mirror of
https://github.com/open-telemetry/opentelemetry-go.git
synced 2024-12-12 10:04:29 +02:00
1f5b159161
* Refactor golangci-lint conf Order settings alphabetically. * Add revive settings to golangci conf * Check blank imports * Check bool-literal-in-expr * Check constant-logical-expr * Check context-as-argument * Check context-key-type * Check deep-exit * Check defer * Check dot-imports * Check duplicated-imports * Check early-return * Check empty-block * Check empty-lines * Check error-naming * Check error-return * Check error-strings * Check errorf * Stop ignoring context first arg in tests * Check exported comments * Check flag-parameter * Check identical branches * Check if-return * Check increment-decrement * Check indent-error-flow * Check deny list of go imports * Check import shadowing * Check package comments * Check range * Check range val in closure * Check range val address * Check redefines builtin id * Check string-format * Check struct tag * Check superfluous else * Check time equal * Check var naming * Check var declaration * Check unconditional recursion * Check unexported return * Check unhandled errors * Check unnecessary stmt * Check unnecessary break * Check waitgroup by value * Exclude deep-exit check in example*_test.go files
84 lines
2.4 KiB
Go
84 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 main
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import (
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"context"
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"fmt"
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"log"
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"github.com/go-logr/stdr"
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"go.opentelemetry.io/otel"
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"go.opentelemetry.io/otel/attribute"
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"go.opentelemetry.io/otel/baggage"
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"go.opentelemetry.io/otel/example/namedtracer/foo"
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"go.opentelemetry.io/otel/exporters/stdout/stdouttrace"
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sdktrace "go.opentelemetry.io/otel/sdk/trace"
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"go.opentelemetry.io/otel/trace"
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)
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var (
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fooKey = attribute.Key("ex.com/foo")
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barKey = attribute.Key("ex.com/bar")
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anotherKey = attribute.Key("ex.com/another")
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)
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var tp *sdktrace.TracerProvider
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// initTracer creates and registers trace provider instance.
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func initTracer() error {
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exp, err := stdouttrace.New(stdouttrace.WithPrettyPrint())
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if err != nil {
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return fmt.Errorf("failed to initialize stdouttrace exporter: %w", err)
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}
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bsp := sdktrace.NewBatchSpanProcessor(exp)
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tp = sdktrace.NewTracerProvider(
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sdktrace.WithSampler(sdktrace.AlwaysSample()),
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sdktrace.WithSpanProcessor(bsp),
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)
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otel.SetTracerProvider(tp)
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return nil
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}
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func main() {
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// Set logging level to info to see SDK status messages
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stdr.SetVerbosity(5)
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// initialize trace provider.
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if err := initTracer(); err != nil {
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log.Panic(err)
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}
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// Create a named tracer with package path as its name.
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tracer := tp.Tracer("example/namedtracer/main")
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ctx := context.Background()
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defer func() { _ = tp.Shutdown(ctx) }()
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m0, _ := baggage.NewMember(string(fooKey), "foo1")
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m1, _ := baggage.NewMember(string(barKey), "bar1")
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b, _ := baggage.New(m0, m1)
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ctx = baggage.ContextWithBaggage(ctx, b)
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var span trace.Span
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ctx, span = tracer.Start(ctx, "operation")
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defer span.End()
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span.AddEvent("Nice operation!", trace.WithAttributes(attribute.Int("bogons", 100)))
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span.SetAttributes(anotherKey.String("yes"))
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if err := foo.SubOperation(ctx); err != nil {
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panic(err)
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}
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}
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