micro-meter-victoriametrics/victoriametrics.go
Vasiliy Tolstov 7ae2072909 use meter interface
Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
2021-01-27 00:56:50 +03:00

111 lines
2.8 KiB
Go

package victoriametrics
import (
"io"
"strings"
"time"
"github.com/VictoriaMetrics/metrics"
"github.com/unistack-org/micro/v3/meter"
)
type victoriametricsMeter struct {
set *metrics.Set
opts meter.Options
}
func NewMeter(opts ...meter.Option) meter.Meter {
return &victoriametricsMeter{set: metrics.NewSet(), opts: meter.NewOptions(opts...)}
}
func (r *victoriametricsMeter) buildName(name string, opts ...meter.Option) string {
var b strings.Builder
options := r.opts
for _, o := range opts {
o(&options)
}
if len(options.MetricPrefix) > 0 {
_, _ = b.WriteString(options.MetricPrefix)
}
labelPrefix := false
if len(options.LabelPrefix) > 0 {
labelPrefix = true
}
_, _ = b.WriteString(name)
if options.Labels.Len() > 0 {
_, _ = b.WriteRune('{')
iter := options.Labels.Iter()
var k, v string
for idx := 0; iter.Next(&k, &v); idx++ {
if idx > 0 {
_, _ = b.WriteRune(',')
}
if labelPrefix {
_, _ = b.WriteString(options.LabelPrefix)
}
_, _ = b.WriteString(k)
_, _ = b.WriteString(`="`)
_, _ = b.WriteString(v)
_, _ = b.WriteString(`"`)
}
_, _ = b.WriteRune('}')
}
return b.String()
}
func (r *victoriametricsMeter) Counter(name string, opts ...meter.Option) meter.Counter {
return r.set.GetOrCreateCounter(r.buildName(name, opts...))
}
func (r *victoriametricsMeter) FloatCounter(name string, opts ...meter.Option) meter.FloatCounter {
return r.set.GetOrCreateFloatCounter(r.buildName(name, opts...))
}
func (r *victoriametricsMeter) Gauge(name string, f func() float64, opts ...meter.Option) meter.Gauge {
return r.set.GetOrCreateGauge(r.buildName(name, opts...), f)
}
func (r *victoriametricsMeter) Histogram(name string, opts ...meter.Option) meter.Histogram {
return r.set.GetOrCreateHistogram(r.buildName(name, opts...))
}
func (r *victoriametricsMeter) Summary(name string, opts ...meter.Option) meter.Summary {
return r.set.GetOrCreateSummary(r.buildName(name, opts...))
}
func (r *victoriametricsMeter) SummaryExt(name string, window time.Duration, quantiles []float64, opts ...meter.Option) meter.Summary {
return r.set.GetOrCreateSummaryExt(r.buildName(name, opts...), window, quantiles)
}
func (r *victoriametricsMeter) Set(opts ...meter.Option) meter.Meter {
m := &victoriametricsMeter{opts: meter.NewOptions(opts...), set: metrics.NewSet()}
return m
}
func (r *victoriametricsMeter) Init(opts ...meter.Option) error {
for _, o := range opts {
o(&r.opts)
}
return nil
}
func (r *victoriametricsMeter) Write(w io.Writer, withProcessMetrics bool) error {
r.set.WritePrometheus(w)
if withProcessMetrics {
metrics.WriteProcessMetrics(w)
}
return nil
}
func (r *victoriametricsMeter) Options() meter.Options {
return r.opts
}
func (r *victoriametricsMeter) String() string {
return "victoriametrics"
}