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Interface simplifications: GetValueAtTime().

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Pointer arguments to copies.
This commit is contained in:
Matt T. Proud 2013-02-13 21:05:01 -08:00
parent 1e2d6c7418
commit 56f069b3ec
5 changed files with 20 additions and 20 deletions
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4
rules/ast/persistence_adapter.go
View file

@ -37,7 +37,7 @@ func (p *PersistenceAdapter) getMetricsWithLabels(labels model.LabelSet) ([]*mod
} }
metrics := []*model.Metric{} metrics := []*model.Metric{}
for _, fingerprint := range fingerprints { for _, fingerprint := range fingerprints {
metric, err := p.persistence.GetMetricForFingerprint(fingerprint) metric, err := p.persistence.GetMetricForFingerprint(*fingerprint)
if err != nil { if err != nil {
return nil, err return nil, err
} }
@ -53,7 +53,7 @@ func (p *PersistenceAdapter) GetValueAtTime(labels model.LabelSet, timestamp *ti
} }
samples := []*model.Sample{} samples := []*model.Sample{}
for _, metric := range metrics { 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 { if err != nil {
return nil, err return nil, err
} }

10
storage/metric/interface.go
View file

@ -30,19 +30,19 @@ type MetricPersistence interface {
Close() error Close() error
// Record a new sample in the storage layer. // Record a new sample in the storage layer.
AppendSample(sample model.Sample) error AppendSample(model.Sample) error
// Get all of the metric fingerprints that are associated with the provided // Get all of the metric fingerprints that are associated with the provided
// label set. // label set.
GetFingerprintsForLabelSet(labelSet model.LabelSet) ([]*model.Fingerprint, error) GetFingerprintsForLabelSet(model.LabelSet) ([]*model.Fingerprint, error)
// Get all of the metric fingerprints that are associated for a given label // Get all of the metric fingerprints that are associated for a given label
// name. // name.
GetFingerprintsForLabelName(labelName model.LabelName) ([]*model.Fingerprint, error) GetFingerprintsForLabelName(model.LabelName) ([]*model.Fingerprint, error)
GetMetricForFingerprint(f *model.Fingerprint) (*model.Metric, error) GetMetricForFingerprint(model.Fingerprint) (*model.Metric, error)
GetValueAtTime(*model.Metric, *time.Time, *StalenessPolicy) (*model.Sample, error) GetValueAtTime(model.Metric, time.Time, StalenessPolicy) (*model.Sample, error)
GetBoundaryValues(*model.Metric, *model.Interval, *StalenessPolicy) (*model.Sample, *model.Sample, error) GetBoundaryValues(*model.Metric, *model.Interval, *StalenessPolicy) (*model.Sample, *model.Sample, error)
GetRangeValues(*model.Metric, *model.Interval, *StalenessPolicy) (*model.SampleSet, error) GetRangeValues(*model.Metric, *model.Interval, *StalenessPolicy) (*model.SampleSet, error)

4
storage/metric/leveldb/leveldb_test.go
View file

@ -887,7 +887,7 @@ func TestGetMetricForFingerprint(t *testing.T) {
t.Errorf("Expected one element.") t.Errorf("Expected one element.")
} }
v, e := persistence.GetMetricForFingerprint(result[0]) v, e := persistence.GetMetricForFingerprint(*result[0])
if e != nil { if e != nil {
t.Error(e) t.Error(e)
} }
@ -912,7 +912,7 @@ func TestGetMetricForFingerprint(t *testing.T) {
t.Errorf("Expected one element.") t.Errorf("Expected one element.")
} }
v, e = persistence.GetMetricForFingerprint(result[0]) v, e = persistence.GetMetricForFingerprint(*result[0])
if e != nil { if e != nil {
t.Error(e) t.Error(e)

20
storage/metric/leveldb/reading.go
View file

@ -262,7 +262,7 @@ func (l *LevelDBMetricPersistence) GetFingerprintsForLabelName(labelName model.L
return 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() begin := time.Now()
defer func() { defer func() {
@ -271,7 +271,7 @@ func (l *LevelDBMetricPersistence) GetMetricForFingerprint(f *model.Fingerprint)
recordOutcome(storageOperations, storageLatency, duration, err, map[string]string{operation: getMetricForFingerprint, result: success}, map[string]string{operation: getMetricForFingerprint, result: failure}) recordOutcome(storageOperations, storageLatency, duration, err, map[string]string{operation: getMetricForFingerprint, result: success}, map[string]string{operation: getMetricForFingerprint, result: failure})
}() }()
raw, err := l.fingerprintToMetrics.Get(coding.NewProtocolBufferEncoder(model.FingerprintToDTO(f))) raw, err := l.fingerprintToMetrics.Get(coding.NewProtocolBufferEncoder(model.FingerprintToDTO(&f)))
if err != nil { if err != nil {
return return
} }
@ -300,14 +300,14 @@ func (l *LevelDBMetricPersistence) GetBoundaryValues(m *model.Metric, i *model.I
}() }()
// XXX: Maybe we will want to emit incomplete sets? // XXX: Maybe we will want to emit incomplete sets?
open, err = l.GetValueAtTime(m, &i.OldestInclusive, s) open, err = l.GetValueAtTime(*m, i.OldestInclusive, *s)
if err != nil { if err != nil {
return return
} else if open == nil { } else if open == nil {
return return
} }
end, err = l.GetValueAtTime(m, &i.NewestInclusive, s) end, err = l.GetValueAtTime(*m, i.NewestInclusive, *s)
if err != nil { if err != nil {
return return
} else if end == nil { } else if end == nil {
@ -339,7 +339,7 @@ type iterator interface {
Value() []byte Value() []byte
} }
func (l *LevelDBMetricPersistence) GetValueAtTime(m *model.Metric, t *time.Time, s *metric.StalenessPolicy) (sample *model.Sample, err error) { func (l *LevelDBMetricPersistence) GetValueAtTime(m model.Metric, t time.Time, s metric.StalenessPolicy) (sample *model.Sample, err error) {
begin := time.Now() begin := time.Now()
defer func() { defer func() {
@ -353,7 +353,7 @@ func (l *LevelDBMetricPersistence) GetValueAtTime(m *model.Metric, t *time.Time,
// Candidate for Refactoring // Candidate for Refactoring
k := &dto.SampleKey{ k := &dto.SampleKey{
Fingerprint: f, Fingerprint: f,
Timestamp: indexable.EncodeTime(*t), Timestamp: indexable.EncodeTime(t),
} }
e, err := coding.NewProtocolBufferEncoder(k).Encode() e, err := coding.NewProtocolBufferEncoder(k).Encode()
@ -473,7 +473,7 @@ func (l *LevelDBMetricPersistence) GetValueAtTime(m *model.Metric, t *time.Time,
firstTime = alternativeTime firstTime = alternativeTime
} }
firstDelta := firstTime.Sub(*t) firstDelta := firstTime.Sub(t)
if firstDelta < 0 { if firstDelta < 0 {
firstDelta *= -1 firstDelta *= -1
} }
@ -486,7 +486,7 @@ func (l *LevelDBMetricPersistence) GetValueAtTime(m *model.Metric, t *time.Time,
return return
} }
sample = model.SampleFromDTO(m, t, firstValue) sample = model.SampleFromDTO(&m, &t, firstValue)
if firstDelta == time.Duration(0) { if firstDelta == time.Duration(0) {
return return
@ -542,13 +542,13 @@ func (l *LevelDBMetricPersistence) GetValueAtTime(m *model.Metric, t *time.Time,
return return
} }
interpolated := interpolate(firstTime, secondTime, *firstValue.Value, *secondValue.Value, *t) interpolated := interpolate(firstTime, secondTime, *firstValue.Value, *secondValue.Value, t)
sampleValue := &dto.SampleValue{ sampleValue := &dto.SampleValue{
Value: &interpolated, Value: &interpolated,
} }
sample = model.SampleFromDTO(m, t, sampleValue) sample = model.SampleFromDTO(&m, &t, sampleValue)
return return
} }

2
storage/metric/leveldb/rule_integration_test.go
View file

@ -592,7 +592,7 @@ var testGetValueAtTime = func(t test.Tester) {
DeltaAllowance: input.staleness, DeltaAllowance: input.staleness,
} }
actual, err := persistence.GetValueAtTime(&m, &time, &p) actual, err := persistence.GetValueAtTime(m, time, p)
if err != nil { if err != nil {
t.Errorf("%d.%d(%s). Could not query for value: %q\n", i, j, behavior.name, err) t.Errorf("%d.%d(%s). Could not query for value: %q\n", i, j, behavior.name, err)
} }