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.
21 "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/common"
22 "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
23 "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/reader"
30 type RNibDataService interface {
31 GetNodeb(ranName string) (*entities.NodebInfo, error)
32 GetListNodebIds() ([]*entities.NbIdentity, error)
36 type rNibDataService struct {
38 rnibReaderProvider func() reader.RNibReader
40 retryInterval time.Duration
43 func NewRnibDataService(logger *logger.Logger, config *configuration.Configuration, rnibReaderProvider func() reader.RNibReader) *rNibDataService {
44 return &rNibDataService{
46 rnibReaderProvider: rnibReaderProvider,
47 maxAttempts: config.Rnib.MaxRnibConnectionAttempts,
48 retryInterval: time.Duration(config.Rnib.RnibRetryIntervalMs) * time.Millisecond,
52 func (w *rNibDataService) GetNodeb(ranName string) (*entities.NodebInfo, error) {
53 w.logger.Infof("#RnibDataService.GetNodeb - ranName: %s", ranName)
55 var nodeb *entities.NodebInfo = nil
57 err := w.retry("GetNodeb", func() (err error) {
58 nodeb, err = w.rnibReaderProvider().GetNodeb(ranName)
65 func (w *rNibDataService) GetListNodebIds() ([]*entities.NbIdentity, error) {
66 w.logger.Infof("#RnibDataService.GetListNodebIds")
68 var nodeIds []*entities.NbIdentity = nil
70 err := w.retry("GetListNodebIds", func() (err error) {
71 nodeIds, err = w.rnibReaderProvider().GetListNodebIds()
78 func (w *rNibDataService) PingRnib() bool {
79 err := w.retry("GetListNodebIds", func() (err error) {
80 _, err = w.rnibReaderProvider().GetListNodebIds()
84 return !isRnibConnectionError(err)
87 func (w *rNibDataService) retry(rnibFunc string, f func() error) (err error) {
88 attempts := w.maxAttempts
95 if !isRnibConnectionError(err) {
99 w.logger.Errorf("#RnibDataService.retry - after %d attempts of %s, last error: %s", attempts, rnibFunc, err)
102 time.Sleep(w.retryInterval)
104 w.logger.Infof("#RnibDataService.retry - retrying %d %s after error: %s", i, rnibFunc, err)
108 func isRnibConnectionError(err error) bool {
109 internalErr, ok := err.(*common.InternalError)
113 _, ok = internalErr.Err.(*net.OpError)