Subversion Repositories SmartDukaan

package in.shop2020.catalog.util;

import java.util.Calendar;

import java.util.concurrent.Executors;

import java.util.concurrent.ScheduledExecutorService;

import java.util.concurrent.TimeUnit;

import javax.servlet.ServletContextEvent;

import javax.servlet.ServletContextListener;

public class ReportSenderScheduler implements ServletContextListener {

	private ScheduledExecutorService scheduler;

	@Override

	public void contextDestroyed(ServletContextEvent arg0) {

		scheduler.shutdownNow();

	}

	@Override

	public void contextInitialized(ServletContextEvent arg0) {

		Calendar calendarNow = Calendar.getInstance();

		Calendar calendarScheduled = Calendar.getInstance();

		int diff = Calendar.MONDAY - calendarNow.get(Calendar.DAY_OF_WEEK);

		if (!(diff > 0)) {

			diff += 7;

		}

		calendarScheduled.add(Calendar.DAY_OF_MONTH, diff);

		calendarScheduled.set(Calendar.HOUR, 6);

		calendarScheduled.set(Calendar.MINUTE, 0);

		calendarScheduled.set(Calendar.AM_PM, Calendar.AM);

		scheduler = Executors.newSingleThreadScheduledExecutor();

		//Scheduled to run on every Monday 6am.

		scheduler.scheduleAtFixedRate(new ReportSender(), calendarScheduled.getTimeInMillis() - calendarNow.getTimeInMillis(), 7 * 86400*1000,

				TimeUnit.MILLISECONDS);

	}

}