Java TimeZone String Parse parseDA(TimeZone tz, String s)

Description

parse DA

License

LGPL

Declaration

public static Date parseDA(TimeZone tz, String s) 

Method Source Code

//package com.java2s;
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1/*from  w w  w .ja  v  a 2  s  .  c o m*/
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is part of dcm4che, an implementation of DICOM(TM) in
 * Java(TM), hosted at https://github.com/gunterze/dcm4che.
 *
 * The Initial Developer of the Original Code is
 * Agfa Healthcare.
 * Portions created by the Initial Developer are Copyright (C) 2011
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 * See @authors listed below
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

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

public class Main {
    public static Date parseDA(TimeZone tz, String s) {
        return parseDA(tz, s, false);
    }

    public static Date parseDA(TimeZone tz, String s, boolean ceil) {
        Calendar cal = cal(tz);
        int length = s.length();
        if (!(length == 8 || length == 10 && !Character.isDigit(s.charAt(4))))
            throw new IllegalArgumentException(s);
        try {
            int pos = 0;
            cal.set(Calendar.YEAR, Integer.parseInt(s.substring(pos, pos + 4)));
            pos += 4;
            if (!Character.isDigit(s.charAt(pos)))
                pos++;
            cal.set(Calendar.MONTH, Integer.parseInt(s.substring(pos, pos + 2)) - 1);
            pos += 2;
            if (!Character.isDigit(s.charAt(pos)))
                pos++;
            cal.set(Calendar.DAY_OF_MONTH, Integer.parseInt(s.substring(pos)));
            if (ceil)
                ceil(cal, Calendar.DAY_OF_MONTH);
        } catch (NumberFormatException e) {
            throw new IllegalArgumentException(s);
        }
        return cal.getTime();
    }

    private static Calendar cal(TimeZone tz) {
        Calendar cal = (tz != null) ? new GregorianCalendar(tz) : new GregorianCalendar();
        cal.clear();
        return cal;
    }

    private static Calendar cal(TimeZone tz, Date date) {
        Calendar cal = (tz != null) ? new GregorianCalendar(tz) : new GregorianCalendar();
        cal.setTime(date);
        return cal;
    }

    private static void ceil(Calendar cal, int field) {
        cal.add(field, 1);
        cal.add(Calendar.MILLISECOND, -1);
    }
}

Related

1. guessTimeZone(String timezoneOffset)
2. parseCal(long time, TimeZone to)
3. parseTimeZoneId(String timeZoneId)
4. parseTimeZoneString(String timeZoneString)
5. parseTimeZoneString(String timeZoneString)
6. safeTimeZone(String s)