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Merge pull request #76 from prometheus/refactor/storage/simplifications

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Interface simplification.
This commit is contained in:
juliusv 2013-02-14 08:45:12 -08:00
parent ddb82a6e5d efbe0e8a12
commit ae01bce5f1
4 changed files with 20 additions and 19 deletions
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20
rules/ast/persistence_adapter.go
View file

@ -30,20 +30,20 @@ type PersistenceAdapter struct {
// AST-global persistence to use.
var persistenceAdapter *PersistenceAdapter = nil
func (p *PersistenceAdapter) getMetricsWithLabels(labels model.LabelSet) ([]*model.Metric, error) {
func (p *PersistenceAdapter) getMetricsWithLabels(labels model.LabelSet) (metrics []model.Metric, err error) {
fingerprints, err := p.persistence.GetFingerprintsForLabelSet(labels)
if err != nil {
return nil, err
return
}
metrics := []*model.Metric{}
for _, fingerprint := range fingerprints {
metric, err := p.persistence.GetMetricForFingerprint(fingerprint)
if err != nil {
return nil, err
return metrics, err
}
metrics = append(metrics, metric)
}
return metrics, nil
return
}
func (p *PersistenceAdapter) GetValueAtTime(labels model.LabelSet, timestamp *time.Time) ([]*model.Sample, error) {
@ -53,7 +53,7 @@ func (p *PersistenceAdapter) GetValueAtTime(labels model.LabelSet, timestamp *ti
}
samples := []*model.Sample{}
for _, metric := range metrics {
sample, err := p.persistence.GetValueAtTime(*metric, *timestamp, *p.stalenessPolicy)
sample, err := p.persistence.GetValueAtTime(metric, *timestamp, *p.stalenessPolicy)
if err != nil {
return nil, err
}
@ -74,7 +74,7 @@ func (p *PersistenceAdapter) GetBoundaryValues(labels model.LabelSet, interval *
sampleSets := []*model.SampleSet{}
for _, metric := range metrics {
// TODO: change to GetBoundaryValues() once it has the right return type.
sampleSet, err := p.persistence.GetRangeValues(*metric, *interval, *p.stalenessPolicy)
sampleSet, err := p.persistence.GetRangeValues(metric, *interval, *p.stalenessPolicy)
if err != nil {
return nil, err
}
@ -83,7 +83,7 @@ func (p *PersistenceAdapter) GetBoundaryValues(labels model.LabelSet, interval *
}
// TODO remove when persistence return value is fixed.
sampleSet.Metric = *metric
sampleSet.Metric = metric
sampleSets = append(sampleSets, sampleSet)
}
return sampleSets, nil
@ -97,7 +97,7 @@ func (p *PersistenceAdapter) GetRangeValues(labels model.LabelSet, interval *mod
sampleSets := []*model.SampleSet{}
for _, metric := range metrics {
sampleSet, err := p.persistence.GetRangeValues(*metric, *interval, *p.stalenessPolicy)
sampleSet, err := p.persistence.GetRangeValues(metric, *interval, *p.stalenessPolicy)
if err != nil {
return nil, err
}
@ -106,7 +106,7 @@ func (p *PersistenceAdapter) GetRangeValues(labels model.LabelSet, interval *mod
}
// TODO remove when persistence return value is fixed.
sampleSet.Metric = *metric
sampleSet.Metric = metric
sampleSets = append(sampleSets, sampleSet)
}
return sampleSets, nil

2
storage/metric/interface.go
View file

@ -40,7 +40,7 @@ type MetricPersistence interface {
// name.
GetFingerprintsForLabelName(model.LabelName) ([]model.Fingerprint, error)
GetMetricForFingerprint(model.Fingerprint) (*model.Metric, error)
GetMetricForFingerprint(model.Fingerprint) (model.Metric, error)
GetValueAtTime(model.Metric, time.Time, StalenessPolicy) (*model.Sample, error)
GetBoundaryValues(model.Metric, model.Interval, StalenessPolicy) (*model.Sample, *model.Sample, error)

10
storage/metric/leveldb/leveldb_test.go
View file

@ -892,11 +892,11 @@ func TestGetMetricForFingerprint(t *testing.T) {
t.Error(e)
}
if len(*v) != 1 {
if len(v) != 1 {
t.Errorf("Expected one-dimensional metric.")
}
if (*v)["request_type"] != "your_mom" {
if v["request_type"] != "your_mom" {
t.Errorf("Expected metric to match.")
}
@ -918,15 +918,15 @@ func TestGetMetricForFingerprint(t *testing.T) {
t.Error(e)
}
if len(*v) != 2 {
if len(v) != 2 {
t.Errorf("Expected one-dimensional metric.")
}
if (*v)["request_type"] != "your_dad" {
if v["request_type"] != "your_dad" {
t.Errorf("Expected metric to match.")
}
if (*v)["one-off"] != "value" {
if v["one-off"] != "value" {
t.Errorf("Expected metric to match.")
}
}

7
storage/metric/leveldb/reading.go
View file

@ -259,7 +259,7 @@ func (l *LevelDBMetricPersistence) GetFingerprintsForLabelName(labelName model.L
return
}
func (l *LevelDBMetricPersistence) GetMetricForFingerprint(f model.Fingerprint) (m *model.Metric, err error) {
func (l *LevelDBMetricPersistence) GetMetricForFingerprint(f model.Fingerprint) (m model.Metric, err error) {
begin := time.Now()
defer func() {
@ -279,9 +279,10 @@ func (l *LevelDBMetricPersistence) GetMetricForFingerprint(f model.Fingerprint)
return
}
m = &model.Metric{}
m = model.Metric{}
for _, v := range unmarshaled.LabelPair {
(*m)[model.LabelName(*v.Name)] = model.LabelValue(*v.Value)
m[model.LabelName(*v.Name)] = model.LabelValue(*v.Value)
}
return