mirror of
https://github.com/open-telemetry/opentelemetry-go.git
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c4ba4811a2
* Add semconv/v1.7.0 package Generated from the v1.7.0 release of the specification using the semconvgen tool manually. This also updates the project to use this version of the semconv package. This does not include the prior, and missing, v1.5.0 and v1.6.0 versions of the semconv package. They are planned to be added in a follow-on PR. * Update CHANGELOG.md
94 lines
2.4 KiB
Go
94 lines
2.4 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 stdouttrace_test
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import (
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"context"
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"log"
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"go.opentelemetry.io/otel"
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"go.opentelemetry.io/otel/exporters/stdout/stdouttrace"
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"go.opentelemetry.io/otel/sdk/resource"
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sdktrace "go.opentelemetry.io/otel/sdk/trace"
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semconv "go.opentelemetry.io/otel/semconv/v1.7.0"
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"go.opentelemetry.io/otel/trace"
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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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tracer = otel.GetTracerProvider().Tracer(
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instrumentationName,
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trace.WithInstrumentationVersion(instrumentationVersion),
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trace.WithSchemaURL(semconv.SchemaURL),
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)
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)
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func add(ctx context.Context, x, y int64) int64 {
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var span trace.Span
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_, span = tracer.Start(ctx, "Addition")
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defer span.End()
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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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var span trace.Span
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_, span = tracer.Start(ctx, "Multiplication")
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defer span.End()
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return x * y
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}
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func Resource() *resource.Resource {
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return resource.NewWithAttributes(
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semconv.SchemaURL,
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semconv.ServiceNameKey.String("stdout-example"),
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semconv.ServiceVersionKey.String("0.0.1"),
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)
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}
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func InstallExportPipeline(ctx context.Context) func() {
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exporter, err := stdouttrace.New(stdouttrace.WithPrettyPrint())
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if err != nil {
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log.Fatalf("creating stdout exporter: %v", err)
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}
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tracerProvider := sdktrace.NewTracerProvider(
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sdktrace.WithBatcher(exporter),
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sdktrace.WithResource(Resource()),
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)
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otel.SetTracerProvider(tracerProvider)
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return func() {
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if err := tracerProvider.Shutdown(ctx); err != nil {
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log.Fatalf("stopping tracer provider: %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 tracer 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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