30 lines
640 B
Go
30 lines
640 B
Go
package api
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import (
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"code.google.com/p/gorest"
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"github.com/matttproud/prometheus/rules"
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"github.com/matttproud/prometheus/rules/ast"
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"time"
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)
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func (serv MetricsService) Query(Expr string, Json string, Start string, End string) (result string) {
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exprNode, err := rules.LoadExprFromString(Expr)
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if err != nil {
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return err.Error()
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}
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timestamp := time.Now()
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rb := serv.ResponseBuilder()
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var format ast.OutputFormat
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if Json != "" {
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format = ast.JSON
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rb.SetContentType(gorest.Application_Json)
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} else {
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format = ast.TEXT
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rb.SetContentType(gorest.Text_Plain)
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}
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return ast.EvalToString(exprNode, ×tamp, format)
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}
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