com.spring.boxes.dollar.support.throttle

类 Throttling

java.lang.Object

com.spring.boxes.dollar.support.throttle.Throttling

public class Throttling
extends Object

Throttling(限制并发线程数)同RateLimiter(每秒许可请求数)的区别 RateLimiter为1s的请求限流数据，如果单机1000个qps限制，接口单词响应时间为200m。 单线程1s可以执行5个请求，1000qps，需要20个线程执行完。这里的Throttling的阈值就是20

方法概要

限定符和类型	方法和说明
static <T> com.google.common.util.concurrent.ListenableFuture<T>	asyncSupplyWithThrottling(ThrottlingKey throttlingKey, Supplier<com.google.common.util.concurrent.ListenableFuture<T>> result)
static <T> com.google.common.util.concurrent.ListenableFuture<T>	asyncSupplyWithThrottling(ThrottlingKey throttlingKey, Supplier<com.google.common.util.concurrent.ListenableFuture<T>> result, Supplier<T> onThrottledResult)
int	getCurrentConcurrency()
ThrottlingKey	getThrottlingKey()
int	leave() 离开限流方法
static Throttling	of(ThrottlingKey throttlingKey) 获取指定Throttling
static <T,X extends Throwable> T	supplyWithThrottling(ThrottlingKey throttlingKey, ThrowableSupplier<? extends T,X> result)
static <T,X extends Throwable> T	supplyWithThrottling(ThrottlingKey throttlingKey, ThrowableSupplier<? extends T,X> result, Supplier<? extends T> onThrottledResult)
boolean	tryEnter() 尝试进入一个限流方法

从类继承的方法 java.lang.Object

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

方法详细资料

supplyWithThrottling

public static <T,X extends Throwable> T supplyWithThrottling(ThrottlingKey throttlingKey,
                                                             ThrowableSupplier<? extends T,X> result)
                                                      throws X extends Throwable

抛出:

X extends Throwable

supplyWithThrottling

public static <T,X extends Throwable> T supplyWithThrottling(ThrottlingKey throttlingKey,
                                                             ThrowableSupplier<? extends T,X> result,
                                                             Supplier<? extends T> onThrottledResult)
                                                      throws X extends Throwable

抛出:

X extends Throwable

asyncSupplyWithThrottling

public static <T> com.google.common.util.concurrent.ListenableFuture<T> asyncSupplyWithThrottling(ThrottlingKey throttlingKey,
                                                                                                  Supplier<com.google.common.util.concurrent.ListenableFuture<T>> result)

asyncSupplyWithThrottling

public static <T> com.google.common.util.concurrent.ListenableFuture<T> asyncSupplyWithThrottling(ThrottlingKey throttlingKey,
                                                                                                  Supplier<com.google.common.util.concurrent.ListenableFuture<T>> result,
                                                                                                  Supplier<T> onThrottledResult)

getThrottlingKey

public ThrottlingKey getThrottlingKey()

getCurrentConcurrency

public int getCurrentConcurrency()

of

public static Throttling of(ThrottlingKey throttlingKey)

获取指定Throttling

tryEnter

public boolean tryEnter()

尝试进入一个限流方法

返回:

true表示进入成功, false表示超过限流了

leave

public int leave()

离开限流方法

返回:

离开后的并发数