2 // Copyright 2019 AT&T Intellectual Property
3 // Copyright 2019 Nokia
5 // Licensed under the Apache License, Version 2.0 (the "License");
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
9 // http://www.apache.org/licenses/LICENSE-2.0
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
18 // This source code is part of the near-RT RIC (RAN Intelligent Controller)
19 // platform project (RICP).
27 "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/common"
28 "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
32 type IE2TShutdownManager interface {
33 Shutdown(e2tInstance *entities.E2TInstance) error
36 type E2TShutdownManager struct {
38 config *configuration.Configuration
39 rnibDataService services.RNibDataService
40 e2TInstancesManager IE2TInstancesManager
41 e2tAssociationManager *E2TAssociationManager
44 func NewE2TShutdownManager(logger *logger.Logger, config *configuration.Configuration, rnibDataService services.RNibDataService, e2TInstancesManager IE2TInstancesManager, e2tAssociationManager *E2TAssociationManager) *E2TShutdownManager {
45 return &E2TShutdownManager{
48 rnibDataService: rnibDataService,
49 e2TInstancesManager: e2TInstancesManager,
50 e2tAssociationManager: e2tAssociationManager,
54 func (m E2TShutdownManager) Shutdown(e2tInstance *entities.E2TInstance) error {
55 m.logger.Infof("#E2TShutdownManager.Shutdown - E2T %s is Dead, RIP", e2tInstance.Address)
57 isE2tInstanceBeingDeleted := m.isE2tInstanceAlreadyBeingDeleted(e2tInstance)
58 if isE2tInstanceBeingDeleted {
59 m.logger.Infof("#E2TShutdownManager.Shutdown - E2T %s is already being deleted", e2tInstance.Address)
63 err := m.markE2tInstanceToBeDeleted(e2tInstance)
65 m.logger.Errorf("#E2TShutdownManager.Shutdown - Failed to mark E2T %s as 'ToBeDeleted'.", e2tInstance.Address)
69 err = m.clearNodebsAssociation(e2tInstance.AssociatedRanList)
71 m.logger.Errorf("#E2TShutdownManager.Shutdown - Failed to clear nodebs association to E2T %s.", e2tInstance.Address)
75 err = m.e2tAssociationManager.RemoveE2tInstance(e2tInstance)
77 m.logger.Errorf("#E2TShutdownManager.Shutdown - Failed to remove E2T %s.", e2tInstance.Address)
82 m.logger.Infof("#E2TShutdownManager.Shutdown - E2T %s was sutdown successfully.", e2tInstance.Address)
86 func (m E2TShutdownManager) clearNodebsAssociation(ranNamesToBeDissociated []string) error {
87 for _, ranName := range ranNamesToBeDissociated {
88 nodeb, err := m.rnibDataService.GetNodeb(ranName)
90 m.logger.Warnf("#E2TShutdownManager.associateAndSetupNodebs - Failed to get nodeb %s from db.", ranName)
91 _, ok := err.(*common.ResourceNotFoundError)
97 nodeb.AssociatedE2TInstanceAddress = ""
98 nodeb.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
100 err = m.rnibDataService.UpdateNodebInfo(nodeb)
102 m.logger.Errorf("#E2TShutdownManager.associateAndSetupNodebs - Failed to save nodeb %s from db.", ranName)
109 func (m E2TShutdownManager) markE2tInstanceToBeDeleted(e2tInstance *entities.E2TInstance) error {
110 e2tInstance.State = entities.ToBeDeleted
111 e2tInstance.DeletionTimestamp = time.Now().UnixNano()
113 return m.rnibDataService.SaveE2TInstance(e2tInstance)
116 func (m E2TShutdownManager) isE2tInstanceAlreadyBeingDeleted(e2tInstance *entities.E2TInstance) bool {
117 delta := time.Now().UnixNano() - e2tInstance.DeletionTimestamp
118 timestampNanosec := int64(time.Duration(m.config.E2TInstanceDeletionTimeoutMs) * time.Millisecond)
120 return e2tInstance.State == entities.ToBeDeleted && delta <= timestampNanosec