isodate.java

pos机交易实现源代码 含金融卡交易8583协议实现 开发环境：linux 典型应用：嵌入系统开发 仅供参考

/*
 * Copyright (c) 2000 jPOS.org.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *    "This product includes software developed by the jPOS project 
 *    (http://www.jpos.org/)". Alternately, this acknowledgment may 
 *    appear in the software itself, if and wherever such third-party 
 *    acknowledgments normally appear.
 *
 * 4. The names "jPOS" and "jPOS.org" must not be used to endorse 
 *    or promote products derived from this software without prior 
 *    written permission. For written permission, please contact 
 *    [e-mail].
 *
 * 5. Products derived from this software may not be called "jPOS",
 *    nor may "jPOS" appear in their name, without prior written
 *    permission of the jPOS project.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  
 * IN NO EVENT SHALL THE JPOS PROJECT OR ITS CONTRIBUTORS BE LIABLE FOR 
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 * POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the jPOS Project.  For more
 * information please see <http://www.jpos.org/>.
 */

package org.jpos.iso;

import java.util.*;
import java.text.*;

/**
 * provides various parsing and format functions used
 * by the ISO 8583 specs.
 *
 * @author [e-mail]
 * @author Hani S. Kirollos
 * @version $Id: ISODate.java,v 1.14 2002/04/19 22:32:42 hsk Exp $
 * @see ISOUtil
 */
public class ISODate {
	/**
	 * Formats a date object, using the default time zone for this host
	 * @param d date object to be formatted
	 * @param pattern to be used for formatting
	 */
    public static String formatDate (Date d, String pattern) {
        return formatDate(d, pattern, TimeZone.getDefault());
    }
    /**
     * You should use this version of formatDate() if you want a specific 
     * timeZone to calculate the date on.
     * @param timeZone for GMT for example, use TimeZone.getTimeZone("GMT")
     *        and for Uruguay use TimeZone.getTimeZone("GMT-03:00")
     */
    public static String formatDate (Date d, String pattern, TimeZone timeZone) {
        SimpleDateFormat df =
            (SimpleDateFormat) DateFormat.getDateTimeInstance();
        df.setTimeZone(timeZone);
        df.applyPattern(pattern);
        return df.format(d);
    }
    /**
     * converts a string in DD/MM/YY format to a Date object
     * Warning: return null on invalid dates (prints Exception to console)
     * Uses default time zone for this host
     * @return parsed Date (or null)
     */
    public static Date parse(String s) {
        return parse(s, TimeZone.getDefault());
    }
    /**
     * converts a string in DD/MM/YY format to a Date object
     * Warning: return null on invalid dates (prints Exception to console)
     * @param s String in DD/MM/YY recorded in timeZone
     * @param timeZone for GMT for example, use TimeZone.getTimeZone("GMT")
     *        and for Uruguay use TimeZone.getTimeZone("GMT-03:00")
     * @return parsed Date (or null)
     */
    public static Date parse(String s, TimeZone timeZone) {
        Date d = null;
        SimpleDateFormat df =
            (SimpleDateFormat) DateFormat.getDateInstance(
                DateFormat.SHORT, Locale.UK);
        df.setTimeZone (timeZone);
        try {
            d = df.parse (s);
        } catch (java.text.ParseException e) {
        }
        return d;
    }
    /**
     * converts a string in DD/MM/YY HH:MM:SS format to a Date object
     * Warning: return null on invalid dates (prints Exception to console)
     * Uses default time zone for this host
     * @return parsed Date (or null)
     */
    public static Date parseDateTime(String s) {
        return parseDateTime(s, TimeZone.getDefault());
    }
    /**
     * converts a string in DD/MM/YY HH:MM:SS format to a Date object
     * Warning: return null on invalid dates (prints Exception to console)
     * @param s string in DD/MM/YY HH:MM:SS format recorded in timeZone
     * @param timeZone for GMT for example, use TimeZone.getTimeZone("GMT")
     *        and for Uruguay use TimeZone.getTimeZone("GMT-03:00")
     * @return parsed Date (or null)
     */
    public static Date parseDateTime(String s, TimeZone timeZone) {
        Date d = null;
        SimpleDateFormat df =
            (SimpleDateFormat) DateFormat.getDateTimeInstance(
                DateFormat.SHORT, DateFormat.MEDIUM, Locale.UK);

        df.setTimeZone (timeZone);
        try {
            d = df.parse (s);
        } catch (java.text.ParseException e) { }
        return d;
    }

    /**
     * try to find out suitable date given MMDDhhmmss format<br>
     * (difficult thing being finding out appropiate year)
     * @param d date formated as MMDDhhmmss, typical field 13 + field 12
     * @return Date
     */
    public static Date parseISODate (String d) {
	int MM = Integer.parseInt(d.substring (0, 2))-1;
	int DD = Integer.parseInt(d.substring (2, 4));
	int hh = Integer.parseInt(d.substring (4, 6));
	int mm = Integer.parseInt(d.substring (6, 8));
	int ss = Integer.parseInt(d.substring (8,10));

	Date now = new Date();
	Calendar cal = new GregorianCalendar();

	cal.setTime (now);
	cal.set (Calendar.MONTH, MM);
	cal.set (Calendar.DATE, DD);
	cal.set (Calendar.HOUR_OF_DAY, hh);
	cal.set (Calendar.MINUTE, mm);
	cal.set (Calendar.SECOND, ss);

	Date thisYear = cal.getTime();
	cal.set (Calendar.YEAR, cal.get (Calendar.YEAR)-1);
	Date previousYear = cal.getTime();

	if (Math.abs (now.getTime() - previousYear.getTime()) <
	    Math.abs (now.getTime() - thisYear.getTime()) )
	    thisYear = previousYear;
	return thisYear;
    }

    /**
     * @return date in MMddHHmmss format suitable for FIeld 7
     */
    public static String getDateTime (Date d) {
        return formatDate (d, "MMddHHmmss");
    }
	/**
	 * @param d date object to be formatted
     * @param timeZone for GMT for example, use TimeZone.getTimeZone("GMT")
     *        and for Uruguay use TimeZone.getTimeZone("GMT-03:00")
     * @return date in MMddHHmmss format suitable for FIeld 7
     */
    public static String getDateTime (Date d, TimeZone timeZone) {
        return formatDate (d, "MMddHHmmss", timeZone);
    }
    /**
     * @return date in HHmmss format - suitable for field 12
     */
    public static String getTime (Date d) {
        return formatDate (d, "HHmmss");
    }
    /**
	 * @param d date object to be formatted
     * @param timeZone for GMT for example, use TimeZone.getTimeZone("GMT")
     *        and for Uruguay use TimeZone.getTimeZone("GMT-03:00")
     * @return date in HHmmss format - suitable for field 12
     */
    public static String getTime (Date d, TimeZone timeZone) {
        return formatDate (d, "HHmmss", timeZone);
    }
    /**
     * @return date in MMdd format - suitable for field 13
     */
    public static String getDate(Date d) {
        return formatDate (d, "MMdd");
    }
    /**
	 * @param d date object to be formatted
     * @param timeZone for GMT for example, use TimeZone.getTimeZone("GMT")
     *        and for Uruguay use TimeZone.getTimeZone("GMT-03:00")
     * @return date in MMdd format - suitable for field 13
     */
    public static String getDate(Date d, TimeZone timeZone) {
        return formatDate (d, "MMdd", timeZone);
    }
    /**
     * @return date in yyMMdd format - suitable for ANSI field 8
     */
    public static String getANSIDate(Date d) {
        return formatDate (d, "yyMMdd");
    }
    /**
	 * @param d date object to be formatted
     * @param timeZone for GMT for example, use TimeZone.getTimeZone("GMT")
     *        and for Uruguay use TimeZone.getTimeZone("GMT-03:00")
     * @return date in yyMMdd format - suitable for ANSI field 8
     */
    public static String getANSIDate(Date d, TimeZone timeZone) {
        return formatDate (d, "yyMMdd", timeZone);
    }
    public static String getEuropeanDate(Date d) {
        return formatDate (d, "ddMMyy");
    }
    public static String getEuropeanDate(Date d, TimeZone timeZone) {
        return formatDate (d, "ddMMyy", timeZone);
    }
    /**
     * @return date in yyMM format - suitable for field 14
     */
    public static String getExpirationDate(Date d) {
        return formatDate (d, "yyMM");
    }
    /**
	 * @param d date object to be formatted
     * @param timeZone for GMT for example, use TimeZone.getTimeZone("GMT")
     *        and for Uruguay use TimeZone.getTimeZone("GMT-03:00")
     * @return date in yyMM format - suitable for field 14
     */
    public static String getExpirationDate(Date d, TimeZone timeZone) {
        return formatDate (d, "yyMM", timeZone);
    }
}