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README
Apache-2.0

ConcurrentLatch

ConcurrentLatch是一个基于JDK的多线程归类并发处理闩工具

ConcurrentLatch使用场景

当你有5个无相关性操作,顺序执行那么消耗时间合将达到5个操作的所有操作时间和,如果开启多线程,那么又不能保证这5个操作都进行完毕才能进行后续操作,那么基于刚才说的场景ConcurrentLatch就是用来解决这个问题的,考虑到系统不能无限制的增加线程,所以ConcurrentLatch又增加了线程池管理器的概念,防止系统因为线程开启过多而宕机。

git地址

https://gitee.com/zxporz/ConcurrentLatch.git

https://gitee.com/zxporz/ConcurrentLatch/blob/master/README.md

使用ConcurrentLatch

ConcurrentLatch不依赖任何三方jar包

编写你需要并发处理的业务类以及返回对象

/**添加这个类运行的任务名,注意这个名字在一次线程池运行中不可重复*/
/**也可以不配置注解,写一个名为TASKNAME的字符串成员变量也可行*/
@LatchTaskName("rule")
/**需实现LatchThread接口,并将业务代码写入handle方法,否则会抛出异常*/
public class RuleLatch implements  LatchThread {
    RuleDto dto = null;
    /**通过构造方法传递入参*/
    public RuleLatch(RuleDto args){
        dto = args;
    }
    /**你的业务处理*/
    public RuleDto handle() {
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        dto.setMmmm(dto.getMmmm()+ 9999);
        return dto;
    }
}
/**添加这个类运行的任务名,注意这个名字在一次线程池运行中不可重复*/
/**也可以不配置注解,写一个名为TASKNAME的字符串成员变量也可行*/
/**这个配置的注解值必须和对应的LatchThread一致,否则会抛出异常*/
@LatchTaskName("rule")
public class RuleDto {
……
}

编写调用

/**创建一个ConcurrentLatch执行器*/
ConcurrentLatchExcutor excutor = new ConcurrentLatchExcutor();
/**组织需要并发的业(任)务(务)类对象*/
LatchThread platformLatchThread = new PlatformLatch();//业务类A
RuleDto ruleDto = new RuleDto();
ruleDto.setRuleID("zxp123");
ruleDto.setMmmm(0.00001);
LatchThread ruleLatchThread = new RuleLatch(ruleDto);//业务类B
/**将任务推入ConcurrentLatch执行器*/
excutor.put(platformLatchThread);
excutor.put(ruleLatchThread);
/**通知ConcurrentLatch执行器开始执行所有推入的任务*/
/**这里会阻塞,直到所有任务都执行完毕*/
Map<String, Object> map = excutor.excute();
/**获取返回值*/
/**这里的key就是上面在注解(LatchTaskName)或者TASKNAME配置的值,能轻松的获取所有的返回对象*/
for (String key : map.keySet()) {
    Object out = map.get(key);
}

配置说明

可根据服务器的性能情况设置线程峰值(详见org.zxp.ConcurrentLatch.Constants)

/**单个线程池线程最大容量*/
CURRENT_MAX_POOL_COUNT = 4;
/**线程池最大数量*/
int MAX_EXCUTOR_COUNT = 3;

关键逻辑说明

ConcurrentLatchExcutor中调用了线程池管理器来获取线程池

通过Future获取线程执行返回对象

LatchExcutorBlockingQueueManager线程池管理器中通过阻塞队列来监控线程池的使用情况

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简介

ConcurrentLatch是一个基于JDK的多线程归类并发处理闩工具 展开 收起
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