Java Time Format getTimeCount(String from, String to, String format)

Description

get Time Count

License

Open Source License

Declaration

public static long getTimeCount(String from, String to, String format) throws ParseException 

Method Source Code

//package com.java2s;
/*/*from ww w  . j  a  va 2 s .c o m*/
 * M2M ServiceFOTA ONM version 1.0
 *
 *  Copyright ? 2014 kt corp. All rights reserved.
 *
 *  This is a proprietary software of kt corp, and you may not use this file except in
 *  compliance with license agreement with kt corp. Any redistribution or use of this
 *  software, with or without modification shall be strictly prohibited without prior written
 *  approval of kt corp, and the copyright notice above does not evidence any actual or
 *  intended publication of such software.
 */

import java.text.ParseException;
import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.Locale;

public class Main {

    public static long getTimeCount(String from, String to) throws ParseException {

        String format = getFormatStringWithDate(from);

        return getTimeCount(from, to, format);
    }

    public static long getTimeCount(String from, String to, String format) throws ParseException {

        Date d1 = dateFormatCheck(from, format);
        Date d2 = dateFormatCheck(to, format);

        long duration = d2.getTime() - d1.getTime();

        return duration;
    }

    protected static String getFormatStringWithDate(String date) throws ParseException {
        String format = null;

        if (date.length() == 4) {
            format = "HHmm";
        } else if (date.length() == 8) {
            format = "yyyyMMdd";
        } else if (date.length() == 12) {
            format = "yyyyMMddHHmm";
        } else if (date.length() == 14) {
            format = "yyyyMMddHHmmss";
        } else if (date.length() == 17) {
            format = "yyyyMMddHHmmssSSS";
        } else if (date.length() == 19) {
            format = "yyyy/MM/dd HH:mm:ss";
        } else {
            throw new ParseException(" wrong date format!:\"" + format + "\"", 0);
        }

        return format;
    }

    public static Date dateFormatCheck(String source) throws ParseException {

        return dateFormatCheck(source, "yyyyMMdd");
    }

    public static Date dateFormatCheck(String source, String format) throws ParseException {

        if (source == null) {
            throw new ParseException("date string to check is null", 0);
        }

        if (format == null) {
            throw new ParseException("format string to check date is null", 0);
        }

        SimpleDateFormat formatter = new SimpleDateFormat(format, Locale.KOREA);

        Date date = null;

        try {
            date = formatter.parse(source);
        } catch (ParseException e) {
            throw new ParseException(" wrong date:\"" + source + "\" with format \"" + format + "\"", 0);
        }

        if (!formatter.format(date).equals(source)) {
            throw new ParseException("Out of bound date:\"" + source + "\" with format \"" + format + "\"", 0);
        }

        return date;
    }
}

Related

1. getTimeAsString(final Date date, final String format)
2. getTimeAsString(String timeFormatAsString)
3. getTimeByDate(Date date, String timeFormat)
4. getTimeByFormat(Date date, String format)
5. getTimeCount(String from, String to, String format)
6. getTimeFormat()
7. getTimeFormat()
8. getTimeFormat()
9. getTimeFormat(Date date, String strFormat)