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: ConnectionReadHandlerFactory.java,v 1.2 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.sql;
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: Dec 17, 2006, 8:58:11 PM
042 *
043 * @author Thomas Morgner
044 */
045 public class ConnectionReadHandlerFactory extends AbstractReadHandlerFactory
046 {
047 private static final String PREFIX_SELECTOR =
048 "org.jfree.report.modules.factories.data.sql.connection-factory-prefix.";
049
050 private static ConnectionReadHandlerFactory readHandlerFactory;
051
052 public ConnectionReadHandlerFactory()
053 {
054 }
055
056 protected Class getTargetClass()
057 {
058 return ConnectionReadHandler.class;
059 }
060
061 public static synchronized ConnectionReadHandlerFactory getInstance()
062 {
063 if (readHandlerFactory == null)
064 {
065 readHandlerFactory = new ConnectionReadHandlerFactory();
066 final Configuration config = JFreeReportBoot.getInstance().getGlobalConfig();
067 final Iterator propertyKeys = config.findPropertyKeys(PREFIX_SELECTOR);
068 while (propertyKeys.hasNext())
069 {
070 final String key = (String) propertyKeys.next();
071 final String value = config.getConfigProperty(key);
072 if (value != null)
073 {
074 readHandlerFactory.configure(config, value);
075 }
076 }
077 }
078 return readHandlerFactory;
079 }
080
081 }