func whisperCreate(path string) ([]*whisper.TimeSeriesPoint, error) {
ts := make([]*whisper.TimeSeriesPoint, 30)
os.Remove(path) // Don't care if it fails
retentions, err := whisper.ParseRetentionDefs("1m:30m")
if err != nil {
return ts, err
}
wsp, err := whisper.Create(path, retentions, whisper.Sum, 0.5)
if err != nil {
return ts, err
}
defer wsp.Close()
rand.Seed(time.Now().Unix())
for i, _ := range ts {
dur := fmt.Sprintf("-%dm", 29-i)
tdur, _ := time.ParseDuration(dur)
point := new(whisper.TimeSeriesPoint)
point.Value = float64(rand.Intn(100))
point.Time = int(time.Now().Add(tdur).Unix())
ts[i] = point
//log.Printf("WhisperCreate(): point -%dm is %.2f\n", 29-i, point.Value)
}
wsp.UpdateMany(ts)
return ts, nil
}
func whisperCreateData(path string, ts []*whisper.TimeSeriesPoint) error {
os.Remove(path) // Don't care if it fails
retentions, err := whisper.ParseRetentionDefs("1m:30m")
if err != nil {
return err
}
wsp, err := whisper.Create(path, retentions, whisper.Sum, 0.5)
if err != nil {
return err
}
defer wsp.Close()
// Iterate through the slice so we can support null values
for _, point := range ts {
if math.IsNaN(point.Value) {
continue
}
err = wsp.Update(point.Value, point.Time)
if err != nil {
return err
}
}
return nil
}
func whisperCreateNulls(path string) ([]*whisper.TimeSeriesPoint, error) {
ts := make([]*whisper.TimeSeriesPoint, 30)
os.Remove(path) // Don't care if it fails
retentions, err := whisper.ParseRetentionDefs("1m:30m")
if err != nil {
return ts, err
}
wsp, err := whisper.Create(path, retentions, whisper.Sum, 0.5)
if err != nil {
return ts, err
}
defer wsp.Close()
for i, _ := range ts {
tdur, _ := time.ParseDuration(fmt.Sprintf("-%dm", 29-i))
j := rand.Intn(100)
point := new(whisper.TimeSeriesPoint)
if j < 65 {
point.Value = math.NaN()
point.Time = 0
} else {
point.Value = float64(j)
point.Time = int(time.Now().Add(tdur).Unix())
}
ts[i] = point
//log.Printf("WhisperNulls(): point -%dm is %.2f\n", 29-i, point.Value)
if !math.IsNaN(point.Value) {
err = wsp.Update(point.Value, point.Time)
if err != nil {
return ts, err
}
}
}
return ts, nil
}