content: /* ========================================================================
   * JCommon : a free general purpose class library for the Java(tm) platform
   * ========================================================================
   *
   * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
   * 
   * Project Info:  http://www.jfree.org/jcommon/index.html
   *
   * This library 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 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, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
   * USA.  
   *
   * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
   * in the United States and other countries.]
   * 
   * ----------------------
   * Base64ReadHandler.java
   * ----------------------
   * (C)opyright 2003, 2004, by Thomas Morgner and Contributors.
   *
   * Original Author:  Thomas Morgner;
   * Contributor(s):   David Gilbert (for Object Refinery Limited);
   *
   * $Id: Base64ReadHandler.java,v 1.4 2005/11/08 14:16:51 mungady Exp $
   *
   * Changes 
   * -------
   * 11-Feb-2004 : Added standard header and Javadocs (DG);
   *  
   */
  
  package org.jfree.xml.parser;
  
  import java.io.ByteArrayInputStream;
  import java.io.IOException;
  import java.io.ObjectInputStream;
  
  import org.jfree.xml.util.Base64;
  import org.xml.sax.SAXException;
  
  /**
   * A read handler for Base64 encoded elements.
   * 
   * @deprecated base64 encoded elements are no longer supported ...
   */
  public class Base64ReadHandler extends AbstractXmlReadHandler {
      
      /** The encoded object. */
      private String encodedObject;
      
      /**
       * Creates a new handler.
       */
      public Base64ReadHandler() {
          super();
      }
  
      /**
       * Process character data.
       * 
       * @param ch  the character buffer.
       * @param start  the start index.
       * @param length  the number of characters.
       * 
       * @throws SAXException ???.
       */
      public void characters(final char[] ch, final int start, final int length)
          throws SAXException {
          this.encodedObject = new String(ch, start, length);
      }
  
      /**
       * Returns the object under construction.
       * 
       * @return the object
       * 
       * @throws XmlReaderException ???.
       */
      public Object getObject() throws XmlReaderException {
          try {
              final byte[] bytes = Base64.decode(this.encodedObject.toCharArray());
              final ObjectInputStream in =
                  new ObjectInputStream(new ByteArrayInputStream(bytes));
              return in.readObject();
          } 
          catch (IOException e) {
              throw new XmlReaderException("Can't read class for <" + getTagName() + ">", e);
          } 
          catch (ClassNotFoundException e) {
              throw new XmlReaderException("Class not found for <" + getTagName() + ">", e);
          }
      }
  }
  