136 lines
3.2 KiB
Go
136 lines
3.2 KiB
Go
// Copyright The OpenTelemetry Authors
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// SPDX-License-Identifier: Apache-2.0
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package receiver_test
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import (
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"context"
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"fmt"
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"time"
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"go.opentelemetry.io/collector/component"
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"go.opentelemetry.io/collector/consumer"
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"go.opentelemetry.io/collector/pdata/pcommon"
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"go.opentelemetry.io/collector/pdata/ptrace"
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"go.opentelemetry.io/collector/receiver"
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)
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var typeStr = component.MustNewType("example")
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type exampleConfig struct {
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Interval time.Duration
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}
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// Reciver must implement the Start() and Shutdown() methods so the receiver type can be compliant
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// with the receiver.Traces interface.
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type exampleReceiver struct {
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host component.Host
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cancel context.CancelFunc
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nextConsumer consumer.Traces
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config exampleConfig
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}
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func (rcvr *exampleReceiver) Start(ctx context.Context, host component.Host) error {
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rcvr.host = host
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ctx, rcvr.cancel = context.WithCancel(ctx)
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go func() {
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ticker := time.NewTicker(rcvr.config.Interval)
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defer ticker.Stop()
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for {
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select {
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case <-ticker.C:
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// Your receiver processing code should come here
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err := rcvr.nextConsumer.ConsumeTraces(ctx, generateTrace())
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if err != nil {
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fmt.Println("Error when consuming trace: %w", err)
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}
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case <-ctx.Done():
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return
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}
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}
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}()
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return nil
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}
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func (rcvr *exampleReceiver) Shutdown(_ context.Context) error {
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if rcvr.cancel != nil {
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rcvr.cancel()
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}
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return nil
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}
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func generateTrace() ptrace.Traces {
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traces := ptrace.NewTraces()
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// In reallity you may need to fetch or receive and transform
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// some telemetry data.
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// For this example we will just generate some dummy data
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resourceSpan := traces.ResourceSpans().AppendEmpty()
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resource := resourceSpan.Resource()
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attrs := resource.Attributes()
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attrs.PutInt("id", 1)
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scopeSpans := resourceSpan.ScopeSpans().AppendEmpty()
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scopeSpans.Scope().SetName("example-system")
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scopeSpans.Scope().SetVersion("v1.0")
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traceID := pcommon.TraceID([]byte("1"))
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spanID := pcommon.SpanID([]byte("2"))
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span := scopeSpans.Spans().AppendEmpty()
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span.SetTraceID(traceID)
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span.SetSpanID(spanID)
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span.SetName("Operation 1")
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span.SetKind(ptrace.SpanKindClient)
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span.Status().SetCode(ptrace.StatusCodeOk)
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span.SetStartTimestamp(pcommon.NewTimestampFromTime(time.Now()))
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span.SetEndTimestamp(pcommon.NewTimestampFromTime(time.Now().Add(4 * time.Millisecond)))
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// Other resources and spans could also be added.
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return traces
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}
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func createDefaultConfig() component.Config {
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return &exampleConfig{
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Interval: time.Minute,
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}
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}
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func createExampleReceiver(_ context.Context, _ receiver.Settings,
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baseCfg component.Config, consumer consumer.Traces,
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) (receiver.Traces, error) {
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exampleCfg := baseCfg.(*exampleConfig)
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rcvr := &exampleReceiver{
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nextConsumer: consumer,
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config: *exampleCfg,
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}
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return rcvr, nil
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}
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func NewFactory() receiver.Factory {
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return receiver.NewFactory(
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typeStr,
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createDefaultConfig,
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receiver.WithTraces(createExampleReceiver, component.StabilityLevelAlpha))
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}
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func Example() {
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// The NewFactory method can then be used on the Collector's initialization process
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// on your components.go file.
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// In this example we will just instantiate and print it's type
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exampleReceiver := NewFactory()
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fmt.Println(exampleReceiver.Type())
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// Output:
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// example
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}
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