Module brave

Package brave.sampler

Class ParameterizedSampler<P>

java.lang.Object

brave.sampler.ParameterizedSampler<P>

Type Parameters:

P - The type that encloses parameters associated with a sample rate. For example, this could be a pair of http and method..

public final class ParameterizedSampler<P>
extends java.lang.Object

This is an implementation of how to decide whether to trace a request using ordered rules. For example, you could write rules to look at an HTTP method and path, or a RabbitMQ routing key and queue name.

This looks at runtime parameters to see if they match a rule. If all calls to a java method should have the same sample rate, consider DeclarativeSampler instead.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ParameterizedSampler.Rule<P>

Method Summary

Modifier and Type	Method	Description
static <P> ParameterizedSampler<P>	create(java.util.List<? extends ParameterizedSampler.Rule<P>> rules)
SamplingFlags	sample(P parameters)

Methods inherited from class java.lang.Object

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

Method Detail

create

public static <P> ParameterizedSampler<P> create(java.util.List<? extends ParameterizedSampler.Rule<P>> rules)

sample

public SamplingFlags sample(@Nullable
                            P parameters)