E2Manager/main/http_server.go

   1 //
   2 // Copyright 2019 AT&T Intellectual Property
   3 // Copyright 2019 Nokia
   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
   8 //
   9 //      http://www.apache.org/licenses/LICENSE-2.0
  10 //
  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 //
  17
  18 package main
  19
  20 import (
  21         "e2mgr/configuration"
  22         "e2mgr/controllers"
  23         "e2mgr/logger"
  24         "e2mgr/managers"
  25         "e2mgr/managers/notificationmanager"
  26         "e2mgr/models"
  27         "e2mgr/rNibWriter"
  28         "e2mgr/rmrCgo"
  29         "e2mgr/services"
  30         "e2mgr/services/receivers"
  31         "fmt"
  32         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/reader"
  33         "github.com/gorilla/mux"
  34         "log"
  35         "net/http"
  36         "os"
  37 )
  38
  39 const MAX_RNIB_POOL_INSTANCES = 4
  40
  41 func main() {
  42         config := configuration.ParseConfiguration()
  43         logLevel, _ := logger.LogLevelTokenToLevel(config.Logging.LogLevel)
  44         logger, err := logger.InitLogger(logLevel)
  45         if err != nil {
  46                 fmt.Printf("#http_server.main - failed to initialize logger, error: %s", err)
  47                 os.Exit(1)
  48         }
  49         rmrConfig := services.NewRmrConfig(config.Rmr.Port, config.Rmr.MaxMsgSize, 0, logger)
  50         var msgImpl *rmrCgo.Context
  51         rNibWriter.Init("e2Manager", MAX_RNIB_POOL_INSTANCES)
  52         defer rNibWriter.Close()
  53         reader.Init("e2Manager", MAX_RNIB_POOL_INSTANCES)
  54         defer reader.Close()
  55
  56         rmrResponseChannel := make(chan *models.NotificationResponse, config.NotificationResponseBuffer)
  57         rmrService := services.NewRmrService(rmrConfig, msgImpl, controllers.E2Sessions, rmrResponseChannel)
  58         var ranSetupManager = managers.NewRanSetupManager(logger, rmrService, rNibWriter.GetRNibWriter)
  59         var ranReconnectionManager = managers.NewRanReconnectionManager(logger, config, reader.GetRNibReader, rNibWriter.GetRNibWriter, ranSetupManager)
  60         var nManager = notificationmanager.NewNotificationManager(reader.GetRNibReader, rNibWriter.GetRNibWriter, ranReconnectionManager)
  61
  62         rmrServiceReceiver := receivers.NewRmrServiceReceiver(*rmrService, nManager)
  63         defer rmrService.CloseContext()
  64         go rmrServiceReceiver.ListenAndHandle()
  65         go rmrService.SendResponse()
  66
  67         controller := controllers.NewNodebController(logger, rmrService, reader.GetRNibReader, rNibWriter.GetRNibWriter)
  68         newController := controllers.NewController(logger, rmrService, reader.GetRNibReader, rNibWriter.GetRNibWriter, config, ranSetupManager)
  69         runServer(config.Http.Port, controller, newController)
  70 }
  71
  72 func runServer(port int, controller controllers.INodebController, newController controllers.IController) {
  73
  74         router := mux.NewRouter();
  75         initializeRoutes(router, controller, newController)
  76
  77         addr := fmt.Sprintf(":%d", port)
  78         if err := http.ListenAndServe(addr, router); err != nil {
  79                 log.Fatalf("#runNodebServer - fail to start http server. Error: %v", err)
  80         }
  81 }
  82
  83 func initializeRoutes(router *mux.Router, controller controllers.INodebController, newController controllers.IController) {
  84         r := router.PathPrefix("/v1").Subrouter()
  85         r.HandleFunc("/health", controller.HandleHealthCheckRequest).Methods("GET")
  86
  87         rr := r.PathPrefix("/nodeb").Subrouter()
  88         rr.HandleFunc("/ids", controller.GetNodebIdList).Methods("GET") // nodeb/ids
  89         rr.HandleFunc("/{ranName}", controller.GetNodeb).Methods("GET")
  90         rr.HandleFunc("/shutdown", newController.ShutdownHandler).Methods("PUT")
  91         rr.HandleFunc("/{ranName}/reset", newController.X2ResetHandler).Methods("PUT") // nodeb/{ranName}/reset
  92         rr.HandleFunc("/x2-setup", newController.X2SetupHandler).Methods("POST")
  93         rr.HandleFunc("/endc-setup", newController.EndcSetupHandler).Methods("POST")
  94 }