bergquist
53 lines
966 B
Go
53 lines
966 B
Go
package conditions
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import "github.com/grafana/grafana/pkg/tsdb"
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type QueryReducer interface {
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Reduce(timeSeries *tsdb.TimeSeries) float64
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}
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type SimpleReducer struct {
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Type string
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}
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func (s *SimpleReducer) Reduce(series *tsdb.TimeSeries) float64 {
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var value float64 = 0
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switch s.Type {
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case "avg":
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for _, point := range series.Points {
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value += point[0]
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}
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value = value / float64(len(series.Points))
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case "sum":
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for _, point := range series.Points {
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value += point[0]
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}
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case "min":
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for i, point := range series.Points {
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if i == 0 {
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value = point[0]
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}
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if value > point[0] {
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value = point[0]
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}
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}
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case "max":
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for _, point := range series.Points {
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if value < point[0] {
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value = point[0]
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}
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}
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case "mean":
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meanPosition := int64(len(series.Points) / 2)
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value = series.Points[meanPosition][0]
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}
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return value
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}
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func NewSimpleReducer(typ string) *SimpleReducer {
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return &SimpleReducer{Type: typ}
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}
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