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Ajax4jsf is an open source extension to the JavaServer Faces standard that adds AJAX capability to JSF applications without requiring the writing of any JavaScript.
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/*
 *  Java HTML Tidy - JTidy
 *  HTML parser and pretty printer
 *
 *  Copyright (c) 1998-2000 World Wide Web Consortium (Massachusetts
 *  Institute of Technology, Institut National de Recherche en
 *  Informatique et en Automatique, Keio University). All Rights
 *  Reserved.
 *
 *  Contributing Author(s):
 *
 *     Dave Raggett 
 *     Andy Quick  (translation to Java)
 *     Gary L Peskin  (Java development)
 *     Sami Lempinen  (release management)
 *     Fabrizio Giustina 
 *
 *  The contributing author(s) would like to thank all those who
 *  helped with testing, bug fixes, and patience.  This wouldn't
 *  have been possible without all of you.
 *
 *  COPYRIGHT NOTICE:
 * 
 *  This software and documentation is provided "as is," and
 *  the copyright holders and contributing author(s) make no
 *  representations or warranties, express or implied, including
 *  but not limited to, warranties of merchantability or fitness
 *  for any particular purpose or that the use of the software or
 *  documentation will not infringe any third party patents,
 *  copyrights, trademarks or other rights. 
 *
 *  The copyright holders and contributing author(s) will not be
 *  liable for any direct, indirect, special or consequential damages
 *  arising out of any use of the software or documentation, even if
 *  advised of the possibility of such damage.
 *
 *  Permission is hereby granted to use, copy, modify, and distribute
 *  this source code, or portions hereof, documentation and executables,
 *  for any purpose, without fee, subject to the following restrictions:
 *
 *  1. The origin of this source code must not be misrepresented.
 *  2. Altered versions must be plainly marked as such and must
 *     not be misrepresented as being the original source.
 *  3. This Copyright notice may not be removed or altered from any
 *     source or altered source distribution.
 * 
 *  The copyright holders and contributing author(s) specifically
 *  permit, without fee, and encourage the use of this source code
 *  as a component for supporting the Hypertext Markup Language in
 *  commercial products. If you use this source code in a product,
 *  acknowledgment is not required but would be appreciated.
 *
 */
package org.ajax4jsf.org.w3c.tidy;

import java.io.InputStream;
import java.io.Reader;
import java.io.UnsupportedEncodingException;

import org.ajax4jsf.framework.util.message.Messages;


/**
 * Tidy Input factory.
 * @author Fabrizio Giustina
 * @version $Revision: 1.2 $ ($Author: slava_kabanovich $)
 */
public final class StreamInFactory
{

    /**
     * Don't instantiate.
     */
    private StreamInFactory()
    {
        // unused
    }

    /**
     * Returns the appropriate StreamIn implementation.
     * @param config configuration instance
     * @param stream input stream
     * @return StreamIn instance
     */
    public static StreamIn getStreamIn(Configuration config, Object in)
    {
    	if (in instanceof Reader) {
            return new StreamInJavaImpl((Reader) in, config.tabsize);			
		} else if (in instanceof String) {
            return new StreamInJavaImpl((String) in, config.tabsize);			
		} else if (in instanceof InputStream) {			
        try
        {
            return new StreamInJavaImpl((InputStream)in, config.getInCharEncodingName(), config.tabsize);
        }
        catch (UnsupportedEncodingException e)
        {
            throw new RuntimeException(Messages.getMessage(Messages.UNSUPPORTED_ENCODING_ERROR, e.getMessage()));
        }
		} else {
            throw new RuntimeException(Messages.getMessage(Messages.UNSUPPORTED_INPUT_SOURCE_ERROR, in.getClass().getName()));			
		}
    }
}