--- /dev/null
+//
+// 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 rNibWriter
+
+import (
+ "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
+ "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/common"
+ "errors"
+ "fmt"
+ "gerrit.o-ran-sc.org/r/ric-plt/sdlgo"
+ "github.com/golang/protobuf/proto"
+)
+
+
+
+var writerPool *common.Pool
+
+type rNibWriterInstance struct {
+ sdl *common.ISdlInstance
+ namespace string
+}
+/*
+RNibWriter interface allows saving data to the redis DB
+ */
+type RNibWriter interface {
+ SaveNodeb(nbIdentity *entities.NbIdentity, nb *entities.NodebInfo) common.IRNibError
+ SaveRanLoadInformation(inventoryName string, ranLoadInformation *entities.RanLoadInformation) common.IRNibError
+}
+/*
+Init initializes the infrastructure required for the RNibWriter instance
+ */
+func Init(namespace string, poolSize int) {
+ initPool(poolSize,
+ func() interface{} {
+ var sdlI common.ISdlInstance = sdlgo.NewSdlInstance(namespace, sdlgo.NewDatabase())
+ return &rNibWriterInstance{sdl: &sdlI, namespace: namespace}
+ },
+ func(obj interface{}) {
+ (*obj.(*rNibWriterInstance).sdl).Close()
+ })
+}
+/*
+InitPool initializes the writer's instances pool
+ */
+func initPool(poolSize int, newObj func() interface{}, destroyObj func(interface{})) {
+ writerPool = common.NewPool(poolSize, newObj, destroyObj)
+}
+/*
+GetRNibWriter returns RNibWriter instance from the pool
+ */
+func GetRNibWriter() RNibWriter {
+ return writerPool.Get().(RNibWriter)
+}
+/*
+SaveNodeb saves nodeB entity data in the redis DB according to the specified data model
+ */
+func (w *rNibWriterInstance) SaveNodeb(nbIdentity *entities.NbIdentity, entity *entities.NodebInfo) common.IRNibError {
+
+ isNotEmptyIdentity := isNotEmpty(nbIdentity)
+
+ if isNotEmptyIdentity && entity.GetNodeType() == entities.Node_UNKNOWN{
+ return common.NewValidationError(errors.New( fmt.Sprintf("#rNibWriter.saveNodeB - Unknown responding node type, entity: %v", entity)))
+ }
+ defer writerPool.Put(w)
+ data, err := proto.Marshal(entity)
+ if err != nil {
+ return common.NewInternalError(err)
+ }
+ var pairs []interface{}
+ key, rNibErr := common.ValidateAndBuildNodeBNameKey(nbIdentity.InventoryName)
+ if rNibErr != nil{
+ return rNibErr
+ }
+ pairs = append(pairs, key, data)
+
+ if isNotEmptyIdentity {
+ key, rNibErr = common.ValidateAndBuildNodeBIdKey(entity.GetNodeType().String(), nbIdentity.GlobalNbId.GetPlmnId(), nbIdentity.GlobalNbId.GetNbId())
+ if rNibErr != nil{
+ return rNibErr
+ }
+ pairs = append(pairs, key, data)
+ }
+
+ if entity.GetEnb() != nil {
+ pairs, rNibErr = appendEnbCells(nbIdentity, entity.GetEnb().GetServedCells(), pairs)
+ if rNibErr != nil{
+ return rNibErr
+ }
+ }
+ if entity.GetGnb() != nil {
+ pairs, rNibErr = appendGnbCells(nbIdentity, entity.GetGnb().GetServedNrCells(), pairs)
+ if rNibErr != nil{
+ return rNibErr
+ }
+ }
+ err = (*w.sdl).Set(pairs)
+ if err != nil {
+ return common.NewInternalError(err)
+ }
+ if isNotEmptyIdentity {
+ nbIdData, err := proto.Marshal(nbIdentity)
+ if err != nil {
+ return common.NewInternalError(err)
+ }
+ err = (*w.sdl).AddMember(entity.GetNodeType().String(), nbIdData)
+ if err != nil {
+ return common.NewInternalError(err)
+ }
+ }
+ return nil
+}
+
+/*
+SaveRanLoadInformation stores ran load information for the provided ran
+*/
+func (w *rNibWriterInstance) SaveRanLoadInformation(inventoryName string, ranLoadInformation *entities.RanLoadInformation) common.IRNibError {
+
+ defer writerPool.Put(w)
+
+ 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
+}
+
+/*
+Close closes writer's pool
+ */
+func Close(){
+ writerPool.Close()
+}
+
+func appendEnbCells(nbIdentity *entities.NbIdentity, cells []*entities.ServedCellInfo, pairs []interface{}) ([]interface{}, common.IRNibError) {
+ 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(nbIdentity.InventoryName, cell.GetPci())
+ if rNibErr != nil{
+ return pairs, rNibErr
+ }
+ pairs = append(pairs, key, cellData)
+ }
+ return pairs, nil
+}
+
+func appendGnbCells(nbIdentity *entities.NbIdentity, cells []*entities.ServedNRCell, pairs []interface{}) ([]interface{}, common.IRNibError) {
+ 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(nbIdentity.InventoryName, cell.GetServedNrCellInformation().GetNrPci())
+ if rNibErr != nil{
+ return pairs, rNibErr
+ }
+ pairs = append(pairs, key, cellData)
+ }
+ return pairs, nil
+}
+
+func isNotEmpty(nbIdentity *entities.NbIdentity) bool {
+ return nbIdentity.GlobalNbId != nil && nbIdentity.GlobalNbId.PlmnId != "" && nbIdentity.GlobalNbId.NbId != ""
+}
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