public global::OpenTracing.ISpanContext Extract(object carrier)
{
var map = carrier as ITextMap;
if (map == null)
{
throw new ArgumentException("Carrier should have type ITextMap", nameof(carrier));
}
IHeadersCollection headers = new TextMapHeadersCollection(map);
var propagationContext = B3SpanContextPropagator.Instance.Extract(headers);
return(new OpenTracingSpanContext(propagationContext));
}
public void Inject(global::OpenTracing.ISpanContext context, object carrier)
{
var map = carrier as ITextMap;
if (map == null)
{
throw new ArgumentException("Carrier should have type ITextMap", nameof(carrier));
}
IHeadersCollection headers = new TextMapHeadersCollection(map);
if (context is OpenTracingSpanContext otSpanContext && otSpanContext.Context is SpanContext spanContext)
{
// this is a SignalFx context
B3SpanContextPropagator.Instance.Inject(spanContext, headers);
}