E2Manager/handlers/rmrmsghandlers/setup_response_notification_handler.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 //  This source code is part of the near-RT RIC (RAN Intelligent Controller)
  18 //  platform project (RICP).
  19
  20 package rmrmsghandlers
  21
  22 import (
  23         "e2mgr/enums"
  24         "e2mgr/logger"
  25         "e2mgr/managers"
  26         "e2mgr/models"
  27         "e2mgr/rmrCgo"
  28         "e2mgr/services"
  29         "e2mgr/utils"
  30         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
  31 )
  32
  33 type SetupResponseNotificationHandler struct {
  34         logger                 *logger.Logger
  35         rnibDataService        services.RNibDataService
  36         setupResponseManager   managers.ISetupResponseManager
  37         ranStatusChangeManager managers.IRanStatusChangeManager
  38         msgType                int
  39 }
  40
  41 var msgTypeToMsgName = map[int]string{
  42         rmrCgo.RIC_X2_SETUP_RESP:         "X2 Setup Response",
  43         rmrCgo.RIC_X2_SETUP_FAILURE:      "X2 Setup Failure Response",
  44         rmrCgo.RIC_ENDC_X2_SETUP_RESP:    "ENDC Setup Response",
  45         rmrCgo.RIC_ENDC_X2_SETUP_FAILURE: "ENDC Setup Failure Response",
  46 }
  47
  48 func NewSetupResponseNotificationHandler(logger *logger.Logger, rnibDataService services.RNibDataService, setupResponseManager managers.ISetupResponseManager, ranStatusChangeManager managers.IRanStatusChangeManager, msgType int) SetupResponseNotificationHandler {
  49         return SetupResponseNotificationHandler{
  50                 logger: logger,
  51                 rnibDataService:        rnibDataService,
  52                 setupResponseManager:   setupResponseManager,
  53                 ranStatusChangeManager: ranStatusChangeManager,
  54                 msgType:                msgType,
  55         }
  56 }
  57
  58 func (h SetupResponseNotificationHandler) Handle(request *models.NotificationRequest) {
  59         msgName := msgTypeToMsgName[h.msgType]
  60         h.logger.Infof("#SetupResponseNotificationHandler - RAN name: %s - Received %s notification", request.RanName, msgName)
  61
  62         inventoryName := request.RanName
  63
  64         nodebInfo, rnibErr := h.rnibDataService.GetNodeb(inventoryName)
  65
  66         if rnibErr != nil {
  67                 h.logger.Errorf("#SetupResponseNotificationHandler - RAN name: %s - Error fetching RAN from rNib: %v", request.RanName, rnibErr)
  68                 return
  69         }
  70
  71         if !isConnectionStatusValid(nodebInfo.ConnectionStatus) {
  72                 h.logger.Errorf("#SetupResponseNotificationHandler - RAN name: %s - Invalid RAN connection status: %s", request.RanName, nodebInfo.ConnectionStatus)
  73                 return
  74         }
  75
  76         nbIdentity := &entities.NbIdentity{InventoryName: inventoryName}
  77         err := h.setupResponseManager.PopulateNodebByPdu(h.logger, nbIdentity, nodebInfo, request.Payload)
  78
  79         if err != nil {
  80                 return
  81         }
  82
  83         rnibErr = h.rnibDataService.SaveNodeb(nbIdentity, nodebInfo)
  84
  85         if rnibErr != nil {
  86                 h.logger.Errorf("#SetupResponseNotificationHandler - RAN name: %s - Error saving RAN to rNib: %v", request.RanName, rnibErr)
  87                 return
  88         }
  89
  90         h.logger.Infof("#SetupResponseNotificationHandler - RAN name: %s - Successfully saved RAN to rNib", request.RanName)
  91         h.logger.Infof("#SetupResponseNotificationHandler - Summary: elapsed time for receiving and handling setup response message from E2 terminator: %f ms", utils.ElapsedTime(request.StartTime))
  92
  93         if !isSuccessSetupResponseMessage(h.msgType) {
  94                 return
  95         }
  96
  97         _ = h.ranStatusChangeManager.Execute(rmrCgo.RAN_CONNECTED, enums.RIC_TO_RAN, nodebInfo)
  98 }
  99
 100 func isConnectionStatusValid(connectionStatus entities.ConnectionStatus) bool {
 101         return connectionStatus == entities.ConnectionStatus_CONNECTING || connectionStatus == entities.ConnectionStatus_CONNECTED
 102 }
 103
 104 func isSuccessSetupResponseMessage(msgType int) bool {
 105         return msgType == rmrCgo.RIC_X2_SETUP_RESP || msgType == rmrCgo.RIC_ENDC_X2_SETUP_RESP
 106 }