311 lines
9.3 KiB
Go
311 lines
9.3 KiB
Go
//
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// Copyright 2019 AT&T Intellectual Property
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// Copyright 2019 Nokia
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// This source code is part of the near-RT RIC (RAN Intelligent Controller)
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// platform project (RICP).
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package services
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import (
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"e2mgr/configuration"
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"e2mgr/logger"
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"e2mgr/rNibWriter"
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"gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/common"
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"gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
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"gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/reader"
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"net"
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"time"
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)
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type RNibDataService interface {
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SaveNodeb(nbIdentity *entities.NbIdentity, nb *entities.NodebInfo) error
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UpdateNodebInfo(nodebInfo *entities.NodebInfo) error
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SaveRanLoadInformation(inventoryName string, ranLoadInformation *entities.RanLoadInformation) error
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GetNodeb(ranName string) (*entities.NodebInfo, error)
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GetListNodebIds() ([]*entities.NbIdentity, error)
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PingRnib() bool
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GetE2TInstance(address string) (*entities.E2TInstance, error)
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GetE2TInstances(addresses []string) ([]*entities.E2TInstance, error)
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GetE2TAddresses() ([]string, error)
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SaveE2TInstance(e2tInstance *entities.E2TInstance) error
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SaveE2TAddresses(addresses []string) error
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GetE2TInstanceNoLogs(address string) (*entities.E2TInstance, error)
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GetE2TInstancesNoLogs(addresses []string) ([]*entities.E2TInstance, error)
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SaveE2TInstanceNoLogs(e2tInstance *entities.E2TInstance) error
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GetE2TAddressesNoLogs() ([]string, error)
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RemoveE2TInstance(e2tAddress string) error
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UpdateGnbCells(nodebInfo *entities.NodebInfo, servedNrCells []*entities.ServedNRCell) error
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RemoveServedNrCells(inventoryName string, servedNrCells []*entities.ServedNRCell) error
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}
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type rNibDataService struct {
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logger *logger.Logger
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rnibReader reader.RNibReader
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rnibWriter rNibWriter.RNibWriter
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maxAttempts int
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retryInterval time.Duration
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}
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func NewRnibDataService(logger *logger.Logger, config *configuration.Configuration, rnibReader reader.RNibReader, rnibWriter rNibWriter.RNibWriter) *rNibDataService {
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return &rNibDataService{
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logger: logger,
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rnibReader: rnibReader,
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rnibWriter: rnibWriter,
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maxAttempts: config.MaxRnibConnectionAttempts,
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retryInterval: time.Duration(config.RnibRetryIntervalMs) * time.Millisecond,
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}
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}
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func (w *rNibDataService) RemoveServedNrCells(inventoryName string, servedNrCells []*entities.ServedNRCell) error {
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err := w.retry("RemoveServedNrCells", func() (err error) {
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err = w.rnibWriter.RemoveServedNrCells(inventoryName, servedNrCells)
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return
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})
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return err
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}
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func (w *rNibDataService) UpdateGnbCells(nodebInfo *entities.NodebInfo, servedNrCells []*entities.ServedNRCell) error {
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w.logger.Infof("#RnibDataService.UpdateGnbCells - nodebInfo: %s, servedNrCells: %s", nodebInfo, servedNrCells)
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err := w.retry("UpdateGnbCells", func() (err error) {
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err = w.rnibWriter.UpdateGnbCells(nodebInfo, servedNrCells)
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return
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})
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return err
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}
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func (w *rNibDataService) UpdateNodebInfo(nodebInfo *entities.NodebInfo) error {
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w.logger.Infof("#RnibDataService.UpdateNodebInfo - nodebInfo: %s", nodebInfo)
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err := w.retry("UpdateNodebInfo", func() (err error) {
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err = w.rnibWriter.UpdateNodebInfo(nodebInfo)
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return
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})
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return err
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}
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func (w *rNibDataService) SaveNodeb(nbIdentity *entities.NbIdentity, nb *entities.NodebInfo) error {
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w.logger.Infof("#RnibDataService.SaveNodeb - nbIdentity: %s, nodebInfo: %s", nbIdentity, nb)
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err := w.retry("SaveNodeb", func() (err error) {
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err = w.rnibWriter.SaveNodeb(nbIdentity, nb)
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return
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})
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return err
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}
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func (w *rNibDataService) SaveRanLoadInformation(inventoryName string, ranLoadInformation *entities.RanLoadInformation) error {
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w.logger.Infof("#RnibDataService.SaveRanLoadInformation - inventoryName: %s, ranLoadInformation: %s", inventoryName, ranLoadInformation)
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err := w.retry("SaveRanLoadInformation", func() (err error) {
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err = w.rnibWriter.SaveRanLoadInformation(inventoryName, ranLoadInformation)
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return
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})
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return err
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}
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func (w *rNibDataService) GetNodeb(ranName string) (*entities.NodebInfo, error) {
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var nodeb *entities.NodebInfo = nil
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err := w.retry("GetNodeb", func() (err error) {
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nodeb, err = w.rnibReader.GetNodeb(ranName)
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return
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})
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if err == nil {
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w.logger.Infof("#RnibDataService.GetNodeb - RAN name: %s, connection status: %s, associated E2T: %s", nodeb.RanName, nodeb.ConnectionStatus, nodeb.AssociatedE2TInstanceAddress)
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}
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return nodeb, err
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}
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func (w *rNibDataService) GetListNodebIds() ([]*entities.NbIdentity, error) {
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var nodeIds []*entities.NbIdentity = nil
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err := w.retry("GetListNodebIds", func() (err error) {
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nodeIds, err = w.rnibReader.GetListNodebIds()
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return
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})
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if err == nil {
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w.logger.Infof("#RnibDataService.GetListNodebIds - RANs count: %d", len(nodeIds))
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}
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return nodeIds, err
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}
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func (w *rNibDataService) GetE2TInstance(address string) (*entities.E2TInstance, error) {
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var e2tInstance *entities.E2TInstance = nil
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err := w.retry("GetE2TInstance", func() (err error) {
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e2tInstance, err = w.rnibReader.GetE2TInstance(address)
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return
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})
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if err == nil {
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w.logger.Infof("#RnibDataService.GetE2TInstance - E2T instance address: %s, state: %s, associated RANs count: %d, keep Alive ts: %d", e2tInstance.Address, e2tInstance.State, len(e2tInstance.AssociatedRanList), e2tInstance.KeepAliveTimestamp)
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}
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return e2tInstance, err
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}
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func (w *rNibDataService) GetE2TInstanceNoLogs(address string) (*entities.E2TInstance, error) {
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var e2tInstance *entities.E2TInstance = nil
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err := w.retry("GetE2TInstance", func() (err error) {
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e2tInstance, err = w.rnibReader.GetE2TInstance(address)
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return
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})
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return e2tInstance, err
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}
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func (w *rNibDataService) GetE2TInstances(addresses []string) ([]*entities.E2TInstance, error) {
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w.logger.Infof("#RnibDataService.GetE2TInstances - addresses: %s", addresses)
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var e2tInstances []*entities.E2TInstance = nil
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err := w.retry("GetE2TInstance", func() (err error) {
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e2tInstances, err = w.rnibReader.GetE2TInstances(addresses)
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return
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})
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return e2tInstances, err
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}
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func (w *rNibDataService) GetE2TInstancesNoLogs(addresses []string) ([]*entities.E2TInstance, error) {
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var e2tInstances []*entities.E2TInstance = nil
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err := w.retry("GetE2TInstance", func() (err error) {
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e2tInstances, err = w.rnibReader.GetE2TInstances(addresses)
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return
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})
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return e2tInstances, err
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}
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func (w *rNibDataService) GetE2TAddresses() ([]string, error) {
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var e2tAddresses []string = nil
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err := w.retry("GetE2TAddresses", func() (err error) {
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e2tAddresses, err = w.rnibReader.GetE2TAddresses()
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return
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})
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if err == nil {
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w.logger.Infof("#RnibDataService.GetE2TAddresses - addresses: %s", e2tAddresses)
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}
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return e2tAddresses, err
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}
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func (w *rNibDataService) GetE2TAddressesNoLogs() ([]string, error) {
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var e2tAddresses []string = nil
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err := w.retry("GetE2TAddresses", func() (err error) {
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e2tAddresses, err = w.rnibReader.GetE2TAddresses()
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return
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})
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return e2tAddresses, err
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}
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func (w *rNibDataService) SaveE2TInstance(e2tInstance *entities.E2TInstance) error {
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w.logger.Infof("#RnibDataService.SaveE2TInstance - E2T instance address: %s, podName: %s, state: %s, associated RANs count: %d, keep Alive ts: %d", e2tInstance.Address, e2tInstance.PodName, e2tInstance.State, len(e2tInstance.AssociatedRanList), e2tInstance.KeepAliveTimestamp)
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return w.SaveE2TInstanceNoLogs(e2tInstance)
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}
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func (w *rNibDataService) SaveE2TInstanceNoLogs(e2tInstance *entities.E2TInstance) error {
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err := w.retry("SaveE2TInstance", func() (err error) {
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err = w.rnibWriter.SaveE2TInstance(e2tInstance)
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return
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})
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return err
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}
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func (w *rNibDataService) SaveE2TAddresses(addresses []string) error {
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w.logger.Infof("#RnibDataService.SaveE2TAddresses - addresses: %s", addresses)
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err := w.retry("SaveE2TAddresses", func() (err error) {
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err = w.rnibWriter.SaveE2TAddresses(addresses)
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return
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})
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return err
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}
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func (w *rNibDataService) RemoveE2TInstance(e2tAddress string) error {
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w.logger.Infof("#RnibDataService.RemoveE2TInstance - e2tAddress: %s", e2tAddress)
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err := w.retry("RemoveE2TInstance", func() (err error) {
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err = w.rnibWriter.RemoveE2TInstance(e2tAddress)
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return
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})
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return err
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}
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func (w *rNibDataService) PingRnib() bool {
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err := w.retry("GetListNodebIds", func() (err error) {
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_, err = w.rnibReader.GetListNodebIds()
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return
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})
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return !isRnibConnectionError(err)
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}
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func (w *rNibDataService) retry(rnibFunc string, f func() error) (err error) {
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attempts := w.maxAttempts
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for i := 1; ; i++ {
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err = f()
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if err == nil {
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return
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}
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if !isRnibConnectionError(err) {
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return err
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}
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if i >= attempts {
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w.logger.Errorf("#RnibDataService.retry - after %d attempts of %s, last error: %s", attempts, rnibFunc, err)
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return err
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}
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time.Sleep(w.retryInterval)
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w.logger.Infof("#RnibDataService.retry - retrying %d %s after error: %s", i, rnibFunc, err)
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}
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}
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func isRnibConnectionError(err error) bool {
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internalErr, ok := err.(*common.InternalError)
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if !ok {
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return false
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}
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_, ok = internalErr.Err.(*net.OpError)
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return ok
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}
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