Cleanup otlptrace testable examples

exporters/otlp/otlptrace/otlptracegrpc/example_test.go

@@ -0,0 +1,42 @@
+// 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 otlptracegrpc_test
+
+import (
+	"context"
+
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc"
+	"go.opentelemetry.io/otel/sdk/trace"
+)
+
+func Example() {
+	ctx := context.Background()
+	exp, err := otlptracegrpc.New(ctx)
+	if err != nil {
+		panic(err)
+	}
+
+	tracerProvider := trace.NewTracerProvider(trace.WithBatcher(exp))
+	defer func() {
+		if err := tracerProvider.Shutdown(ctx); err != nil {
+			panic(err)
+		}
+	}()
+	otel.SetTracerProvider(tracerProvider)
+
+	// From here, the tracerProvider can be used by instrumentation to collect
+	// telemetry.
+}

exporters/otlp/otlptrace/otlptracehttp/example_test.go

@@ -16,79 +16,27 @@ package otlptracehttp_test
 
 import (
 	"context"
-	"fmt"
-	"log"
 
 	"go.opentelemetry.io/otel"
 	"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/v1.21.0"
-	"go.opentelemetry.io/otel/trace"
+	"go.opentelemetry.io/otel/sdk/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) 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.ServiceName("otlptrace-example"),
-		semconv.ServiceVersion("0.0.1"),
-	)
-}
-
-func installExportPipeline(ctx context.Context) (func(context.Context) error, error) {
-	exporter, err := otlptracehttp.New(ctx)
-	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)
+	exp, err := otlptracehttp.New(ctx)
 	if err != nil {
-		log.Fatal(err)
+		panic(err)
 	}
+
+	tracerProvider := trace.NewTracerProvider(trace.WithBatcher(exp))
 	defer func() {
-		if err := shutdown(ctx); err != nil {
-			log.Fatal(err)
+		if err := tracerProvider.Shutdown(ctx); err != nil {
+			panic(err)
 		}
 	}()
+	otel.SetTracerProvider(tracerProvider)
 
-	log.Println("the answer is", add(ctx, multiply(ctx, multiply(ctx, 2, 2), 10), 2))
+	// From here, the tracerProvider can be used by instrumentation to collect
+	// telemetry.
 }