在Jenkins中以给定的时间重复运行Java代码 [英] Running a java code repeatedly for a given duration in Jenkins

问题描述

我想在一定时间内运行Java代码，比如说16个小时！我有一个可以运行大约一个小时的Java代码，我希望它可以重复运行16小时.因此，我有一个用户通过Jenkins传递的参数！我使用

I want to run java code for a certain duration ,say 16 hours! I have a java code that runs for approximately an hour.I want this to run repeatedly for 16 hours. So I have a parameter that is passed by the user through Jenkins ! I access this value using

System.getenv("Duration");

现在，我想在指定时间后退出执行.因此，假设用户选择了16，脚本应运行16个小时，然后退出.

Now, I want to exit the execution after the specified time. So suppose the user selected 16, the script should run for 16 hours and then exit.

接受Jenkins用户的输入，如图所示

我看到了其他一些问题，但是大多数问题都在处理计时器几秒钟或几分钟.我需要一个有效的解决方案.谢谢:)

I saw some other questions, but most of them were dealing with timers for either few seconds or few minutes. I need an efficient solution. Thanks :)

FYI-环境-Jenkins + TestNG + Maven + Java

FYI - Environment - Jenkins+TestNG+Maven+Java

long start = System.currentTimeMillis();
long end = start + durationInHours*60*60*1000; 

while (System.currentTimeMillis() < end)
{
    //My code here runs for  approx. 50 mins!
}

现在假设用户选择值3小时，我希望3小时后退出while循环.但这并没有发生，因为在检查while条件时还没有完成3小时，因此即使进入了第4次时间(因为经过的时间为150分钟且少于180分钟)，它也进入了while条件，它在3小时10分钟后结束了.

Now suppose the user chooses the value 3 hours, I want the while loop to exit after 3 hours. But this does not happen as it has not yet completed 3 hours when checking the while condition.So it enters the while condition even the 4th time(since time elapsed is 150 mins which is less than 180 mins) it ends after 3 hours ten mins.

如何使其在到达180分钟后退出while循环?

How to make it exit the while loop as soon as 180 mins is reached ?

P.S-我可以先做数学运算((迭代= durationFromUser/codeDuration)，然后运行for循环，但是我不想这样做，因为我的脚本长度可能会有所不同.

P.S - I could do the math first,( iterations =durationFromUser/codeDuration) and then run a for loop, but I don't want to do this as my script length may vary.

boolean alive = true;
Timer timer = new Timer();

@Test() //Annotation from TestNG
public void public void jenkinsEntryPoint()
{
    String duration = System.getenv("Duration");
    int durationInHours=Integer.parseInt(duration);
     long end = System.currentTimeMillis() + durationInHours*60*60*1000;
 TimerTask task = new TimerTask() {
     public void run() {
        alive = false;
     };

 timer.schedule(task, end);
 while (alive) {
     //My code here runs for  approx. 50 mins!
     function1();
 }

}

void function1() {
  function2();
}

private void function2() {
 for(i=0;i<8;i++)
 {
  while(alive)
  {

    //long running code
    sleep(1000);
    //Some more code
    sleep(2000);
    //Some more code
    //Suppose time elapses here, I want it to quit
    //But its continuing to execute
    .
    . 
    .
    .

  }
 }
}

推荐答案

我尝试了ScheduledThreadPoolExecutor，它起作用了！

I tried ScheduledThreadPoolExecutor and it worked!

ScheduledThreadPoolExecutor exec = new ScheduledThreadPoolExecutor(1);
exec.scheduleAtFixedRate(new Runnable() {
           public void run() {
               System.out.println("Time's Up According To ScheduledThreadPool");
               alive = false;
           }
       }, durationInHours, 1, TimeUnit.HOURS); 

此功能将在"durationInHours"之后执行.

This function will be executed after "durationInHours".

感谢@TedBigham:)

Thanks @TedBigham :)

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