65 lines
1.8 KiB
Go
65 lines
1.8 KiB
Go
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package ast
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//////////
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// TEMPORARY CRAP FILE IN LIEU OF MISSING FUNCTIONALITY IN STORAGE LAYER
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//
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// REMOVE!
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import (
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"github.com/matttproud/prometheus/model"
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"github.com/matttproud/prometheus/storage/metric"
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"time"
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)
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// TODO ask matt about using pointers in nested metric structs
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// TODO move this somewhere proper
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var stalenessPolicy = metric.StalenessPolicy{
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DeltaAllowance: time.Duration(300) * time.Second,
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}
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// TODO remove PersistenceBridge temporary helper.
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type PersistenceBridge struct {
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persistence metric.MetricPersistence
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}
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// AST-global persistence to use.
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var persistence *PersistenceBridge = nil
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func (p *PersistenceBridge) GetValueAtTime(labels model.LabelSet, timestamp *time.Time, stalenessPolicy *metric.StalenessPolicy) ([]*model.Sample, error) {
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fingerprints, err := p.persistence.GetFingerprintsForLabelSet(&labels)
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if err != nil {
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return nil, err
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}
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samples := []*model.Sample{}
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for _, fingerprint := range fingerprints {
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metric, err := p.persistence.GetMetricForFingerprint(fingerprint)
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if err != nil {
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return nil, err
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}
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sample, err := p.persistence.GetValueAtTime(metric, timestamp, stalenessPolicy)
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if err != nil {
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return nil, err
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}
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if sample == nil {
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continue
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}
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samples = append(samples, sample)
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}
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return samples, nil
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}
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func (p *PersistenceBridge) GetBoundaryValues(labels model.LabelSet, interval *model.Interval, stalenessPolicy *metric.StalenessPolicy) ([]*model.SampleSet, error) {
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return []*model.SampleSet{}, nil // TODO real values
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}
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func (p *PersistenceBridge) GetRangeValues(labels model.LabelSet, interval *model.Interval, stalenessPolicy *metric.StalenessPolicy) ([]*model.SampleSet, error) {
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return []*model.SampleSet{}, nil // TODO real values
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}
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func SetPersistence(p metric.MetricPersistence) {
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persistence = &PersistenceBridge{
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persistence: p,
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}
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}
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