72 lines
2.4 KiB
Go
72 lines
2.4 KiB
Go
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package postprocess
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import (
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v3 "go.signoz.io/signoz/pkg/query-service/model/v3"
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)
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// applyReduceTo applies the reduceTo operator to each series
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// and returns a new series with the reduced value
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// reduceTo can be one of the following:
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// - last
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// - sum
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// - avg
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// - min
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// - max
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func applyReduceTo(result []*v3.Result, queryRangeParams *v3.QueryRangeParamsV3) {
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for _, result := range result {
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builderQueries := queryRangeParams.CompositeQuery.BuilderQueries
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// reduceTo is only applicable for metrics data source
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// and for table and value panels
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if builderQueries[result.QueryName] != nil && (builderQueries[result.QueryName].DataSource == v3.DataSourceMetrics &&
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(queryRangeParams.CompositeQuery.PanelType == v3.PanelTypeTable || queryRangeParams.CompositeQuery.PanelType == v3.PanelTypeValue)) {
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reduceTo := builderQueries[result.QueryName].ReduceTo
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switch reduceTo {
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case v3.ReduceToOperatorLast:
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for i := 0; i < len(result.Series); i++ {
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if len(result.Series[i].Points) > 0 {
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result.Series[i].Points = []v3.Point{result.Series[i].Points[len(result.Series[i].Points)-1]}
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}
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}
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case v3.ReduceToOperatorSum:
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for i := 0; i < len(result.Series); i++ {
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var sum float64
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for j := 0; j < len(result.Series[i].Points); j++ {
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sum += result.Series[i].Points[j].Value
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}
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result.Series[i].Points = []v3.Point{{Value: sum}}
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}
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case v3.ReduceToOperatorAvg:
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for i := 0; i < len(result.Series); i++ {
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var sum float64
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for j := 0; j < len(result.Series[i].Points); j++ {
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sum += result.Series[i].Points[j].Value
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}
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result.Series[i].Points = []v3.Point{{Value: sum / float64(len(result.Series[i].Points))}}
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}
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case v3.ReduceToOperatorMin:
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for i := 0; i < len(result.Series); i++ {
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var min float64
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for j := 0; j < len(result.Series[i].Points); j++ {
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if j == 0 || result.Series[i].Points[j].Value < min {
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min = result.Series[i].Points[j].Value
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}
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}
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result.Series[i].Points = []v3.Point{{Value: min}}
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}
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case v3.ReduceToOperatorMax:
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for i := 0; i < len(result.Series); i++ {
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var max float64
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for j := 0; j < len(result.Series[i].Points); j++ {
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if j == 0 || result.Series[i].Points[j].Value > max {
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max = result.Series[i].Points[j].Value
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}
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}
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result.Series[i].Points = []v3.Point{{Value: max}}
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}
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}
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}
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}
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}
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