Java Day End endOfDay(Date dateInst)

Description

Method to return an "anti-normalized" version of the input Date whose time is set to the absolute end of that same day (last millisecond of last second of last minute of last hour).

License

Open Source License

Parameter

Parameter	Description
dateInst	- instance of Date

Return

- instance of Date as described

Declaration

public static Date endOfDay(Date dateInst)

Method Source Code

//package com.java2s;
/*//from  www. j  a va  2s .  c  om
    
 Copyright IBM Corp. 2012, 2016
 This file is part of Anomaly Detection Engine for Linux Logs (ADE).

 ADE is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 ADE 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 Public License for more details.

 You should have received a copy of the GNU General Public License
 along with ADE.  If not, see <http://www.gnu.org/licenses/>.
    
 */

import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;

public class Main {
    public static final int LAST_HOUR_OF_DAY = 23;
    public static final int LAST_MINUTE = 59;
    public static final int LAST_SECOND = 59;
    public static final int LAST_MILLISECOND = 999;

    /**
     * Method to return an "anti-normalized" version of the input Date
     * whose time is set to the absolute end of that same day
     * (last millisecond of last second of last minute of last hour).
     *    
     * @param dateInst - instance of Date
     * @return - instance of Date as described
     */
    public static Date endOfDay(Date dateInst) {

        if (dateInst == null) {
            throw new IllegalArgumentException();
        }
        final Calendar cal = new GregorianCalendar();
        cal.setTime(dateInst);
        cal.set(Calendar.HOUR_OF_DAY, LAST_HOUR_OF_DAY);
        cal.set(Calendar.MINUTE, LAST_MINUTE);
        cal.set(Calendar.SECOND, LAST_SECOND);
        cal.set(Calendar.MILLISECOND, LAST_MILLISECOND);
        return cal.getTime();

    }
}