E2Manager/handlers/httpmsghandlers/health_check_handler.go

   1 //
   2 // Copyright (c) 2020 Samsung Electronics Co., Ltd. All Rights Reserved.
   3 //
   4 // Licensed under the Apache License, Version 2.0 (the "License");
   5 // you may not use this file except in compliance with the License.
   6 // You may obtain a copy of the License at
   7 //
   8 //      http://www.apache.org/licenses/LICENSE-2.0
   9 //
  10 // Unless required by applicable law or agreed to in writing, software
  11 // distributed under the License is distributed on an "AS IS" BASIS,
  12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 // See the License for the specific language governing permissions and
  14 // limitations under the License.
  15
  16 //  This source code is part of the near-RT RIC (RAN Intelligent Controller)
  17 //  platform project (RICP).
  18
  19 package httpmsghandlers
  20
  21 import (
  22         "e2mgr/e2managererrors"
  23         "e2mgr/logger"
  24         "e2mgr/managers"
  25         "e2mgr/models"
  26         "e2mgr/services"
  27         "e2mgr/services/rmrsender"
  28         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/common"
  29         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
  30         //        "github.com/pkg/errors"
  31 )
  32
  33 type HealthCheckRequestHandler struct {
  34         logger          *logger.Logger
  35         rNibDataService services.RNibDataService
  36         ranListManager  managers.RanListManager
  37         rmrsender       *rmrsender.RmrSender
  38 }
  39
  40 func NewHealthCheckRequestHandler(logger *logger.Logger, rNibDataService services.RNibDataService, ranListManager managers.RanListManager, rmrsender *rmrsender.RmrSender) *HealthCheckRequestHandler {
  41         return &HealthCheckRequestHandler{
  42                 logger:          logger,
  43                 rNibDataService: rNibDataService,
  44                 ranListManager:  ranListManager,
  45                 rmrsender:       rmrsender,
  46         }
  47 }
  48
  49 func (h *HealthCheckRequestHandler) Handle(request models.Request) (models.IResponse, error) {
  50         ranNameList := h.getRanNameList(request)
  51         isAtleastOneRanConnected := false
  52
  53         for _, ranName := range ranNameList {
  54                 nodebInfo, err := h.rNibDataService.GetNodeb(ranName) //This method is needed for getting RAN functions with later commits
  55                 if err != nil {
  56                         _, ok := err.(*common.ResourceNotFoundError)
  57                         if !ok {
  58                                 h.logger.Errorf("#HealthCheckRequest.Handle - failed to get nodeBInfo entity for ran name: %v from RNIB. Error: %s", ranName, err)
  59                                 return nil, e2managererrors.NewRnibDbError()
  60                         }
  61                         continue
  62                 }
  63                 if nodebInfo.ConnectionStatus == entities.ConnectionStatus_CONNECTED {
  64                         isAtleastOneRanConnected = true
  65
  66                 }
  67         }
  68         if isAtleastOneRanConnected == false {
  69                 return nil, e2managererrors.NewNoConnectedRanError()
  70         }
  71
  72         return nil, nil
  73 }
  74
  75 func (h *HealthCheckRequestHandler) getRanNameList(request models.Request) []string {
  76         healthCheckRequest := request.(models.HealthCheckRequest)
  77         if request != nil && len(healthCheckRequest.RanList) != 0 {
  78                 return healthCheckRequest.RanList
  79         }
  80         nodeIds := h.ranListManager.GetNbIdentityList()
  81
  82         var ranNameList []string
  83         for _, nbIdentity := range nodeIds {
  84                 if nbIdentity.ConnectionStatus == entities.ConnectionStatus_CONNECTED {
  85                         ranNameList = append(ranNameList, nbIdentity.InventoryName)
  86                 }
  87         }
  88         return ranNameList
  89 }