si.arnes.etabla.utils.DateUtils.java Source code

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Here is the source code for si.arnes.etabla.utils.DateUtils.java

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package si.arnes.etabla.utils;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import org.joda.time.DateTimeComparator;

/**
 *
 * @author klemen
 */
public class DateUtils {

    public static Date getTodaysDateMidnightTime() throws ParseException {
        //we want today's date with time part set to 00:00:00
        DateFormat formatter = new SimpleDateFormat("dd/MM/yyyy");
        Date todayWithZeroTime = formatter.parse(formatter.format(new Date()));
        return todayWithZeroTime;
    }

    /**
     * Returns current date plus days, hour rounded to full hours.
     *
     * @param day
     * @param hour
     * @return
     * @throws ParseException
     */
    public static Date getDateFullDaysHoursFromNow(int day, int hour) throws ParseException {
        final Calendar cal = Calendar.getInstance();
        cal.add(Calendar.DATE, day);
        cal.add(Calendar.HOUR, hour);
        cal.set(Calendar.MINUTE, 0);
        cal.set(Calendar.SECOND, 0);
        cal.set(Calendar.MILLISECOND, 0);
        return cal.getTime();
    }

    public static boolean durationDatesOrderValid(Date from, Date date) {
        return !date.before(from);
    }

    public static Integer getDayNumberFromDate(Date date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        return cal.get(Calendar.DAY_OF_WEEK);
    }

    /**
     *
     * Checks if from-to is colliding with from1-to1
     *
     * @param from1
     * @param to1
     * @param from
     * @param to
     * @return
     */
    public static boolean isTimePartColliding(Date from1, Date date1, Date from, Date to) {
        //yoda time-only comparator:
        DateTimeComparator comparator = DateTimeComparator.getTimeOnlyInstance();
        //from is between or to is between or from-to is "inside" [fromCurr, toCurr)
        return comparator.compare(from, from1) >= 0 && comparator.compare(from, date1) < 0
                || comparator.compare(to, from1) > 0 && comparator.compare(to, date1) <= 0
                || comparator.compare(from1, from) > 0 && comparator.compare(date1, to) < 0;
    }

    public static int getDayNumberInMonth(Date date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        return cal.get(Calendar.DAY_OF_MONTH);
    }

    /**
     * Returns hour string in format HH:MM
     * @param date
     * @return 
     */
    public static String getTime(Date date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        return String.format("%02d:%02d", cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE));
    }

    public static boolean isSameDay(Date date1, Date date2) {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date1);
        Calendar cal2 = Calendar.getInstance();
        cal2.setTime(date2);
        if (cal.get(Calendar.YEAR) == cal2.get(Calendar.YEAR) && cal.get(Calendar.MONTH) == cal2.get(Calendar.MONTH)
                && cal.get(Calendar.DAY_OF_MONTH) == cal2.get(Calendar.DAY_OF_MONTH)) {
            return true;
        } else {
            return false;
        }
    }

    public static int isHourBeforeComparator(Date date1, Date date2) {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date1);
        Calendar cal2 = Calendar.getInstance();
        cal2.setTime(date2);
        if (cal.get(Calendar.HOUR) < cal2.get(Calendar.HOUR)) {
            return 1;
        }
        if ((cal.get(Calendar.HOUR) == cal2.get(Calendar.HOUR))
                && (cal.get(Calendar.MINUTE) < cal2.get(Calendar.MINUTE))) {
            return 1;
        }
        if ((cal.get(Calendar.HOUR) == cal2.get(Calendar.HOUR))
                && (cal.get(Calendar.MINUTE) == cal2.get(Calendar.MINUTE))) {
            return 0;
        }
        return -1;
    }

    /**
     * 1.1 has value of 1
     * @param date
     * @return 
     */
    public static int getDayOfTheYear(Date date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        return cal.get(Calendar.DAY_OF_YEAR);
    }

    public static int getHour(Date date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        return cal.get(Calendar.HOUR_OF_DAY);
    }

    public static int getMinute(Date date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        return cal.get(Calendar.MINUTE);
    }

    /**
    * Returns day of the Week
    * Monday=0 Sunday=6
    */
    public static int getDayOfTheWeek(Date date) {

        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        return cal.get(Calendar.DAY_OF_WEEK) - 1;
    }

    public static Date setDafaultDate(Date date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        cal.set(2017, 1, 1, cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE));
        return cal.getTime();
    }

    /**
     * January=0 December= 11
     * @param date
     * @return 
     */
    public static int getMonth(Date date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        return cal.get(Calendar.MONTH);
    }

    public static Date setHourAndMinutes(Date date, int hour, int minute) {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        cal.set(Calendar.HOUR_OF_DAY, hour);
        cal.set(Calendar.MINUTE, minute);
        return cal.getTime();
    }
}