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.
17 // This source code is part of the near-RT RIC (RAN Intelligent Controller)
18 // platform project (RICP).
24 "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/common"
25 "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
26 "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/reader"
33 type RNibDataService interface {
34 GetNodeb(ranName string) (*entities.NodebInfo, error)
35 GetListNodebIds() ([]*entities.NbIdentity, error)
39 type rNibDataService struct {
41 rnibReaderProvider func() reader.RNibReader
43 retryInterval time.Duration
46 func NewRnibDataService(logger *logger.Logger, config *configuration.Configuration, rnibReaderProvider func() reader.RNibReader) *rNibDataService {
47 return &rNibDataService{
49 rnibReaderProvider: rnibReaderProvider,
50 maxAttempts: config.Rnib.MaxRnibConnectionAttempts,
51 retryInterval: time.Duration(config.Rnib.RnibRetryIntervalMs) * time.Millisecond,
55 func (w *rNibDataService) GetNodeb(ranName string) (*entities.NodebInfo, error) {
56 w.logger.Infof("#RnibDataService.GetNodeb - ranName: %s", ranName)
58 var nodeb *entities.NodebInfo = nil
60 err := w.retry("GetNodeb", func() (err error) {
61 nodeb, err = w.rnibReaderProvider().GetNodeb(ranName)
68 func (w *rNibDataService) GetListNodebIds() ([]*entities.NbIdentity, error) {
69 w.logger.Infof("#RnibDataService.GetListNodebIds")
71 var nodeIds []*entities.NbIdentity = nil
73 err := w.retry("GetListNodebIds", func() (err error) {
74 nodeIds, err = w.rnibReaderProvider().GetListNodebIds()
81 func (w *rNibDataService) PingRnib() bool {
82 err := w.retry("GetListNodebIds", func() (err error) {
83 _, err = w.rnibReaderProvider().GetListNodebIds()
87 return !isRnibConnectionError(err)
90 func (w *rNibDataService) retry(rnibFunc string, f func() error) (err error) {
91 attempts := w.maxAttempts
98 if !isRnibConnectionError(err) {
102 w.logger.Errorf("#RnibDataService.retry - after %d attempts of %s, last error: %s", attempts, rnibFunc, err)
105 time.Sleep(w.retryInterval)
107 w.logger.Infof("#RnibDataService.retry - retrying %d %s after error: %s", i, rnibFunc, err)
111 func isRnibConnectionError(err error) bool {
112 internalErr, ok := err.(*common.InternalError)
116 _, ok = internalErr.Err.(*net.OpError)