public DispatchTracingMessageInspector(
string localEndpointName,
ISampler sampler,
IDispatcher dispatcher,
ISpanContextAccessor spanContextAccessor)
{
_localEndpointName = localEndpointName;
_sampler = sampler;
_dispatcher = dispatcher;
_spanContextAccessor = spanContextAccessor;
_spanContextExtractor = new IncomingWebRequestB3SpanContextExtractor();
}
/// <summary>
/// Construct a new <see cref="TracingMiddleware"/>.
/// </summary>
/// <param name="localEndpointName">
/// The endpoint name describes the host recording the span.
/// </param>
/// <param name="spanContextAccessor">
/// A <see cref="ISpanContextAccessor"/> used to access the parent span context.
/// </param>
/// <param name="dispatcher">
/// A <see cref="IDispatcher"/> used to dispatch completed spans to reporters.
/// </param>
/// <param name="sampler">
/// A <see cref="ISampler"/> used to make sampling decisions.
/// </param>
public TracingMiddleware(
string localEndpointName,
ISpanContextAccessor spanContextAccessor,
IDispatcher dispatcher,
ISampler sampler)
{
_localEndpointName = localEndpointName;
_spanContextAccessor = spanContextAccessor ?? throw new ArgumentNullException(nameof(spanContextAccessor));
_dispatcher = dispatcher ?? throw new ArgumentNullException(nameof(dispatcher));
_sampler = sampler ?? throw new ArgumentNullException(nameof(sampler));
_spanContextExtractor = new HttpRequestB3SpanContextExtractor();
}
