Moved to google.golang.org/genproto/googleapis/api/annotations

Fixes #52

vendor/github.com/go-kit/kit/metrics/provider/discard.go

@@ -0,0 +1,24 @@
+package provider
+
+import (
+	"github.com/go-kit/kit/metrics"
+	"github.com/go-kit/kit/metrics/discard"
+)
+
+type discardProvider struct{}
+
+// NewDiscardProvider returns a provider that produces no-op metrics via the
+// discarding backend.
+func NewDiscardProvider() Provider { return discardProvider{} }
+
+// NewCounter implements Provider.
+func (discardProvider) NewCounter(string) metrics.Counter { return discard.NewCounter() }
+
+// NewGauge implements Provider.
+func (discardProvider) NewGauge(string) metrics.Gauge { return discard.NewGauge() }
+
+// NewHistogram implements Provider.
+func (discardProvider) NewHistogram(string, int) metrics.Histogram { return discard.NewHistogram() }
+
+// Stop implements Provider.
+func (discardProvider) Stop() {}

vendor/github.com/go-kit/kit/metrics/provider/dogstatsd.go

@@ -0,0 +1,43 @@
+package provider
+
+import (
+	"github.com/go-kit/kit/metrics"
+	"github.com/go-kit/kit/metrics/dogstatsd"
+)
+
+type dogstatsdProvider struct {
+	d    *dogstatsd.Dogstatsd
+	stop func()
+}
+
+// NewDogstatsdProvider wraps the given Dogstatsd object and stop func and
+// returns a Provider that produces Dogstatsd metrics. A typical stop function
+// would be ticker.Stop from the ticker passed to the SendLoop helper method.
+func NewDogstatsdProvider(d *dogstatsd.Dogstatsd, stop func()) Provider {
+	return &dogstatsdProvider{
+		d:    d,
+		stop: stop,
+	}
+}
+
+// NewCounter implements Provider, returning a new Dogstatsd Counter with a
+// sample rate of 1.0.
+func (p *dogstatsdProvider) NewCounter(name string) metrics.Counter {
+	return p.d.NewCounter(name, 1.0)
+}
+
+// NewGauge implements Provider.
+func (p *dogstatsdProvider) NewGauge(name string) metrics.Gauge {
+	return p.d.NewGauge(name)
+}
+
+// NewHistogram implements Provider, returning a new Dogstatsd Histogram (note:
+// not a Timing) with a sample rate of 1.0. The buckets argument is ignored.
+func (p *dogstatsdProvider) NewHistogram(name string, _ int) metrics.Histogram {
+	return p.d.NewHistogram(name, 1.0)
+}
+
+// Stop implements Provider, invoking the stop function passed at construction.
+func (p *dogstatsdProvider) Stop() {
+	p.stop()
+}

vendor/github.com/go-kit/kit/metrics/provider/expvar.go

@@ -0,0 +1,31 @@
+package provider
+
+import (
+	"github.com/go-kit/kit/metrics"
+	"github.com/go-kit/kit/metrics/expvar"
+)
+
+type expvarProvider struct{}
+
+// NewExpvarProvider returns a Provider that produces expvar metrics.
+func NewExpvarProvider() Provider {
+	return expvarProvider{}
+}
+
+// NewCounter implements Provider.
+func (p expvarProvider) NewCounter(name string) metrics.Counter {
+	return expvar.NewCounter(name)
+}
+
+// NewGauge implements Provider.
+func (p expvarProvider) NewGauge(name string) metrics.Gauge {
+	return expvar.NewGauge(name)
+}
+
+// NewHistogram implements Provider.
+func (p expvarProvider) NewHistogram(name string, buckets int) metrics.Histogram {
+	return expvar.NewHistogram(name, buckets)
+}
+
+// Stop implements Provider, but is a no-op.
+func (p expvarProvider) Stop() {}

vendor/github.com/go-kit/kit/metrics/provider/graphite.go

@@ -0,0 +1,41 @@
+package provider
+
+import (
+	"github.com/go-kit/kit/metrics"
+	"github.com/go-kit/kit/metrics/graphite"
+)
+
+type graphiteProvider struct {
+	g    *graphite.Graphite
+	stop func()
+}
+
+// NewGraphiteProvider wraps the given Graphite object and stop func and returns
+// a Provider that produces Graphite metrics. A typical stop function would be
+// ticker.Stop from the ticker passed to the SendLoop helper method.
+func NewGraphiteProvider(g *graphite.Graphite, stop func()) Provider {
+	return &graphiteProvider{
+		g:    g,
+		stop: stop,
+	}
+}
+
+// NewCounter implements Provider.
+func (p *graphiteProvider) NewCounter(name string) metrics.Counter {
+	return p.g.NewCounter(name)
+}
+
+// NewGauge implements Provider.
+func (p *graphiteProvider) NewGauge(name string) metrics.Gauge {
+	return p.g.NewGauge(name)
+}
+
+// NewHistogram implements Provider.
+func (p *graphiteProvider) NewHistogram(name string, buckets int) metrics.Histogram {
+	return p.g.NewHistogram(name, buckets)
+}
+
+// Stop implements Provider, invoking the stop function passed at construction.
+func (p *graphiteProvider) Stop() {
+	p.stop()
+}

vendor/github.com/go-kit/kit/metrics/provider/influx.go

@@ -0,0 +1,40 @@
+package provider
+
+import (
+	"github.com/go-kit/kit/metrics"
+	"github.com/go-kit/kit/metrics/influx"
+)
+
+type influxProvider struct {
+	in   *influx.Influx
+	stop func()
+}
+
+// NewInfluxProvider takes the given Influx object and stop func, and returns
+// a Provider that produces Influx metrics.
+func NewInfluxProvider(in *influx.Influx, stop func()) Provider {
+	return &influxProvider{
+		in:   in,
+		stop: stop,
+	}
+}
+
+// NewCounter implements Provider. Per-metric tags are not supported.
+func (p *influxProvider) NewCounter(name string) metrics.Counter {
+	return p.in.NewCounter(name)
+}
+
+// NewGauge implements Provider. Per-metric tags are not supported.
+func (p *influxProvider) NewGauge(name string) metrics.Gauge {
+	return p.in.NewGauge(name)
+}
+
+// NewHistogram implements Provider. Per-metric tags are not supported.
+func (p *influxProvider) NewHistogram(name string, buckets int) metrics.Histogram {
+	return p.in.NewHistogram(name)
+}
+
+// Stop implements Provider, invoking the stop function passed at construction.
+func (p *influxProvider) Stop() {
+	p.stop()
+}

vendor/github.com/go-kit/kit/metrics/provider/prometheus.go

@@ -0,0 +1,63 @@
+package provider
+
+import (
+	stdprometheus "github.com/prometheus/client_golang/prometheus"
+
+	"github.com/go-kit/kit/metrics"
+	"github.com/go-kit/kit/metrics/prometheus"
+)
+
+type prometheusProvider struct {
+	namespace string
+	subsystem string
+}
+
+// NewPrometheusProvider returns a Provider that produces Prometheus metrics.
+// Namespace and subsystem are applied to all produced metrics.
+func NewPrometheusProvider(namespace, subsystem string) Provider {
+	return &prometheusProvider{
+		namespace: namespace,
+		subsystem: subsystem,
+	}
+}
+
+// NewCounter implements Provider via prometheus.NewCounterFrom, i.e. the
+// counter is registered. The metric's namespace and subsystem are taken from
+// the Provider. Help is set to the name of the metric, and no const label names
+// are set.
+func (p *prometheusProvider) NewCounter(name string) metrics.Counter {
+	return prometheus.NewCounterFrom(stdprometheus.CounterOpts{
+		Namespace: p.namespace,
+		Subsystem: p.subsystem,
+		Name:      name,
+		Help:      name,
+	}, []string{})
+}
+
+// NewGauge implements Provider via prometheus.NewGaugeFrom, i.e. the gauge is
+// registered. The metric's namespace and subsystem are taken from the Provider.
+// Help is set to the name of the metric, and no const label names are set.
+func (p *prometheusProvider) NewGauge(name string) metrics.Gauge {
+	return prometheus.NewGaugeFrom(stdprometheus.GaugeOpts{
+		Namespace: p.namespace,
+		Subsystem: p.subsystem,
+		Name:      name,
+		Help:      name,
+	}, []string{})
+}
+
+// NewGauge implements Provider via prometheus.NewSummaryFrom, i.e. the summary
+// is registered. The metric's namespace and subsystem are taken from the
+// Provider. Help is set to the name of the metric, and no const label names are
+// set. Buckets are ignored.
+func (p *prometheusProvider) NewHistogram(name string, _ int) metrics.Histogram {
+	return prometheus.NewSummaryFrom(stdprometheus.SummaryOpts{
+		Namespace: p.namespace,
+		Subsystem: p.subsystem,
+		Name:      name,
+		Help:      name,
+	}, []string{})
+}
+
+// Stop implements Provider, but is a no-op.
+func (p *prometheusProvider) Stop() {}

vendor/github.com/go-kit/kit/metrics/provider/provider.go

@@ -0,0 +1,42 @@
+// Package provider provides a factory-like abstraction for metrics backends.
+// This package is provided specifically for the needs of the NY Times framework
+// Gizmo. Most normal Go kit users shouldn't need to use it.
+//
+// Normally, if your microservice needs to support different metrics backends,
+// you can simply do different construction based on a flag. For example,
+//
+//    var latency metrics.Histogram
+//    var requests metrics.Counter
+//    switch *metricsBackend {
+//    case "prometheus":
+//        latency = prometheus.NewSummaryVec(...)
+//        requests = prometheus.NewCounterVec(...)
+//    case "statsd":
+//        s := statsd.New(...)
+//        t := time.NewTicker(5*time.Second)
+//        go s.SendLoop(t.C, "tcp", "statsd.local:8125")
+//        latency = s.NewHistogram(...)
+//        requests = s.NewCounter(...)
+//    default:
+//        log.Fatal("unsupported metrics backend %q", *metricsBackend)
+//    }
+//
+package provider
+
+import (
+	"github.com/go-kit/kit/metrics"
+)
+
+// Provider abstracts over constructors and lifecycle management functions for
+// each supported metrics backend. It should only be used by those who need to
+// swap out implementations dynamically.
+//
+// This is primarily useful for intermediating frameworks, and is likely
+// unnecessary for most Go kit services. See the package-level doc comment for
+// more typical usage instructions.
+type Provider interface {
+	NewCounter(name string) metrics.Counter
+	NewGauge(name string) metrics.Gauge
+	NewHistogram(name string, buckets int) metrics.Histogram
+	Stop()
+}

vendor/github.com/go-kit/kit/metrics/provider/statsd.go

@@ -0,0 +1,43 @@
+package provider
+
+import (
+	"github.com/go-kit/kit/metrics"
+	"github.com/go-kit/kit/metrics/statsd"
+)
+
+type statsdProvider struct {
+	s    *statsd.Statsd
+	stop func()
+}
+
+// NewStatsdProvider wraps the given Statsd object and stop func and returns a
+// Provider that produces Statsd metrics. A typical stop function would be
+// ticker.Stop from the ticker passed to the SendLoop helper method.
+func NewStatsdProvider(s *statsd.Statsd, stop func()) Provider {
+	return &statsdProvider{
+		s:    s,
+		stop: stop,
+	}
+}
+
+// NewCounter implements Provider.
+func (p *statsdProvider) NewCounter(name string) metrics.Counter {
+	return p.s.NewCounter(name, 1.0)
+}
+
+// NewGauge implements Provider.
+func (p *statsdProvider) NewGauge(name string) metrics.Gauge {
+	return p.s.NewGauge(name)
+}
+
+// NewHistogram implements Provider, returning a StatsD Timing that accepts
+// observations in milliseconds. The sample rate is fixed at 1.0. The bucket
+// parameter is ignored.
+func (p *statsdProvider) NewHistogram(name string, _ int) metrics.Histogram {
+	return p.s.NewTiming(name, 1.0)
+}
+
+// Stop implements Provider, invoking the stop function passed at construction.
+func (p *statsdProvider) Stop() {
+	p.stop()
+}