001: /* ========================================================================
002: * JCommon : a free general purpose class library for the Java(tm) platform
003: * ========================================================================
004: *
005: * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
006: *
007: * Project Info: http://www.jfree.org/jcommon/index.html
008: *
009: * This library is free software; you can redistribute it and/or modify it
010: * under the terms of the GNU Lesser General Public License as published by
011: * the Free Software Foundation; either version 2.1 of the License, or
012: * (at your option) any later version.
013: *
014: * This library is distributed in the hope that it will be useful, but
015: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
016: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
017: * License for more details.
018: *
019: * You should have received a copy of the GNU Lesser General Public
020: * License along with this library; if not, write to the Free Software
021: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
022: * USA.
023: *
024: * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
025: * in the United States and other countries.]
026: *
027: * ----------------------
028: * Base64ReadHandler.java
029: * ----------------------
030: * (C)opyright 2003, 2004, by Thomas Morgner and Contributors.
031: *
032: * Original Author: Thomas Morgner;
033: * Contributor(s): David Gilbert (for Object Refinery Limited);
034: *
035: * $Id: Base64ReadHandler.java,v 1.4 2005/11/08 14:16:51 mungady Exp $
036: *
037: * Changes
038: * -------
039: * 11-Feb-2004 : Added standard header and Javadocs (DG);
040: *
041: */
042:
043: package org.jfree.xml.parser;
044:
045: import java.io.ByteArrayInputStream;
046: import java.io.IOException;
047: import java.io.ObjectInputStream;
048:
049: import org.jfree.xml.util.Base64;
050: import org.xml.sax.SAXException;
051:
052: /**
053: * A read handler for Base64 encoded elements.
054: *
055: * @deprecated base64 encoded elements are no longer supported ...
056: */
057: public class Base64ReadHandler extends AbstractXmlReadHandler {
058:
059: /** The encoded object. */
060: private String encodedObject;
061:
062: /**
063: * Creates a new handler.
064: */
065: public Base64ReadHandler() {
066: super ();
067: }
068:
069: /**
070: * Process character data.
071: *
072: * @param ch the character buffer.
073: * @param start the start index.
074: * @param length the number of characters.
075: *
076: * @throws SAXException ???.
077: */
078: public void characters(final char[] ch, final int start,
079: final int length) throws SAXException {
080: this .encodedObject = new String(ch, start, length);
081: }
082:
083: /**
084: * Returns the object under construction.
085: *
086: * @return the object
087: *
088: * @throws XmlReaderException ???.
089: */
090: public Object getObject() throws XmlReaderException {
091: try {
092: final byte[] bytes = Base64.decode(this .encodedObject
093: .toCharArray());
094: final ObjectInputStream in = new ObjectInputStream(
095: new ByteArrayInputStream(bytes));
096: return in.readObject();
097: } catch (IOException e) {
098: throw new XmlReaderException("Can't read class for <"
099: + getTagName() + ">", e);
100: } catch (ClassNotFoundException e) {
101: throw new XmlReaderException("Class not found for <"
102: + getTagName() + ">", e);
103: }
104: }
105: }
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