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44 lines
1.6 KiB
Go
44 lines
1.6 KiB
Go
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package index
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import (
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clientmodel "github.com/prometheus/client_golang/model"
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)
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// MetricIndexer indexes facets of a clientmodel.Metric. The interface makes no
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// assumptions about the concurrency safety of the underlying implementer.
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type MetricIndexer interface {
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// IndexMetrics adds metrics to the index.
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IndexMetrics(FingerprintMetricMapping) error
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// UnindexMetrics removes metrics from the index.
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UnindexMetrics(FingerprintMetricMapping) error
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// GetMetricForFingerprint returns the metric associated with the provided fingerprint.
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GetMetricForFingerprint(clientmodel.Fingerprint) (clientmodel.Metric, error)
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// GetFingerprintsForLabelPair returns all fingerprints for the provided label pair.
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GetFingerprintsForLabelPair(l clientmodel.LabelName, v clientmodel.LabelValue) (clientmodel.Fingerprints, error)
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// GetLabelValuesForLabelName returns all label values associated with a given label name.
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GetLabelValuesForLabelName(clientmodel.LabelName) (clientmodel.LabelValues, error)
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// HasFingerprint returns true if a metric with the given fingerprint has been indexed.
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HasFingerprint(clientmodel.Fingerprint) (bool, error)
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}
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// KeyValueStore persists key/value pairs.
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type KeyValueStore interface {
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Put(key, value encodable) error
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Get(k encodable, v decodable) (bool, error)
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Has(k encodable) (has bool, err error)
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Delete(k encodable) error
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NewBatch() Batch
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Commit(b Batch) error
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Close() error
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}
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// Batch allows KeyValueStore mutations to be pooled and committed together.
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type Batch interface {
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Put(key, value encodable)
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Delete(key encodable)
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Reset()
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}
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