/**
* awaitAdvance方法：如果传入的参数和当前的phase相等，线程就阻塞住等待phase的值增加；否则就立即返回
*/
public class PhaserTest2 {
private static Random random = new Random(System.currentTimeMillis());
public static void main(String[] args) throws InterruptedException {
Phaser phaser = new Phaser(5);
for (int i = 1; i <= 4; i++) {
new AwaitAdvanceTask(i, phaser).start();
}
int i = phaser.awaitAdvance(phaser.getPhase());
System.out.println("i = "+i);
}
static class AwaitAdvanceTask extends Thread {
private int no;
private Phaser phaser;
AwaitAdvanceTask(int no, Phaser phaser) {
this.no = no;
this.phaser = phaser;
}
@Override
public void run() {
try {
Thread.sleep(random.nextInt(5000));
System.out.println(no + " has worked done");
phaser.arriveAndAwaitAdvance();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
/**
* 模拟铁人三项运动
*/
public class PhaserTest {
private static Random random = new Random(System.currentTimeMillis());
public static void main(String[] args) {
Phaser phaser = new Phaser(5);
for (int i = 1; i < 5; i++) {
new Sportsman(i, phaser).start();
}
new InjuredSportsman(5, phaser).start();
}
static class InjuredSportsman extends Thread {
private int no;
private Phaser phaser;
InjuredSportsman(int no, Phaser phaser) {
this.no = no;
this.phaser = phaser;
}
@Override
public void run() {
try {
sport(no, phaser, " starts running ", " ends running ");
sport(no, phaser, " starts bicycle ", " ends bicycle");
System.out.println("I'm injured , i will be exit");
phaser.arriveAndDeregister();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
static class Sportsman extends Thread {
private int no;
private Phaser phaser;
Sportsman(int no, Phaser phaser) {
this.no = no;
this.phaser = phaser;
}
@Override
public void run() {
try {
sport(no, phaser, " starts running ", " ends running ");
sport(no, phaser, " starts bicycle ", " ends bicycle");
sport(no, phaser, " starts long jump ", " ends long jump ");
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
private static void sport(int no, Phaser phaser, String s, String s2) throws InterruptedException {
System.out.println(no + s);
Thread.sleep(random.nextInt(5000));
System.out.println(no + s2);
phaser.arriveAndAwaitAdvance();
}
}
