/* Generated by Together */

package XMLReport.common;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Calendar;
import java.text.ParseException;

public class JulianDate {
    // number of milliseconds in a day
    static final long mSecDay = 1000 * 60 * 60 * 24;
    // Days after 1/1/1970 to 1/1/0001
    static final long dayZero = -719164;
	static SimpleDateFormat dateFormat = new SimpleDateFormat("MM/dd/yyyy");

    /** Convert a julian date number to a date string of the format "MM/dd/yyyy" */
    public static String formatJulDate(int julDate) {
        SimpleDateFormat dateFormat = new SimpleDateFormat("MM/dd/yyyy");
        //int iJulDate = (new Double(julDate)).intValue();
        Date date = new Date((julDate + dayZero) * mSecDay);
        return dateFormat.format(date);
    } //formatJulDate

	/** Convert a date string of the format "MM/dd/yyyy" to a julian date number */
    public static long createJulDate(String dateString) {
        long julDate = 0;
        try {
			Date date = dateFormat.parse(dateString);
			julDate = 1 - dayZero + date.getTime() / mSecDay;
        }
        catch(ParseException e) {
            System.out.println("Problem parsing date: " + dateString);
            e.printStackTrace();
        }
        return julDate;
    }


    public Object getDate(double year, double month, double day, String format) {
        // Date(int, int, int) has been deprecated, so use Calendar to
        // set the year, month, and day.
        Calendar c = Calendar.getInstance();
        // Convert each argument to int.
        c.set((int)year, (int)month, (int)day);
        // create formatter
        SimpleDateFormat dateFormat = new SimpleDateFormat(format);
        // perform formatting	
        return dateFormat.format(c.getTime());
    }

    public static void main(String[] args) {
        String retVal;
        try {
            SimpleDateFormat julianDate1 = new SimpleDateFormat("yyyyMMdd");
            Date date = julianDate1.parse("19700101");
            Calendar cal1 = Calendar.getInstance();
            cal1.setTime(date);
            retVal = julianDate1.format(date);
            System.out.println("Date : " + retVal);
            System.out.println("1/1/1970: " + (date.getTime() / mSecDay + 719165));
            System.out.println("Today: " + (new Date().getTime() / mSecDay + 719165));
            Date date2 = julianDate1.parse("00010101");
            System.out.println("01/01/0001 = " + date2.getTime() / mSecDay);
            Date date3 = new Date((730091 - 719164) * mSecDay);
            System.out.println("Seconds per day = " + mSecDay);
            System.out.println("730091 = " + julianDate1.format(date3));
            //System.out.println("formatJulDate(730091) = " + new JulianDate().formatJulDate(730091));
        }
        catch (Exception e) { System.out.println("Error : " + e); }
    } //main
}