colosseum-near-rt-ric/setup/e2mgr/E2Manager/handlers/httpmsghandlers/x2_reset_request_handler.go

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2021-12-08 21:17:46 +01:00
//
// Copyright 2019 AT&T Intellectual Property
// Copyright 2019 Nokia
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// This source code is part of the near-RT RIC (RAN Intelligent Controller)
// platform project (RICP).
package httpmsghandlers
import (
"e2mgr/e2managererrors"
"e2mgr/e2pdus"
"e2mgr/logger"
"e2mgr/models"
"e2mgr/rmrCgo"
"e2mgr/services"
"e2mgr/services/rmrsender"
"gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/common"
"gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
"unsafe"
)
const (
X2_RESET_ACTIVITY_NAME = "X2_RESET"
)
type X2ResetRequestHandler struct {
rNibDataService services.RNibDataService
rmrSender *rmrsender.RmrSender
logger *logger.Logger
}
func NewX2ResetRequestHandler(logger *logger.Logger, rmrSender *rmrsender.RmrSender, rNibDataService services.RNibDataService) *X2ResetRequestHandler {
return &X2ResetRequestHandler{
rNibDataService: rNibDataService,
rmrSender: rmrSender,
logger: logger,
}
}
func (handler *X2ResetRequestHandler) Handle(request models.Request) (models.IResponse, error) {
resetRequest := request.(models.ResetRequest)
handler.logger.Infof("#X2ResetRequestHandler.Handle - Ran name: %s", resetRequest.RanName)
if len(resetRequest.Cause) == 0 {
resetRequest.Cause = e2pdus.OmInterventionCause
}
payload, ok := e2pdus.KnownCausesToX2ResetPDU(resetRequest.Cause)
if !ok {
handler.logger.Errorf("#X2ResetRequestHandler.Handle - Unknown cause (%s)", resetRequest.Cause)
return nil, e2managererrors.NewRequestValidationError()
}
nodeb, err := handler.rNibDataService.GetNodeb(resetRequest.RanName)
if err != nil {
handler.logger.Errorf("#X2ResetRequestHandler.Handle - failed to get status of RAN: %s from RNIB. Error: %s", resetRequest.RanName, err.Error())
_, ok := err.(*common.ResourceNotFoundError)
if ok {
return nil, e2managererrors.NewResourceNotFoundError()
}
return nil, e2managererrors.NewRnibDbError()
}
if nodeb.ConnectionStatus != entities.ConnectionStatus_CONNECTED {
handler.logger.Errorf("#X2ResetRequestHandler.Handle - RAN: %s in wrong state (%s)", resetRequest.RanName, entities.ConnectionStatus_name[int32(nodeb.ConnectionStatus)])
return nil, e2managererrors.NewWrongStateError(X2_RESET_ACTIVITY_NAME, entities.ConnectionStatus_name[int32(nodeb.ConnectionStatus)])
}
var xAction []byte
var msgSrc unsafe.Pointer
msg := models.NewRmrMessage(rmrCgo.RIC_X2_RESET, resetRequest.RanName, payload, xAction, msgSrc)
err = handler.rmrSender.Send(msg)
if err != nil {
handler.logger.Errorf("#X2ResetRequestHandler.Handle - failed to send reset message to RMR: %s", err)
return nil, e2managererrors.NewRmrError()
}
handler.logger.Infof("#X2ResetRequestHandler.Handle - sent x2 reset to RAN: %s with cause: %s", resetRequest.RanName, resetRequest.Cause)
return nil, nil
}