You've already forked opentelemetry-go
mirror of
https://github.com/open-telemetry/opentelemetry-go.git
synced 2025-11-25 22:41:46 +02:00
8d3ae4c5ed
* fix: Fix stdouttrace/example_test to make the trace_id same. * fix: restore Example --------- Co-authored-by: Damien Mathieu <damien.mathieu@elastic.co>
99 lines
2.5 KiB
Go
99 lines
2.5 KiB
Go
// Copyright The OpenTelemetry Authors
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package stdouttrace_test
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"log"
|
|
|
|
"go.opentelemetry.io/otel"
|
|
"go.opentelemetry.io/otel/exporters/stdout/stdouttrace"
|
|
"go.opentelemetry.io/otel/sdk/resource"
|
|
sdktrace "go.opentelemetry.io/otel/sdk/trace"
|
|
semconv "go.opentelemetry.io/otel/semconv/v1.24.0"
|
|
"go.opentelemetry.io/otel/trace"
|
|
)
|
|
|
|
const (
|
|
instrumentationName = "github.com/instrumentron"
|
|
instrumentationVersion = "0.1.0"
|
|
)
|
|
|
|
var tracer = otel.GetTracerProvider().Tracer(
|
|
instrumentationName,
|
|
trace.WithInstrumentationVersion(instrumentationVersion),
|
|
trace.WithSchemaURL(semconv.SchemaURL),
|
|
)
|
|
|
|
func add(ctx context.Context, x, y int64) (context.Context, int64) {
|
|
var span trace.Span
|
|
ctx, span = tracer.Start(ctx, "Addition")
|
|
defer span.End()
|
|
|
|
return ctx, x + y
|
|
}
|
|
|
|
func multiply(ctx context.Context, x, y int64) (context.Context, int64) {
|
|
var span trace.Span
|
|
ctx, span = tracer.Start(ctx, "Multiplication")
|
|
defer span.End()
|
|
|
|
return ctx, x * y
|
|
}
|
|
|
|
func Resource() *resource.Resource {
|
|
return resource.NewWithAttributes(
|
|
semconv.SchemaURL,
|
|
semconv.ServiceName("stdout-example"),
|
|
semconv.ServiceVersion("0.0.1"),
|
|
)
|
|
}
|
|
|
|
func InstallExportPipeline() (func(context.Context) error, error) {
|
|
exporter, err := stdouttrace.New(stdouttrace.WithPrettyPrint())
|
|
if err != nil {
|
|
return nil, fmt.Errorf("creating stdout exporter: %w", err)
|
|
}
|
|
|
|
tracerProvider := sdktrace.NewTracerProvider(
|
|
sdktrace.WithBatcher(exporter),
|
|
sdktrace.WithResource(Resource()),
|
|
)
|
|
otel.SetTracerProvider(tracerProvider)
|
|
|
|
return tracerProvider.Shutdown, nil
|
|
}
|
|
|
|
func Example() {
|
|
ctx := context.Background()
|
|
|
|
// Registers a tracer Provider globally.
|
|
shutdown, err := InstallExportPipeline()
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
defer func() {
|
|
if err := shutdown(ctx); err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
}()
|
|
|
|
ctx, ans := multiply(ctx, 2, 2)
|
|
ctx, ans = multiply(ctx, ans, 10)
|
|
ctx, ans = add(ctx, ans, 2)
|
|
log.Println("the answer is", ans)
|
|
}
|