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Implement remaining View Get* methods.

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This commit is contained in:
Julius Volz 2013-03-19 14:34:19 +01:00 committed by Matt T. Proud
parent 1f42364733
commit bdb067b47f
2 changed files with 34 additions and 6 deletions
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2
storage/metric/interface.go
View File

@ -70,7 +70,7 @@ type StalenessPolicy struct {
// preloading operation.
type View interface {
GetValueAtTime(model.Fingerprint, time.Time) []model.SamplePair
GetBoundaryValues(model.Fingerprint, model.Interval) []model.SamplePair
GetBoundaryValues(model.Fingerprint, model.Interval) (first []model.SamplePair, second []model.SamplePair)
GetRangeValues(model.Fingerprint, model.Interval) []model.SamplePair
// Destroy this view.

38
storage/metric/view.go
View File

@ -125,7 +125,7 @@ func (v view) Close() {
v.fingerprintToSeries = make(map[model.Fingerprint]viewStream)
}
func (v view) GetValueAtTime(f model.Fingerprint, t time.Time) (s []model.SamplePair) {
func (v view) GetValueAtTime(f model.Fingerprint, t time.Time) (samples []model.SamplePair) {
series, ok := v.fingerprintToSeries[f]
if !ok {
return
@ -150,13 +150,13 @@ func (v view) GetValueAtTime(f model.Fingerprint, t time.Time) (s []model.Sample
return
}
s = append(s, model.SamplePair{
samples = append(samples, model.SamplePair{
Timestamp: time.Time(iterator.Key().(skipListTime)),
Value: iterator.Value().(value).get(),
})
if iterator.Previous() {
s = append(s, model.SamplePair{
samples = append(samples, model.SamplePair{
Timestamp: time.Time(iterator.Key().(skipListTime)),
Value: iterator.Value().(value).get(),
})
@ -165,11 +165,39 @@ func (v view) GetValueAtTime(f model.Fingerprint, t time.Time) (s []model.Sample
return
}
func (v view) GetBoundaryValues(f model.Fingerprint, i model.Interval) (s []model.SamplePair) {
func (v view) GetBoundaryValues(f model.Fingerprint, i model.Interval) (first []model.SamplePair, second []model.SamplePair) {
first = v.GetValueAtTime(f, i.OldestInclusive)
second = v.GetValueAtTime(f, i.NewestInclusive)
return
}
func (v view) GetRangeValues(f model.Fingerprint, i model.Interval) (s []model.SamplePair) {
func (v view) GetRangeValues(f model.Fingerprint, i model.Interval) (samples []model.SamplePair) {
series, ok := v.fingerprintToSeries[f]
if !ok {
return
}
iterator := series.values.Seek(skipListTime(i.NewestInclusive))
if iterator == nil {
return
}
for {
timestamp := time.Time(iterator.Key().(skipListTime))
if timestamp.Before(i.OldestInclusive) {
break
}
samples = append(samples, model.SamplePair{
Value: iterator.Value().(value).get(),
Timestamp: timestamp,
})
if !iterator.Next() {
break
}
}
return
}