/* Copyright 2002-2005 Elliotte Rusty Harold
   
   This library is free software; you can redistribute it and/or modify
   it under the terms of version 2.1 of the GNU Lesser General Public 
   License as published by the Free Software Foundation.
   
   This library 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 library. If not, see
   <https://www.gnu.org/licenses/>.
   
   You can contact Elliotte Rusty Harold by sending e-mail to
   elharo@ibiblio.org. Please include the word "XOM" in the
   subject line. The XOM home page is located at https://xom.nu/
*/

package nu.xom;

/**
 * <p>
 * Thrown when serializing documents that contain characters not 
 * available in the current encoding, and which cannot be escaped 
 * (for instance, because they're in an element name or processing
 * instruction data). This can never happen if the encoding is UTF-8 
 * or UTF-16.
 * </p>
 * 
 * @author Elliotte Rusty Harold
 * @version 1.1b3
 *
 */
public class UnavailableCharacterException extends XMLException {


    private static final long serialVersionUID = -8280912714497572798L;
    
    private final char   unavailableCharacter;
    private final String encoding;
    
    
    /**
     * <p>
     * Creates a new <code>UnavailableCharacterException</code>.
     * </p>
     * 
     * @param character the character which caused the exception
     * @param encoding the encoding which does not contain the character
     */
    public UnavailableCharacterException(char character, String encoding) {
    
        super("Cannot use the character " + character + " (&#x" 
          + Integer.toHexString(character).toUpperCase() + ";) in the " 
          + encoding + " encoding.");
        this.unavailableCharacter = character;
        this.encoding = encoding;
        
    }

    
    /**
     * <p>
     * Returns the character which could not be written
     * in the current encoding.
     * </p>

     * @return the character which caused the exception
     */
    public char getCharacter() {
        return this.unavailableCharacter;
    }
    
    
    /**
     * <p>
     * Returns the encoding that does not support the character.
     * </p>
     *
     * @return the encoding used by the serializer when the exception
     *    was thrown
     */
    public String getEncoding() {
        return this.encoding;
    }
    
    
}