NoOutputPropagator.cs

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using System.Collections.Generic;
 
namespace System.Diagnostics;
 
internal sealed class NoOutputPropagator : DistributedContextPropagator
{
    internal static DistributedContextPropagator Instance { get; } = new NoOutputPropagator();
 
 
    public override IReadOnlyCollection<string> Fields { get; } = LegacyPropagator.Instance.Fields;
 
 
    public override void Inject(Activity activity, object carrier, PropagatorSetterCallback setter)
    {
    }
 
    public override void ExtractTraceIdAndState(object carrier, PropagatorGetterCallback getter, out string traceId, out string traceState)
    {
        LegacyPropagator.Instance.ExtractTraceIdAndState(carrier, getter, out traceId, out traceState);
    }
 
    public override IEnumerable<KeyValuePair<string, string>> ExtractBaggage(object carrier, PropagatorGetterCallback getter)
    {
        return LegacyPropagator.Instance.ExtractBaggage(carrier, getter);
    }
}