/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

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/*

 * @(#)$Id: EncoderFactory.java,v 1.3 2005/09/10 19:07:33 kohsuke Exp $

 */

package com.sun.codemodel.internal.util;

import java.lang.reflect.Constructor;

import java.nio.charset.Charset;

import java.nio.charset.CharsetEncoder;

/**

 * Creates {@link CharsetEncoder} from a charset name.

 *

 * Fixes a MS1252 handling bug in JDK1.4.2.

 *

 * @author

 *     Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)

 */

public class EncoderFactory {

        public static CharsetEncoder createEncoder( String encodin ) {

        Charset cs = Charset.forName(System.getProperty("file.encoding"));

        CharsetEncoder encoder = cs.newEncoder();

        if( cs.getClass().getName().equals("sun.nio.cs.MS1252") ) {

            try {

                // at least JDK1.4.2_01 has a bug in MS1252 encoder.

                // specifically, it returns true for any character.

                // return a correct encoder to workaround this problem

                // statically binding to MS1252Encoder will cause a Link error

                // (at least in IBM JDK1.4.1)

                @SuppressWarnings("unchecked")

                Class<? extends CharsetEncoder> ms1252encoder = (Class<? extends CharsetEncoder>) Class.forName("com.sun.codemodel.internal.util.MS1252Encoder");

                Constructor<? extends CharsetEncoder> c = ms1252encoder.getConstructor(new Class[]{

                    Charset.class

                });

                return c.newInstance(new Object[]{cs});

            } catch( Throwable t ) {

                // if something funny happens, ignore it and fall back to

                // a broken MS1252 encoder. It's probably still better

                // than choking here.

                return encoder;

            }

        }

        return encoder;

    }

}