Package io.honeycomb.beeline.tracing

Class SpanPostProcessor

java.lang.Object

io.honeycomb.beeline.tracing.SpanPostProcessor

public class SpanPostProcessor
extends Object

This applies post processing to Spans that are ready to be sent. Namely, it can apply the samplerHook and convert Spans into Events that can be submitted to Honeycomb.

Thread-safety

Instances of this class are thread-safe and can be shared.

Constructor Summary

Constructors

Constructor	Description
SpanPostProcessor(io.honeycomb.libhoney.HoneyClient client, TraceSampler<? super Span> samplerHook)

Method Summary

Modifier and Type	Method	Description
io.honeycomb.libhoney.Event	generateEvent(Span span)	Generates an Event with required tracing fields that are required for Honeycomb to recognise an Event as a Span.
int	runSamplerHook(Span span)	Applies the sampler hook to the contents of the Span and decides whether to sample it.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SpanPostProcessor

public SpanPostProcessor(io.honeycomb.libhoney.HoneyClient client,
                         TraceSampler<? super Span> samplerHook)

Method Detail

runSamplerHook

public int runSamplerHook(Span span)

Applies the sampler hook to the contents of the Span and decides whether to sample it. If the return value is 0, then it should not be sampled. If positive then it should be sampled, and the concrete value represents the sample rate.

Parameters:

span - to pass to the sampler hook.

Returns:

sampling result.

generateEvent

public io.honeycomb.libhoney.Event generateEvent(Span span)

Generates an Event with required tracing fields that are required for Honeycomb to recognise an Event as a Span.

Parameters:

span - to convert to an Event.

Returns:

the generated Event.