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// Copyright (c) 2021 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package main
import (
"fmt"
"time"
tally "github.com/uber-go/tally/v4"
)
type printStatsReporter struct{}
func newPrintStatsReporter() tally.StatsReporter {
return &printStatsReporter{}
}
func (r *printStatsReporter) ReportCounter(name string, _ map[string]string, value int64) {
fmt.Printf("count %s %d\n", name, value)
}
func (r *printStatsReporter) ReportGauge(name string, _ map[string]string, value float64) {
fmt.Printf("gauge %s %f\n", name, value)
}
func (r *printStatsReporter) ReportTimer(name string, _ map[string]string, interval time.Duration) {
fmt.Printf("timer %s %s\n", name, interval.String())
}
func (r *printStatsReporter) ReportHistogramValueSamples(
name string,
_ map[string]string,
_ tally.Buckets,
bucketLowerBound,
bucketUpperBound float64,
samples int64,
) {
fmt.Printf("histogram %s bucket lower %f upper %f samples %d\n",
name, bucketLowerBound, bucketUpperBound, samples)
}
func (r *printStatsReporter) ReportHistogramDurationSamples(
name string,
_ map[string]string,
_ tally.Buckets,
bucketLowerBound,
bucketUpperBound time.Duration,
samples int64,
) {
fmt.Printf("histogram %s bucket lower %v upper %v samples %d\n",
name, bucketLowerBound, bucketUpperBound, samples)
}
func (r *printStatsReporter) Capabilities() tally.Capabilities {
return r
}
func (r *printStatsReporter) Reporting() bool {
return true
}
func (r *printStatsReporter) Tagging() bool {
return false
}
func (r *printStatsReporter) Flush() {
fmt.Printf("flush\n")
}
func main() {
reporter := newPrintStatsReporter()
rootScope, closer := tally.NewRootScope(tally.ScopeOptions{
Reporter: reporter,
}, time.Second)
defer closer.Close()
subScope := rootScope.SubScope("requests")
bighand := time.NewTicker(time.Millisecond * 2300)
littlehand := time.NewTicker(time.Millisecond * 10)
hugehand := time.NewTicker(time.Millisecond * 5100)
measureThing := rootScope.Gauge("thing")
timings := rootScope.Timer("timings")
tickCounter := subScope.Counter("ticks")
// Spin forever, watch report get called
go func() {
for {
select {
case <-bighand.C:
measureThing.Update(42.1)
case <-littlehand.C:
tickCounter.Inc(1)
case <-hugehand.C:
timings.Record(3200 * time.Millisecond)
}
}
}()
select {}
}
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