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: DataFactoryReadHandlerFactory.java,v 1.3 2007/04/01 18:49:26 taqua Exp $
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.base;
033
034 import java.util.Iterator;
035
036 import org.jfree.report.JFreeReportBoot;
037 import org.jfree.util.Configuration;
038 import org.jfree.xmlns.parser.AbstractReadHandlerFactory;
039
040 /**
041 * Creation-Date: 27.11.2006, 11:48:02
042 *
043 * @author Thomas Morgner
044 */
045 public class DataFactoryReadHandlerFactory extends AbstractReadHandlerFactory
046 {
047
048 private static final String PREFIX_SELECTOR =
049 "org.jfree.report.modules.factories.data.data-factory-prefix.";
050
051 private static DataFactoryReadHandlerFactory readHandlerFactory;
052
053 public DataFactoryReadHandlerFactory()
054 {
055 }
056
057 protected Class getTargetClass()
058 {
059 return DataFactoryReadHandler.class;
060 }
061
062 public static synchronized DataFactoryReadHandlerFactory getInstance()
063 {
064 if (DataFactoryReadHandlerFactory.readHandlerFactory == null)
065 {
066 DataFactoryReadHandlerFactory.readHandlerFactory = new DataFactoryReadHandlerFactory();
067 final Configuration config = JFreeReportBoot.getInstance().getGlobalConfig();
068 final Iterator propertyKeys = config.findPropertyKeys(DataFactoryReadHandlerFactory.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 DataFactoryReadHandlerFactory.readHandlerFactory.configure(config, value);
076 }
077 }
078 }
079 return DataFactoryReadHandlerFactory.readHandlerFactory;
080 }
081 }