func (l *LevelDBMetricPersistence) GetFingerprintsForLabelName(labelName *model.LabelName) (fps []*model.Fingerprint, err error) {
begin := time.Now()
defer func() {
duration := time.Now().Sub(begin)
recordOutcome(storageOperations, storageLatency, duration, err, map[string]string{operation: getFingerprintsForLabelName, result: success}, map[string]string{operation: getFingerprintsForLabelName, result: failure})
}()
fps = make([]*model.Fingerprint, 0, 0)
raw, err := l.labelNameToFingerprints.Get(coding.NewProtocolBufferEncoder(model.LabelNameToDTO(labelName)))
if err != nil {
return
}
unmarshaled := &dto.FingerprintCollection{}
err = proto.Unmarshal(raw, unmarshaled)
if err != nil {
return
}
for _, m := range unmarshaled.Member {
fp := model.Fingerprint(*m.Signature)
fps = append(fps, &fp)
}
return
}
func (l *LevelDBMetricPersistence) GetFingerprintsForLabelSet(labelSet *model.LabelSet) (fps []*model.Fingerprint, err error) {
begin := time.Now()
defer func() {
duration := time.Now().Sub(begin)
recordOutcome(storageOperations, storageLatency, duration, err, map[string]string{operation: getFingerprintsForLabelSet, result: success}, map[string]string{operation: getFingerprintsForLabelSet, result: failure})
}()
sets := []utility.Set{}
for _, labelSetDTO := range model.LabelSetToDTOs(labelSet) {
f, err := l.labelSetToFingerprints.Get(coding.NewProtocolBufferEncoder(labelSetDTO))
if err != nil {
return fps, err
}
unmarshaled := &dto.FingerprintCollection{}
err = proto.Unmarshal(f, unmarshaled)
if err != nil {
return fps, err
}
set := utility.Set{}
for _, m := range unmarshaled.Member {
fp := model.Fingerprint(*m.Signature)
set.Add(fp)
}
sets = append(sets, set)
}
numberOfSets := len(sets)
if numberOfSets == 0 {
return
}
base := sets[0]
for i := 1; i < numberOfSets; i++ {
base = base.Intersection(sets[i])
}
fps = []*model.Fingerprint{}
for _, e := range base.Elements() {
fingerprint := e.(model.Fingerprint)
fps = append(fps, &fingerprint)
}
return
}