+// Update retries and connection status
+func (m *RanSetupManager) updateConnectionStatus(nodebInfo *entities.NodebInfo, status entities.ConnectionStatus) error {
+ // Update retries and connection status
+ nodebInfo.ConnectionStatus = status
+ nodebInfo.ConnectionAttempts++
+ err := m.rnibDataService.UpdateNodebInfo(nodebInfo)
+ if err != nil {
+ m.logger.Errorf("#RanSetupManager.updateConnectionStatus - Ran name: %s - Failed updating RAN's connection status to %v : %s", nodebInfo.RanName, status, err)
+ } else {
+ m.logger.Infof("#RanSetupManager.updateConnectionStatus - Ran name: %s - Successfully updated rNib. RAN's current connection status: %v, RAN's current connection attempts: %d", nodebInfo.RanName, status, nodebInfo.ConnectionAttempts)
+ }
+ return err
+}
+
+// Decrement retries and connection status (disconnected)
+func (m *RanSetupManager) updateConnectionStatusDisconnected(nodebInfo *entities.NodebInfo) error {
+ // Update retries and connection status
+ nodebInfo.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
+ nodebInfo.ConnectionAttempts--
+ err := m.rnibDataService.UpdateNodebInfo(nodebInfo)
+ if err != nil {
+ m.logger.Errorf("#RanSetupManager.updateConnectionStatusDisconnected - Ran name: %s - Failed updating RAN's connection status to DISCONNECTED : %s", nodebInfo.RanName, err)
+ } else {
+ m.logger.Infof("#RanSetupManager.updateConnectionStatusDisconnected - Ran name: %s - Successfully updated rNib. RAN's current connection status: DISCONNECTED, RAN's current connection attempts: %d", nodebInfo.RanName, nodebInfo.ConnectionAttempts)
+ }
+ return err
+}
+
+func (m *RanSetupManager) prepareSetupRequest(nodebInfo *entities.NodebInfo) (int, *models.E2RequestMessage, error) {
+ // Build the endc/x2 setup request
+ switch nodebInfo.E2ApplicationProtocol {
+ case entities.E2ApplicationProtocol_X2_SETUP_REQUEST:
+ rmrMsgType := rmrCgo.RIC_X2_SETUP_REQ
+ request := models.NewE2RequestMessage(nodebInfo.RanName /*tid*/, nodebInfo.Ip, uint16(nodebInfo.Port), nodebInfo.RanName, e2pdus.PackedX2setupRequest)
+ return rmrMsgType, request, nil
+ case entities.E2ApplicationProtocol_ENDC_X2_SETUP_REQUEST:
+ rmrMsgType := rmrCgo.RIC_ENDC_X2_SETUP_REQ
+ request := models.NewE2RequestMessage(nodebInfo.RanName /*tid*/, nodebInfo.Ip, uint16(nodebInfo.Port), nodebInfo.RanName, e2pdus.PackedEndcX2setupRequest)
+ return rmrMsgType, request, nil
+ }
+
+ m.logger.Errorf("#RanSetupManager.prepareSetupRequest - Unsupported nodebInfo.E2ApplicationProtocol %d ", nodebInfo.E2ApplicationProtocol)
+ return 0, nil, e2managererrors.NewInternalError()
+}
+
+// ExecuteSetup updates the connection status and number of attempts in the nodebInfo and send an endc/x2 setup request to establish a connection with the RAN
+func (m *RanSetupManager) ExecuteSetup(nodebInfo *entities.NodebInfo, status entities.ConnectionStatus) error {
+
+ // Update retries and connection status
+ if err := m.updateConnectionStatus(nodebInfo, status); err != nil {
+ return e2managererrors.NewRnibDbError()
+ }
+
+ // Build the endc/x2 setup request
+ rmrMsgType, request, err := m.prepareSetupRequest(nodebInfo)
+ if err != nil {
+ return err
+ }
+
+ // Send the endc/x2 setup request
+ var xAction []byte
+ msg := models.NewRmrMessage(rmrMsgType, nodebInfo.RanName, request.GetMessageAsBytes(m.logger), xAction)
+
+ err = m.rmrSender.Send(msg)
+
+ if err != nil {
+ m.logger.Errorf("#RanSetupManager.ExecuteSetup - failed sending setup request to RMR: %s", err)
+
+ err := m.updateConnectionStatusDisconnected(nodebInfo)
+
+ // Decrement retries and connection status (disconnected)
+ if err != nil {
+ return e2managererrors.NewRnibDbError()
+ }
+
+ return e2managererrors.NewRmrError()
+ }
+