Java Parse Date parseDate(String input)

Description

parse Date

License

Open Source License

Declaration

public static String parseDate(String input) 

Method Source Code

//package com.java2s;
/*/* w w w .j a v a 2s.com*/
 * Copyright Siemens AG, 2013-2015. Part of the SW360 Portal Project.
 *
 * SPDX-License-Identifier: EPL-1.0
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 */

import java.text.SimpleDateFormat;
import java.util.Date;

public class Main {
    public static String parseDate(String input) {
        if ("NULL".equals(input)) {
            return null;
        }

        if (input.length() == 24 && input.startsWith("CAST")) {
            String text = input.substring(7, 7 + 8);

            StringBuilder invertedBuilder = new StringBuilder();
            for (int i = 3; i >= 0; i--) {
                invertedBuilder.append(text.substring(2 * i, 2 * i + 2));
            }

            long daysSinceRataDieEpoch = Long.parseLong(invertedBuilder.toString(), 16);

            long daysSinceLinuxEpoch = daysSinceRataDieEpoch - 719163L; // Epoch is 1.1.1 for rata die, 1970-01-01 corresponds to 719163L

            long miliSecondsSinceLinuxEpoch = daysSinceLinuxEpoch * 24 * 3600 * 1000;
            Date date = new Date(miliSecondsSinceLinuxEpoch);
            return new SimpleDateFormat("yyyy-MM-dd").format(date);
        }

        else {
            return input;
        }
    }
}

Related

1. parseDate(String format, String value)
2. parseDate(String formatPattern, String dateStr)
3. parseDate(String formattedDate)
4. parseDate(String gameDate)
5. parseDate(String in)
6. parseDate(String line)
7. parseDate(String myDate, String pattern)
8. parseDate(String partten, String datatime)
9. parseDate(String representedValue)