135 lines
5.4 KiB
Go
135 lines
5.4 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 managers
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import (
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"e2mgr/clients"
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"e2mgr/e2managererrors"
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"e2mgr/logger"
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"e2mgr/services"
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"gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
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)
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type E2TAssociationManager struct {
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logger *logger.Logger
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rnibDataService services.RNibDataService
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e2tInstanceManager IE2TInstancesManager
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rmClient clients.IRoutingManagerClient
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}
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func NewE2TAssociationManager(logger *logger.Logger, rnibDataService services.RNibDataService, e2tInstanceManager IE2TInstancesManager, rmClient clients.IRoutingManagerClient) *E2TAssociationManager {
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return &E2TAssociationManager{
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logger: logger,
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rnibDataService: rnibDataService,
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e2tInstanceManager: e2tInstanceManager,
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rmClient: rmClient,
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}
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}
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func (m *E2TAssociationManager) AssociateRan(e2tAddress string, nodebInfo *entities.NodebInfo) error {
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ranName := nodebInfo.RanName
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m.logger.Infof("#E2TAssociationManager.AssociateRan - Associating RAN %s to E2T Instance address: %s", ranName, e2tAddress)
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err := m.associateRanAndUpdateNodeb(e2tAddress, nodebInfo)
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if err != nil {
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m.logger.Errorf("#E2TAssociationManager.AssociateRan - RoutingManager failure: Failed to associate RAN %s to E2T %s. Error: %s", nodebInfo, e2tAddress, err)
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return err
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}
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err = m.e2tInstanceManager.AddRansToInstance(e2tAddress, []string{ranName})
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if err != nil {
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m.logger.Errorf("#E2TAssociationManager.AssociateRan - RAN name: %s - Failed to add RAN to E2T instance %s. Error: %s", ranName, e2tAddress, err)
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return e2managererrors.NewRnibDbError()
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}
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m.logger.Infof("#E2TAssociationManager.AssociateRan - successfully associated RAN %s with E2T %s", ranName, e2tAddress)
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return nil
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}
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func (m *E2TAssociationManager) associateRanAndUpdateNodeb(e2tAddress string, nodebInfo *entities.NodebInfo) error {
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rmErr := m.rmClient.AssociateRanToE2TInstance(e2tAddress, nodebInfo.RanName)
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if rmErr != nil {
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nodebInfo.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
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} else {
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nodebInfo.ConnectionStatus = entities.ConnectionStatus_CONNECTED
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nodebInfo.AssociatedE2TInstanceAddress = e2tAddress
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}
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rNibErr := m.rnibDataService.UpdateNodebInfo(nodebInfo)
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if rNibErr != nil {
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m.logger.Errorf("#E2TAssociationManager.associateRanAndUpdateNodeb - RAN name: %s - Failed to update nodeb entity in rNib. Error: %s", nodebInfo.RanName, rNibErr)
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}
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var err error
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if rmErr != nil {
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err = e2managererrors.NewRoutingManagerError()
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} else if rNibErr != nil{
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err = e2managererrors.NewRnibDbError()
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}
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return err
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}
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func (m *E2TAssociationManager) DissociateRan(e2tAddress string, ranName string) error {
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m.logger.Infof("#E2TAssociationManager.DissociateRan - Dissociating RAN %s from E2T Instance address: %s", ranName, e2tAddress)
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nodebInfo, rnibErr := m.rnibDataService.GetNodeb(ranName)
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if rnibErr != nil {
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m.logger.Errorf("#E2TAssociationManager.DissociateRan - RAN name: %s - Failed fetching RAN from rNib. Error: %s", ranName, rnibErr)
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return rnibErr
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}
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nodebInfo.AssociatedE2TInstanceAddress = ""
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rnibErr = m.rnibDataService.UpdateNodebInfo(nodebInfo)
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if rnibErr != nil {
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m.logger.Errorf("#E2TAssociationManager.DissociateRan - RAN name: %s - Failed to update RAN.AssociatedE2TInstanceAddress in rNib. Error: %s", ranName, rnibErr)
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return rnibErr
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}
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err := m.e2tInstanceManager.RemoveRanFromInstance(ranName, e2tAddress)
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if err != nil {
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m.logger.Errorf("#E2TAssociationManager.DissociateRan - RAN name: %s - Failed to remove RAN from E2T instance %s. Error: %s", ranName, e2tAddress, err)
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return err
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}
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err = m.rmClient.DissociateRanE2TInstance(e2tAddress, ranName)
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if err != nil {
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m.logger.Errorf("#E2TAssociationManager.DissociateRan - RoutingManager failure: Failed to dissociate RAN %s from E2T %s. Error: %s", ranName, e2tAddress, err)
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} else {
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m.logger.Infof("#E2TAssociationManager.DissociateRan - successfully dissociated RAN %s from E2T %s", ranName, e2tAddress)
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}
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return nil
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}
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func (m *E2TAssociationManager) RemoveE2tInstance(e2tInstance *entities.E2TInstance) error {
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m.logger.Infof("#E2TAssociationManager.RemoveE2tInstance - Removing E2T %s and dessociating its associated RANs.", e2tInstance.Address)
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err := m.rmClient.DeleteE2TInstance(e2tInstance.Address, e2tInstance.AssociatedRanList)
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if err != nil {
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m.logger.Warnf("#E2TAssociationManager.RemoveE2tInstance - RoutingManager failure: Failed to delete E2T %s. Error: %s", e2tInstance.Address, err)
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// log and continue
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}
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err = m.e2tInstanceManager.RemoveE2TInstance(e2tInstance.Address)
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if err != nil {
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m.logger.Errorf("#E2TAssociationManager.RemoveE2tInstance - Failed to remove E2T %s. Error: %s", e2tInstance.Address, err)
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return err
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}
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m.logger.Infof("#E2TAssociationManager.RemoveE2tInstance - E2T %s successfully removed.", e2tInstance.Address)
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return nil
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}
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