forked from cerc-io/plugeth
be65b47645
The Go authors updated golang/x/ext to change the function signature of the slices sort method. It's an entire shitshow now because x/ext is not tagged, so everyone's codebase just picked a new version that some other dep depends on, causing our code to fail building. This PR updates the dep on our code too and does all the refactorings to follow upstream...
98 lines
3.4 KiB
Go
98 lines
3.4 KiB
Go
package metrics
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import (
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"fmt"
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"io"
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"strings"
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"time"
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"golang.org/x/exp/slices"
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)
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// Write sorts writes each metric in the given registry periodically to the
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// given io.Writer.
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func Write(r Registry, d time.Duration, w io.Writer) {
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for range time.Tick(d) {
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WriteOnce(r, w)
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}
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}
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// WriteOnce sorts and writes metrics in the given registry to the given
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// io.Writer.
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func WriteOnce(r Registry, w io.Writer) {
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var namedMetrics []namedMetric
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r.Each(func(name string, i interface{}) {
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namedMetrics = append(namedMetrics, namedMetric{name, i})
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})
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slices.SortFunc(namedMetrics, namedMetric.cmp)
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for _, namedMetric := range namedMetrics {
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switch metric := namedMetric.m.(type) {
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case Counter:
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fmt.Fprintf(w, "counter %s\n", namedMetric.name)
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fmt.Fprintf(w, " count: %9d\n", metric.Count())
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case CounterFloat64:
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fmt.Fprintf(w, "counter %s\n", namedMetric.name)
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fmt.Fprintf(w, " count: %f\n", metric.Count())
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case Gauge:
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fmt.Fprintf(w, "gauge %s\n", namedMetric.name)
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fmt.Fprintf(w, " value: %9d\n", metric.Value())
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case GaugeFloat64:
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fmt.Fprintf(w, "gauge %s\n", namedMetric.name)
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fmt.Fprintf(w, " value: %f\n", metric.Value())
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case Healthcheck:
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metric.Check()
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fmt.Fprintf(w, "healthcheck %s\n", namedMetric.name)
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fmt.Fprintf(w, " error: %v\n", metric.Error())
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case Histogram:
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h := metric.Snapshot()
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ps := h.Percentiles([]float64{0.5, 0.75, 0.95, 0.99, 0.999})
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fmt.Fprintf(w, "histogram %s\n", namedMetric.name)
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fmt.Fprintf(w, " count: %9d\n", h.Count())
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fmt.Fprintf(w, " min: %9d\n", h.Min())
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fmt.Fprintf(w, " max: %9d\n", h.Max())
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fmt.Fprintf(w, " mean: %12.2f\n", h.Mean())
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fmt.Fprintf(w, " stddev: %12.2f\n", h.StdDev())
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fmt.Fprintf(w, " median: %12.2f\n", ps[0])
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fmt.Fprintf(w, " 75%%: %12.2f\n", ps[1])
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fmt.Fprintf(w, " 95%%: %12.2f\n", ps[2])
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fmt.Fprintf(w, " 99%%: %12.2f\n", ps[3])
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fmt.Fprintf(w, " 99.9%%: %12.2f\n", ps[4])
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case Meter:
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m := metric.Snapshot()
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fmt.Fprintf(w, "meter %s\n", namedMetric.name)
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fmt.Fprintf(w, " count: %9d\n", m.Count())
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fmt.Fprintf(w, " 1-min rate: %12.2f\n", m.Rate1())
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fmt.Fprintf(w, " 5-min rate: %12.2f\n", m.Rate5())
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fmt.Fprintf(w, " 15-min rate: %12.2f\n", m.Rate15())
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fmt.Fprintf(w, " mean rate: %12.2f\n", m.RateMean())
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case Timer:
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t := metric.Snapshot()
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ps := t.Percentiles([]float64{0.5, 0.75, 0.95, 0.99, 0.999})
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fmt.Fprintf(w, "timer %s\n", namedMetric.name)
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fmt.Fprintf(w, " count: %9d\n", t.Count())
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fmt.Fprintf(w, " min: %9d\n", t.Min())
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fmt.Fprintf(w, " max: %9d\n", t.Max())
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fmt.Fprintf(w, " mean: %12.2f\n", t.Mean())
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fmt.Fprintf(w, " stddev: %12.2f\n", t.StdDev())
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fmt.Fprintf(w, " median: %12.2f\n", ps[0])
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fmt.Fprintf(w, " 75%%: %12.2f\n", ps[1])
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fmt.Fprintf(w, " 95%%: %12.2f\n", ps[2])
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fmt.Fprintf(w, " 99%%: %12.2f\n", ps[3])
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fmt.Fprintf(w, " 99.9%%: %12.2f\n", ps[4])
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fmt.Fprintf(w, " 1-min rate: %12.2f\n", t.Rate1())
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fmt.Fprintf(w, " 5-min rate: %12.2f\n", t.Rate5())
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fmt.Fprintf(w, " 15-min rate: %12.2f\n", t.Rate15())
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fmt.Fprintf(w, " mean rate: %12.2f\n", t.RateMean())
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}
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}
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}
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type namedMetric struct {
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name string
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m interface{}
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}
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func (m namedMetric) cmp(other namedMetric) int {
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return strings.Compare(m.name, other.name)
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}
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