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NextReports Engine is a lightweight Java platform development library which
can be used to run NextReports inside your applications.
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package ro.nextreports.engine.util;
import java.util.Date;
import java.util.Calendar;
import java.sql.Timestamp;
/**
* Created by IntelliJ IDEA.
* User: mihai.panaitescu
* Date: May 22, 2008
* Time: 1:46:12 PM
*/
public class DateUtil {
/**
* Use only static methods
*/
private DateUtil() {
}
/**
* Compares dates d1 and d2 taking into
* consideration only the year, month and day
* @param d1 the first date
* @param d2 the second date
* @return true if d1 is after d2,
* false otherwise
* @see java.util.Calendar#after(java.lang.Object)
* @see #before(java.util.Date , java.util.Date)
* @see #compare(java.util.Date , java.util.Date)
*/
public static boolean after(Date d1, Date d2) {
d1 = floor(d1);
Calendar c1 = Calendar.getInstance();
c1.setTime(d1);
d2 = floor(d2);
Calendar c2 = Calendar.getInstance();
c2.setTime(d2);
return c1.after(c2);
}
/**
* Compares dates d1 and d2 taking into
* consideration only the year, month and day
* @param d1 the first date
* @param d2 the second date
* @return true if d1 is before d2,
* false otherwise
* @see Calendar#before(java.lang.Object)
* @see #after(Date, Date)
* @see #compare(Date, Date)
*/
public static boolean before(Date d1, Date d2) {
d1 = floor(d1);
Calendar c1 = Calendar.getInstance();
c1.setTime(d1);
d2 = floor(d2);
Calendar c2 = Calendar.getInstance();
c2.setTime(d2);
return c1.before(c2);
}
/**
* Compares two dates taking into consideration only the year, month and day
* @param d1 the first date
* @param d2 the second date
* @return a negative integer, zero, or a positive integer as
* d1 is less than, equal to, or greater than d2
* @see java.util.Comparator
* @see #after(Date, Date)
* @see #before(Date, Date)
*/
public static int compare(Date d1, Date d2) {
Calendar c1 = Calendar.getInstance();
c1.setTime(d1);
Calendar c2 = Calendar.getInstance();
c2.setTime(d2);
if (c1.get(Calendar.YEAR) == c2.get(Calendar.YEAR)) {
if (c1.get(Calendar.MONTH) == c2.get(Calendar.MONTH)) {
return c1.get(Calendar.DAY_OF_MONTH) - c2.get(Calendar.DAY_OF_MONTH);
}
return c1.get(Calendar.MONTH) - c2.get(Calendar.MONTH);
}
return c1.get(Calendar.YEAR) - c2.get(Calendar.YEAR);
}
/** Get the year of the date
*
* @param date date
* @return year of the date
*/
public static int getYear(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
return c.get(Calendar.YEAR);
}
/** Get the month of the date
*
* @param date date
* @return month of the date
*/
public static int getMonth(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
return c.get(Calendar.MONTH);
}
/** Get the day of year of the date
*
* @param date date
* @return day of year of the date
*/
public static int getDayOfYear(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
return c.get(Calendar.DAY_OF_YEAR);
}
/** Get the day of month of the date
*
* @param date date
* @return day of month of the date
*/
public static int getDayOfMonth(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
return c.get(Calendar.DAY_OF_MONTH);
}
/** Get the day of week of the date
*
* @param date date
* @return day of week of the date
*/
public static int getDayOfWeek(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
return c.get(Calendar.DAY_OF_WEEK);
}
/** Get the hour of the date
*
* @param date date
* @return hour of the date
*/
public static int getHour(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
return c.get(Calendar.HOUR_OF_DAY);
}
/** Get the minute of the date
*
* @param date date
* @return minute of the date
*/
public static int getMinute(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
return c.get(Calendar.MINUTE);
}
/** Get the second of the date
*
* @param date date
* @return second of the date
*/
public static int getSecond(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
return c.get(Calendar.SECOND);
}
/**
* Rounds a date to hour 0, minute 0, second 0 and millisecond 0
* @param d the date
* @return the rounded date
*/
public static Date floor(Date d) {
Calendar c = Calendar.getInstance();
c.setTime(d);
c.set(Calendar.HOUR_OF_DAY, 0);
c.set(Calendar.MINUTE, 0);
c.set(Calendar.SECOND, 0);
c.set(Calendar.MILLISECOND, 0);
return c.getTime();
}
/**
* Rounds a date to hour 23, minute 59, second 59 and millisecond 999
* @param d the date
* @return the rounded date
*/
public static Date ceil(Date d) {
Calendar c = Calendar.getInstance();
c.setTime(d);
c.set(Calendar.HOUR_OF_DAY, 23);
c.set(Calendar.MINUTE, 59);
c.set(Calendar.SECOND, 59);
c.set(Calendar.MILLISECOND, 999);
return c.getTime();
}
/** Test to see if two dates are in the same day of year
*
* @param dateOne first date
* @param dateTwo second date
* @return true if the two dates are in the same day of year
*/
public static boolean sameDay(Date dateOne, Date dateTwo) {
if ((dateOne == null) || (dateTwo == null)) {
return false;
}
Calendar cal = Calendar.getInstance();
cal.setTime(dateOne);
int year = cal.get(Calendar.YEAR);
int day = cal.get(Calendar.DAY_OF_YEAR);
cal.setTime(dateTwo);
int year2 = cal.get(Calendar.YEAR);
int day2 = cal.get(Calendar.DAY_OF_YEAR);
return ( (year == year2) && (day == day2) );
}
/** Test to see if two dates are in the same week
*
* @param dateOne first date
* @param dateTwo second date
* @return true if the two dates are in the same week
*/
public static boolean sameWeek(Date dateOne, Date dateTwo) {
if ((dateOne == null) || (dateTwo == null)) {
return false;
}
Calendar cal = Calendar.getInstance();
cal.setTime(dateOne);
int year = cal.get(Calendar.YEAR);
int week = cal.get(Calendar.WEEK_OF_YEAR);
cal.setTime(dateTwo);
int year2 = cal.get(Calendar.YEAR);
int week2 = cal.get(Calendar.WEEK_OF_YEAR);
return ( (year == year2) && (week == week2) );
}
/** Test to see if two dates are in the same month
*
* @param dateOne first date
* @param dateTwo second date
* @return true if the two dates are in the same month
*/
public static boolean sameMonth(Date dateOne, Date dateTwo) {
if ((dateOne == null) || (dateTwo == null)) {
return false;
}
Calendar cal = Calendar.getInstance();
cal.setTime(dateOne);
int year = cal.get(Calendar.YEAR);
int month = cal.get(Calendar.MONTH);
cal.setTime(dateTwo);
int year2 = cal.get(Calendar.YEAR);
int month2 = cal.get(Calendar.MONTH);
return ( (year == year2) && (month == month2) );
}
/** Test to see if two dates are in the same hour of day
*
* @param dateOne first date
* @param dateTwo second date
* @return true if the two dates are in the same hour of day
*/
public static boolean sameHour(Date dateOne, Date dateTwo) {
if ((dateOne == null) || (dateTwo == null)) {
return false;
}
Calendar cal = Calendar.getInstance();
cal.setTime(dateOne);
int year = cal.get(Calendar.YEAR);
int month = cal.get(Calendar.MONTH);
int day = cal.get(Calendar.DAY_OF_YEAR);
int hour = cal.get(Calendar.HOUR_OF_DAY);
cal.setTime(dateTwo);
int year2 = cal.get(Calendar.YEAR);
int month2 = cal.get(Calendar.MONTH);
int day2 = cal.get(Calendar.DAY_OF_YEAR);
int hour2 = cal.get(Calendar.HOUR_OF_DAY);
return ( (year == year2) && (month == month2) && (day == day2) &&
(hour == hour2));
}
/** Get number of days between two dates
*
* @param first first date
* @param second second date
* @return number of days if first date less than second date,
* 0 if first date is bigger than second date,
* 1 if dates are the same
*
*/
public static int getNumberOfDays(Date first, Date second)
{
Calendar c = Calendar.getInstance();
int result = 0;
int compare = first.compareTo(second);
if (compare > 0) return 0;
if (compare == 0) return 1;
c.setTime(first);
int firstDay = c.get(Calendar.DAY_OF_YEAR);
int firstYear = c.get(Calendar.YEAR);
int firstDays = c.getActualMaximum(Calendar.DAY_OF_YEAR);
c.setTime(second);
int secondDay = c.get(Calendar.DAY_OF_YEAR);
int secondYear = c.get(Calendar.YEAR);
// if dates in the same year
if (firstYear == secondYear)
{
result = secondDay-firstDay+1;
}
// different years
else
{
// days from the first year
result += firstDays - firstDay + 1;
// add days from all years between the two dates years
for (int i = firstYear+1; i< secondYear; i++)
{
c.set(i,0,0);
result += c.getActualMaximum(Calendar.DAY_OF_YEAR);
}
// days from last year
result += secondDay;
}
return result;
}
/** Get elapsedtime between two dates
*
* @param first first date
* @param second second date
* @return null if first date is after second date
* an integer array of three elemets ( days, hours minutes )
*/
public static int[] getElapsedTime(Date first, Date second) {
if (first.compareTo(second) == 1 ) {
return null;
}
int difDays = 0;
int difHours = 0;
int difMinutes = 0;
Calendar c = Calendar.getInstance();
c.setTime(first);
int h1 = c.get(Calendar.HOUR_OF_DAY);
int m1 = c.get(Calendar.MINUTE);
c.setTime(second);
int h2 = c.get(Calendar.HOUR_OF_DAY);
int m2 = c.get(Calendar.MINUTE);
if (sameDay(first, second)) {
difHours = h2 - h1;
} else {
difDays = getNumberOfDays(first, second)-1;
if (h1 >= h2) {
difDays--;
difHours = (24 - h1) + h2;
} else {
difHours = h2 - h1;
}
}
if (m1 >= m2) {
difHours--;
difMinutes = (60 - m1) + m2;
} else {
difMinutes = m2 - m1;
}
int[] result = new int[3];
result[0] = difDays;
result[1] = difHours;
result[2] = difMinutes;
return result;
}
/** Add minutes to a date
*
* @param d date
* @param minutes minutes
* @return new date
*/
public static Date addMinutes(Date d, int minutes) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
cal.add(Calendar.MINUTE, minutes);
return cal.getTime();
}
/** Set minutes to a date
*
* @param d date
* @param minutes minutes
* @return new date
*/
public static Date setMinutes(Date d, int minutes) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
cal.set(Calendar.MINUTE, minutes);
return cal.getTime();
}
/** Add hours to a date
*
* @param d date
* @param hours hours
* @return new date
*/
public static Date addHours(Date d, int hours) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
cal.add(Calendar.HOUR_OF_DAY, hours);
return cal.getTime();
}
/** Set hours to a date
*
* @param d date
* @param hours hours
* @return new date
*/
public static Date setHours(Date d, int hours) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
cal.set(Calendar.HOUR_OF_DAY, hours);
return cal.getTime();
}
/** Add days to a date
*
* @param d date
* @param days days
* @return new date
*/
public static Date addDays(Date d, int days) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
cal.add(Calendar.DAY_OF_YEAR, days);
return cal.getTime();
}
/** Add weeks to a date
*
* @param d date
* @param weeks weeks
* @return new date
*/
public static Date addWeeks(Date d, int weeks) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
cal.add(Calendar.WEEK_OF_YEAR, weeks);
return cal.getTime();
}
/** Add months to a date
*
* @param d date
* @param months months
* @return new date
*/
public static Date addMonths(Date d, int months) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
cal.add(Calendar.MONTH, months);
return cal.getTime();
}
/**
* Get last day from a month
* @param date date
* @return last day from a month
*/
public static int getLastDayOfMonth(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
return c.getActualMaximum(Calendar.DATE);
}
/**
* Get a date from a timestamp
* @param timestamp time stamp
* @return date from a timestamp
*/
public static Date getFromTimestamp(Timestamp timestamp) {
if (timestamp == null) {
return null;
}
return new Date(timestamp.getTime());
}
/**
* Get first date from last week
* @param d date
* @return first date from last week
*/
public static Date getFirstDayFromLastWeek(Date d) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
cal.add(Calendar.WEEK_OF_YEAR, -1);
cal.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MILLISECOND, 0);
return cal.getTime();
}
/**
* Get last date from last week
* @param d date
* @return last date from last week
*/
public static Date getLastDayFromLastWeek(Date d) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
cal.add(Calendar.WEEK_OF_YEAR, -1);
cal.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY);
cal.set(Calendar.HOUR_OF_DAY, 23);
cal.set(Calendar.MINUTE, 59);
cal.set(Calendar.SECOND, 59);
cal.set(Calendar.MILLISECOND, 999);
return cal.getTime();
}
/**
* Get first date from current week
* @param d date
* @return first date from current week
*/
public static Date getFirstDayFromCurrentWeek(Date d) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
cal.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MILLISECOND, 0);
return cal.getTime();
}
/**
* Get last date from current week
* @param d date
* @return last date from current week
*/
public static Date getLastDayFromCurrentWeek(Date d) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
cal.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY);
cal.set(Calendar.HOUR_OF_DAY, 23);
cal.set(Calendar.MINUTE, 59);
cal.set(Calendar.SECOND, 59);
cal.set(Calendar.MILLISECOND, 999);
return cal.getTime();
}
/**
* Get first date from last month
* @param d date
* @return first date from last month
*/
public static Date getFirstDayFromLastMonth(Date d) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
cal.add(Calendar.MONTH, -1);
cal.set(Calendar.DAY_OF_MONTH, 1);
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MILLISECOND, 0);
return cal.getTime();
}
/**
* Get last date from last month
* @param d date
* @return last date from last month
*/
public static Date getLastDayFromLastMonth(Date d) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
cal.add(Calendar.MONTH, -1);
cal.set(Calendar.DAY_OF_MONTH, cal.getActualMaximum(Calendar.DATE));
cal.set(Calendar.HOUR_OF_DAY, 23);
cal.set(Calendar.MINUTE, 59);
cal.set(Calendar.SECOND, 59);
cal.set(Calendar.MILLISECOND, 999);
return cal.getTime();
}
/**
* Get first date from current month
* @param d date
* @return first date from current month
*/
public static Date getFirstDayFromCurrentMonth(Date d) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
cal.set(Calendar.DAY_OF_MONTH, 1);
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MILLISECOND, 0);
return cal.getTime();
}
/**
* Get last date from current month
* @param d date
* @return last date from current month
*/
public static Date getLastDayFromCurrentMonth(Date d) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
cal.set(Calendar.DAY_OF_MONTH, cal.getActualMaximum(Calendar.DATE));
cal.set(Calendar.HOUR_OF_DAY, 23);
cal.set(Calendar.MINUTE, 59);
cal.set(Calendar.SECOND, 59);
cal.set(Calendar.MILLISECOND, 999);
return cal.getTime();
}
/**
* Get first date from last year
* @param d date
* @return first date from last year
*/
public static Date getFirstDayFromLastYear(Date d) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
cal.add(Calendar.YEAR, -1);
cal.set(Calendar.MONTH, Calendar.JANUARY);
cal.set(Calendar.DAY_OF_MONTH, 1);
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MILLISECOND, 0);
return cal.getTime();
}
/**
* Get last date from last year
* @param d date
* @return last date from last year
*/
public static Date getLastDayFromLastYear(Date d) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
cal.add(Calendar.YEAR, -1);
cal.set(Calendar.MONTH, Calendar.DECEMBER);
cal.set(Calendar.DAY_OF_MONTH, 31);
cal.set(Calendar.HOUR_OF_DAY, 23);
cal.set(Calendar.MINUTE, 59);
cal.set(Calendar.SECOND, 59);
cal.set(Calendar.MILLISECOND, 999);
return cal.getTime();
}
/**
* Get first date from current year
* @param d date
* @return first date from current year
*/
public static Date getFirstDayFromCurrentYear(Date d) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
cal.set(Calendar.MONTH, Calendar.JANUARY);
cal.set(Calendar.DAY_OF_MONTH, 1);
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MILLISECOND, 0);
return cal.getTime();
}
/**
* Get last date from current year
* @param d date
* @return last date from current year
*/
public static Date getLastDayFromCurrentYear(Date d) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
cal.set(Calendar.MONTH, Calendar.DECEMBER);
cal.set(Calendar.DAY_OF_MONTH, 31);
cal.set(Calendar.HOUR_OF_DAY, 23);
cal.set(Calendar.MINUTE, 59);
cal.set(Calendar.SECOND, 59);
cal.set(Calendar.MILLISECOND, 999);
return cal.getTime();
}
/**
* Get date with n unitType before
* @param d date
* @param n number of units
* @param unitType unit type : one of Calendar.DAY_OF_YEAR, Calendar.WEEK_OF_YEAR, Calendar.MONTH, Calendar.YEAR;
* @return
*/
public static Date getLastNDay(Date d, int n, int unitType) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
cal.add(unitType, -n);
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MILLISECOND, 0);
return cal.getTime();
}
}