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: NamedStaticReportDataFactory.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.data.beans;
033    
034    import java.util.HashMap;
035    
036    import org.jfree.report.DataSet;
037    import org.jfree.report.ReportData;
038    import org.jfree.report.ReportDataFactoryException;
039    import org.jfree.resourceloader.ResourceKey;
040    
041    /**
042     * Creation-Date: Jan 12, 2007, 2:16:00 PM
043     *
044     * @author Thomas Morgner
045     */
046    public class NamedStaticReportDataFactory extends StaticReportDataFactory
047    {
048      private ResourceKey contentBase;
049      private HashMap querymappings;
050    
051      public NamedStaticReportDataFactory()
052      {
053        querymappings = new HashMap();
054      }
055    
056      public void setQuery(final String name, final String queryString)
057      {
058        if (queryString == null)
059        {
060          querymappings.remove(name);
061        }
062        else
063        {
064          querymappings.put(name, queryString);
065        }
066      }
067    
068      /**
069       * Queries a datasource. The string 'query' defines the name of the query. The
070       * Parameterset given here may contain more data than actually needed.
071       * <p/>
072       * The dataset may change between two calls, do not assume anything!
073       *
074       * @param query
075       * @param parameters
076       * @return
077       */
078      public ReportData queryData(final String query, final DataSet parameters)
079              throws ReportDataFactoryException
080      {
081        if (query == null)
082        {
083          throw new NullPointerException("Query is null.");
084        }
085        final String realQuery = getQuery(query);
086        if (realQuery == null)
087        {
088          throw new ReportDataFactoryException("Query '" + query + "' is not recognized.");
089        }
090        return super.queryData(realQuery, parameters);
091      }
092    
093      public String getQuery(final String name)
094      {
095        return (String) querymappings.get(name);
096      }
097    
098      public String[] getQueryNames()
099      {
100        return (String[]) querymappings.keySet().toArray(
101                new String[querymappings.size()]);
102      }
103    
104      public ResourceKey getContentBase()
105      {
106        return contentBase;
107      }
108    
109      public void setContentBase(final ResourceKey contentBase)
110      {
111        this.contentBase = contentBase;
112      }
113    }