com.alipay.common.tracer.core.samplers

类 SofaTracerPercentageBasedSampler

java.lang.Object

com.alipay.common.tracer.core.samplers.SofaTracerPercentageBasedSampler

所有已实现的接口:

Sampler

public class SofaTracerPercentageBasedSampler
extends Object
implements Sampler

SofaTracerPercentageBasedSampler

从以下版本开始:

2017/06/19

作者:

yangguanchao

构造器概要

构造器

构造器和说明
SofaTracerPercentageBasedSampler(SamplerProperties configuration)

方法概要

方法

限定符和类型	方法和说明
void	close() Release any resources used by the sampler.
String	getType()
static BitSet	randomBitSet(int size, int cardinality, Random rnd) Reservoir sampling algorithm borrowed from Stack Overflow.
SamplingStatus	sample(String operation, String traceId)

从类继承的方法 java.lang.Object

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

构造器详细资料

SofaTracerPercentageBasedSampler

public SofaTracerPercentageBasedSampler(SamplerProperties configuration)

方法详细资料

sample

public SamplingStatus sample(String operation,
                    String traceId)

指定者:

sample 在接口中 Sampler

参数:

operation - The operation name set on the span

traceId - The traceId on the span

返回:

whether or not the new trace should be sampled

getType

public String getType()

指定者:

getType 在接口中 Sampler

close

public void close()

从接口复制的说明: Sampler

Release any resources used by the sampler.

指定者:

close 在接口中 Sampler

randomBitSet

public static BitSet randomBitSet(int size,
                  int cardinality,
                  Random rnd)

Reservoir sampling algorithm borrowed from Stack Overflow.

http://stackoverflow.com/questions/12817946/generate-a-random-bitset-with-n-1s

参数:

size - 大小

cardinality - 基数

rnd - 随机种子

返回:

BitSet