E2Manager/handlers/rmrmsghandlers/enb_load_information_notification_handler.go

   1 package rmrmsghandlers
   2
   3 import "C"
   4 import (
   5         "e2mgr/converters"
   6         "e2mgr/e2pdus"
   7         "e2mgr/logger"
   8         "e2mgr/models"
   9         "e2mgr/rNibWriter"
  10         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
  11         "time"
  12 )
  13
  14 type EnbLoadInformationNotificationHandler struct {
  15         rnibWriterProvider func() rNibWriter.RNibWriter
  16 }
  17
  18 func NewEnbLoadInformationNotificationHandler(rnibWriterProvider func() rNibWriter.RNibWriter) EnbLoadInformationNotificationHandler {
  19         return EnbLoadInformationNotificationHandler{
  20                 rnibWriterProvider: rnibWriterProvider,
  21         }
  22 }
  23
  24 func elapsed(startTime time.Time) float64 {
  25         return float64(time.Since(startTime)) / float64(time.Millisecond)
  26 }
  27
  28 func (src EnbLoadInformationNotificationHandler) Handle(logger *logger.Logger, request *models.NotificationRequest, messageChannel chan<- *models.NotificationResponse) {
  29
  30         pdu, err := converters.UnpackX2apPdu(logger, e2pdus.MaxAsn1CodecAllocationBufferSize, request.Len, request.Payload, e2pdus.MaxAsn1CodecMessageBufferSize)
  31
  32         if err != nil {
  33                 logger.Errorf("#EnbLoadInformationNotificationHandler.Handle - RAN name: %s - Unpack failed. Error: %v", request.RanName, err)
  34                 return
  35         }
  36
  37         logger.Debugf("#EnbLoadInformationNotificationHandler.Handle - RAN name: %s - Unpacked message successfully", request.RanName)
  38
  39         ranLoadInformation := &entities.RanLoadInformation{LoadTimestamp: uint64(request.StartTime.UnixNano())}
  40
  41         err = converters.ExtractAndBuildRanLoadInformation(pdu, ranLoadInformation)
  42
  43         if (err != nil) {
  44                 logger.Errorf("#EnbLoadInformationNotificationHandler.Handle - RAN name: %s - Failed at ExtractAndBuildRanLoadInformation. Error: %v", request.RanName, err)
  45                 return
  46         }
  47
  48         logger.Debugf("#EnbLoadInformationNotificationHandler.Handle - RAN name: %s - Successfully done with extracting and building RAN load information. elapsed: %f ms", request.RanName, elapsed(request.StartTime))
  49
  50         rnibErr := src.rnibWriterProvider().SaveRanLoadInformation(request.RanName, ranLoadInformation)
  51
  52         if rnibErr != nil {
  53                 logger.Errorf("#EnbLoadInformationNotificationHandler.Handle - RAN name: %s - Failed saving RAN load information. Error: %v", request.RanName, rnibErr)
  54                 return
  55         }
  56
  57         logger.Infof("#EnbLoadInformationNotificationHandler.Handle - RAN name: %s - Successfully saved RAN load information to RNIB. elapsed: %f ms", request.RanName, elapsed(request.StartTime))
  58 }