brave.propagation

Interface TraceContext.Extractor<C>

Enclosing class:

TraceContext

public static interface TraceContext.Extractor<C>

Used to join an incoming trace. For example, by reading http headers.

See Also:

Tracer.joinSpan(brave.propagation.TraceContext)

Method Summary

Modifier and Type	Method and Description
TraceContextOrSamplingFlags	extract(C carrier) Returns either a trace context or sampling flags parsed from the carrier.

Method Detail

extract

TraceContextOrSamplingFlags extract(C carrier)

Returns either a trace context or sampling flags parsed from the carrier. If nothing was parsable, sampling flags will be set to SamplingFlags.EMPTY.

Parameters:

carrier - holds propagation fields. For example, an incoming message or http request.