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: StaticDataSourceReadHandler.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    
032    package org.jfree.report.modules.factories.data.beans;
033    
034    import java.util.ArrayList;
035    
036    import org.jfree.xmlns.parser.AbstractXmlReadHandler;
037    import org.jfree.xmlns.parser.PropertyReadHandler;
038    import org.jfree.xmlns.parser.XmlReadHandler;
039    import org.jfree.report.modules.factories.data.base.DataFactoryReadHandler;
040    import org.jfree.report.modules.data.beans.NamedStaticReportDataFactory;
041    import org.jfree.report.ReportDataFactory;
042    import org.xml.sax.Attributes;
043    import org.xml.sax.SAXException;
044    
045    /**
046     * Creation-Date: 07.04.2006, 17:47:53
047     *
048     * @author Thomas Morgner
049     */
050    public class StaticDataSourceReadHandler extends AbstractXmlReadHandler
051      implements DataFactoryReadHandler
052    {
053      private ArrayList queries;
054      private ReportDataFactory dataFactory;
055    
056      public StaticDataSourceReadHandler()
057      {
058        queries = new ArrayList();
059      }
060    
061      /**
062       * Returns the handler for a child element.
063       *
064       * @param tagName the tag name.
065       * @param atts    the attributes.
066       * @return the handler or null, if the tagname is invalid.
067       * @throws org.xml.sax.SAXException       if there is a parsing error.
068       * @throws XmlReaderException if there is a reader error.
069       */
070      protected XmlReadHandler getHandlerForChild(final String uri,
071                                                  final String tagName,
072                                                  final Attributes atts)
073              throws SAXException
074      {
075        if (isSameNamespace(uri) == false)
076        {
077          return null;
078        }
079    
080        if ("query".equals(tagName))
081        {
082          final XmlReadHandler queryReadHandler = new PropertyReadHandler();
083          queries.add(queryReadHandler);
084          return queryReadHandler;
085        }
086        return null;
087      }
088    
089      /**
090       * Done parsing.
091       *
092       * @throws org.xml.sax.SAXException       if there is a parsing error.
093       * @throws XmlReaderException if there is a reader error.
094       */
095      protected void doneParsing() throws SAXException
096      {
097        final NamedStaticReportDataFactory srdf = new NamedStaticReportDataFactory();
098        for (int i = 0; i < queries.size(); i++)
099        {
100          final PropertyReadHandler handler = (PropertyReadHandler) queries.get(i);
101          srdf.setQuery(handler.getName(), handler.getResult());
102        }
103    
104        srdf.setContentBase(getRootHandler().getSource());
105        dataFactory = srdf;
106      }
107    
108      /**
109       * Returns the object for this element or null, if this element does not
110       * create an object.
111       *
112       * @return the object.
113       * @throws XmlReaderException if there is a parsing error.
114       */
115      public Object getObject() throws SAXException
116      {
117        return dataFactory;
118      }
119    
120      public ReportDataFactory getDataFactory()
121      {
122        return dataFactory;
123      }
124    }