com.vip.vjtools.vjkit.concurrent.limiter

Class RateLimiterUtil

java.lang.Object

com.vip.vjtools.vjkit.concurrent.limiter.RateLimiterUtil

public class RateLimiterUtil
extends Object

Constructor Summary

Constructors

Constructor and Description
RateLimiterUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static com.google.common.util.concurrent.RateLimiter	create(double permitsPerSecond, double maxBurstSeconds) 一个用来定制RateLimiter的方法，默认一开始就桶里就装满token。
static com.google.common.util.concurrent.RateLimiter	create(double permitsPerSecond, double maxBurstSeconds, boolean filledWithToken) 一个用来定制RateLimiter的方法。

Methods inherited from class java.lang.Object

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

Constructor Detail

RateLimiterUtil

public RateLimiterUtil()

Method Detail

create

public static com.google.common.util.concurrent.RateLimiter create(double permitsPerSecond,
                                                   double maxBurstSeconds)
                                                            throws ReflectiveOperationException

一个用来定制RateLimiter的方法，默认一开始就桶里就装满token。

Parameters:

permitsPerSecond - 每秒允许的请求数，可看成QPS。

maxBurstSeconds - 可看成桶的容量，Guava中最大的突发流量缓冲时间，默认是1s, permitsPerSecond * maxBurstSeconds，就是闲置时累积的缓冲token最大值。

Throws:

ReflectiveOperationException

create

public static com.google.common.util.concurrent.RateLimiter create(double permitsPerSecond,
                                                   double maxBurstSeconds,
                                                   boolean filledWithToken)
                                                            throws ReflectiveOperationException

一个用来定制RateLimiter的方法。

Parameters:

permitsPerSecond - 每秒允许的请求书，可看成QPS

maxBurstSeconds - 最大的突发缓冲时间。用来应对突发流量。Guava的实现默认是1s。permitsPerSecond * maxBurstSeconds的数量，就是闲置时预留的缓冲token数量

filledWithToken - 是否需要创建时就保留有permitsPerSecond * maxBurstSeconds的token

Throws:

ReflectiveOperationException