Subversion Repositories mkgmap

/*
 * Copyright (C) 2007 Steve Ratcliffe
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2 as
 *  published by the Free Software Foundation.
 *
 *  This program 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 General Public License for more details.
 *
 *
 * Author: Steve Ratcliffe
 * Create date: 31-Oct-2007
 */
package uk.me.parabola.imgfmt.app.labelenc;

import java.nio.charset.Charset;
import java.util.Locale;

/**
 * Convert text to a specified charset.  This is used when you give a
 * charset name on the command line to convert to.
 *
 * @author Steve Ratcliffe
 */
public class AnyCharsetEncoder extends BaseEncoder implements CharacterEncoder {

        private final Charset charSet;

        public AnyCharsetEncoder(String cs) {
                prepareForCharacterSet(cs);
                if (isCharsetSupported())
                        charSet = Charset.forName(cs);
                else
                        charSet = null;
        }

        public EncodedText encodeText(String text) {
                if (text == null)
                        return NO_TEXT;
               
                if (!isCharsetSupported())
                        return simpleEncode(text);

                String ucText;
                if (isUpperCase())
                        ucText = text.toUpperCase(Locale.ENGLISH);
                else
                        ucText = text;

                byte[] bytes = ucText.getBytes(charSet);
                byte[] res = new byte[bytes.length + 1];
                System.arraycopy(bytes, 0, res, 0, bytes.length);

                return new EncodedText(res, res.length);
        }
}