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Library of usefull class to be used in any project.
/*
* #%L
* Nuiton Utils
*
* $Id: DateUtil.java 2446 2012-12-01 10:06:18Z jcouteau $
* $HeadURL: http://svn.nuiton.org/svn/nuiton-utils/tags/nuiton-utils-2.6.10/nuiton-utils/src/main/java/org/nuiton/util/DateUtil.java $
* %%
* Copyright (C) 2004 - 2010 CodeLutin
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Lesser Public License for more details.
*
* You should have received a copy of the GNU General Lesser Public
* License along with this program. If not, see
* .
* #L%
*/
package org.nuiton.util;
import java.text.DateFormat;
import java.text.DateFormatSymbols;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
/**
* Library for manipulating dates.
*
* Note:
*
* @author fdesbois
* @version $Id: DateUtil.java 2446 2012-12-01 10:06:18Z jcouteau $
* @since 1.4.1
*/
public class DateUtil {
public static final String DEFAULT_PATTERN = "dd/MM/yyyy";
public static final String MONTH_PATTERN = "MM/yyyy";
/**
* Format a date using the pattern in argument. The pattern is the same using
* for DateFormat object.
*
* @param date the date to format
* @param pattern the pattern to use
* @return a String corresponding to the date formatted
* @see DateFormat
*/
public static String formatDate(Date date, String pattern) {
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(pattern);
return simpleDateFormat.format(date);
}
public static String formatDate(Date date, String pattern, Locale locale) {
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(pattern, locale);
return simpleDateFormat.format(date);
}
/**
* Parse a date using the pattern in argument. The pattern is the same using
* for DateFormat object.
*
* @param date the String to parse
* @param pattern the pattern to use
* @return a Date corresponding to the String argument parsed
* @throws ParseException for parsing errors
* @see DateFormat
*/
public static Date parseDate(String date, String pattern) throws ParseException {
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(pattern);
Date result = simpleDateFormat.parse(date);
return result;
}
/**
* Create a new date from day, month and year (French version).
* The month is the real month of the year and not the one which is stored
* in Calendar object.
*
* @param s value of the seconds 1-60
* @param m value of the minutes 1-60
* @param h value of the hours 1-24
* @param dd value of the day 1-31
* @param mm value of the month 1-12
* @param yy value of the year 0-9999
* @return a new date
*/
public static Date createDate(int s, int m, int h, int dd, int mm, int yy) {
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(0L);
calendar.set(Calendar.YEAR, yy);
calendar.set(Calendar.MONTH, mm - 1);
calendar.set(Calendar.DAY_OF_MONTH, dd);
calendar.set(Calendar.HOUR_OF_DAY, h);
calendar.set(Calendar.MINUTE, m);
calendar.set(Calendar.SECOND, s);
return calendar.getTime();
}
/**
* Create a new date from day, month and year (French version).
* The month is the real month of the year and not the one which is stored
* in Calendar object. Time is set to 00:00:00.000
*
* @param dd value of the day 1-31
* @param mm value of the month 1-12
* @param yy value of the year 0-9999
* @return a new date
*/
public static Date createDate(int dd, int mm, int yy) {
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.YEAR, yy);
calendar.set(Calendar.MONTH, mm - 1);
calendar.set(Calendar.DAY_OF_MONTH, dd);
return setMinTimeOfDay(calendar.getTime());
}
/**
* Create a new date after the current date (today) with modification on day, month and year.
* You can use negative values on arguments to have a date before today.
*
* @param ddStep nb days you want to increase from the current date
* @param mmStep nb months you want to increase from the current date
* @param yyStep nb years you want to increase from the current date
* @return a new date from the current date increase by days, months and years.
*/
public static Date createDateAfterToday(int ddStep, int mmStep, int yyStep) {
Calendar calendar = getDefaultCalendar(new Date());
calendar.add(Calendar.DAY_OF_MONTH, ddStep);
calendar.add(Calendar.MONTH, mmStep);
calendar.add(Calendar.YEAR, yyStep);
return calendar.getTime();
}
/**
* Set the last day of month to the date in argument.
* The value depends on the month of the date. (30 april, 28 february, ...)
*
* @param date Date to modify
* @return the date with day of month modified
*/
public static Date setLastDayOfMonth(Date date) {
Calendar calendar = getDefaultCalendar(date);
int maximum = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
calendar.set(Calendar.DAY_OF_MONTH, maximum);
Date lastDay = calendar.getTime();
return lastDay;
}
/**
* Set the first day of month to the date in argument.
*
* @param date Date to modify
* @return the date with day of month modified
*/
public static Date setFirstDayOfMonth(Date date) {
Calendar calendar = getDefaultCalendar(date);
calendar.set(Calendar.DAY_OF_MONTH, 1);
Date firstDay = calendar.getTime();
return firstDay;
}
/**
* Set the last day of year to the date in argument.
*
* @param date Date to modify
* @return the date with day of year modified
*/
public static Date setLastDayOfYear(Date date) {
Calendar calendar = getDefaultCalendar(date);
int maximum = calendar.getActualMaximum(Calendar.DAY_OF_YEAR);
calendar.set(Calendar.DAY_OF_YEAR, maximum);
Date lastDay = calendar.getTime();
return lastDay;
}
/**
* Set the first day of year to the date in argument.
*
* @param date Date to modify
* @return the date with day of year modified
*/
public static Date setFirstDayOfYear(Date date) {
Calendar calendar = getDefaultCalendar(date);
calendar.set(Calendar.DAY_OF_YEAR, 1);
Date firstDay = calendar.getTime();
return firstDay;
}
/**
* Set the min time of the day : 00:00:00.000.
*
* @param date to modify
* @return Date with the time set to the minimum in the day
*/
public static Date setMinTimeOfDay(Date date) {
Calendar calendar = getDefaultCalendar(date);
calendar.set(Calendar.AM_PM, Calendar.AM);
calendar.set(Calendar.HOUR, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
return calendar.getTime();
}
/**
* Set the max time of the day. EUROPE : 23:59:59.999.
*
* @param date to modify
* @return Date with the time set to the maximum in the day
*/
public static Date setMaxTimeOfDay(Date date) {
Calendar calendar = getDefaultCalendar(date);
calendar.set(Calendar.AM_PM, Calendar.PM);
calendar.set(Calendar.HOUR, 11);
calendar.set(Calendar.MINUTE, 59);
calendar.set(Calendar.SECOND, 59);
calendar.set(Calendar.MILLISECOND, 999);
return calendar.getTime();
}
/**
* Check if the first date in argument is included between the two other
* dates. The argument myDate can be equals to beforeDate or afterDate to
* validate the includes.
*
* @param myDate the date to test
* @param beforeDate the first date of the period to test
* @param afterDate the second date of the period to test
* @return true if myDate is included between beforeDate and afterDate
*/
public static boolean between(Date myDate, Date beforeDate, Date afterDate) {
if (myDate == null) {
return false;
}
boolean result = true;
result &= myDate.after(beforeDate) || myDate.compareTo(beforeDate) == 0;
result &= afterDate == null || myDate.before(afterDate) ||
myDate.compareTo(afterDate) == 0;
return result;
}
/**
* Check if the current date is between the two dates in argument.
*
* @param beforeDate the first date of the period
* @param afterDate the second date of the period
* @return true if the current date is included between the two dates,
* false otherwise
* @see #between(Date, Date, Date)
*/
public static boolean currentPeriod(Date beforeDate, Date afterDate) {
return between(new Date(), beforeDate, afterDate);
}
/**
* Get the month value from a date (between 0 and 11).
*
* @param date the date to extract month
* @return the month value of the date
*/
public static int getMonth(Date date) {
Calendar calendar = getDefaultCalendar(date);
return calendar.get(Calendar.MONTH);
}
/**
* Do the difference between the two dates in argument. The result is a number
* of seconds between the two dates.
*
* @param beginDate first date
* @param endDate second date
* @return a number of seconds between beginDate and endDate
*/
public static int getDifferenceInSeconds(Date beginDate, Date endDate) {
long begin = beginDate.getTime();
long end = endDate.getTime();
return (int) Math.ceil((end - begin) / 1000);
}
/**
* Do the difference between the two dates in argument. The result is a number
* of minutes between the two dates.
*
* @param beginDate first date
* @param endDate second date
* @return a number of minutes between beginDate and endDate
*/
public static int getDifferenceInMinutes(Date beginDate, Date endDate) {
long begin = beginDate.getTime();
long end = endDate.getTime();
// 60000 = 60 * 1000
return (int) Math.ceil((end - begin) / 60000);
}
/**
* Do the difference between the two dates in argument. The result is a number
* of hours between the two dates.
*
* @param beginDate first date
* @param endDate second date
* @return a number of hours between beginDate and endDate
*/
public static int getDifferenceInHours(Date beginDate, Date endDate) {
long begin = beginDate.getTime();
long end = endDate.getTime();
// 3600000 = 60 * 60 * 1000
return (int) Math.ceil((end - begin) / 3600000);
}
/**
* Do the difference between the two dates in argument. The result is a number
* of days between the two dates.
* Ex : 28/01/2009 and 08/02/2009 return 11.
*
* @param beginDate first date
* @param endDate second date
* @return a number of days between beginDate and endDate
*/
public static int getDifferenceInDays(Date beginDate, Date endDate) {
long begin = beginDate.getTime();
long end = endDate.getTime();
// 86400000 = 24 * 60 * 60 * 1000
return (int) Math.ceil((end - begin) / 86400000);
}
/**
* Do the difference between the two dates in argument. The result is a number
* of months between the two dates.
* Ex : 01/01/2009 and 28/02/2009 return 2 months.
* Warning, if beginDate is inferior to endDate, the result will be 1 minimum
*
* @param beginDate first date
* @param endDate second date
* @return a number of months between beginDate and endDate
*/
public static int getDifferenceInMonths(Date beginDate, Date endDate) {
int count = 0;
Calendar fromCalendar = getDefaultCalendar(beginDate);
Calendar thruCalendar = getDefaultCalendar(endDate);
while (fromCalendar.before(thruCalendar)) {
fromCalendar.add(Calendar.MONTH, 1);
count++;
}
return count;
}
/**
* Get the age of a person born on the date in argument. The result is a number
* of years between the birth date and now.
* Ex : 01/01/2000 returns 11 years (now date is 26/10/2011).
*
* @param birthDate birth date
* @return a number of years between birthDate and now
*/
public static int getAge(Date birthDate) {
int count = 0;
Calendar fromCalendar = getDefaultCalendar(birthDate);
Calendar thruCalendar = getDefaultCalendar(new Date());
fromCalendar.add(Calendar.YEAR, 1);
while (fromCalendar.before(thruCalendar)) {
count++;
fromCalendar.add(Calendar.YEAR, 1);
}
return count;
}
/**
* Get libelle of the month corresponding to the number given in argument.
*
* @param monthNumber between 1-12
* @param locale Locale for language support
* @return a String corresponding to the libelle of the month
*/
public static String getMonthLibelle(int monthNumber, Locale locale) {
return new DateFormatSymbols(locale).getMonths()[monthNumber - 1];
}
/**
* Get libelle of the month corresponding to the number given in argument.
*
* @param monthNumber between 1-12
* @return a String corresponding to the libelle of the month
*/
public static String getMonthLibelle(int monthNumber) {
return getMonthLibelle(monthNumber, Locale.getDefault());
}
/**
* Get the date before today
*
* @param date concerned
* @return Date before today
*/
public static Date getYesterday(Date date) {
Calendar cal = getDefaultCalendar(date);
if (cal.get(Calendar.MONTH)==Calendar.JANUARY && cal.get(Calendar.DAY_OF_MONTH)==1){
cal.roll(Calendar.YEAR,false);
}
if (cal.get(Calendar.DAY_OF_MONTH)==1) {
cal.roll(Calendar.MONTH,false);
}
cal.roll(Calendar.DAY_OF_MONTH, false);
return cal.getTime();
}
/**
* Get the calendar corresponding to the {@code date}. The default calendar
* will be returned (default time zone and locale).
*
* @param date used to set the calendar time
* @return the default calendar with time corresponding to the {@code date}
*/
public static Calendar getDefaultCalendar(Date date) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
return calendar;
}
/**
* Truncate a date to its week (to monday). It's equivalent to a call to
* {@link org.apache.commons.lang3.time.DateUtils#truncate(java.util.Date, int)}
* and giving {@link java.util.Calendar#DAY_OF_WEEK} argument, but such a call
* raise an exception showing that this field is not supported. This method
* allows you to bypass this limitation.
*
* @param date any date
* @return a date in the same week as given date, a monday. All field below
* (hours, secondes, ms) are zeroed.
*/
public static Date truncateToDayOfWeek(Date date) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
return calendar.getTime();
}
}
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