org.springframework.cloud.sleuth

Interface SpanInjector<T>

All Known Subinterfaces:

HttpSpanInjector, MessagingSpanTextMapInjector

All Known Implementing Classes:

HeaderBasedMessagingInjector, ZipkinHttpSpanInjector

public interface SpanInjector<T>

Adopted from OpenTracing

Since:

1.0.0

Author:

Marcin Grzejszczak

Method Summary

Modifier and Type	Method and Description
void	inject(Span span, T carrier) Takes two arguments: a Span instance, and a “carrier” object in which to inject that Span for cross-process propagation.

Method Detail

inject

void inject(Span span,
            T carrier)

Takes two arguments:

• a Span instance, and
• a “carrier” object in which to inject that Span for cross-process propagation.

A “carrier” object is some sort of http or rpc envelope, for example HeaderGroup (from Apache HttpComponents). Attempting to inject to a carrier that has been registered/configured to this Tracer will result in a IllegalStateException.