"encoding/json"
"fmt"
"net/http"
+ "os"
+ "os/signal"
+ "syscall"
"time"
"github.com/gorilla/mux"
"oransc.org/usecase/oruclosedloop/internal/restclient"
)
+type Server interface {
+ ListenAndServe() error
+}
+
const timeoutHTTPClient = time.Second * 5
const jobId = "14e7bb84-a44d-44c1-90b7-6995a92ad43c"
-var infoCoordAddress string
+var jobRegistrationInfo = struct {
+ InfoTypeId string `json:"info_type_id"`
+ JobResultUri string `json:"job_result_uri"`
+ JobOwner string `json:"job_owner"`
+ JobDefinition interface{} `json:"job_definition"`
+}{
+ InfoTypeId: "STD_Fault_Messages",
+ JobResultUri: "",
+ JobOwner: "O-RU Closed Loop Usecase",
+ JobDefinition: "{}",
+}
+
+var client restclient.HTTPClient
+var configuration *config.Config
var linkfailureConfig linkfailure.Configuration
var lookupService repository.LookupService
-var host string
-var port string
-var client restclient.HTTPClient
+var consumerPort string
func init() {
- configuration := config.New()
+ doInit()
+}
+
+func doInit() {
+ configuration = config.New()
+
+ log.SetLevel(configuration.LogLevel)
client = &http.Client{
Timeout: timeoutHTTPClient,
}
- log.SetLevel(configuration.LogLevel)
+ consumerPort = fmt.Sprint(configuration.ConsumerPort)
+ jobRegistrationInfo.JobResultUri = configuration.ConsumerHost + ":" + consumerPort
+
+ linkfailureConfig = linkfailure.Configuration{
+ SDNRAddress: configuration.SDNRHost + ":" + fmt.Sprint(configuration.SDNRPort),
+ SDNRUser: configuration.SDNRUser,
+ SDNRPassword: configuration.SDNPassword,
+ }
+}
+func main() {
if err := validateConfiguration(configuration); err != nil {
- log.Fatalf("Unable to start consumer due to: %v", err)
+ log.Fatalf("Unable to start consumer due to configuration error: %v", err)
}
- host = configuration.ConsumerHost
- port = fmt.Sprint(configuration.ConsumerPort)
csvFileHelper := repository.NewCsvFileHelperImpl()
- if initErr := initializeLookupService(csvFileHelper, configuration); initErr != nil {
+ if initErr := initializeLookupService(csvFileHelper, configuration.ORUToODUMapFile); initErr != nil {
log.Fatalf("Unable to create LookupService due to inability to get O-RU-ID to O-DU-ID map. Cause: %v", initErr)
}
- infoCoordAddress = configuration.InfoCoordinatorAddress
+ go func() {
+ startServer(&http.Server{
+ Addr: ":" + consumerPort,
+ Handler: getRouter(),
+ })
+ os.Exit(1) // If the startServer function exits, it is because there has been a failure in the server, so we exit.
+ }()
- linkfailureConfig = linkfailure.Configuration{
- SDNRAddress: configuration.SDNRHost + ":" + fmt.Sprint(configuration.SDNRPort),
- SDNRUser: configuration.SDNRUser,
- SDNRPassword: configuration.SDNPassword,
- }
+ go func() {
+ deleteOnShutdown(make(chan os.Signal, 1))
+ os.Exit(0)
+ }()
+
+ keepConsumerAlive()
}
func validateConfiguration(configuration *config.Config) error {
return nil
}
-func initializeLookupService(csvFileHelper repository.CsvFileHelper, configuration *config.Config) error {
- lookupService = repository.NewLookupServiceImpl(csvFileHelper, configuration.ORUToODUMapFile)
- if initErr := lookupService.Init(); initErr != nil {
- return initErr
- }
- return nil
+func initializeLookupService(csvFileHelper repository.CsvFileHelper, csvFile string) error {
+ lookupService = repository.NewLookupServiceImpl(csvFileHelper, csvFile)
+ return lookupService.Init()
}
-func main() {
- defer deleteJob()
+func getRouter() *mux.Router {
messageHandler := linkfailure.NewLinkFailureHandler(lookupService, linkfailureConfig, client)
+
r := mux.NewRouter()
- r.HandleFunc("/", messageHandler.MessagesHandler).Methods(http.MethodPost)
- r.HandleFunc("/admin/start", startHandler).Methods(http.MethodPost)
- r.HandleFunc("/admin/stop", stopHandler).Methods(http.MethodPost)
- log.Error(http.ListenAndServe(":"+port, r))
+ r.HandleFunc("/", messageHandler.MessagesHandler).Methods(http.MethodPost).Name("messageHandler")
+ r.HandleFunc("/admin/start", startHandler).Methods(http.MethodPost).Name("start")
+ r.HandleFunc("/admin/stop", stopHandler).Methods(http.MethodPost).Name("stop")
+
+ return r
}
-func startHandler(w http.ResponseWriter, r *http.Request) {
- jobRegistrationInfo := struct {
- InfoTypeId string `json:"info_type_id"`
- JobResultUri string `json:"job_result_uri"`
- JobOwner string `json:"job_owner"`
- JobDefinition interface{} `json:"job_definition"`
- }{
- InfoTypeId: "STD_Fault_Messages",
- JobResultUri: host + ":" + port,
- JobOwner: "O-RU Closed Loop Usecase",
- JobDefinition: "{}",
+func startServer(server Server) {
+ if err := server.ListenAndServe(); err != nil {
+ log.Errorf("Server stopped unintentionally due to: %v. Deleteing job.", err)
+ if deleteErr := deleteJob(); deleteErr != nil {
+ log.Error(fmt.Sprintf("Unable to delete consumer job due to: %v. Please remove job %v manually.", deleteErr, jobId))
+ }
}
+}
+
+func keepConsumerAlive() {
+ forever := make(chan int)
+ <-forever
+}
+
+func startHandler(w http.ResponseWriter, r *http.Request) {
body, _ := json.Marshal(jobRegistrationInfo)
- putErr := restclient.PutWithoutAuth(infoCoordAddress+"/data-consumer/v1/info-jobs/"+jobId, body, client)
+ putErr := restclient.PutWithoutAuth(configuration.InfoCoordinatorAddress+"/data-consumer/v1/info-jobs/"+jobId, body, client)
if putErr != nil {
- http.Error(w, fmt.Sprintf("Unable to register consumer job: %v", putErr), http.StatusBadRequest)
+ http.Error(w, fmt.Sprintf("Unable to register consumer job due to: %v.", putErr), http.StatusBadRequest)
return
}
log.Debug("Registered job.")
func stopHandler(w http.ResponseWriter, r *http.Request) {
deleteErr := deleteJob()
if deleteErr != nil {
- http.Error(w, fmt.Sprintf("Unable to delete consumer job: %v", deleteErr), http.StatusBadRequest)
+ http.Error(w, fmt.Sprintf("Unable to delete consumer job due to: %v. Please remove job %v manually.", deleteErr, jobId), http.StatusBadRequest)
return
}
log.Debug("Deleted job.")
}
+func deleteOnShutdown(s chan os.Signal) {
+ signal.Notify(s, os.Interrupt)
+ signal.Notify(s, syscall.SIGTERM)
+ <-s
+ log.Info("Shutting down gracefully.")
+ if err := deleteJob(); err != nil {
+ log.Error(fmt.Sprintf("Unable to delete job on shutdown due to: %v. Please remove job %v manually.", err, jobId))
+ }
+}
+
func deleteJob() error {
- return restclient.Delete(infoCoordAddress+"/data-consumer/v1/info-jobs/"+jobId, client)
+ return restclient.Delete(configuration.InfoCoordinatorAddress+"/data-consumer/v1/info-jobs/"+jobId, client)
}
Code Review / nonrtric.git / blobdiff