showtimepattern.java

这个范例程序演示了利用j2me技术开发无线服务器支持的应用。这是一个电影票订购程序

/*
 * Copyright 2001, 2002, 2003 Sun Microsystems, Inc. All Rights Reserved.
 * Except for any files in PNG format (which are marked with the filename
 * extension ".png"), GIF format (which are marked with the filename
 * extension ".gif"), or JPEG format (which are marked with the filename
 * extension ".jpg"), redistribution and use in source and binary forms,
 * with or without modification, are permitted provided that the
 * following conditions are met:
 * - Redistribution 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.
 * You may compile, use, perform and display the following files with
 * original Java Smart Ticket Sample Application code obtained from Sun
 * Microsystems, Inc. only:
 * - files in PNG format and having the ".png" extension
 * - files in GIF format and having the ".gif" extension
 * - files in JPEG format and having the ".jpg" extension
 * You may not modify or redistribute .png, .gif, or .jpg files in any
 * form, in whole or in part, by any means without prior written
 * authorization from Sun Microsystems, Inc. and its licensors, if any.
 * 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.
 * 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
 * MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
 * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
 * DISTRIBUTING THIS 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 THIS SOFTWARE, EVEN IF
 * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 * You acknowledge that this software is not designed, licensed or
 * intended for use in the design, construction, operation or maintenance
 * of any nuclear facility.
 * $Id: ShowTimePattern.java,v 1.3 2003/03/24 22:43:10 zull Exp $
 */
package com.sun.j2me.blueprints.smartticket.server.ejb.schedule;

import java.io.*;

public class ShowTimePattern implements Serializable {
    private int minute;
    private int hour;
    private int dayOfWeek;

    public ShowTimePattern(String pattern) {
        this(parse(pattern));

        return;
    }

    private ShowTimePattern(int[] fields) {
        dayOfWeek = fields[0];
        hour = fields[1];
        minute = fields[2];

        return;
    }

    public int getMinute() {
        return minute;
    } 

    public int getHour() {
        return hour;
    } 

    public int getDayOfWeek() {
        return dayOfWeek;
    } 

    private static int[] parse(String pattern) {
        int start = 0;
        int end = 0;
        int[] fields = new int[] {
            -1, 12, 0
        };    // Initialized as "*:12:00"

        for (int j = 0; j < fields.length; j++, start = end + 1) {
            end = pattern.indexOf(':', start);

            String field = pattern.substring(start, 
                                             end >= 0 ? end 
                                             : pattern.length());

            if (!field.equals("*")) {
                try {
                    fields[j] = Integer.parseInt(field);
                } catch (NumberFormatException nfe) {
                    System.err.println("Invalid showtime format:" 
                                       + nfe.getMessage() 
                                       + ", default applied.");
                } 
            } 
        } 

        return fields;
    } 

}