+++ /dev/null
-// Package multi provides adapters that send observations to multiple metrics
-// simultaneously. This is useful if your service needs to emit to multiple
-// instrumentation systems at the same time, for example if your organization is
-// transitioning from one system to another.
-package multi
-
-import "github.com/go-kit/kit/metrics"
-
-// Counter collects multiple individual counters and treats them as a unit.
-type Counter []metrics.Counter
-
-// NewCounter returns a multi-counter, wrapping the passed counters.
-func NewCounter(c ...metrics.Counter) Counter {
- return Counter(c)
-}
-
-// Add implements counter.
-func (c Counter) Add(delta float64) {
- for _, counter := range c {
- counter.Add(delta)
- }
-}
-
-// With implements counter.
-func (c Counter) With(labelValues ...string) metrics.Counter {
- next := make(Counter, len(c))
- for i := range c {
- next[i] = c[i].With(labelValues...)
- }
- return next
-}
-
-// Gauge collects multiple individual gauges and treats them as a unit.
-type Gauge []metrics.Gauge
-
-// NewGauge returns a multi-gauge, wrapping the passed gauges.
-func NewGauge(g ...metrics.Gauge) Gauge {
- return Gauge(g)
-}
-
-// Set implements Gauge.
-func (g Gauge) Set(value float64) {
- for _, gauge := range g {
- gauge.Set(value)
- }
-}
-
-// With implements gauge.
-func (g Gauge) With(labelValues ...string) metrics.Gauge {
- next := make(Gauge, len(g))
- for i := range g {
- next[i] = g[i].With(labelValues...)
- }
- return next
-}
-
-// Add implements metrics.Gauge.
-func (g Gauge) Add(delta float64) {
- for _, gauge := range g {
- gauge.Add(delta)
- }
-}
-
-// Histogram collects multiple individual histograms and treats them as a unit.
-type Histogram []metrics.Histogram
-
-// NewHistogram returns a multi-histogram, wrapping the passed histograms.
-func NewHistogram(h ...metrics.Histogram) Histogram {
- return Histogram(h)
-}
-
-// Observe implements Histogram.
-func (h Histogram) Observe(value float64) {
- for _, histogram := range h {
- histogram.Observe(value)
- }
-}
-
-// With implements histogram.
-func (h Histogram) With(labelValues ...string) metrics.Histogram {
- next := make(Histogram, len(h))
- for i := range h {
- next[i] = h[i].With(labelValues...)
- }
- return next
-}