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a7b9d02167
* s/ValueRecorder/Histogram/g * s/ValueObserver/GaugeObserver/g * s/UpDownSumObserver/UpDownCounterObserver/g * s/SumObserver/CounterObserver/g * changelog * pr num * unstable->experimental * Apply suggestions from code review Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com> * Apply suggestions from code review * apply feedback from @evantorrie by hand * Apply suggestions from code review Thanks Co-authored-by: ET <evantorrie@users.noreply.github.com> * Update sdk/export/metric/metric.go * Apply suggestions from code review Thank you @evantorrie ! Co-authored-by: ET <evantorrie@users.noreply.github.com> * revert getting-started fix let tyler's update remove this text * more variable name fixes * test repair Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com> Co-authored-by: ET <evantorrie@users.noreply.github.com> Co-authored-by: Anthony Mirabella <a9@aneurysm9.com>
102 lines
2.6 KiB
Go
102 lines
2.6 KiB
Go
// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package stdoutmetric_test
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import (
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"context"
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"log"
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"go.opentelemetry.io/otel/exporters/stdout/stdoutmetric"
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"go.opentelemetry.io/otel/attribute"
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"go.opentelemetry.io/otel/metric"
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"go.opentelemetry.io/otel/metric/global"
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controller "go.opentelemetry.io/otel/sdk/metric/controller/basic"
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processor "go.opentelemetry.io/otel/sdk/metric/processor/basic"
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"go.opentelemetry.io/otel/sdk/metric/selector/simple"
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)
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const (
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instrumentationName = "github.com/instrumentron"
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instrumentationVersion = "v0.1.0"
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)
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var (
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meter = global.GetMeterProvider().Meter(
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instrumentationName,
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metric.WithInstrumentationVersion(instrumentationVersion),
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)
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loopCounter = metric.Must(meter).NewInt64Counter("function.loops")
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paramValue = metric.Must(meter).NewInt64Histogram("function.param")
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nameKey = attribute.Key("function.name")
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)
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func add(ctx context.Context, x, y int64) int64 {
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nameKV := nameKey.String("add")
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loopCounter.Add(ctx, 1, nameKV)
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paramValue.Record(ctx, x, nameKV)
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paramValue.Record(ctx, y, nameKV)
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return x + y
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}
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func multiply(ctx context.Context, x, y int64) int64 {
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nameKV := nameKey.String("multiply")
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loopCounter.Add(ctx, 1, nameKV)
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paramValue.Record(ctx, x, nameKV)
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paramValue.Record(ctx, y, nameKV)
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return x * y
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}
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func InstallExportPipeline(ctx context.Context) func() {
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exporter, err := stdoutmetric.New(stdoutmetric.WithPrettyPrint())
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if err != nil {
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log.Fatalf("creating stdoutmetric exporter: %v", err)
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}
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pusher := controller.New(
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processor.New(
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simple.NewWithInexpensiveDistribution(),
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exporter,
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),
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controller.WithExporter(exporter),
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)
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if err = pusher.Start(ctx); err != nil {
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log.Fatalf("starting push controller: %v", err)
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}
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global.SetMeterProvider(pusher.MeterProvider())
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return func() {
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if err := pusher.Stop(ctx); err != nil {
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log.Fatalf("stopping push controller: %v", err)
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}
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}
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}
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func Example() {
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ctx := context.Background()
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// Registers a meter Provider globally.
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cleanup := InstallExportPipeline(ctx)
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defer cleanup()
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log.Println("the answer is", add(ctx, multiply(ctx, multiply(ctx, 2, 2), 10), 2))
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}
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