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/julienschmidt/httprouter"
  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
  59         var ranSetupManager = managers.NewRanSetupManager(logger, rmrService, reader.GetRNibReader, rNibWriter.GetRNibWriter)
  60         var ranReconnectionManager = managers.NewRanReconnectionManager(logger, config, reader.GetRNibReader, rNibWriter.GetRNibWriter, ranSetupManager)
  61         var nManager = notificationmanager.NewNotificationManager(reader.GetRNibReader, rNibWriter.GetRNibWriter, ranReconnectionManager)
  62
  63         rmrServiceReceiver := receivers.NewRmrServiceReceiver(*rmrService, nManager)
  64         defer rmrService.CloseContext()
  65         go rmrServiceReceiver.ListenAndHandle()
  66         go rmrService.SendResponse()
  67         runServer(rmrService, logger, config)
  68 }
  69
  70 func runServer(rmrService *services.RmrService, logger *logger.Logger, config *configuration.Configuration) {
  71
  72         router := httprouter.New()
  73         controller := controllers.NewNodebController(logger, rmrService, reader.GetRNibReader, rNibWriter.GetRNibWriter)
  74         newController := controllers.NewController(logger, rmrService, reader.GetRNibReader, rNibWriter.GetRNibWriter, config)
  75
  76         router.POST("/v1/nodeb/:messageType", controller.HandleRequest)
  77         router.GET("/v1/nodeb-ids", controller.GetNodebIdList)
  78         router.GET("/v1/nodeb/:ranName", controller.GetNodeb)
  79         router.GET("/v1/health", controller.HandleHealthCheckRequest)
  80         router.PUT("/v1/nodeb/shutdown", newController.ShutdownHandler)
  81         router.PUT("/v1/nodeb-reset/:ranName", newController.X2ResetHandler)
  82
  83         port := fmt.Sprintf(":%d", config.Http.Port)
  84         if err := http.ListenAndServe(port, router); err != nil {
  85                 log.Fatalf("#runNodebServer - fail to start http server. Error: %v", err)
  86         }
  87 }