doubt about timer service

[Leonardo K. Shikida]

Hi

I'd like to start a calendar scheduled job for 1 minute from now.

I was trying to assemble a cron expression like this, but instead, it's
generating
a lot of jobs (really)

looks like something really stupid

The code is as simple as this

import java.util.Calendar;
import java.util.GregorianCalendar;

import javax.annotation.PostConstruct;
import javax.annotation.Resource;
import javax.ejb.ScheduleExpression;
import javax.ejb.Singleton;
import javax.ejb.Startup;
import javax.ejb.Timeout;
import javax.ejb.Timer;
import javax.ejb.TimerService;

@Singleton
@Startup
public class TimerEJB {

    @Resource
    private TimerService    timerService;

    @Timeout
    public void executeTimer(Timer timer) {
        System.out.println(timer);
    }

    private String toString(ScheduleExpression schedule) {
        return "MyScheduleExpression [getDayOfMonth()=" +
schedule.getDayOfMonth()
                + ", getDayOfWeek()=" + schedule.getDayOfWeek()
                + ", getEnd()=" + schedule.getEnd()
                + ", getHour()=" + schedule.getHour()
                + ", getMinute()=" + schedule.getMinute()
                + ", getMonth()=" + schedule.getMonth()
                + ", getSecond()=" + schedule.getSecond()
                + ", getStart()=" + schedule.getStart()
                + ", getYear()=" + schedule.getYear()
                + ", getTimezone()=" + schedule.getTimezone() + "]";
    }

    @PostConstruct
    public void create() {

        Calendar future = new GregorianCalendar();
        future.setTimeInMillis(System.currentTimeMillis() + 60000);

        int dayOfWeek = future.get(Calendar.DAY_OF_WEEK);
        String dayOfWeekName = null;

        switch (dayOfWeek) {
            case Calendar.MONDAY:
                dayOfWeekName = "Mon";
                break;
            case Calendar.TUESDAY:
                dayOfWeekName = "Tue";
                break;
            case Calendar.WEDNESDAY:
                dayOfWeekName = "Wed";
                break;
            case Calendar.THURSDAY:
                dayOfWeekName = "Thu";
                break;
            case Calendar.FRIDAY:
                dayOfWeekName = "Fri";
                break;
            case Calendar.SATURDAY:
                dayOfWeekName = "Sat";
                break;
            case Calendar.SUNDAY:
                dayOfWeekName = "Sun";
                break;
        }

        String cronExp = String.format("%1$s %2$s %3$s %4$s %5$s %6$s %7$s",
                future.get(Calendar.SECOND),
                future.get(Calendar.MINUTE),
                future.get(Calendar.HOUR_OF_DAY),
                dayOfWeekName,
                future.get(Calendar.DAY_OF_MONTH),
                future.get(Calendar.MONTH) + 1,
                future.get(Calendar.YEAR));

        String[] cron = cronExp.split(" ");
        String[] ss = new String[7];
        for (int i = 0; i < cron.length; i++) {
            ss[i] = cron[i];
        }

        ScheduleExpression exp = new ScheduleExpression();
        exp.second(0);
        exp.minute(ss[1]);
        exp.hour(ss[2]);
        exp.dayOfWeek(ss[3]);
        exp.dayOfMonth(ss[4]);
        exp.month(ss[5]);
        exp.year(ss[6]);

        System.out.println(toString(exp));

        Timer t = this.timerService.createCalendarTimer(exp);

        System.out.println("Created "+t);
    }

}

output for this looks like this

MyScheduleExpression [getDayOfMonth()=28, getDayOfWeek()=Sat,
getEnd()=null, getHour()=16, getMinute()=53, getMonth()=12, getSecond()=0,
getStart()=null, getYear()=2013, getTimezone()=null]

Created org.apache.openejb.core.timer.TimerImpl@298a0c11

an after some seconds

org.apache.openejb.core.timer.TimerImpl@5f1e961a
org.apache.openejb.core.timer.TimerImpl@5f1e961a
org.apache.openejb.core.timer.TimerImpl@5f1e961a
org.apache.openejb.core.timer.TimerImpl@5f1e961a
org.apache.openejb.core.timer.TimerImpl@5f1e961a
org.apache.openejb.core.timer.TimerImpl@5f1e961a
org.apache.openejb.core.timer.TimerImpl@5f1e961a...

any help is welcome

TIA

Leo