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/******************************************************************************
 * JBoss, a division of Red Hat                                               *
 * Copyright 2009, Red Hat Middleware, LLC, and individual                    *
 * contributors as indicated by the @authors tag. See the                     *
 * copyright.txt in the distribution for a full listing of                    *
 * individual contributors.                                                   *
 *                                                                            *
 * This 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 software 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 software; if not, write to the Free                *
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA         *
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.                   *
 ******************************************************************************/
package org.gatein.common.text;

/**
 * Defines an interface for encoding chars.
 *
 * @author Julien Viet
 * @version $Revision: 1.1 $
 */
public interface CharEncoder
{
   /**
    * @param c      the char to encode
    * @param writer the writer to use
    * @throws IllegalArgumentException if any argument is null
    * @throws EncodingException        an encoding exception
    */
   void encode(char c, CharWriter writer) throws IllegalArgumentException, EncodingException;

   /**
    * @param chars  the chars to encode
    * @param off    the offset in the char array
    * @param len    the lenght of chars to encode
    * @param writer the writer to use
    * @throws IllegalArgumentException if any argument is null or if the bounds not valid in the provided array
    * @throws EncodingException        an encoding exception
    */
   void encode(char[] chars, int off, int len, CharWriter writer) throws IllegalArgumentException, EncodingException;

   /**
    * @param chars  the chars to encode
    * @param writer the writer to use
    * @throws IllegalArgumentException if any argument is null
    * @throws EncodingException        an encoding exception
    */
   void encode(char[] chars, CharWriter writer) throws IllegalArgumentException, EncodingException;

   /**
    * @param s      the sequence to encode
    * @param writer the writer to use
    * @throws IllegalArgumentException if any argument is null
    * @throws EncodingException        an encoding exception
    */
   void encode(CharSequence s, CharWriter writer) throws IllegalArgumentException, EncodingException;

   /**
    * @param string the String to encode
    * @return the encoded String
    * @throws IllegalArgumentException if the specified String is null
    */
   String encode(String string) throws IllegalArgumentException;
}