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 //  This source code is part of the near-RT RIC (RAN Intelligent Controller)
  18 //  platform project (RICP).
  19
  20 package httpmsghandlerprovider
  21
  22 import (
  23         "e2mgr/clients"
  24         "e2mgr/configuration"
  25         "e2mgr/e2managererrors"
  26         "e2mgr/handlers/httpmsghandlers"
  27         "e2mgr/logger"
  28         "e2mgr/managers"
  29         "e2mgr/services"
  30         "e2mgr/services/rmrsender"
  31 )
  32
  33 type IncomingRequest string
  34
  35 const (
  36         SetGeneralConfigurationRequest IncomingRequest = "SetGeneralConfiguration"
  37         ShutdownRequest                IncomingRequest = "Shutdown"
  38         ResetRequest                   IncomingRequest = "Reset"
  39         GetNodebRequest                IncomingRequest = "GetNodebRequest"
  40         GetNodebIdListRequest          IncomingRequest = "GetNodebIdListRequest"
  41         GetE2TInstancesRequest         IncomingRequest = "GetE2TInstancesRequest"
  42         UpdateGnbRequest               IncomingRequest = "UpdateGnbRequest"
  43 )
  44
  45 type IncomingRequestHandlerProvider struct {
  46         requestMap map[IncomingRequest]httpmsghandlers.RequestHandler
  47         logger     *logger.Logger
  48 }
  49
  50 func NewIncomingRequestHandlerProvider(logger *logger.Logger, rmrSender *rmrsender.RmrSender, config *configuration.Configuration, rNibDataService services.RNibDataService, ranSetupManager *managers.RanSetupManager, e2tInstancesManager managers.IE2TInstancesManager, e2tAssociationManager *managers.E2TAssociationManager, rmClient clients.IRoutingManagerClient) *IncomingRequestHandlerProvider {
  51
  52         return &IncomingRequestHandlerProvider{
  53                 requestMap: initRequestHandlerMap(logger, rmrSender, config, rNibDataService, ranSetupManager, e2tInstancesManager, e2tAssociationManager, rmClient),
  54                 logger:     logger,
  55         }
  56 }
  57
  58 func initRequestHandlerMap(logger *logger.Logger, rmrSender *rmrsender.RmrSender, config *configuration.Configuration, rNibDataService services.RNibDataService, ranSetupManager *managers.RanSetupManager, e2tInstancesManager managers.IE2TInstancesManager, e2tAssociationManager *managers.E2TAssociationManager, rmClient clients.IRoutingManagerClient) map[IncomingRequest]httpmsghandlers.RequestHandler {
  59
  60         return map[IncomingRequest]httpmsghandlers.RequestHandler{
  61                 ShutdownRequest:                httpmsghandlers.NewDeleteAllRequestHandler(logger, rmrSender, config, rNibDataService, e2tInstancesManager, rmClient),
  62                 ResetRequest:                   httpmsghandlers.NewX2ResetRequestHandler(logger, rmrSender, rNibDataService),
  63                 SetGeneralConfigurationRequest: httpmsghandlers.NewSetGeneralConfigurationHandler(logger, rNibDataService),
  64                 GetNodebRequest:                httpmsghandlers.NewGetNodebRequestHandler(logger, rNibDataService),
  65                 GetNodebIdListRequest:          httpmsghandlers.NewGetNodebIdListRequestHandler(logger, rNibDataService),
  66                 GetE2TInstancesRequest:         httpmsghandlers.NewGetE2TInstancesRequestHandler(logger, e2tInstancesManager),
  67                 UpdateGnbRequest:               httpmsghandlers.NewUpdateGnbRequestHandler(logger, rNibDataService),
  68         }
  69 }
  70
  71 func (provider IncomingRequestHandlerProvider) GetHandler(requestType IncomingRequest) (httpmsghandlers.RequestHandler, error) {
  72         handler, ok := provider.requestMap[requestType]
  73
  74         if !ok {
  75                 provider.logger.Errorf("#incoming_request_handler_provider.GetHandler - Cannot find handler for request type: %s", requestType)
  76                 return nil, e2managererrors.NewInternalError()
  77         }
  78
  79         return handler, nil
  80 }