateConfiguration(configuration); err != nil {
90 log.Fatalf("Unable to start consumer due to configuration error: %v", err)
93 csvFileHelper := repository.NewCsvFileHelperImpl()
94 if initErr := initializeLookupService(csvFileHelper, configuration.ORUToODUMapFile); initErr != nil {
95 log.Fatalf("Unable to create LookupService due to inability to get O-RU-ID to O-DU-ID map. Cause: %v", initErr)
99 startServer(&http.Server{
100 Addr: ":" + consumerPort,
101 Handler: getRouter(),
104 os.Exit(1) // If the startServer function exits, it is because there has been a failure in the server, so we exit.
108 deleteOnShutdown(make(chan os.Signal, 1))
115 func validateConfiguration(configuration *config.Config) error {
116 if configuration.ConsumerHost == "" || configuration.ConsumerPort == 0 {
117 return fmt.Errorf("consumer host and port must be provided")
122 func initializeLookupService(csvFileHelper repository.CsvFileHelper, csvFile string) error {
123 lookupService = repository.NewLookupServiceImpl(csvFileHelper, csvFile)
124 return lookupService.Init()
127 func getRouter() *mux.Router {
128 messageHandler := linkfailure.NewLinkFailureHandler(lookupService, linkfailureConfig, client)
131 r.HandleFunc("/", messageHandler.MessagesHandler).Methods(http.MethodPost).Name("messageHandler")
132 r.HandleFunc("/admin/start", startHandler).Methods(http.MethodPost).Name("start")
133 r.HandleFunc("/admin/stop", stopHandler).Methods(http.MethodPost).Name("stop")
138 func startServer(server Server) {
139 if err := server.ListenAndServe(); err != nil {
140 log.Errorf("Server stopped unintentionally due to: %v. Deleteing job.", err)
141 if deleteErr := deleteJob(); deleteErr != nil {
142 log.Error(fmt.Sprintf("Unable to delete consumer job due to: %v. Please remove job %v manually.", deleteErr, jobId))
147 func keepConsumerAlive() {
148 forever := make(chan int)
152 func startHandler(w http.ResponseWriter, r *http.Request) {
153 body, _ := json.Marshal(jobRegistrationInfo)
154 putErr := restclient.PutWithoutAuth(configuration.InfoCoordinatorAddress+"/data-consumer/v1/info-jobs/"+jobId, body, client)
156 http.Error(w, fmt.Sprintf("Unable to register consumer job due to: %v.", putErr), http.StatusBadRequest)
159 log.Debug("Registered job.")
162 func stopHandler(w http.ResponseWriter, r *http.Request) {
163 deleteErr := deleteJob()
164 if deleteErr != nil {
165 http.Error(w, fmt.Sprintf("Unable to delete consumer job due to: %v. Please remove job %v manually.", deleteErr, jobId), http.StatusBadRequest)
168 log.Debug("Deleted job.")
171 func deleteOnShutdown(s chan os.Signal) {
172 signal.Notify(s, os.Interrupt)
173 signal.Notify(s, syscall.SIGTERM)
175 log.Info("Shutting down gracefully.")
176 if err := deleteJob(); err != nil {
177 log.Error(fmt.Sprintf("Unable to delete job on shutdown due to: %v. Please remove job %v manually.", err, jobId))
181 func deleteJob() error {
182 return restclient.Delete(configuration.InfoCoordinatorAddress+"/data-consumer/v1/info-jobs/"+jobId, client)