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1: /* ======================================================================== 2: * JCommon : a free general purpose class library for the Java(tm) platform 3: * ======================================================================== 4: * 5: * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors. 6: * 7: * Project Info: http://www.jfree.org/jcommon/index.html 8: * 9: * This library is free software; you can redistribute it and/or modify it 10: * under the terms of the GNU Lesser General Public License as published by 11: * the Free Software Foundation; either version 2.1 of the License, or 12: * (at your option) any later version. 13: * 14: * This library is distributed in the hope that it will be useful, but 15: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 16: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 17: * License for more details. 18: * 19: * You should have received a copy of the GNU Lesser General Public 20: * License along with this library; if not, write to the Free Software 21: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 22: * USA. 23: * 24: * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 25: * in the United States and other countries.] 26: * 27: * ---------------------- 28: * Base64ReadHandler.java 29: * ---------------------- 30: * (C)opyright 2003, 2004, by Thomas Morgner and Contributors. 31: * 32: * Original Author: Thomas Morgner; 33: * Contributor(s): David Gilbert (for Object Refinery Limited); 34: * 35: * $Id: Base64ReadHandler.java,v 1.4 2005/11/08 14:16:51 mungady Exp $ 36: * 37: * Changes 38: * ------- 39: * 11-Feb-2004 : Added standard header and Javadocs (DG); 40: * 41: */ 42: 43: package org.jfree.xml.parser; 44: 45: import java.io.ByteArrayInputStream; 46: import java.io.IOException; 47: import java.io.ObjectInputStream; 48: 49: import org.jfree.xml.util.Base64; 50: import org.xml.sax.SAXException; 51: 52: /** 53: * A read handler for Base64 encoded elements. 54: * 55: * @deprecated base64 encoded elements are no longer supported ... 56: */ 57: public class Base64ReadHandler extends AbstractXmlReadHandler { 58: 59: /** The encoded object. */ 60: private String encodedObject; 61: 62: /** 63: * Creates a new handler. 64: */ 65: public Base64ReadHandler() { 66: super(); 67: } 68: 69: /** 70: * Process character data. 71: * 72: * @param ch the character buffer. 73: * @param start the start index. 74: * @param length the number of characters. 75: * 76: * @throws SAXException ???. 77: */ 78: public void characters(final char[] ch, final int start, final int length) 79: throws SAXException { 80: this.encodedObject = new String(ch, start, length); 81: } 82: 83: /** 84: * Returns the object under construction. 85: * 86: * @return the object 87: * 88: * @throws XmlReaderException ???. 89: */ 90: public Object getObject() throws XmlReaderException { 91: try { 92: final byte[] bytes = Base64.decode(this.encodedObject.toCharArray()); 93: final ObjectInputStream in = 94: new ObjectInputStream(new ByteArrayInputStream(bytes)); 95: return in.readObject(); 96: } 97: catch (IOException e) { 98: throw new XmlReaderException("Can't read class for <" + getTagName() + ">", e); 99: } 100: catch (ClassNotFoundException e) { 101: throw new XmlReaderException("Class not found for <" + getTagName() + ">", e); 102: } 103: } 104: }