41 lines
802 B
Go
41 lines
802 B
Go
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package tsdbutil
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import (
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"github.com/prometheus/tsdb/chunkenc"
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"github.com/prometheus/tsdb/chunks"
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)
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type Sample interface {
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T() int64
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V() float64
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}
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func ChunkFromSamples(s []Sample) chunks.Meta {
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mint, maxt := int64(0), int64(0)
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if len(s) > 0 {
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mint, maxt = s[0].T(), s[len(s)-1].T()
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}
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c := chunkenc.NewXORChunk()
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ca, _ := c.Appender()
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for _, s := range s {
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ca.Append(s.T(), s.V())
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}
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return chunks.Meta{
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MinTime: mint,
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MaxTime: maxt,
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Chunk: c,
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}
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}
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// PopulatedChunk creates a chunk populated with samples every second starting at minTime
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func PopulatedChunk(numSamples int, minTime int64) chunks.Meta {
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samples := make([]Sample, numSamples)
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for i := 0; i < numSamples; i++ {
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samples[i] = sample{minTime + int64(i*1000), 1.0}
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}
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return ChunkFromSamples(samples)
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}
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