001    /**
002     * ========================================
003     * JFreeReport : a free Java report library
004     * ========================================
005     *
006     * Project Info:  http://reporting.pentaho.org/
007     *
008     * (C) Copyright 2000-2007, by Object Refinery Limited, Pentaho Corporation and Contributors.
009     *
010     * This library is free software; you can redistribute it and/or modify it under the terms
011     * of the GNU Lesser General Public License as published by the Free Software Foundation;
012     * either version 2.1 of the License, or (at your option) any later version.
013     *
014     * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
015     * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
016     * See the GNU Lesser General Public License for more details.
017     *
018     * You should have received a copy of the GNU Lesser General Public License along with this
019     * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
020     * Boston, MA 02111-1307, USA.
021     *
022     * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
023     * in the United States and other countries.]
024     *
025     * ------------
026     * $Id: ExpressionReadHandler.java 3525 2007-10-16 11:43:48Z tmorgner $
027     * ------------
028     * (C) Copyright 2000-2005, by Object Refinery Limited.
029     * (C) Copyright 2005-2007, by Pentaho Corporation.
030     */
031    package org.jfree.report.modules.factories.report.flow;
032    
033    import org.jfree.xmlns.parser.StringReadHandler;
034    import org.jfree.xmlns.parser.XmlReadHandler;
035    import org.xml.sax.Attributes;
036    import org.xml.sax.SAXException;
037    
038    /**
039     * Creation-Date: 09.04.2006, 13:40:08
040     *
041     * @author Thomas Morgner
042     */
043    public class ExpressionReadHandler extends AbstractExpressionReadHandler
044    {
045      private StringReadHandler nameReadHandler;
046    
047      public ExpressionReadHandler()
048      {
049      }
050    
051      /**
052       * Returns the handler for a child element.
053       *
054       * @param tagName the tag name.
055       * @param atts    the attributes.
056       * @return the handler or null, if the tagname is invalid.
057       * @throws SAXException       if there is a parsing error.
058       * @throws XmlReaderException if there is a reader error.
059       */
060      protected XmlReadHandler getHandlerForChild(final String uri,
061                                                  final String tagName,
062                                                  final Attributes atts)
063              throws SAXException
064      {
065        if (isSameNamespace(uri) == false)
066        {
067          return null;
068        }
069        if ("name".equals(tagName))
070        {
071          nameReadHandler = new StringReadHandler();
072          return nameReadHandler;
073        }
074        return super.getHandlerForChild(uri, tagName, atts);
075      }
076    
077      /**
078       * Done parsing.
079       *
080       * @throws SAXException       if there is a parsing error.
081       * @throws XmlReaderException if there is a reader error.
082       */
083      protected void doneParsing() throws SAXException
084      {
085        super.doneParsing();
086        if (nameReadHandler != null)
087        {
088          getExpression().setName(nameReadHandler.getResult());
089        }
090      }
091    }