X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=E2Manager%2Fmanagers%2Fran_setup_manager.go;h=9329411e177527683f42ad5e737d5a775e7aa5bb;hb=33f84e1a0998af025880be3e8eb087fac34af731;hp=6551abcc0f8b6c9f885daefdcc6505f63f1f8186;hpb=19e72a51b5edbf108d230093fdf85b42fe5ab470;p=ric-plt%2Fe2mgr.git

diff --git a/E2Manager/managers/ran_setup_manager.go b/E2Manager/managers/ran_setup_manager.go
index 6551abc..9329411 100644
--- a/E2Manager/managers/ran_setup_manager.go
+++ b/E2Manager/managers/ran_setup_manager.go
@@ -1,28 +1,128 @@
+//
+// 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.
+//
+
 package managers
 
 import (
+	"e2mgr/e2managererrors"
+	"e2mgr/e2pdus"
 	"e2mgr/logger"
+	"e2mgr/models"
 	"e2mgr/rNibWriter"
+	"e2mgr/rmrCgo"
 	"e2mgr/services"
+	"e2mgr/sessions"
 	"gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
-	"gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/reader"
+	"time"
 )
 
 type RanSetupManager struct {
 	logger             *logger.Logger
-	rnibReaderProvider func() reader.RNibReader
 	rnibWriterProvider func() rNibWriter.RNibWriter
 	rmrService         *services.RmrService
 }
 
-func NewRanSetupManager(logger *logger.Logger, rmrService *services.RmrService, rnibReaderProvider func() reader.RNibReader, rnibWriterProvider func() rNibWriter.RNibWriter) *RanSetupManager {
+func NewRanSetupManager(logger *logger.Logger, rmrService *services.RmrService, rnibWriterProvider func() rNibWriter.RNibWriter) *RanSetupManager {
 	return &RanSetupManager{
 		logger:             logger,
-		rnibReaderProvider: rnibReaderProvider,
 		rnibWriterProvider: rnibWriterProvider,
+		rmrService:         rmrService,
+	}
+}
+
+// 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.rnibWriterProvider().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.String(), 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.String(), 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.rnibWriterProvider().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()
 }
 
-func (m *RanSetupManager) ExecuteSetup(nodebInfo *entities.NodebInfo) error {
+// 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 {
+
+	//Fill details for the response handler
+	requestDetails := models.SetupRequest{RanName: nodebInfo.RanName, RanPort: uint16(nodebInfo.Port), RanIp: nodebInfo.Ip}
+	m.rmrService.E2sessions[nodebInfo.RanName] = sessions.E2SessionDetails{SessionStart: time.Now(), Request: &requestDetails}
+
+	// Update retries and connection status
+	if err := m.updateConnectionStatus(nodebInfo, status); err != nil {
+		delete(m.rmrService.E2sessions, nodebInfo.RanName)
+		return e2managererrors.NewRnibDbError()
+	}
+
+	// Build the endc/x2 setup request
+	rmrMsgType, request, err := m.prepareSetupRequest(nodebInfo)
+	if err != nil {
+		delete(m.rmrService.E2sessions, nodebInfo.RanName)
+		return err
+	}
+
+	// Send the endc/x2 setup request
+	response := &models.NotificationResponse{MgsType: rmrMsgType, RanName: nodebInfo.RanName, Payload: request.GetMessageAsBytes(m.logger)}
+	if err := m.rmrService.SendRmrMessage(response); err != nil {
+		m.logger.Errorf("#RanSetupManager.ExecuteSetup - failed sending setup request to RMR: %s", err)
+
+		delete(m.rmrService.E2sessions, nodebInfo.RanName)
+
+		// Decrement retries and connection status (disconnected)
+		if err := m.updateConnectionStatusDisconnected(nodebInfo); err != nil {
+			return e2managererrors.NewRnibDbError()
+		}
+
+		return e2managererrors.NewRmrError()
+	}
+
 	return nil
 }