E2Manager/providers/httpmsghandlerprovider/incoming_request_handler_provider.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 package httpmsghandlerprovider
  18
  19 import (
  20         "e2mgr/configuration"
  21         "e2mgr/e2managererrors"
  22         "e2mgr/handlers/httpmsghandlers"
  23         "e2mgr/logger"
  24         "e2mgr/managers"
  25         "e2mgr/services"
  26         "e2mgr/services/rmrsender"
  27         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
  28 )
  29
  30 type IncomingRequest string
  31
  32 const (
  33         ShutdownRequest        IncomingRequest = "Shutdown"
  34         ResetRequest           IncomingRequest = "Reset"
  35         X2SetupRequest         IncomingRequest = "X2SetupRequest"
  36         EndcSetupRequest       IncomingRequest = "EndcSetupRequest"
  37         GetNodebRequest        IncomingRequest = "GetNodebRequest"
  38         GetNodebIdListRequest  IncomingRequest = "GetNodebIdListRequest"
  39         GetE2TInstancesRequest IncomingRequest = "GetE2TInstancesRequest"
  40 )
  41
  42 type IncomingRequestHandlerProvider struct {
  43         requestMap map[IncomingRequest]httpmsghandlers.RequestHandler
  44         logger     *logger.Logger
  45 }
  46
  47 func NewIncomingRequestHandlerProvider(logger *logger.Logger, rmrSender *rmrsender.RmrSender, config *configuration.Configuration, rNibDataService services.RNibDataService, ranSetupManager *managers.RanSetupManager, e2tInstancesManager managers.IE2TInstancesManager) *IncomingRequestHandlerProvider {
  48
  49         return &IncomingRequestHandlerProvider{
  50                 requestMap: initRequestHandlerMap(logger, rmrSender, config, rNibDataService, ranSetupManager, e2tInstancesManager),
  51                 logger:     logger,
  52         }
  53 }
  54
  55 func initRequestHandlerMap(logger *logger.Logger, rmrSender *rmrsender.RmrSender, config *configuration.Configuration, rNibDataService services.RNibDataService, ranSetupManager *managers.RanSetupManager, e2tInstancesManager managers.IE2TInstancesManager) map[IncomingRequest]httpmsghandlers.RequestHandler {
  56
  57         return map[IncomingRequest]httpmsghandlers.RequestHandler{
  58                 ShutdownRequest:        httpmsghandlers.NewDeleteAllRequestHandler(logger, rmrSender, config, rNibDataService), //TODO change to pointer
  59                 ResetRequest:           httpmsghandlers.NewX2ResetRequestHandler(logger, rmrSender, rNibDataService),
  60                 X2SetupRequest:         httpmsghandlers.NewSetupRequestHandler(logger, rNibDataService, ranSetupManager, entities.E2ApplicationProtocol_X2_SETUP_REQUEST, e2tInstancesManager),
  61                 EndcSetupRequest:       httpmsghandlers.NewSetupRequestHandler(logger, rNibDataService, ranSetupManager, entities.E2ApplicationProtocol_ENDC_X2_SETUP_REQUEST, e2tInstancesManager),
  62                 GetNodebRequest:        httpmsghandlers.NewGetNodebRequestHandler(logger, rNibDataService),
  63                 GetNodebIdListRequest:  httpmsghandlers.NewGetNodebIdListRequestHandler(logger, rNibDataService),
  64                 GetE2TInstancesRequest: httpmsghandlers.NewGetE2TInstancesRequestHandler(logger, e2tInstancesManager),
  65         }
  66 }
  67
  68 func (provider IncomingRequestHandlerProvider) GetHandler(requestType IncomingRequest) (httpmsghandlers.RequestHandler, error) {
  69         handler, ok := provider.requestMap[requestType]
  70
  71         if !ok {
  72                 provider.logger.Errorf("#incoming_request_handler_provider.GetHandler - Cannot find handler for request type: %s", requestType)
  73                 return nil, e2managererrors.NewInternalError()
  74         }
  75
  76         return handler, nil
  77 }