E2Manager/rNibWriter/rNibWriter.go - oransc/ric-plt/e2mgr - Gitiles

 //
 // 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.

 //  This source code is part of the near-RT RIC (RAN Intelligent Controller)
 //  platform project (RICP).

 package rNibWriter

 import (
 	"e2mgr/configuration"
 	"encoding/json"
 	"fmt"
 	"gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/common"
 	"gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
 	"github.com/golang/protobuf/proto"
 )

 const (
 	E2TAddressesKey = "E2TAddresses"
 	RanAddedEvent   = "ADDED"
 	RanUpdatedEvent = "UPDATED"
 	RanDeletedEvent = "DELETED"
 )

 type rNibWriterInstance struct {
 	sdl              common.ISdlInstance
 	rnibWriterConfig configuration.RnibWriterConfig
 }

 /*
 RNibWriter interface allows saving data to the redis DB
 */
 type RNibWriter interface {
 	SaveNodeb(nodebInfo *entities.NodebInfo) error
 	UpdateNodebInfo(nodebInfo *entities.NodebInfo) error
 	UpdateNodebInfoAndPublish(nodebInfo *entities.NodebInfo) error
 	SaveRanLoadInformation(inventoryName string, ranLoadInformation *entities.RanLoadInformation) error
 	SaveE2TInstance(e2tInstance *entities.E2TInstance) error
 	SaveE2TAddresses(addresses []string) error
 	RemoveE2TInstance(e2tAddress string) error
 	UpdateGnbCells(nodebInfo *entities.NodebInfo, servedNrCells []*entities.ServedNRCell) error
 	RemoveServedNrCells(inventoryName string, servedNrCells []*entities.ServedNRCell) error
 	UpdateNodebInfoOnConnectionStatusInversion(nodebInfo *entities.NodebInfo, ent string) error
 	SaveGeneralConfiguration(config *entities.GeneralConfiguration) error
 	RemoveEnb(nodebInfo *entities.NodebInfo) error
 	RemoveServedCells(inventoryName string, servedCells []*entities.ServedCellInfo) error
 	UpdateEnb(nodebInfo *entities.NodebInfo, servedCells []*entities.ServedCellInfo) error
 	AddNbIdentity(nodeType entities.Node_Type, nbIdentity *entities.NbIdentity) error
 	RemoveNbIdentity(nodeType entities.Node_Type, nbIdentity *entities.NbIdentity) error
 	AddEnb(nodebInfo *entities.NodebInfo) error
 }

 /*
 GetRNibWriter returns reference to RNibWriter
 */

 func GetRNibWriter(sdl common.ISdlInstance, rnibWriterConfig configuration.RnibWriterConfig) RNibWriter {
 	return &rNibWriterInstance{sdl: sdl, rnibWriterConfig: rnibWriterConfig}
 }

 func getChannelsAndEventsPair(channel string, ranName string, event string) []string {
 	return []string{channel, fmt.Sprintf("%s_%s", ranName, event)}
 }

 func (w *rNibWriterInstance) AddNbIdentity(nodeType entities.Node_Type, nbIdentity *entities.NbIdentity) error {
 	nbIdData, err := proto.Marshal(nbIdentity)

 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	err = w.sdl.AddMember(nodeType.String(), nbIdData)

 	if err != nil {
 		return common.NewInternalError(err)
 	}
 	return nil
 }

 func (w *rNibWriterInstance) RemoveServedNrCells(inventoryName string, servedNrCells []*entities.ServedNRCell) error {
 	cellKeysToRemove := buildServedNRCellKeysToRemove(inventoryName, servedNrCells)

 	err := w.sdl.Remove(cellKeysToRemove)

 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	return nil
 }

 func (w *rNibWriterInstance) RemoveServedCells(inventoryName string, servedCells []*entities.ServedCellInfo) error {
 	cellKeysToRemove := buildServedCellInfoKeysToRemove(inventoryName, servedCells)

 	err := w.sdl.Remove(cellKeysToRemove)

 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	return nil
 }

 func (w *rNibWriterInstance) SaveGeneralConfiguration(config *entities.GeneralConfiguration) error {

 	err := w.SaveWithKeyAndMarshal(common.BuildGeneralConfigurationKey(), config)

 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	return nil
 }

 /*
 SaveNodeb saves nodeB entity data in the redis DB according to the specified data model
 */
 func (w *rNibWriterInstance) SaveNodeb(nodebInfo *entities.NodebInfo) error {

 	data, err := proto.Marshal(nodebInfo)

 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	var pairs []interface{}
 	key, rNibErr := common.ValidateAndBuildNodeBNameKey(nodebInfo.RanName)

 	if rNibErr != nil {
 		return rNibErr
 	}

 	pairs = append(pairs, key, data)

 	if nodebInfo.GlobalNbId != nil {

 		key, rNibErr = common.ValidateAndBuildNodeBIdKey(nodebInfo.GetNodeType().String(), nodebInfo.GlobalNbId.GetPlmnId(), nodebInfo.GlobalNbId.GetNbId())
 		if rNibErr != nil {
 			return rNibErr
 		}
 		pairs = append(pairs, key, data)
 	}

 	if nodebInfo.GetEnb() != nil {
 		pairs, rNibErr = appendEnbCells(nodebInfo.RanName, nodebInfo.GetEnb().GetServedCells(), pairs)
 		if rNibErr != nil {
 			return rNibErr
 		}
 	}

 	if nodebInfo.GetGnb() != nil {
 		pairs, rNibErr = appendGnbCells(nodebInfo.RanName, nodebInfo.GetGnb().GetServedNrCells(), pairs)
 		if rNibErr != nil {
 			return rNibErr
 		}
 	}

 	err = w.sdl.Set(pairs)

 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	return nil
 }

 func (w *rNibWriterInstance) AddEnb(nodebInfo *entities.NodebInfo) error {

 	data, err := proto.Marshal(nodebInfo)

 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	var pairs []interface{}
 	key, rNibErr := common.ValidateAndBuildNodeBNameKey(nodebInfo.RanName)

 	if rNibErr != nil {
 		return rNibErr
 	}

 	pairs = append(pairs, key, data)

 	if nodebInfo.GlobalNbId != nil {

 		key, rNibErr = common.ValidateAndBuildNodeBIdKey(nodebInfo.GetNodeType().String(), nodebInfo.GlobalNbId.GetPlmnId(), nodebInfo.GlobalNbId.GetNbId())
 		if rNibErr != nil {
 			return rNibErr
 		}
 		pairs = append(pairs, key, data)
 	}

 	pairs, rNibErr = appendEnbCells(nodebInfo.RanName, nodebInfo.GetEnb().GetServedCells(), pairs)
 	if rNibErr != nil {
 		return rNibErr
 	}

 	channelsAndEvents := getChannelsAndEventsPair(w.rnibWriterConfig.RanManipulationMessageChannel, nodebInfo.RanName, RanAddedEvent)
 	err = w.sdl.SetAndPublish(channelsAndEvents, pairs)
 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	return nil
 }

 func (w *rNibWriterInstance) UpdateGnbCells(nodebInfo *entities.NodebInfo, servedNrCells []*entities.ServedNRCell) error {

 	pairs, err := buildUpdateNodebInfoPairs(nodebInfo)

 	if err != nil {
 		return err
 	}

 	pairs, err = appendGnbCells(nodebInfo.RanName, servedNrCells, pairs)

 	if err != nil {
 		return err
 	}

 	channelsAndEvents := getChannelsAndEventsPair(w.rnibWriterConfig.RanManipulationMessageChannel, nodebInfo.RanName, RanUpdatedEvent)
 	err = w.sdl.SetAndPublish(channelsAndEvents, pairs)

 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	return nil
 }

 func buildServedNRCellKeysToRemove(inventoryName string, servedNrCellsToRemove []*entities.ServedNRCell) []string {

 	var cellKeysToRemove []string

 	for _, cell := range servedNrCellsToRemove {

 		key, _ := common.ValidateAndBuildNrCellIdKey(cell.GetServedNrCellInformation().GetCellId())

 		if len(key) != 0 {
 			cellKeysToRemove = append(cellKeysToRemove, key)
 		}

 		key, _ = common.ValidateAndBuildCellNamePciKey(inventoryName, cell.GetServedNrCellInformation().GetNrPci())

 		if len(key) != 0 {
 			cellKeysToRemove = append(cellKeysToRemove, key)
 		}
 	}

 	return cellKeysToRemove
 }

 func buildServedCellInfoKeysToRemove(inventoryName string, servedCellsToRemove []*entities.ServedCellInfo) []string {

 	var cellKeysToRemove []string

 	for _, cell := range servedCellsToRemove {

 		key, _ := common.ValidateAndBuildCellIdKey(cell.GetCellId())

 		if len(key) != 0 {
 			cellKeysToRemove = append(cellKeysToRemove, key)
 		}

 		key, _ = common.ValidateAndBuildCellNamePciKey(inventoryName, cell.GetPci())

 		if len(key) != 0 {
 			cellKeysToRemove = append(cellKeysToRemove, key)
 		}
 	}

 	return cellKeysToRemove
 }

 func buildUpdateNodebInfoPairs(nodebInfo *entities.NodebInfo) ([]interface{}, error) {
 	nodebNameKey, rNibErr := common.ValidateAndBuildNodeBNameKey(nodebInfo.GetRanName())

 	if rNibErr != nil {
 		return []interface{}{}, rNibErr
 	}

 	nodebIdKey, buildNodebIdKeyError := common.ValidateAndBuildNodeBIdKey(nodebInfo.GetNodeType().String(), nodebInfo.GlobalNbId.GetPlmnId(), nodebInfo.GlobalNbId.GetNbId())

 	data, err := proto.Marshal(nodebInfo)

 	if err != nil {
 		return []interface{}{}, common.NewInternalError(err)
 	}

 	pairs := []interface{}{nodebNameKey, data}

 	if buildNodebIdKeyError == nil {
 		pairs = append(pairs, nodebIdKey, data)
 	}

 	return pairs, nil
 }

 func (w *rNibWriterInstance) buildRemoveEnbKeys(nodebInfo *entities.NodebInfo) ([]string, error) {
 	keys := buildServedCellInfoKeysToRemove(nodebInfo.GetRanName(), nodebInfo.GetEnb().GetServedCells())

 	nodebNameKey, rNibErr := common.ValidateAndBuildNodeBNameKey(nodebInfo.GetRanName())

 	if rNibErr != nil {
 		return []string{}, rNibErr
 	}

 	keys = append(keys, nodebNameKey)

 	nodebIdKey, buildNodebIdKeyError := common.ValidateAndBuildNodeBIdKey(nodebInfo.GetNodeType().String(), nodebInfo.GlobalNbId.GetPlmnId(), nodebInfo.GlobalNbId.GetNbId())

 	if buildNodebIdKeyError == nil {
 		keys = append(keys, nodebIdKey)
 	}

 	return keys, nil
 }

 func (w *rNibWriterInstance) RemoveNbIdentity(nodeType entities.Node_Type, nbIdentity *entities.NbIdentity) error {
 	nbIdData, err := proto.Marshal(nbIdentity)
 	if err != nil {
 		return common.NewInternalError(err)
 	}
 	err = w.sdl.RemoveMember(nodeType.String(), nbIdData)
 	if err != nil {
 		return common.NewInternalError(err)
 	}
 	return nil
 }

 func (w *rNibWriterInstance) updateNodebInfo(nodebInfo *entities.NodebInfo, publish bool) error {

 	pairs, err := buildUpdateNodebInfoPairs(nodebInfo)

 	if err != nil {
 		return err
 	}

 	if publish {
 		channelsAndEvents := getChannelsAndEventsPair(w.rnibWriterConfig.RanManipulationMessageChannel, nodebInfo.RanName, RanUpdatedEvent)
 		err = w.sdl.SetAndPublish(channelsAndEvents, pairs)
 	} else {
 		err = w.sdl.Set(pairs)
 	}

 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	return nil
 }

 /*
 UpdateNodebInfo...
 */
 func (w *rNibWriterInstance) UpdateNodebInfo(nodebInfo *entities.NodebInfo) error {
 	return w.updateNodebInfo(nodebInfo, false)
 }

 /*
 UpdateNodebInfoAndPublish...
 */
 func (w *rNibWriterInstance) UpdateNodebInfoAndPublish(nodebInfo *entities.NodebInfo) error {
 	return w.updateNodebInfo(nodebInfo, true)
 }


 /*
 SaveRanLoadInformation stores ran load information for the provided ran
 */
 func (w *rNibWriterInstance) SaveRanLoadInformation(inventoryName string, ranLoadInformation *entities.RanLoadInformation) error {

 	key, rnibErr := common.ValidateAndBuildRanLoadInformationKey(inventoryName)

 	if rnibErr != nil {
 		return rnibErr
 	}

 	data, err := proto.Marshal(ranLoadInformation)

 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	var pairs []interface{}
 	pairs = append(pairs, key, data)

 	err = w.sdl.Set(pairs)

 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	return nil
 }

 func (w *rNibWriterInstance) SaveE2TInstance(e2tInstance *entities.E2TInstance) error {

 	key, rnibErr := common.ValidateAndBuildE2TInstanceKey(e2tInstance.Address)

 	if rnibErr != nil {
 		return rnibErr
 	}

 	data, err := json.Marshal(e2tInstance)

 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	var pairs []interface{}
 	pairs = append(pairs, key, data)

 	err = w.sdl.Set(pairs)

 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	return nil
 }

 func (w *rNibWriterInstance) SaveE2TAddresses(addresses []string) error {

 	data, err := json.Marshal(addresses)

 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	var pairs []interface{}
 	pairs = append(pairs, E2TAddressesKey, data)

 	err = w.sdl.Set(pairs)

 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	return nil
 }

 func (w *rNibWriterInstance) RemoveE2TInstance(address string) error {
 	key, rNibErr := common.ValidateAndBuildE2TInstanceKey(address)
 	if rNibErr != nil {
 		return rNibErr
 	}
 	err := w.sdl.Remove([]string{key})

 	if err != nil {
 		return common.NewInternalError(err)
 	}
 	return nil
 }

 func (w *rNibWriterInstance) SaveWithKeyAndMarshal(key string, entity interface{}) error {

 	data, err := json.Marshal(entity)

 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	var pairs []interface{}
 	pairs = append(pairs, key, data)

 	err = w.sdl.Set(pairs)

 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	return nil
 }

 /*
 UpdateNodebInfoOnConnectionStatusInversion...
 */
 func (w *rNibWriterInstance) UpdateNodebInfoOnConnectionStatusInversion(nodebInfo *entities.NodebInfo, event string) error {

 	pairs, err := buildUpdateNodebInfoPairs(nodebInfo)

 	if err != nil {
 		return err
 	}

 	err = w.sdl.SetAndPublish([]string{w.rnibWriterConfig.StateChangeMessageChannel, event}, pairs)

 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	return nil
 }

 func (w *rNibWriterInstance) RemoveEnb(nodebInfo *entities.NodebInfo) error {
 	keysToRemove, err := w.buildRemoveEnbKeys(nodebInfo)
 	if err != nil {
 		return err
 	}

 	channelsAndEvents := getChannelsAndEventsPair(w.rnibWriterConfig.RanManipulationMessageChannel, nodebInfo.RanName, RanDeletedEvent)
 	err = w.sdl.RemoveAndPublish(channelsAndEvents, keysToRemove)

 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	return nil
 }

 func (w *rNibWriterInstance) UpdateEnb(nodebInfo *entities.NodebInfo, servedCells []*entities.ServedCellInfo) error {

 	pairs, err := buildUpdateNodebInfoPairs(nodebInfo)

 	if err != nil {
 		return err
 	}

 	pairs, err = appendEnbCells(nodebInfo.RanName, servedCells, pairs)

 	if err != nil {
 		return err
 	}

 	channelsAndEvents := getChannelsAndEventsPair(w.rnibWriterConfig.RanManipulationMessageChannel, nodebInfo.RanName, RanUpdatedEvent)
 	err = w.sdl.SetAndPublish(channelsAndEvents, pairs)

 	if err != nil {
 		return common.NewInternalError(err)
 	}

 	return nil
 }

 /*
 Close the writer
 */
 func Close() {
 	//Nothing to do
 }

 func appendEnbCells(inventoryName string, cells []*entities.ServedCellInfo, pairs []interface{}) ([]interface{}, error) {
 	for _, cell := range cells {
 		cellEntity := entities.Cell{Type: entities.Cell_LTE_CELL, Cell: &entities.Cell_ServedCellInfo{ServedCellInfo: cell}}
 		cellData, err := proto.Marshal(&cellEntity)
 		if err != nil {
 			return pairs, common.NewInternalError(err)
 		}
 		key, rNibErr := common.ValidateAndBuildCellIdKey(cell.GetCellId())
 		if rNibErr != nil {
 			return pairs, rNibErr
 		}
 		pairs = append(pairs, key, cellData)
 		key, rNibErr = common.ValidateAndBuildCellNamePciKey(inventoryName, cell.GetPci())
 		if rNibErr != nil {
 			return pairs, rNibErr
 		}
 		pairs = append(pairs, key, cellData)
 	}
 	return pairs, nil
 }

 func appendGnbCells(inventoryName string, cells []*entities.ServedNRCell, pairs []interface{}) ([]interface{}, error) {
 	for _, cell := range cells {
 		cellEntity := entities.Cell{Type: entities.Cell_NR_CELL, Cell: &entities.Cell_ServedNrCell{ServedNrCell: cell}}
 		cellData, err := proto.Marshal(&cellEntity)
 		if err != nil {
 			return pairs, common.NewInternalError(err)
 		}
 		key, rNibErr := common.ValidateAndBuildNrCellIdKey(cell.GetServedNrCellInformation().GetCellId())
 		if rNibErr != nil {
 			return pairs, rNibErr
 		}
 		pairs = append(pairs, key, cellData)
 		key, rNibErr = common.ValidateAndBuildCellNamePciKey(inventoryName, cell.GetServedNrCellInformation().GetNrPci())
 		if rNibErr != nil {
 			return pairs, rNibErr
 		}
 		pairs = append(pairs, key, cellData)
 	}
 	return pairs, nil
 }
	//
	// 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.

	// This source code is part of the near-RT RIC (RAN Intelligent Controller)
	// platform project (RICP).

	package rNibWriter

	import (
	"e2mgr/configuration"
	"encoding/json"
	"fmt"
	"gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/common"
	"gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
	"github.com/golang/protobuf/proto"
	)

	const (
	E2TAddressesKey = "E2TAddresses"
	RanAddedEvent = "ADDED"
	RanUpdatedEvent = "UPDATED"
	RanDeletedEvent = "DELETED"
	)

	type rNibWriterInstance struct {
	sdl common.ISdlInstance
	rnibWriterConfig configuration.RnibWriterConfig
	}

	/*
	RNibWriter interface allows saving data to the redis DB
	*/
	type RNibWriter interface {
	SaveNodeb(nodebInfo *entities.NodebInfo) error
	UpdateNodebInfo(nodebInfo *entities.NodebInfo) error
	UpdateNodebInfoAndPublish(nodebInfo *entities.NodebInfo) error
	SaveRanLoadInformation(inventoryName string, ranLoadInformation *entities.RanLoadInformation) error
	SaveE2TInstance(e2tInstance *entities.E2TInstance) error
	SaveE2TAddresses(addresses []string) error
	RemoveE2TInstance(e2tAddress string) error
	UpdateGnbCells(nodebInfo entities.NodebInfo, servedNrCells []entities.ServedNRCell) error
	RemoveServedNrCells(inventoryName string, servedNrCells []*entities.ServedNRCell) error
	UpdateNodebInfoOnConnectionStatusInversion(nodebInfo *entities.NodebInfo, ent string) error
	SaveGeneralConfiguration(config *entities.GeneralConfiguration) error
	RemoveEnb(nodebInfo *entities.NodebInfo) error
	RemoveServedCells(inventoryName string, servedCells []*entities.ServedCellInfo) error
	UpdateEnb(nodebInfo entities.NodebInfo, servedCells []entities.ServedCellInfo) error
	AddNbIdentity(nodeType entities.Node_Type, nbIdentity *entities.NbIdentity) error
	RemoveNbIdentity(nodeType entities.Node_Type, nbIdentity *entities.NbIdentity) error
	AddEnb(nodebInfo *entities.NodebInfo) error
	}

	/*
	GetRNibWriter returns reference to RNibWriter
	*/

	func GetRNibWriter(sdl common.ISdlInstance, rnibWriterConfig configuration.RnibWriterConfig) RNibWriter {
	return &rNibWriterInstance{sdl: sdl, rnibWriterConfig: rnibWriterConfig}
	}

	func getChannelsAndEventsPair(channel string, ranName string, event string) []string {
	return []string{channel, fmt.Sprintf("%s_%s", ranName, event)}
	}

	func (w rNibWriterInstance) AddNbIdentity(nodeType entities.Node_Type, nbIdentity entities.NbIdentity) error {
	nbIdData, err := proto.Marshal(nbIdentity)

	if err != nil {
	return common.NewInternalError(err)
	}

	err = w.sdl.AddMember(nodeType.String(), nbIdData)

	if err != nil {
	return common.NewInternalError(err)
	}
	return nil
	}

	func (w rNibWriterInstance) RemoveServedNrCells(inventoryName string, servedNrCells []entities.ServedNRCell) error {
	cellKeysToRemove := buildServedNRCellKeysToRemove(inventoryName, servedNrCells)

	err := w.sdl.Remove(cellKeysToRemove)

	if err != nil {
	return common.NewInternalError(err)
	}

	return nil
	}

	func (w rNibWriterInstance) RemoveServedCells(inventoryName string, servedCells []entities.ServedCellInfo) error {
	cellKeysToRemove := buildServedCellInfoKeysToRemove(inventoryName, servedCells)

	err := w.sdl.Remove(cellKeysToRemove)

	if err != nil {
	return common.NewInternalError(err)
	}

	return nil
	}

	func (w rNibWriterInstance) SaveGeneralConfiguration(config entities.GeneralConfiguration) error {

	err := w.SaveWithKeyAndMarshal(common.BuildGeneralConfigurationKey(), config)

	if err != nil {
	return common.NewInternalError(err)
	}

	return nil
	}

	/*
	SaveNodeb saves nodeB entity data in the redis DB according to the specified data model
	*/
	func (w rNibWriterInstance) SaveNodeb(nodebInfo entities.NodebInfo) error {

	data, err := proto.Marshal(nodebInfo)

	if err != nil {
	return common.NewInternalError(err)
	}

	var pairs []interface{}
	key, rNibErr := common.ValidateAndBuildNodeBNameKey(nodebInfo.RanName)

	if rNibErr != nil {
	return rNibErr
	}

	pairs = append(pairs, key, data)

	if nodebInfo.GlobalNbId != nil {

	key, rNibErr = common.ValidateAndBuildNodeBIdKey(nodebInfo.GetNodeType().String(), nodebInfo.GlobalNbId.GetPlmnId(), nodebInfo.GlobalNbId.GetNbId())
	if rNibErr != nil {
	return rNibErr
	}
	pairs = append(pairs, key, data)
	}

	if nodebInfo.GetEnb() != nil {
	pairs, rNibErr = appendEnbCells(nodebInfo.RanName, nodebInfo.GetEnb().GetServedCells(), pairs)
	if rNibErr != nil {
	return rNibErr
	}
	}

	if nodebInfo.GetGnb() != nil {
	pairs, rNibErr = appendGnbCells(nodebInfo.RanName, nodebInfo.GetGnb().GetServedNrCells(), pairs)
	if rNibErr != nil {
	return rNibErr
	}
	}

	err = w.sdl.Set(pairs)

	if err != nil {
	return common.NewInternalError(err)
	}

	return nil
	}

	func (w rNibWriterInstance) AddEnb(nodebInfo entities.NodebInfo) error {

	data, err := proto.Marshal(nodebInfo)

	if err != nil {
	return common.NewInternalError(err)
	}

	var pairs []interface{}
	key, rNibErr := common.ValidateAndBuildNodeBNameKey(nodebInfo.RanName)

	if rNibErr != nil {
	return rNibErr
	}

	pairs = append(pairs, key, data)

	if nodebInfo.GlobalNbId != nil {

	key, rNibErr = common.ValidateAndBuildNodeBIdKey(nodebInfo.GetNodeType().String(), nodebInfo.GlobalNbId.GetPlmnId(), nodebInfo.GlobalNbId.GetNbId())
	if rNibErr != nil {
	return rNibErr
	}
	pairs = append(pairs, key, data)
	}

	pairs, rNibErr = appendEnbCells(nodebInfo.RanName, nodebInfo.GetEnb().GetServedCells(), pairs)
	if rNibErr != nil {
	return rNibErr
	}

	channelsAndEvents := getChannelsAndEventsPair(w.rnibWriterConfig.RanManipulationMessageChannel, nodebInfo.RanName, RanAddedEvent)
	err = w.sdl.SetAndPublish(channelsAndEvents, pairs)
	if err != nil {
	return common.NewInternalError(err)
	}

	return nil
	}

	func (w rNibWriterInstance) UpdateGnbCells(nodebInfo entities.NodebInfo, servedNrCells []*entities.ServedNRCell) error {

	pairs, err := buildUpdateNodebInfoPairs(nodebInfo)

	if err != nil {
	return err
	}

	pairs, err = appendGnbCells(nodebInfo.RanName, servedNrCells, pairs)

	if err != nil {
	return err
	}

	channelsAndEvents := getChannelsAndEventsPair(w.rnibWriterConfig.RanManipulationMessageChannel, nodebInfo.RanName, RanUpdatedEvent)
	err = w.sdl.SetAndPublish(channelsAndEvents, pairs)

	if err != nil {
	return common.NewInternalError(err)
	}

	return nil
	}

	func buildServedNRCellKeysToRemove(inventoryName string, servedNrCellsToRemove []*entities.ServedNRCell) []string {

	var cellKeysToRemove []string

	for _, cell := range servedNrCellsToRemove {

	key, _ := common.ValidateAndBuildNrCellIdKey(cell.GetServedNrCellInformation().GetCellId())

	if len(key) != 0 {
	cellKeysToRemove = append(cellKeysToRemove, key)
	}

	key, _ = common.ValidateAndBuildCellNamePciKey(inventoryName, cell.GetServedNrCellInformation().GetNrPci())

	if len(key) != 0 {
	cellKeysToRemove = append(cellKeysToRemove, key)
	}
	}

	return cellKeysToRemove
	}

	func buildServedCellInfoKeysToRemove(inventoryName string, servedCellsToRemove []*entities.ServedCellInfo) []string {

	var cellKeysToRemove []string

	for _, cell := range servedCellsToRemove {

	key, _ := common.ValidateAndBuildCellIdKey(cell.GetCellId())

	if len(key) != 0 {
	cellKeysToRemove = append(cellKeysToRemove, key)
	}

	key, _ = common.ValidateAndBuildCellNamePciKey(inventoryName, cell.GetPci())

	if len(key) != 0 {
	cellKeysToRemove = append(cellKeysToRemove, key)
	}
	}

	return cellKeysToRemove
	}

	func buildUpdateNodebInfoPairs(nodebInfo *entities.NodebInfo) ([]interface{}, error) {
	nodebNameKey, rNibErr := common.ValidateAndBuildNodeBNameKey(nodebInfo.GetRanName())

	if rNibErr != nil {
	return []interface{}{}, rNibErr
	}

	nodebIdKey, buildNodebIdKeyError := common.ValidateAndBuildNodeBIdKey(nodebInfo.GetNodeType().String(), nodebInfo.GlobalNbId.GetPlmnId(), nodebInfo.GlobalNbId.GetNbId())

	data, err := proto.Marshal(nodebInfo)

	if err != nil {
	return []interface{}{}, common.NewInternalError(err)
	}

	pairs := []interface{}{nodebNameKey, data}

	if buildNodebIdKeyError == nil {
	pairs = append(pairs, nodebIdKey, data)
	}

	return pairs, nil
	}

	func (w rNibWriterInstance) buildRemoveEnbKeys(nodebInfo entities.NodebInfo) ([]string, error) {
	keys := buildServedCellInfoKeysToRemove(nodebInfo.GetRanName(), nodebInfo.GetEnb().GetServedCells())

	nodebNameKey, rNibErr := common.ValidateAndBuildNodeBNameKey(nodebInfo.GetRanName())

	if rNibErr != nil {
	return []string{}, rNibErr
	}

	keys = append(keys, nodebNameKey)

	nodebIdKey, buildNodebIdKeyError := common.ValidateAndBuildNodeBIdKey(nodebInfo.GetNodeType().String(), nodebInfo.GlobalNbId.GetPlmnId(), nodebInfo.GlobalNbId.GetNbId())

	if buildNodebIdKeyError == nil {
	keys = append(keys, nodebIdKey)
	}

	return keys, nil
	}

	func (w rNibWriterInstance) RemoveNbIdentity(nodeType entities.Node_Type, nbIdentity entities.NbIdentity) error {
	nbIdData, err := proto.Marshal(nbIdentity)
	if err != nil {
	return common.NewInternalError(err)
	}
	err = w.sdl.RemoveMember(nodeType.String(), nbIdData)
	if err != nil {
	return common.NewInternalError(err)
	}
	return nil
	}

	func (w rNibWriterInstance) updateNodebInfo(nodebInfo entities.NodebInfo, publish bool) error {

	pairs, err := buildUpdateNodebInfoPairs(nodebInfo)

	if err != nil {
	return err
	}

	if publish {
	channelsAndEvents := getChannelsAndEventsPair(w.rnibWriterConfig.RanManipulationMessageChannel, nodebInfo.RanName, RanUpdatedEvent)
	err = w.sdl.SetAndPublish(channelsAndEvents, pairs)
	} else {
	err = w.sdl.Set(pairs)
	}

	if err != nil {
	return common.NewInternalError(err)
	}

	return nil
	}

	/*
	UpdateNodebInfo...
	*/
	func (w rNibWriterInstance) UpdateNodebInfo(nodebInfo entities.NodebInfo) error {
	return w.updateNodebInfo(nodebInfo, false)
	}

	/*
	UpdateNodebInfoAndPublish...
	*/
	func (w rNibWriterInstance) UpdateNodebInfoAndPublish(nodebInfo entities.NodebInfo) error {
	return w.updateNodebInfo(nodebInfo, true)
	}


	/*
	SaveRanLoadInformation stores ran load information for the provided ran
	*/
	func (w rNibWriterInstance) SaveRanLoadInformation(inventoryName string, ranLoadInformation entities.RanLoadInformation) error {

	key, rnibErr := common.ValidateAndBuildRanLoadInformationKey(inventoryName)

	if rnibErr != nil {
	return rnibErr
	}

	data, err := proto.Marshal(ranLoadInformation)

	if err != nil {
	return common.NewInternalError(err)
	}

	var pairs []interface{}
	pairs = append(pairs, key, data)

	err = w.sdl.Set(pairs)

	if err != nil {
	return common.NewInternalError(err)
	}

	return nil
	}

	func (w rNibWriterInstance) SaveE2TInstance(e2tInstance entities.E2TInstance) error {

	key, rnibErr := common.ValidateAndBuildE2TInstanceKey(e2tInstance.Address)

	if rnibErr != nil {
	return rnibErr
	}

	data, err := json.Marshal(e2tInstance)

	if err != nil {
	return common.NewInternalError(err)
	}

	var pairs []interface{}
	pairs = append(pairs, key, data)

	err = w.sdl.Set(pairs)

	if err != nil {
	return common.NewInternalError(err)
	}

	return nil
	}

	func (w *rNibWriterInstance) SaveE2TAddresses(addresses []string) error {

	data, err := json.Marshal(addresses)

	if err != nil {
	return common.NewInternalError(err)
	}

	var pairs []interface{}
	pairs = append(pairs, E2TAddressesKey, data)

	err = w.sdl.Set(pairs)

	if err != nil {
	return common.NewInternalError(err)
	}

	return nil
	}

	func (w *rNibWriterInstance) RemoveE2TInstance(address string) error {
	key, rNibErr := common.ValidateAndBuildE2TInstanceKey(address)
	if rNibErr != nil {
	return rNibErr
	}
	err := w.sdl.Remove([]string{key})

	if err != nil {
	return common.NewInternalError(err)
	}
	return nil
	}

	func (w *rNibWriterInstance) SaveWithKeyAndMarshal(key string, entity interface{}) error {

	data, err := json.Marshal(entity)

	if err != nil {
	return common.NewInternalError(err)
	}

	var pairs []interface{}
	pairs = append(pairs, key, data)

	err = w.sdl.Set(pairs)

	if err != nil {
	return common.NewInternalError(err)
	}

	return nil
	}

	/*
	UpdateNodebInfoOnConnectionStatusInversion...
	*/
	func (w rNibWriterInstance) UpdateNodebInfoOnConnectionStatusInversion(nodebInfo entities.NodebInfo, event string) error {

	pairs, err := buildUpdateNodebInfoPairs(nodebInfo)

	if err != nil {
	return err
	}

	err = w.sdl.SetAndPublish([]string{w.rnibWriterConfig.StateChangeMessageChannel, event}, pairs)

	if err != nil {
	return common.NewInternalError(err)
	}

	return nil
	}

	func (w rNibWriterInstance) RemoveEnb(nodebInfo entities.NodebInfo) error {
	keysToRemove, err := w.buildRemoveEnbKeys(nodebInfo)
	if err != nil {
	return err
	}

	channelsAndEvents := getChannelsAndEventsPair(w.rnibWriterConfig.RanManipulationMessageChannel, nodebInfo.RanName, RanDeletedEvent)
	err = w.sdl.RemoveAndPublish(channelsAndEvents, keysToRemove)

	if err != nil {
	return common.NewInternalError(err)
	}

	return nil
	}

	func (w rNibWriterInstance) UpdateEnb(nodebInfo entities.NodebInfo, servedCells []*entities.ServedCellInfo) error {

	pairs, err := buildUpdateNodebInfoPairs(nodebInfo)

	if err != nil {
	return err
	}

	pairs, err = appendEnbCells(nodebInfo.RanName, servedCells, pairs)

	if err != nil {
	return err
	}

	channelsAndEvents := getChannelsAndEventsPair(w.rnibWriterConfig.RanManipulationMessageChannel, nodebInfo.RanName, RanUpdatedEvent)
	err = w.sdl.SetAndPublish(channelsAndEvents, pairs)

	if err != nil {
	return common.NewInternalError(err)
	}

	return nil
	}

	/*
	Close the writer
	*/
	func Close() {
	//Nothing to do
	}

	func appendEnbCells(inventoryName string, cells []*entities.ServedCellInfo, pairs []interface{}) ([]interface{}, error) {
	for _, cell := range cells {
	cellEntity := entities.Cell{Type: entities.Cell_LTE_CELL, Cell: &entities.Cell_ServedCellInfo{ServedCellInfo: cell}}
	cellData, err := proto.Marshal(&cellEntity)
	if err != nil {
	return pairs, common.NewInternalError(err)
	}
	key, rNibErr := common.ValidateAndBuildCellIdKey(cell.GetCellId())
	if rNibErr != nil {
	return pairs, rNibErr
	}
	pairs = append(pairs, key, cellData)
	key, rNibErr = common.ValidateAndBuildCellNamePciKey(inventoryName, cell.GetPci())
	if rNibErr != nil {
	return pairs, rNibErr
	}
	pairs = append(pairs, key, cellData)
	}
	return pairs, nil
	}

	func appendGnbCells(inventoryName string, cells []*entities.ServedNRCell, pairs []interface{}) ([]interface{}, error) {
	for _, cell := range cells {
	cellEntity := entities.Cell{Type: entities.Cell_NR_CELL, Cell: &entities.Cell_ServedNrCell{ServedNrCell: cell}}
	cellData, err := proto.Marshal(&cellEntity)
	if err != nil {
	return pairs, common.NewInternalError(err)
	}
	key, rNibErr := common.ValidateAndBuildNrCellIdKey(cell.GetServedNrCellInformation().GetCellId())
	if rNibErr != nil {
	return pairs, rNibErr
	}
	pairs = append(pairs, key, cellData)
	key, rNibErr = common.ValidateAndBuildCellNamePciKey(inventoryName, cell.GetServedNrCellInformation().GetNrPci())
	if rNibErr != nil {
	return pairs, rNibErr
	}
	pairs = append(pairs, key, cellData)
	}
	return pairs, nil
	}