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/models"
  26         "e2mgr/rNibWriter"
  27         "e2mgr/rmrCgo"
  28         "e2mgr/services"
  29         "e2mgr/services/receivers"
  30         "fmt"
  31         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/reader"
  32         "github.com/julienschmidt/httprouter"
  33         "log"
  34         "net/http"
  35         "os"
  36 )
  37
  38 const MAX_RNIB_PULL_INSTANCES = 4
  39
  40 func main() {
  41         config := configuration.ParseConfiguration()
  42         logLevel, _ := logger.LogLevelTokenToLevel(config.Logging.LogLevel)
  43         logger, err := logger.InitLogger(logLevel)
  44         if err != nil {
  45                 fmt.Printf("#http_server.main - failed to initialize logger, error: %s", err)
  46                 os.Exit(1)
  47         }
  48         rmrConfig := services.NewRmrConfig(config.Rmr.Port, config.Rmr.MaxMsgSize, 0, logger)
  49         var msgImpl *rmrCgo.Context
  50         rNibWriter.Init("e2Manager", MAX_RNIB_PULL_INSTANCES)
  51         defer rNibWriter.Close()
  52         reader.Init("e2Manager", MAX_RNIB_PULL_INSTANCES)
  53         defer reader.Close()
  54         var nManager = managers.NewNotificationManager(reader.GetRNibReader, rNibWriter.GetRNibWriter)
  55
  56         rmrResponseChannel := make(chan *models.NotificationResponse, config.NotificationResponseBuffer)
  57         rmrService := services.NewRmrService(rmrConfig, msgImpl, controllers.E2Sessions, rmrResponseChannel)
  58         rmrServiceReceiver := receivers.NewRmrServiceReceiver(*rmrService, nManager)
  59         defer rmrService.CloseContext()
  60         go rmrServiceReceiver.ListenAndHandle()
  61         go rmrService.SendResponse()
  62         runServer(rmrService, logger, config, rmrResponseChannel)
  63 }
  64
  65 func runServer(rmrService *services.RmrService, logger *logger.Logger, config *configuration.Configuration, rmrResponseChannel chan *models.NotificationResponse) {
  66
  67         router := httprouter.New()
  68         controller := controllers.NewNodebController(logger, rmrService, reader.GetRNibReader, rNibWriter.GetRNibWriter)
  69         newController := controllers.NewController(logger, rmrService, reader.GetRNibReader, rNibWriter.GetRNibWriter, config, rmrResponseChannel)
  70
  71         router.POST("/v1/nodeb/:messageType", controller.HandleRequest)
  72         router.GET("/v1/nodeb-ids", controller.GetNodebIdList)
  73         router.GET("/v1/nodeb/:ranName", controller.GetNodeb)
  74         router.GET("/v1/health", controller.HandleHealthCheckRequest)
  75         router.PUT("/v1/nodeb/shutdown", newController.ShutdownHandler)
  76         //router.PUT("/v1/nodeb-reset/:ranName", newController.X2ResetHandler)
  77
  78         port := fmt.Sprintf(":%d", config.Http.Port)
  79         if err := http.ListenAndServe(port, router); err != nil {
  80                 log.Fatalf("#runNodebServer - fail to start http server. Error: %v", err)
  81         }
  82 }