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: DriverConnectionReadHandler.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 package org.jfree.report.modules.factories.data.sql;
032
033 import java.util.Iterator;
034 import java.util.Map;
035 import java.util.Properties;
036
037 import org.jfree.report.modules.data.sql.DriverConnectionProvider;
038 import org.jfree.report.modules.data.sql.ConnectionProvider;
039 import org.jfree.xmlns.parser.AbstractXmlReadHandler;
040 import org.jfree.xmlns.parser.PropertiesReadHandler;
041 import org.jfree.xmlns.parser.StringReadHandler;
042 import org.jfree.xmlns.parser.XmlReadHandler;
043 import org.xml.sax.Attributes;
044 import org.xml.sax.SAXException;
045
046 /**
047 * Creation-Date: 07.04.2006, 18:09:25
048 *
049 * @author Thomas Morgner
050 */
051 public class DriverConnectionReadHandler extends AbstractXmlReadHandler
052 implements ConnectionReadHandler
053 {
054 private StringReadHandler driverReadHandler;
055 private StringReadHandler urlReadHandler;
056 private PropertiesReadHandler propertiesReadHandler;
057 private ConnectionProvider driverConnectionProvider;
058
059 public DriverConnectionReadHandler()
060 {
061 }
062
063 /**
064 * Returns the handler for a child element.
065 *
066 * @param tagName the tag name.
067 * @param atts the attributes.
068 * @return the handler or null, if the tagname is invalid.
069 * @throws SAXException if there is a parsing error.
070 * @throws XmlReaderException if there is a reader error.
071 */
072 protected XmlReadHandler getHandlerForChild(final String uri,
073 final String tagName,
074 final Attributes atts)
075 throws SAXException
076 {
077 if (isSameNamespace(uri) == false)
078 {
079 return null;
080 }
081 if ("driver".equals(tagName))
082 {
083 driverReadHandler = new StringReadHandler();
084 return driverReadHandler;
085 }
086 if ("url".equals(tagName))
087 {
088 urlReadHandler = new StringReadHandler();
089 return urlReadHandler;
090 }
091 if ("properties".equals(tagName))
092 {
093 propertiesReadHandler = new PropertiesReadHandler();
094 return propertiesReadHandler;
095 }
096 return null;
097 }
098
099 /**
100 * Done parsing.
101 *
102 * @throws SAXException if there is a parsing error.
103 * @throws XmlReaderException if there is a reader error.
104 */
105 protected void doneParsing() throws SAXException
106 {
107 final DriverConnectionProvider provider = new DriverConnectionProvider();
108 if (driverReadHandler != null)
109 {
110 provider.setDriver(driverReadHandler.getResult());
111 }
112 if (urlReadHandler != null)
113 {
114 provider.setUrl(urlReadHandler.getResult());
115 }
116 if (propertiesReadHandler != null)
117 {
118 final Properties p = (Properties) propertiesReadHandler.getObject();
119 final Iterator it = p.entrySet().iterator();
120 while (it.hasNext())
121 {
122 Map.Entry entry = (Map.Entry) it.next();
123 provider.setProperty((String) entry.getKey(), (String) entry.getValue());
124 }
125 }
126 driverConnectionProvider = provider;
127 }
128
129 /**
130 * Returns the object for this element or null, if this element does not
131 * create an object.
132 *
133 * @return the object.
134 * @throws XmlReaderException if there is a parsing error.
135 */
136 public Object getObject() throws SAXException
137 {
138 return driverConnectionProvider;
139 }
140
141 public ConnectionProvider getProvider()
142 {
143 return driverConnectionProvider;
144 }
145 }