Phaser的使用

╰+哭是因爲堅強的太久メ 2022-12-30 10:56 166阅读 0赞

分阶段进行，按照一定的流程执行，比如举行婚礼1、新郎新娘入场2、其它宾客入场3、所有人开始吃饭4、所有人离场5 新郎新娘洞房

import java.util.concurrent.Phaser;
    import java.util.concurrent.TimeUnit;
    
    public class PhaserTest {
        
        static MarriagePhaser phaser = new MarriagePhaser();
    
    
        static void milliSleep(int milli) {
            try {
                TimeUnit.MILLISECONDS.sleep(milli);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    
        public static void main(String[] args) {
    
            phaser.bulkRegister(7);
    
            for(int i=0; i<5; i++) {
    
                new Thread(new Person("p" + i)).start();
            }
    
            new Thread(new Person("新郎")).start();
            new Thread(new Person("新娘")).start();
    
        }
    
    
    
        static class MarriagePhaser extends Phaser {
            @Override
            protected boolean onAdvance(int phase, int registeredParties) {
    
                switch (phase) {
                    case 0:
                        System.out.println("所有人到齐了！" + registeredParties);
                        System.out.println();
                        return false;
                    case 1:
                        System.out.println("所有人吃完了！" + registeredParties);
                        System.out.println();
                        return false;
                    case 2:
                        System.out.println("所有人离开了！" + registeredParties);
                        System.out.println();
                        return false;
                    case 3:
                        System.out.println("婚礼结束！新郎新娘抱抱！" + registeredParties);
                        return true;
                    default:
                        return true;
                }
            }
        }
    
    
        static class Person implements Runnable {
            String name;
    
            public Person(String name) {
                this.name = name;
            }
    
            public void arrive() {
    
                milliSleep(1000);
                System.out.printf("%s 到达现场！\n", name);
                phaser.arriveAndAwaitAdvance();
            }
    
            public void eat() {
                milliSleep(1000);
                System.out.printf("%s 吃完!\n", name);
                phaser.arriveAndAwaitAdvance();
            }
    
            public void leave() {
                milliSleep(1000);
                System.out.printf("%s 离开！\n", name);
    
    
                phaser.arriveAndAwaitAdvance();
            }
    
            private void hug() {
                if(name.equals("新郎") || name.equals("新娘")) {
                    milliSleep(1000);
                    System.out.printf("%s 洞房！\n", name);
                    phaser.arriveAndAwaitAdvance();
                } else {
                    phaser.arriveAndDeregister();
                    //phaser.register()
                }
            }
    
            @Override
            public void run() {
                arrive();
    
    
                eat();
    
    
                leave();
    
    
                hug();
    
            }
        }
    }