ianacharset.java

WAP协议栈的JAVA实现

/**
 * JWAP - A Java Implementation of the WAP Protocols
 * Copyright (C) 2001-2004 Niko Bender
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package net.sourceforge.jwap.util.wbxml;

import java.util.Enumeration;
import java.util.Hashtable;


/**
 * This class represents the collection of character sets defined by IANA (www.iana.org)
 * The official names for the character sets are stored against the MIBenum value which is a
 * unique value for use in MIBs to identify coded character sets.
 * 
 * @author Suvarna
 */
public class IANACharSet {
    public static Hashtable charSet = new Hashtable();

    static {
        charSet.put("UTF-8", new Integer(106));
        charSet.put("UTF-16", new Integer(1015));
        charSet.put("UTF-32", new Integer(1017));
    }

    public static int getMIBEnum(String encodingName) {
        return ((Integer) charSet.get(encodingName)).intValue();
    }

    public static String getEncoding(int mibNumber) {
        Enumeration enumeration = charSet.keys();

        while (enumeration.hasMoreElements()) {
            String encoding = (String) enumeration.nextElement();

            if (((Integer) charSet.get(encoding)).intValue() == mibNumber) {
                return encoding;
            }
        }

        return "UTF-8";
    }
}