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AST persistence adapter simplifications after storage changes.

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Julius Volz 2013-03-18 17:12:51 +01:00 committed by Matt T. Proud
parent e50de005f9
commit 2f814d0e6d
1 changed files with 17 additions and 42 deletions
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59
rules/ast/persistence_adapter.go
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@ -30,57 +30,36 @@ type PersistenceAdapter struct {
// AST-global persistence to use.
var persistenceAdapter *PersistenceAdapter = nil
func (p *PersistenceAdapter) getMetricsWithLabels(labels model.LabelSet) (fingerprintToMetric map[model.Fingerprint]model.Metric, err error) {
func (p *PersistenceAdapter) GetValueAtTime(labels model.LabelSet, timestamp *time.Time) (samples []*model.Sample, err error) {
fingerprints, err := p.persistence.GetFingerprintsForLabelSet(labels)
if err != nil {
return
}
fingerprintToMetric = make(map[model.Fingerprint]model.Metric)
for _, fingerprint := range fingerprints {
var metric *model.Metric // Don't shadow err.
metric, err = p.persistence.GetMetricForFingerprint(fingerprint)
var sample *model.Sample // Don't shadow err.
sample, err = p.persistence.GetValueAtTime(fingerprint, *timestamp, *p.stalenessPolicy)
if err != nil {
return
}
if metric == nil {
continue
}
fingerprintToMetric[fingerprint] = *metric
}
return
}
func (p *PersistenceAdapter) GetValueAtTime(labels model.LabelSet, timestamp *time.Time) ([]*model.Sample, error) {
metrics, err := p.getMetricsWithLabels(labels)
if err != nil {
return nil, err
}
samples := []*model.Sample{}
for fingerprint := range metrics {
sample, err := p.persistence.GetValueAtTime(fingerprint, *timestamp, *p.stalenessPolicy)
if err != nil {
return nil, err
}
if sample == nil {
continue
}
samples = append(samples, sample)
}
return samples, nil
return
}
func (p *PersistenceAdapter) GetBoundaryValues(labels model.LabelSet, interval *model.Interval) ([]*model.SampleSet, error) {
metrics, err := p.getMetricsWithLabels(labels)
func (p *PersistenceAdapter) GetBoundaryValues(labels model.LabelSet, interval *model.Interval) (sampleSets []*model.SampleSet, err error) {
fingerprints, err := p.persistence.GetFingerprintsForLabelSet(labels)
if err != nil {
return nil, err
return
}
sampleSets := []*model.SampleSet{}
for fingerprint, metric := range metrics {
for _, fingerprint := range fingerprints {
var sampleSet *model.SampleSet // Don't shadow err.
// TODO: change to GetBoundaryValues() once it has the right return type.
sampleSet, err := p.persistence.GetRangeValues(fingerprint, *interval)
sampleSet, err = p.persistence.GetRangeValues(fingerprint, *interval)
if err != nil {
return nil, err
}
@ -88,22 +67,20 @@ func (p *PersistenceAdapter) GetBoundaryValues(labels model.LabelSet, interval *
continue
}
// TODO remove when persistence return value is fixed.
sampleSet.Metric = metric
sampleSets = append(sampleSets, sampleSet)
}
return sampleSets, nil
}
func (p *PersistenceAdapter) GetRangeValues(labels model.LabelSet, interval *model.Interval) ([]*model.SampleSet, error) {
metrics, err := p.getMetricsWithLabels(labels)
func (p *PersistenceAdapter) GetRangeValues(labels model.LabelSet, interval *model.Interval) (sampleSets []*model.SampleSet, err error) {
fingerprints, err := p.persistence.GetFingerprintsForLabelSet(labels)
if err != nil {
return nil, err
return
}
sampleSets := []*model.SampleSet{}
for fingerprint, metric := range metrics {
sampleSet, err := p.persistence.GetRangeValues(fingerprint, *interval)
for _, fingerprint := range fingerprints {
var sampleSet *model.SampleSet // Don't shadow err.
sampleSet, err = p.persistence.GetRangeValues(fingerprint, *interval)
if err != nil {
return nil, err
}
@ -111,8 +88,6 @@ func (p *PersistenceAdapter) GetRangeValues(labels model.LabelSet, interval *mod
continue
}
// TODO remove when persistence return value is fixed.
sampleSet.Metric = metric
sampleSets = append(sampleSets, sampleSet)
}
return sampleSets, nil