Java Regex Date Vaidate parseDateDiff(String time)

Description

parse Date Diff

License

MIT License

Declaration

public static long parseDateDiff(String time) 

Method Source Code

//package com.java2s;
/*// ww w .j  ava2  s  .  c o  m
 * This file is part of UltimateCore, licensed under the MIT License (MIT).
 *
 * Copyright (c) Bammerbom
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {
    public static long parseDateDiff(String time) {
        try {
            Long mil = 999L;
            Matcher matcher = Pattern.compile("\\d+\\D+").matcher(time);
            while (matcher.find()) {
                String s = matcher.group();
                Long numb = Long.parseLong(s.split("(?<=\\D)(?=\\d)|(?<=\\d)(?=\\D)")[0]);
                String type = s.split("(?<=\\D)(?=\\d)|(?<=\\d)(?=\\D)")[1];
                switch (type) {
                case "s":
                    mil = mil + (numb * 1000);
                    break;
                case "m":
                    mil = mil + (numb * 1000 * 60);
                    break;
                case "h":
                    mil = mil + (numb * 1000 * 60 * 60);
                    break;
                case "d":
                    mil = mil + (numb * 1000 * 60 * 60 * 24);
                    break;
                case "w":
                    mil = mil + (numb * 1000 * 60 * 60 * 24 * 7);
                    break;
                case "M":
                    mil = mil + (numb * 1000 * 60 * 60 * 24 * 30);
                    break;
                case "y":
                    mil = mil + (numb * 1000 * 60 * 60 * 24 * 365);
                    break;
                }
            }
            if (mil == 999) {
                return -1L;
            }
            return mil;
        } catch (Exception ex) {
            return -1L;
        }
    }
}

Related

1. parseDate(String date)
2. parseDate(String dateStr)
3. parseDate(String entry)
4. parseDate(String text)
5. parseDateDiff(final String time)
6. parseDateDiff(String time, boolean future)
7. parseDateOffset(String time)