E2Manager/handlers/enb_load_information_notification_handler.go

   1 package handlers
   2
   3 import "C"
   4 import (
   5         "e2mgr/logger"
   6         "e2mgr/models"
   7         "e2mgr/rNibWriter"
   8         "e2mgr/sessions"
   9         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
  10         "time"
  11 )
  12
  13 type EnbLoadInformationNotificationHandler struct {
  14         rnibWriterProvider func() rNibWriter.RNibWriter
  15 }
  16
  17 func NewEnbLoadInformationNotificationHandler(rnibWriterProvider func() rNibWriter.RNibWriter) EnbLoadInformationNotificationHandler {
  18         return EnbLoadInformationNotificationHandler{
  19                 rnibWriterProvider: rnibWriterProvider,
  20         }
  21 }
  22
  23 func elapsed(startTime time.Time) float64 {
  24         return float64(time.Since(startTime)) / float64(time.Millisecond)
  25 }
  26
  27 func (src EnbLoadInformationNotificationHandler) Handle(logger *logger.Logger, e2Sessions sessions.E2Sessions, request *models.NotificationRequest, messageChannel chan<- *models.NotificationResponse) {
  28
  29         pdu, err := unpackX2apPdu(logger, MaxAsn1CodecAllocationBufferSize, request.Len, request.Payload, MaxAsn1CodecMessageBufferSize)
  30
  31         if err != nil {
  32                 logger.Errorf("#EnbLoadInformationNotificationHandler.Handle - RAN name: %s - Unpack failed. Error: %v", request.RanName, err)
  33                 return
  34         }
  35
  36         logger.Debugf("#EnbLoadInformationNotificationHandler.Handle - RAN name: %s - Unpacked message successfully", request.RanName)
  37
  38         ranLoadInformation := &entities.RanLoadInformation{LoadTimestamp: uint64(request.StartTime.UnixNano())}
  39
  40         err = extractAndBuildRanLoadInformation(pdu, ranLoadInformation)
  41
  42         if (err != nil) {
  43                 logger.Errorf("#EnbLoadInformationNotificationHandler.Handle - RAN name: %s - Failed at extractAndBuildRanLoadInformation. Error: %v", request.RanName, err)
  44                 return
  45         }
  46
  47         logger.Debugf("#EnbLoadInformationNotificationHandler.Handle - RAN name: %s - Successfully done with extracting and building RAN load information. elapsed: %f ms", request.RanName, elapsed(request.StartTime))
  48
  49         rnibErr := src.rnibWriterProvider().SaveRanLoadInformation(request.RanName, ranLoadInformation)
  50
  51         if rnibErr != nil {
  52                 logger.Errorf("#EnbLoadInformationNotificationHandler.Handle - RAN name: %s - Failed saving RAN load information. Error: %v", request.RanName, rnibErr)
  53                 return
  54         }
  55
  56         logger.Infof("#EnbLoadInformationNotificationHandler.Handle - RAN name: %s - Successfully saved RAN load information to RNIB. elapsed: %f ms", request.RanName, elapsed(request.StartTime))
  57 }