[chore] remove unused opencensus code

This is cleaning up opencensus code after the feature gate is marked stable.

Signed-off-by: Alex Boten <aboten@lightstep.com>

cmd/mdatagen/go.mod

@@ -18,16 +18,12 @@ require (
 )
 
 require (
-	contrib.go.opencensus.io/exporter/prometheus v0.4.2 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/go-kit/log v0.2.1 // indirect
-	github.com/go-logfmt/logfmt v0.5.1 // indirect
 	github.com/go-logr/logr v1.4.1 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
-	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/knadh/koanf/maps v0.1.1 // indirect
@@ -43,8 +39,6 @@ require (
 	github.com/prometheus/client_model v0.5.0 // indirect
 	github.com/prometheus/common v0.46.0 // indirect
 	github.com/prometheus/procfs v0.12.0 // indirect
-	github.com/prometheus/statsd_exporter v0.22.7 // indirect
-	go.opencensus.io v0.24.0 // indirect
 	go.opentelemetry.io/collector/config/configtelemetry v0.93.0 // indirect
 	go.opentelemetry.io/collector/consumer v0.93.0 // indirect
 	go.opentelemetry.io/otel v1.22.0 // indirect
@@ -56,7 +50,6 @@ require (
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20231002182017-d307bd883b97 // indirect
 	google.golang.org/grpc v1.60.1 // indirect
 	google.golang.org/protobuf v1.32.0 // indirect
-	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 

cmd/otelcorecol/go.mod

@@ -30,15 +30,12 @@ require (
 
 require (
 	cloud.google.com/go/compute v1.23.3 // indirect
-	contrib.go.opencensus.io/exporter/prometheus v0.4.2 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cenkalti/backoff/v4 v4.2.1 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/fsnotify/fsnotify v1.7.0 // indirect
-	github.com/go-kit/log v0.2.1 // indirect
-	github.com/go-logfmt/logfmt v0.5.1 // indirect
 	github.com/go-logr/logr v1.4.1 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-ole/go-ole v1.2.6 // indirect
@@ -68,7 +65,6 @@ require (
 	github.com/prometheus/client_model v0.5.0 // indirect
 	github.com/prometheus/common v0.46.0 // indirect
 	github.com/prometheus/procfs v0.12.0 // indirect
-	github.com/prometheus/statsd_exporter v0.22.7 // indirect
 	github.com/rs/cors v1.10.1 // indirect
 	github.com/shirou/gopsutil/v3 v3.23.12 // indirect
 	github.com/shoenig/go-m1cpu v0.1.6 // indirect
@@ -125,7 +121,6 @@ require (
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20240102182953-50ed04b92917 // indirect
 	google.golang.org/grpc v1.60.1 // indirect
 	google.golang.org/protobuf v1.32.0 // indirect
-	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 

component/componenttest/obsreporttest.go

@@ -6,10 +6,8 @@ package componenttest // import "go.opentelemetry.io/collector/component/compone
 import (
 	"context"
 
-	ocprom "contrib.go.opencensus.io/exporter/prometheus"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
-	"go.opencensus.io/stats/view"
 	otelprom "go.opentelemetry.io/otel/exporters/prometheus"
 	sdkmetric "go.opentelemetry.io/otel/sdk/metric"
 	"go.opentelemetry.io/otel/sdk/resource"
@@ -39,11 +37,9 @@ type TestTelemetry struct {
 	ts           component.TelemetrySettings
 	id           component.ID
 	SpanRecorder *tracetest.SpanRecorder
-	views        []*view.View
 
 	prometheusChecker *prometheusChecker
 	meterProvider     *sdkmetric.MeterProvider
-	ocExporter        *ocprom.Exporter
 }
 
 // CheckExporterTraces checks that for the current exported values for trace exporter metrics match given values.
@@ -124,8 +120,6 @@ func (tts *TestTelemetry) CheckScraperMetrics(receiver component.ID, scraper com
 
 // Shutdown unregisters any views and shuts down the SpanRecorder
 func (tts *TestTelemetry) Shutdown(ctx context.Context) error {
-	view.Unregister(tts.views...)
-	view.UnregisterExporter(tts.ocExporter)
 	var errs error
 	errs = multierr.Append(errs, tts.SpanRecorder.Shutdown(ctx))
 	if tts.meterProvider != nil {
@@ -153,18 +147,6 @@ func SetupTelemetry(id component.ID) (TestTelemetry, error) {
 	}
 	settings.ts.TracerProvider = tp
 	settings.ts.MetricsLevel = configtelemetry.LevelNormal
-	err := view.Register(settings.views...)
-	if err != nil {
-		return settings, err
-	}
-
-	promReg := prometheus.NewRegistry()
-
-	settings.ocExporter, err = ocprom.NewExporter(ocprom.Options{Registry: promReg})
-	if err != nil {
-		return settings, err
-	}
-	view.RegisterExporter(settings.ocExporter)
 
 	promRegOtel := prometheus.NewRegistry()
 

component/componenttest/otelprometheuschecker.go

@@ -11,7 +11,6 @@ import (
 
 	io_prometheus_client "github.com/prometheus/client_model/go"
 	"github.com/prometheus/common/expfmt"
-	"go.opencensus.io/stats/view"
 	"go.opentelemetry.io/otel/attribute"
 	"go.uber.org/multierr"
 
@@ -101,8 +100,6 @@ func (pc *prometheusChecker) checkExporterEnqueueFailed(exporter component.ID, d
 
 func (pc *prometheusChecker) checkExporterMetricGauge(exporter component.ID, metric string, val int64) error {
 	exporterAttrs := attributesForExporterMetrics(exporter)
-	// Forces a flush for the opencensus view data.
-	_, _ = view.RetrieveData(metric)
 
 	ts, err := pc.getMetric(metric, io_prometheus_client.MetricType_GAUGE, exporterAttrs)
 	if err != nil {
@@ -118,8 +115,6 @@ func (pc *prometheusChecker) checkExporterMetricGauge(exporter component.ID, met
 }
 
 func (pc *prometheusChecker) checkCounter(expectedMetric string, value int64, attrs []attribute.KeyValue) error {
-	// Forces a flush for the opencensus view data.
-	_, _ = view.RetrieveData(expectedMetric)
 
 	ts, err := pc.getMetric(expectedMetric, io_prometheus_client.MetricType_COUNTER, attrs)
 	if err != nil {

component/go.mod

@@ -3,12 +3,10 @@ module go.opentelemetry.io/collector/component
 go 1.20
 
 require (
-	contrib.go.opencensus.io/exporter/prometheus v0.4.2
 	github.com/prometheus/client_golang v1.18.0
 	github.com/prometheus/client_model v0.5.0
 	github.com/prometheus/common v0.46.0
 	github.com/stretchr/testify v1.8.4
-	go.opencensus.io v0.24.0
 	go.opentelemetry.io/collector/config/configtelemetry v0.93.0
 	go.opentelemetry.io/collector/confmap v0.93.0
 	go.opentelemetry.io/collector/pdata v1.0.1
@@ -27,12 +25,9 @@ require (
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/go-kit/log v0.2.1 // indirect
-	github.com/go-logfmt/logfmt v0.5.1 // indirect
 	github.com/go-logr/logr v1.4.1 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
-	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/knadh/koanf/maps v0.1.1 // indirect
 	github.com/knadh/koanf/providers/confmap v0.1.0 // indirect
@@ -42,14 +37,12 @@ require (
 	github.com/mitchellh/reflectwalk v1.0.2 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/prometheus/procfs v0.12.0 // indirect
-	github.com/prometheus/statsd_exporter v0.22.7 // indirect
 	golang.org/x/net v0.20.0 // indirect
 	golang.org/x/sys v0.16.0 // indirect
 	golang.org/x/text v0.14.0 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20231002182017-d307bd883b97 // indirect
 	google.golang.org/grpc v1.60.1 // indirect
 	google.golang.org/protobuf v1.32.0 // indirect
-	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )