/*
* Created on Nov 12, 2004
*
* This file is part of susimail project, see http://susi.i2p/
*
* Copyright (C) 2004-2005 <susi23@mail.i2p>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Revision: 1.4 $
*/
package i2p.susi.webmail.encoding;
import i2p.susi.debug.Debug;
import i2p.susi.util.Config;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
/**
* Manager class to handle content transfer encodings.
* @author susi
*/
public class EncodingFactory {
private static final String CONFIG_ENCODING = "encodings";
private static final String DEFAULT_ENCODINGS = "i2p.susi.webmail.encoding.HeaderLine;i2p.susi.webmail.encoding.QuotedPrintable;i2p.susi.webmail.encoding.Base64;i2p.susi.webmail.encoding.SevenBit;i2p.susi.webmail.encoding.EightBit;i2p.susi.webmail.encoding.HTML";
private static final Map<String, Encoding> encodings;
static {
encodings = new HashMap<String, Encoding>();
// Let's not give the user a chance to break things
//String list = Config.getProperty( CONFIG_ENCODING );
String list = DEFAULT_ENCODINGS;
if( list != null ) {
String[] classNames = list.split( ";" );
for( int i = 0; i < classNames.length; i++ ) {
try {
Class<?> c = Class.forName( classNames[i] );
Encoding e = (Encoding) (c.getDeclaredConstructor().newInstance());
encodings.put( e.getName(), e );
Debug.debug( Debug.DEBUG, "Registered " + e.getClass().getName() );
}
catch (Exception e) {
Debug.debug( Debug.ERROR, "Error loading class '" + classNames[i] + "', reason: " + e.getClass().getName() );
}
}
}
}
/**
* Retrieve instance of an encoder for a supported encoding (or null).
*
* @param name name of encoding (e.g. quoted-printable)
*
* @return Encoder instance
*/
public static Encoding getEncoding( String name )
{
return name != null && name.length() > 0 ? encodings.get( name ) : null;
}
/**
* Returns list of available encodings;
*
* @return List of encodings
*/
public static Set<String> availableEncodings()
{
return encodings.keySet();
}
}