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: StaticDataSourceReadHandler.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.beans;
033
034 import java.util.ArrayList;
035
036 import org.jfree.xmlns.parser.AbstractXmlReadHandler;
037 import org.jfree.xmlns.parser.PropertyReadHandler;
038 import org.jfree.xmlns.parser.XmlReadHandler;
039 import org.jfree.report.modules.factories.data.base.DataFactoryReadHandler;
040 import org.jfree.report.modules.data.beans.NamedStaticReportDataFactory;
041 import org.jfree.report.ReportDataFactory;
042 import org.xml.sax.Attributes;
043 import org.xml.sax.SAXException;
044
045 /**
046 * Creation-Date: 07.04.2006, 17:47:53
047 *
048 * @author Thomas Morgner
049 */
050 public class StaticDataSourceReadHandler extends AbstractXmlReadHandler
051 implements DataFactoryReadHandler
052 {
053 private ArrayList queries;
054 private ReportDataFactory dataFactory;
055
056 public StaticDataSourceReadHandler()
057 {
058 queries = new ArrayList();
059 }
060
061 /**
062 * Returns the handler for a child element.
063 *
064 * @param tagName the tag name.
065 * @param atts the attributes.
066 * @return the handler or null, if the tagname is invalid.
067 * @throws org.xml.sax.SAXException if there is a parsing error.
068 * @throws XmlReaderException if there is a reader error.
069 */
070 protected XmlReadHandler getHandlerForChild(final String uri,
071 final String tagName,
072 final Attributes atts)
073 throws SAXException
074 {
075 if (isSameNamespace(uri) == false)
076 {
077 return null;
078 }
079
080 if (tagName.equals("query"))
081 {
082 XmlReadHandler queryReadHandler = new PropertyReadHandler();
083 queries.add(queryReadHandler);
084 return queryReadHandler;
085 }
086 return null;
087 }
088
089 /**
090 * Done parsing.
091 *
092 * @throws org.xml.sax.SAXException if there is a parsing error.
093 * @throws XmlReaderException if there is a reader error.
094 */
095 protected void doneParsing() throws SAXException
096 {
097 final NamedStaticReportDataFactory srdf = new NamedStaticReportDataFactory();
098 for (int i = 0; i < queries.size(); i++)
099 {
100 final PropertyReadHandler handler = (PropertyReadHandler) queries.get(i);
101 srdf.setQuery(handler.getName(), handler.getResult());
102 }
103
104 srdf.setContentBase(getRootHandler().getSource());
105 dataFactory = srdf;
106 }
107
108 /**
109 * Returns the object for this element or null, if this element does not
110 * create an object.
111 *
112 * @return the object.
113 * @throws XmlReaderException if there is a parsing error.
114 */
115 public Object getObject() throws SAXException
116 {
117 return dataFactory;
118 }
119
120 public ReportDataFactory getDataFactory()
121 {
122 return dataFactory;
123 }
124 }