Question

I’ve a main program which performs some task in Java. I want to run it as a batch job & due to our policies, I’m not allowed to use crontab where I can configure it.

What’s the alternate option for me? How can I schedule my Java program to run once a day??

Any sample wrapper code will be helpful!

Thanks!

Answer 1

I’m not sure you want to schedule your job in Java or Bash. If you try to implement in Java, you can try to create a Thread for your job, and let the thread sleep for a period:

class repeatTask extends Thread
{
    int repeatTime;

    public repeatTask(int repeatTime)
    {
        this.repeatTime = repeatTime;
    }

    public void run()
    {
        while(true)
        {
            try {
                Thread.sleep(repeatTime);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            /* Some action codes here*/
        }
    }
}

And also you can use Timer class, which could also let you create a thread:

public void start()
{
    timerSchedule();            
}

public void timerSchedule()
{
    Timer timer = new Timer();

    timer.schedule(new TimerTask() {
        public void run() {
            /*Action codes here*/
        }
    }, /*Repeat Time here*/);
}