[RIC-434] Update gNB Cells

[ric-plt/e2mgr.git] / E2Manager / handlers / rmrmsghandlers / x2_reset_response_handler.go

diff --git a/E2Manager/handlers/rmrmsghandlers/x2_reset_response_handler.go b/E2Manager/handlers/rmrmsghandlers/x2_reset_response_handler.go
index cd1556d..ca1b175 100644 (file)
--- a/E2Manager/handlers/rmrmsghandlers/x2_reset_response_handler.go
+++ b/E2Manager/handlers/rmrmsghandlers/x2_reset_response_handler.go
@@ -13,45 +13,94 @@
 // 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 rmrmsghandlers
 
-// #cgo CFLAGS: -I../../asn1codec/inc/ -I../../asn1codec/e2ap_engine/
-// #cgo LDFLAGS: -L ../../asn1codec/lib/ -L../../asn1codec/e2ap_engine/ -le2ap_codec -lasncodec
+// #cgo CFLAGS: -I../../3rdparty/asn1codec/inc/ -I../../3rdparty/asn1codec/e2ap_engine/
+// #cgo LDFLAGS: -L ../../3rdparty/asn1codec/lib/ -L../../3rdparty/asn1codec/e2ap_engine/ -le2ap_codec -lasncodec
 // #include <asn1codec_utils.h>
 import "C"
 import (
        "e2mgr/converters"
-       "e2mgr/e2pdus"
+       "e2mgr/enums"
        "e2mgr/logger"
+       "e2mgr/managers"
        "e2mgr/models"
-       "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/reader"
+       "e2mgr/rmrCgo"
+       "e2mgr/services"
+       "e2mgr/utils"
+       "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
 )
 
+const ResetResponseLogInfoElapsedTime = "#X2ResetResponseHandler.Handle - Summary: elapsed time for receiving and handling reset request message from E2 terminator: %f ms"
+
 type X2ResetResponseHandler struct {
-       rnibReaderProvider func() reader.RNibReader
+       logger                 *logger.Logger
+       rnibDataService        services.RNibDataService
+       ranStatusChangeManager managers.IRanStatusChangeManager
+       extractor              converters.IX2ResetResponseExtractor
 }
 
-func NewX2ResetResponseHandler(rnibReaderProvider func() reader.RNibReader) X2ResetResponseHandler {
+func NewX2ResetResponseHandler(logger *logger.Logger, rnibDataService services.RNibDataService, ranStatusChangeManager managers.IRanStatusChangeManager, x2ResetResponseExtractor converters.IX2ResetResponseExtractor) X2ResetResponseHandler {
        return X2ResetResponseHandler{
-               rnibReaderProvider: rnibReaderProvider,
+               logger:                 logger,
+               rnibDataService:        rnibDataService,
+               ranStatusChangeManager: ranStatusChangeManager,
+               extractor:              x2ResetResponseExtractor,
+       }
+}
+
+func (h X2ResetResponseHandler) Handle(request *models.NotificationRequest) {
+       ranName := request.RanName
+       h.logger.Infof("#X2ResetResponseHandler.Handle - RAN name: %s - received reset response. Payload: %x", ranName, request.Payload)
+
+       nodebInfo, err := h.rnibDataService.GetNodeb(ranName)
+       if err != nil {
+               h.logger.Errorf("#x2ResetResponseHandler.Handle - RAN name: %s - failed to retrieve nodebInfo entity. Error: %s", ranName, err)
+               return
+       }
+
+       if nodebInfo.ConnectionStatus == entities.ConnectionStatus_SHUTTING_DOWN {
+               h.logger.Warnf("#X2ResetResponseHandler.Handle - RAN name: %s, connection status: %s - nodeB entity in incorrect state", nodebInfo.RanName, nodebInfo.ConnectionStatus)
+               h.logger.Infof(ResetResponseLogInfoElapsedTime, utils.ElapsedTime(request.StartTime))
+               return
        }
+
+       if nodebInfo.ConnectionStatus != entities.ConnectionStatus_CONNECTED {
+               h.logger.Errorf("#X2ResetResponseHandler.Handle - RAN name: %s, connection status: %s - nodeB entity in incorrect state", nodebInfo.RanName, nodebInfo.ConnectionStatus)
+               h.logger.Infof(ResetResponseLogInfoElapsedTime, utils.ElapsedTime(request.StartTime))
+               return
+       }
+
+       isSuccessfulResetResponse, err := h.isSuccessfulResetResponse(ranName, request.Payload)
+
+       h.logger.Infof(ResetResponseLogInfoElapsedTime, utils.ElapsedTime(request.StartTime))
+
+       if err != nil || !isSuccessfulResetResponse {
+               return
+       }
+
+       _ = h.ranStatusChangeManager.Execute(rmrCgo.RAN_RESTARTED, enums.RIC_TO_RAN, nodebInfo)
 }
 
-func (src X2ResetResponseHandler) Handle(logger *logger.Logger, request *models.NotificationRequest, messageChannel chan<- *models.NotificationResponse) {
+func (h X2ResetResponseHandler) isSuccessfulResetResponse(ranName string, packedBuffer []byte) (bool, error) {
 
-       logger.Infof("#x2ResetResponseHandler.Handle - received reset response. Payload: %x", request.Payload)
+       criticalityDiagnostics, err := h.extractor.ExtractCriticalityDiagnosticsFromPdu(packedBuffer)
 
-       if nb, rNibErr := src.rnibReaderProvider().GetNodeb(request.RanName); rNibErr != nil {
-               logger.Errorf("#x2ResetResponseHandler.Handle - failed to retrieve nb entity. RanName: %s. Error: %s", request.RanName, rNibErr.Error())
-       } else {
-               logger.Debugf("#x2ResetResponseHandler.Handle - nb entity retrieved. RanName %s, ConnectionStatus %s", nb.RanName, nb.ConnectionStatus)
-               refinedMessage, err := converters.UnpackX2apPduAndRefine(logger, e2pdus.MaxAsn1CodecAllocationBufferSize , request.Len, request.Payload, e2pdus.MaxAsn1CodecMessageBufferSize /*message buffer*/)
-               if err != nil {
-                       logger.Errorf("#x2ResetResponseHandler.Handle - failed to unpack reset response message. RanName %s, Payload: %s", request.RanName, request.Payload)
-               } else {
-                       logger.Debugf("#x2ResetResponseHandler.Handle - reset response message payload unpacked. RanName %s, Message: %s", request.RanName, refinedMessage.PduPrint)
-               }
+       if err != nil {
+               h.logger.Errorf("#X2ResetResponseHandler.isSuccessfulResetResponse - RAN name: %s - Failed extracting pdu: %s", ranName, err)
+               return false, err
        }
+
+       if criticalityDiagnostics != nil {
+               h.logger.Errorf("#X2ResetResponseHandler.isSuccessfulResetResponse - RAN name: %s - Unsuccessful RESET response message. Criticality diagnostics: %s", ranName, criticalityDiagnostics)
+               return false, nil
+       }
+
+       h.logger.Infof("#X2ResetResponseHandler.isSuccessfulResetResponse - RAN name: %s - Successful RESET response message", ranName)
+       return true, nil
 }