49 lines
1.0 KiB
Go
49 lines
1.0 KiB
Go
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package internal
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import "time"
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// ApdexZone is a transaction classification.
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type ApdexZone int
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// https://en.wikipedia.org/wiki/Apdex
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const (
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ApdexNone ApdexZone = iota
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ApdexSatisfying
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ApdexTolerating
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ApdexFailing
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)
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// ApdexFailingThreshold calculates the threshold at which the transaction is
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// considered a failure.
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func ApdexFailingThreshold(threshold time.Duration) time.Duration {
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return 4 * threshold
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}
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// CalculateApdexZone calculates the apdex based on the transaction duration and
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// threshold.
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//
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// Note that this does not take into account whether or not the transaction
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// had an error. That is expected to be done by the caller.
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func CalculateApdexZone(threshold, duration time.Duration) ApdexZone {
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if duration <= threshold {
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return ApdexSatisfying
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}
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if duration <= ApdexFailingThreshold(threshold) {
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return ApdexTolerating
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}
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return ApdexFailing
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}
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func (zone ApdexZone) label() string {
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switch zone {
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case ApdexSatisfying:
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return "S"
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case ApdexTolerating:
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return "T"
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case ApdexFailing:
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return "F"
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default:
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return ""
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}
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}
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