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