applicationutilities.java

来自「SUN公司发布的SmartTicket 2.0蓝图」· Java 代码 · 共 224 行

/*
 * Copyright 2001, 2002, 2003 Sun Microsystems, Inc. All Rights Reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * - Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * - Redistribution 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.
 * Neither the name of Sun Microsystems, Inc., the 'Java Smart Ticket
 * Sample Application', 'Java', 'Java'-based names, or the names of
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * Java Smart Ticket Sample Application 1.2 graphics and images may not
 * be reproduced in any form, in whole or in part, by any means without
 * prior written authorization of Sun and its licensors, if any.
 * This software is provided "AS IS," without a warranty of any kind. ALL
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
 * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND
 * ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES OR LIABILITIES
 * SUFFERED BY LICENSEE AS A RESULT OF OR RELATING TO USE, MODIFICATION
 * OR DISTRIBUTION OF THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL
 * SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA,
 * OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR
 * PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF
 * LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE,
 * EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 * You acknowledge that Software is not designed, licensed or intended
 * for use in the design, construction, operation or maintenance of any
 * nuclear facility.
 * $Id: ApplicationUtilities.java,v 1.2 2003/05/29 06:36:41 ro89390 Exp $
 */
package com.sun.j2me.blueprints.smartticket.client.midp.util;

import java.util.*;

final public class ApplicationUtilities {
    private ApplicationUtilities() {}

    public static String getCreditCardExpirationDate(int month, int year) {
        StringBuffer buf = new StringBuffer();

        switch (month) {

        case Calendar.JANUARY:
            buf.append("01");

            break;

        case Calendar.FEBRUARY:
            buf.append("02");

            break;

        case Calendar.MARCH:
            buf.append("03");

            break;

        case Calendar.APRIL:
            buf.append("04");

            break;

        case Calendar.MAY:
            buf.append("05");

            break;

        case Calendar.JUNE:
            buf.append("06");

            break;

        case Calendar.JULY:
            buf.append("07");

            break;

        case Calendar.AUGUST:
            buf.append("08");

            break;

        case Calendar.SEPTEMBER:
            buf.append("09");

            break;

        case Calendar.OCTOBER:
            buf.append("10");

            break;

        case Calendar.NOVEMBER:
            buf.append("11");

            break;

        case Calendar.DECEMBER:
            buf.append("12");

            break;

        default:
            throw new IllegalArgumentException();
        }

        buf.append('/');

        String yearString = String.valueOf(year);

        if (yearString.length() != 4) {
            throw new IllegalArgumentException();
        } 

        buf.append(yearString);

        return buf.toString();
    } 

    public static int getCreditCardExpirationMonth(String date) {
        if (date.length() != 7 || date.indexOf('/') != 2) {
            throw new IllegalArgumentException("Date not formatted properly");
        } 

        try {
            String monthString = date.substring(0, 2);

            if (monthString.equals("01")) {
                return Calendar.JANUARY;
            } else if (monthString.equals("02")) {
                return Calendar.FEBRUARY;
            } else if (monthString.equals("03")) {
                return Calendar.MARCH;
            } else if (monthString.equals("04")) {
                return Calendar.APRIL;
            } else if (monthString.equals("05")) {
                return Calendar.MAY;
            } else if (monthString.equals("06")) {
                return Calendar.JUNE;
            } else if (monthString.equals("07")) {
                return Calendar.JULY;
            } else if (monthString.equals("08")) {
                return Calendar.AUGUST;
            } else if (monthString.equals("09")) {
                return Calendar.SEPTEMBER;
            } else if (monthString.equals("10")) {
                return Calendar.OCTOBER;
            } else if (monthString.equals("11")) {
                return Calendar.NOVEMBER;
            } else if (monthString.equals("12")) {
                return Calendar.DECEMBER;
            } else {
                throw new IllegalArgumentException("Invalid date");
            } 
        } catch (NumberFormatException nfe) {
            throw new IllegalArgumentException(nfe.getMessage());
        } 
    } 

    public static int getCreditCardExpirationYear(String date) {
        if (date.length() != 7 || date.indexOf('/') != 2) {
            throw new IllegalArgumentException("Date not formatted properly");
        } 

        try {
            return Integer.parseInt(date.substring(3));
        } catch (NumberFormatException nfe) {
            throw new IllegalArgumentException(nfe.getMessage());
        } 
    } 

    public static String showTimeToString(int[] showTime) {
        StringBuffer buf = new StringBuffer();

        showTimeToStringBuffer(showTime, buf);

        return buf.toString();
    } 

    public static void showTimeToStringBuffer(int[] showTime, 
                                              StringBuffer buf) {
        // Day.
        if (showTime[0] == Calendar.MONDAY) {
            buf.append("M ");
        } else if (showTime[0] == Calendar.TUESDAY) {
            buf.append("Tu ");
        } else if (showTime[0] == Calendar.WEDNESDAY) {
            buf.append("W ");
        } else if (showTime[0] == Calendar.THURSDAY) {
            buf.append("Th ");
        } else if (showTime[0] == Calendar.FRIDAY) {
            buf.append("F ");
        } else if (showTime[0] == Calendar.SATURDAY) {
            buf.append("Sa ");
        } else if (showTime[0] == Calendar.SUNDAY) {
            buf.append("Su ");
        } 

        // Hours.
        if (showTime[1] < 10) {
            buf.append('0');
            buf.append(showTime[1]);
        } else {
            buf.append(showTime[1]);
        } 

        // Minutes.
        if (showTime[2] < 10) {
            buf.append('0');
            buf.append(showTime[2]);
        } else {
            buf.append(showTime[2]);
        } 
    } 

}