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: NodeReadHandlerFactory.java 2725 2007-04-01 18:49:29Z taqua $
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.report.base;
033    
034    import java.util.Iterator;
035    
036    import org.jfree.report.JFreeReportBoot;
037    import org.jfree.xmlns.parser.AbstractReadHandlerFactory;
038    import org.jfree.util.Configuration;
039    
040    /**
041     * Creation-Date: 27.11.2006, 11:48:02
042     *
043     * @author Thomas Morgner
044     */
045    public class NodeReadHandlerFactory extends AbstractReadHandlerFactory
046    {
047    
048      private static final String PREFIX_SELECTOR =
049          "org.jfree.report.modules.factories.report.base.node-factory-prefix.";
050    
051      private static NodeReadHandlerFactory readHandlerFactory;
052    
053      public NodeReadHandlerFactory()
054      {
055      }
056    
057      protected Class getTargetClass()
058      {
059        return NodeReadHandler.class;
060      }
061    
062      public static synchronized NodeReadHandlerFactory getInstance()
063      {
064        if (readHandlerFactory == null)
065        {
066          readHandlerFactory = new NodeReadHandlerFactory();
067          final Configuration config = JFreeReportBoot.getInstance().getGlobalConfig();
068          final Iterator propertyKeys = config.findPropertyKeys(PREFIX_SELECTOR);
069          while (propertyKeys.hasNext())
070          {
071            final String key = (String) propertyKeys.next();
072            final String value = config.getConfigProperty(key);
073            if (value != null)
074            {
075              readHandlerFactory.configure(config, value);
076            }
077          }
078        }
079        return readHandlerFactory;
080      }
081    }