+//
+// 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 managers
import (
"e2mgr/configuration"
"e2mgr/logger"
- "e2mgr/rNibWriter"
- "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/common"
+ "e2mgr/services"
"gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
- "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/reader"
)
+type IRanReconnectionManager interface {
+ ReconnectRan(inventoryName string) error
+}
+
type RanReconnectionManager struct {
- logger *logger.Logger
- config *configuration.Configuration
- rnibReaderProvider func() reader.RNibReader
- rnibWriterProvider func() rNibWriter.RNibWriter
- ranSetupManager *RanSetupManager
+ logger *logger.Logger
+ config *configuration.Configuration
+ rnibDataService services.RNibDataService
+ ranSetupManager *RanSetupManager
+ e2tAssociationManager *E2TAssociationManager
}
-func NewRanReconnectionManager(logger *logger.Logger, config *configuration.Configuration, rnibReaderProvider func() reader.RNibReader, rnibWriterProvider func() rNibWriter.RNibWriter, ranSetupManager *RanSetupManager) *RanReconnectionManager {
+func NewRanReconnectionManager(logger *logger.Logger, config *configuration.Configuration, rnibDataService services.RNibDataService, ranSetupManager *RanSetupManager, e2tAssociationManager *E2TAssociationManager) *RanReconnectionManager {
return &RanReconnectionManager{
- logger: logger,
- config: config,
- rnibReaderProvider: rnibReaderProvider,
- rnibWriterProvider: rnibWriterProvider,
- ranSetupManager: ranSetupManager,
+ logger: logger,
+ config: config,
+ rnibDataService: rnibDataService,
+ ranSetupManager: ranSetupManager,
+ e2tAssociationManager: e2tAssociationManager,
}
}
+func (m *RanReconnectionManager) isRanExceededConnectionAttempts(nodebInfo *entities.NodebInfo) bool {
+ return int(nodebInfo.GetConnectionAttempts()) >= m.config.MaxConnectionAttempts
+}
+
func (m *RanReconnectionManager) ReconnectRan(inventoryName string) error {
- nodebInfo, rnibErr := m.rnibReaderProvider().GetNodeb(inventoryName)
+ nodebInfo, rnibErr := m.rnibDataService.GetNodeb(inventoryName)
if rnibErr != nil {
- m.logger.Errorf("#ReconnectRan - RAN name: %s - Failed fetching RAN from rNib. Error: %v", inventoryName, rnibErr)
+ m.logger.Errorf("#RanReconnectionManager.ReconnectRan - RAN name: %s - Failed fetching RAN from rNib. Error: %v", inventoryName, rnibErr)
return rnibErr
}
+ m.logger.Infof("#RanReconnectionManager.ReconnectRan - RAN name: %s - RAN's connection status: %s, RAN's connection attempts: %d", nodebInfo.RanName, nodebInfo.ConnectionStatus, nodebInfo.ConnectionAttempts)
+
if !m.canReconnectRan(nodebInfo) {
- m.logger.Warnf("#ReconnectRan - RAN name: %s - Cannot reconnect RAN", inventoryName)
- return m.setConnectionStatusOfUnconnectableRan(nodebInfo)
+ e2tAddress := nodebInfo.AssociatedE2TInstanceAddress
+ err := m.updateUnconnectableRan(nodebInfo)
+
+ if err != nil {
+ return err
+ }
+
+ if m.isRanExceededConnectionAttempts(nodebInfo) {
+ return m.e2tAssociationManager.DissociateRan(e2tAddress, nodebInfo.RanName)
+ }
+
+ return nil
}
- err := m.ranSetupManager.ExecuteSetup(nodebInfo)
+ err := m.ranSetupManager.ExecuteSetup(nodebInfo, entities.ConnectionStatus_CONNECTING)
if err != nil {
- m.logger.Errorf("#ReconnectRan - RAN name: %s - Failed executing setup. Error: %v", inventoryName, err)
+ m.logger.Errorf("#RanReconnectionManager.ReconnectRan - RAN name: %s - Failed executing setup. Error: %v", inventoryName, err)
return err
}
- m.logger.Infof("#ReconnectRan - RAN name: %s - Successfully done executing setup", inventoryName)
return nil
}
int(nodebInfo.GetConnectionAttempts()) < m.config.MaxConnectionAttempts
}
-func (m *RanReconnectionManager) updateNodebInfoStatus(nodebInfo *entities.NodebInfo, connectionStatus entities.ConnectionStatus) common.IRNibError {
+func (m *RanReconnectionManager) updateNodebInfo(nodebInfo *entities.NodebInfo, connectionStatus entities.ConnectionStatus) error {
+
nodebInfo.ConnectionStatus = connectionStatus;
- err := m.rnibWriterProvider().UpdateNodebInfo(nodebInfo)
+
+ err := m.rnibDataService.UpdateNodebInfo(nodebInfo)
if err != nil {
- m.logger.Errorf("#updateNodebInfoStatus - RAN name: %s - Failed updating RAN's connection status to %s in rNib. Error: %v", nodebInfo.RanName, connectionStatus, err)
+ m.logger.Errorf("#RanReconnectionManager.updateNodebInfo - RAN name: %s - Failed updating RAN's connection status to %s in rNib. Error: %v", nodebInfo.RanName, connectionStatus, err)
return err
}
- m.logger.Infof("#updateNodebInfoStatus - RAN name: %s - Successfully updated RAN's connection status to %s in rNib", nodebInfo.RanName, connectionStatus)
+ m.logger.Infof("#RanReconnectionManager.updateNodebInfo - RAN name: %s - Successfully updated rNib. RAN's current connection status: %s", nodebInfo.RanName, nodebInfo.ConnectionStatus)
return nil
}
-func (m *RanReconnectionManager) setConnectionStatusOfUnconnectableRan(nodebInfo *entities.NodebInfo) common.IRNibError {
+func (m *RanReconnectionManager) updateUnconnectableRan(nodebInfo *entities.NodebInfo) error {
connectionStatus := nodebInfo.GetConnectionStatus()
- m.logger.Warnf("#setConnectionStatusOfUnconnectableRan - RAN name: %s, RAN's connection status: %s, RAN's connection attempts: %d", nodebInfo.RanName, nodebInfo.ConnectionStatus, nodebInfo.ConnectionAttempts)
+
+ if connectionStatus == entities.ConnectionStatus_SHUT_DOWN {
+ m.logger.Warnf("#RanReconnectionManager.updateUnconnectableRan - RAN name: %s - Cannot reconnect RAN. Reason: connection status is SHUT_DOWN", nodebInfo.RanName)
+ return nil
+ }
if connectionStatus == entities.ConnectionStatus_SHUTTING_DOWN {
- return m.updateNodebInfoStatus(nodebInfo, entities.ConnectionStatus_SHUT_DOWN)
+ m.logger.Warnf("#RanReconnectionManager.updateUnconnectableRan - RAN name: %s - Cannot reconnect RAN. Reason: connection status is SHUTTING_DOWN", nodebInfo.RanName)
+ return m.updateNodebInfo(nodebInfo, entities.ConnectionStatus_SHUT_DOWN)
}
- if int(nodebInfo.GetConnectionAttempts()) >= m.config.MaxConnectionAttempts {
- m.logger.Warnf("#setConnectionStatusOfUnconnectableRan - RAN name: %s - RAN's connection attempts are greater than %d", nodebInfo.RanName, m.config.MaxConnectionAttempts)
- return m.updateNodebInfoStatus(nodebInfo, entities.ConnectionStatus_DISCONNECTED)
+ if m.isRanExceededConnectionAttempts(nodebInfo) {
+ m.logger.Warnf("#RanReconnectionManager.updateUnconnectableRan - RAN name: %s - Cannot reconnect RAN. Reason: RAN's connection attempts exceeded the limit (%d)", nodebInfo.RanName, m.config.MaxConnectionAttempts)
+ return m.updateNodebInfo(nodebInfo, entities.ConnectionStatus_DISCONNECTED)
}
return nil
Code Review / ric-plt / e2mgr.git / blobdiff