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opentelemetry-go/exporters/otlp/otlptrace/otlptracehttp/example_test.go
Tyler Yahn 5568a30723
Add semconv/v1.12.0 (#3010)
* Add semconv/v1.12.0

* Update all semconv use to v1.12.0

Co-authored-by: Aaron Clawson <3766680+MadVikingGod@users.noreply.github.com>
2022-07-13 09:55:43 -04:00

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 otlptracehttp_test
import (
"context"
"fmt"
"log"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/exporters/otlp/otlptrace"
"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp"
"go.opentelemetry.io/otel/sdk/resource"
sdktrace "go.opentelemetry.io/otel/sdk/trace"
semconv "go.opentelemetry.io/otel/semconv/v1.12.0"
"go.opentelemetry.io/otel/trace"
)
const (
instrumentationName = "github.com/instrumentron"
instrumentationVersion = "v0.1.0"
)
var (
tracer = otel.GetTracerProvider().Tracer(
instrumentationName,
trace.WithInstrumentationVersion(instrumentationVersion),
trace.WithSchemaURL(semconv.SchemaURL),
)
)
func add(ctx context.Context, x, y int64) int64 {
var span trace.Span
_, span = tracer.Start(ctx, "Addition")
defer span.End()
return x + y
}
func multiply(ctx context.Context, x, y int64) int64 {
var span trace.Span
_, span = tracer.Start(ctx, "Multiplication")
defer span.End()
return x * y
}
func newResource() *resource.Resource {
return resource.NewWithAttributes(
semconv.SchemaURL,
semconv.ServiceNameKey.String("otlptrace-example"),
semconv.ServiceVersionKey.String("0.0.1"),
)
}
func installExportPipeline(ctx context.Context) (func(context.Context) error, error) {
client := otlptracehttp.NewClient()
exporter, err := otlptrace.New(ctx, client)
if err != nil {
return nil, fmt.Errorf("creating OTLP trace exporter: %w", err)
}
tracerProvider := sdktrace.NewTracerProvider(
sdktrace.WithBatcher(exporter),
sdktrace.WithResource(newResource()),
)
otel.SetTracerProvider(tracerProvider)
return tracerProvider.Shutdown, nil
}
func Example() {
ctx := context.Background()
// Registers a tracer Provider globally.
shutdown, err := installExportPipeline(ctx)
if err != nil {
log.Fatal(err)
}
defer func() {
if err := shutdown(ctx); err != nil {
log.Fatal(err)
}
}()
log.Println("the answer is", add(ctx, multiply(ctx, multiply(ctx, 2, 2), 10), 2))
}