cn.xnatural.app

Class LatchLock

java.lang.Object

cn.xnatural.app.LatchLock

public class LatchLock
extends Object

流量限制锁

Field Summary

Fields

Modifier and Type	Field and Description
protected AtomicInteger	latchSize 当前并发大小
protected int	limit 流量限制大小

Constructor Summary

Constructors

Constructor and Description
LatchLock()

Method Summary

Modifier and Type	Method and Description
int	getLatchSize() 当前已获取锁个数
LatchLock	limit(int limit) 设置限制
int	release() 释放一个锁 一般是 tryLock() 成功后 调一次
boolean	tryLock() 获取一个锁

Methods inherited from class java.lang.Object

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

Field Detail

limit

protected int limit

流量限制大小

latchSize

protected final AtomicInteger latchSize

当前并发大小

Constructor Detail

LatchLock

public LatchLock()

Method Detail

limit

public LatchLock limit(int limit)

设置限制

Parameters:

limit - >0

tryLock

public boolean tryLock()

获取一个锁

 final LatchLock lock = new LatchLock();
 lock.limit(3); // 设置并发限制. 默认为1
 if (lock.tryLock()) { // 尝试获取一个锁
     try {
         // 被执行的代码块
     } finally {
         lock.release(); // 释放一个锁
     }
 }
 

release

public int release()

释放一个锁 一般是 tryLock() 成功后 调一次

Returns:

释放后当前锁的个数

getLatchSize

public int getLatchSize()

当前已获取锁个数