2 // Copyright (c) 2023 Samsung Electronics Co., Ltd. All Rights Reserved.
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4 // Licensed under the Apache License, Version 2.0 (the "License");
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5 // you may not use this file except in compliance with the License.
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6 // You may obtain a copy of the License at
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8 // http://www.apache.org/licenses/LICENSE-2.0
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10 // Unless required by applicable law or agreed to in writing, software
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11 // distributed under the License is distributed on an "AS IS" BASIS,
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12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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13 // See the License for the specific language governing permissions and
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14 // limitations under the License.
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16 // This source code is part of the near-RT RIC (RAN Intelligent Controller)
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17 // platform project (RICP).
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19 package rmrmsghandlers
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22 "e2mgr/configuration"
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28 "e2mgr/services/rmrsender"
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33 "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
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36 const E2ResetRequestLogInfoElapsedTime = "#E2ResetRequestNotificationHandler.Handle - Summary: elapsed time for receiving and handling reset request message from E2 terminator: %f ms"
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39 resetRequestEmptyTagsToReplaceToSelfClosingTags = []string{"reject", "ignore", "protocolIEs", "procedureCode", "ResetResponse", "ResetResponseIEs", "id", "criticality", "TransactionID"}
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42 type E2ResetRequestNotificationHandler struct {
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43 logger *logger.Logger
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44 rnibDataService services.RNibDataService
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45 config *configuration.Configuration
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46 rmrSender *rmrsender.RmrSender
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47 ranResetManager *managers.RanResetManager
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50 func NewE2ResetRequestNotificationHandler(logger *logger.Logger, rnibDataService services.RNibDataService, config *configuration.Configuration, rmrSender *rmrsender.RmrSender, ranResetManager *managers.RanResetManager) *E2ResetRequestNotificationHandler {
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51 return &E2ResetRequestNotificationHandler{
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53 rnibDataService: rnibDataService,
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55 rmrSender: rmrSender,
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56 ranResetManager: ranResetManager,
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60 func (e *E2ResetRequestNotificationHandler) Handle(request *models.NotificationRequest) {
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62 e.logger.Infof("#E2ResetRequestNotificationHandler.Handle - RAN name: %s - received E2_Reset. Payload: %x", request.RanName, request.Payload)
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64 e.logger.Debugf("#E2ResetRequestNotificationHandler.Handle - RIC_E2_Node_Reset parsed successfully ")
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66 nodebInfo, err := e.getNodebInfo(request.RanName)
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68 e.logger.Errorf("#E2ResetRequestNotificationHandler.Handle - failed to retrieve nodeB entity. RanName: %s. Error: %s", request.RanName, err.Error())
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69 e.logger.Infof(E2ResetRequestLogInfoElapsedTime, utils.ElapsedTime(request.StartTime))
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73 e.logger.Debugf("#E2ResetRequestNotificationHandler.Handle - nodeB entity retrieved. RanName %s, ConnectionStatus %s", nodebInfo.RanName, nodebInfo.ConnectionStatus)
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75 nodebInfo.ConnectionStatus = entities.ConnectionStatus_UNDER_RESET
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77 ranName := request.RanName
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78 isResetDone, err := e.ranResetManager.ResetRan(ranName)
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80 e.logger.Errorf("#E2ResetRequestNotificationHandler.Handle - failed to update and notify connection status of nodeB entity. RanName: %s. Error: %s", request.RanName, err.Error())
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83 nodebInfoupdated, err1 := e.getNodebInfo(request.RanName)
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85 e.logger.Errorf("#E2ResetRequestNotificationHandler.Handle - failed to get updated nodeB entity. RanName: %s. Error: %s", request.RanName, err1.Error())
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87 e.logger.Debugf("#E2ResetRequestNotificationHandler.Handle - Reset Done Successfully ran: %s , Connection status updated : %s", ranName, nodebInfoupdated.ConnectionStatus)
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89 e.logger.Debugf("#E2ResetRequestNotificationHandler.Handle - Reset Failed")
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94 e.logger.Errorf("#E2ResetRequestNotificationHandler.Handle - failed to update connection status of nodeB entity. RanName: %s. Error: %s", request.RanName, err.Error())
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97 e.logger.Debugf("#E2ResetRequestNotificationHandler.Handle - nodeB entity under reset state. RanName %s, ConnectionStatus %s", nodebInfo.RanName, nodebInfo.ConnectionStatus)
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99 e.logger.Infof(E2ResetRequestLogInfoElapsedTime, utils.ElapsedTime(request.StartTime))
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101 e.waitfortimertimeout(request)
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103 resetRequest, err := e.parseE2ResetMessage(request.Payload)
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105 e.logger.Errorf(err.Error())
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108 e.logger.Infof("#E2ResetRequestNotificationHandler.Handle - RIC_RESET_REQUEST has been parsed successfully %+v", resetRequest)
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109 e.handleSuccessfulResponse(ranName, request, resetRequest)
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111 nodebInfo.ConnectionStatus = entities.ConnectionStatus_CONNECTED
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113 err = e.rnibDataService.UpdateNodebInfoAndPublish(nodebInfo)
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116 e.logger.Errorf("#E2ResetRequestNotificationHandler.Handle - failed to update connection status of nodeB entity. RanName: %s. Error: %s", request.RanName, err.Error())
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119 e.logger.Debugf("#E2ResetRequestNotificationHandler.Handle - nodeB entity connected state. RanName %s, ConnectionStatus %s", nodebInfo.RanName, nodebInfo.ConnectionStatus)
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123 func (e *E2ResetRequestNotificationHandler) getNodebInfo(ranName string) (*entities.NodebInfo, error) {
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125 nodebInfo, err := e.rnibDataService.GetNodeb(ranName)
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127 e.logger.Errorf("#E2ResetRequestNotificationHandler.Handle - failed to retrieve nodeB entity. RanName: %s. Error: %s", ranName, err.Error())
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130 return nodebInfo, err
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133 func (e *E2ResetRequestNotificationHandler) waitfortimertimeout(request *models.NotificationRequest) {
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134 timeout := e.config.E2ResetTimeOutSec
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136 timeElapsed := utils.ElapsedTime(request.StartTime)
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137 e.logger.Infof(E2ResetRequestLogInfoElapsedTime, utils.ElapsedTime(request.StartTime))
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138 if int(timeElapsed) > timeout {
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141 time.Sleep(time.Duration(timeout/100) * time.Millisecond)
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145 func (e *E2ResetRequestNotificationHandler) parseE2ResetMessage(payload []byte) (*models.E2ResetRequestMessage, error) {
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146 e2resetMessage := models.E2ResetRequestMessage{}
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147 err := xml.Unmarshal(utils.NormalizeXml(payload), &(e2resetMessage.E2APPDU))
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150 e.logger.Errorf("#E2ResetRequestNotificationHandler.Handle - error in parsing request message: %+v", err)
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153 e.logger.Debugf("#E2ResetRequestNotificationHandler.Handle - Unmarshalling is successful %v", e2resetMessage.E2APPDU.InitiatingMessage.ProcedureCode)
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154 return &e2resetMessage, nil
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157 func (h *E2ResetRequestNotificationHandler) handleSuccessfulResponse(ranName string, req *models.NotificationRequest, resetRequest *models.E2ResetRequestMessage) {
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159 successResponse := models.NewE2ResetResponseMessage(resetRequest)
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160 h.logger.Debugf("#E2ResetRequestNotificationHandler.handleSuccessfulResponse - E2_RESET_RESPONSE has been built successfully %+v", successResponse)
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162 responsePayload, err := xml.Marshal(&successResponse.E2ApPdu)
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164 h.logger.Warnf("#E2ResetRequestNotificationHandler.handleSuccessfulResponse - RAN name: %s - Error marshalling RIC_E2_RESET_RESP. Payload: %s", ranName, responsePayload)
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167 responsePayload = utils.ReplaceEmptyTagsWithSelfClosing(responsePayload, resetRequestEmptyTagsToReplaceToSelfClosingTags)
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169 h.logger.Infof("#E2ResetRequestNotificationHandler.handleSuccessfulResponse - payload: %s", responsePayload)
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171 msg := models.NewRmrMessage(rmrCgo.RIC_E2_RESET_RESP, ranName, responsePayload, req.TransactionId, req.GetMsgSrc())
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172 h.logger.Infof("#E2ResetRequestNotificationHandler.handleSuccessfulResponse - RAN name: %s - RIC_E2_RESET_RESP message has been built successfully. Message: %x", ranName, msg)
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173 err = h.rmrSender.Send(msg)
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175 h.logger.Errorf("#E2ResetRequestNotificationHandler.handleSuccessfulResponse - RAN name: %s - Error sending e2 success response %+v", ranName, msg)
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