Maven依赖
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<dependency> <groupId>com.google.guava</groupId> <artifactId>guava</artifactId> <version>31.0.1-jre</version></dependency> |
代码
不废话上代码。
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package com.huyi.csdn.tools; import cn.hutool.core.thread.ThreadUtil;import com.google.common.util.concurrent.Monitor;import org.springframework.scheduling.concurrent.CustomizableThreadFactory; import java.util.concurrent.ExecutorService;import java.util.concurrent.Executors;import java.util.function.Function; /** * @Program: csdn @ClassName: MonitorRunner @Author: huyi @Date: 2021-10-30 15:22 @Description: * 监视器Runner @Version: V1.0 */public class MonitorRunner<T> implements Runnable { private T param; private Function<T, Boolean> condition; private Runnable runnable; private Monitor monitor; /** * 构造函数 * * @param param 判断参数 * @param condition 判定函数 * @param runnable 执行内容 */ public MonitorRunner(T param, Function<T, Boolean> condition, Runnable runnable) { this.param = param; this.condition = condition; this.runnable = runnable; monitor = new Monitor(); } @Override public void run() { System.out.println("线程开始"); Monitor.Guard guard = new Monitor.Guard(monitor) { @Override public boolean isSatisfied() { return condition.apply(param); } }; while (true) { if (monitor.enterIf(guard)) { try { runnable.run(); } finally { monitor.leave(); break; } } else { continue; } } } public T getParam() { return param; } public MonitorRunner<T> setParam(T param) { this.param = param; return this; } public static void main(String[] args) { ExecutorService executorService = Executors.newFixedThreadPool(10, new CustomizableThreadFactory("MONITOR-")); MonitorRunner<Integer> monitorRunner = new MonitorRunner<>( 0, x -> x > 10, () -> { // todo 线程需要执行的内容 System.out.println("今天天气真好"); }); executorService.submit(monitorRunner); while (monitorRunner.getParam() <= 10) { monitorRunner.setParam(monitorRunner.getParam() + 1); ThreadUtil.sleep(1000L); System.out.println("当前Param的值:" + monitorRunner.getParam()); } ThreadUtil.sleep(5000L); executorService.shutdown(); }} |
代码说明
主要在构造对象的时候需要传递泛型的校验对象，以及断言和需要执行的Runable。
执行结果
总结
没啥好总结的，看场景使用吧。
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原文链接：https://huyi-aliang.blog.csdn.net/article/details/121056404
