01: /*
02: * ============================================================================
03: * GNU Lesser General Public License
04: * ============================================================================
05: *
06: * JasperReports - Free Java report-generating library.
07: * Copyright (C) 2001-2006 JasperSoft Corporation http://www.jaspersoft.com
08: *
09: * This library is free software; you can redistribute it and/or
10: * modify it under the terms of the GNU Lesser General Public
11: * License as published by the Free Software Foundation; either
12: * version 2.1 of the License, or (at your option) any later version.
13: *
14: * This library is distributed in the hope that it will be useful,
15: * but WITHOUT ANY WARRANTY; without even the implied warranty of
16: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17: * Lesser General Public License for more details.
18: *
19: * You should have received a copy of the GNU Lesser General Public
20: * License along with this library; if not, write to the Free Software
21: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
22: *
23: * JasperSoft Corporation
24: * 303 Second Street, Suite 450 North
25: * San Francisco, CA 94107
26: * http://www.jaspersoft.com
27: */
28: package net.sf.jasperreports.engine.xml;
29:
30: import net.sf.jasperreports.engine.JRDatasetParameter;
31: import net.sf.jasperreports.engine.JRDatasetRun;
32: import net.sf.jasperreports.engine.JRParameter;
33: import net.sf.jasperreports.engine.design.JRDesignDataset;
34: import net.sf.jasperreports.engine.design.JRDesignExpression;
35: import net.sf.jasperreports.engine.design.JRValidationException;
36: import net.sf.jasperreports.engine.design.JasperDesign;
37:
38: import org.xml.sax.Attributes;
39:
40: /**
41: * @author Lucian Chirita (lucianc@users.sourceforge.net)
42: * @version $Id: JRDatasetRunParameterExpressionFactory.java 1625 2007-03-09 17:21:31Z lucianc $
43: */
44: public class JRDatasetRunParameterExpressionFactory extends
45: JRBaseFactory {
46:
47: public Object createObject(Attributes attributes) {
48: String valueClassName = Object.class.getName();
49:
50: JRXmlLoader xmlLoader = (JRXmlLoader) digester.peek(digester
51: .getCount() - 1);
52: JasperDesign design = (JasperDesign) digester.peek(digester
53: .getCount() - 2);
54: JRDatasetRun datasetRun = (JRDatasetRun) digester.peek(1);
55:
56: JRDesignDataset dataset = (JRDesignDataset) design
57: .getDatasetMap().get(datasetRun.getDatasetName());
58: if (dataset == null) {
59: xmlLoader.addError(new JRValidationException(
60: "Unknown sub dataset "
61: + datasetRun.getDatasetName(), datasetRun));
62: } else {
63: JRDatasetParameter runParameter = (JRDatasetParameter) digester
64: .peek();
65: JRParameter param = (JRParameter) dataset
66: .getParametersMap().get(runParameter.getName());
67:
68: if (param == null) {
69: xmlLoader.addError(new JRValidationException(
70: "Unknown parameter " + runParameter.getName()
71: + " in sub dataset "
72: + datasetRun.getDatasetName(),
73: runParameter));
74: } else {
75: valueClassName = param.getValueClassName();
76: }
77: }
78:
79: JRDesignExpression expression = new JRDesignExpression();
80: expression.setValueClassName(valueClassName);
81:
82: return expression;
83: }
84: }
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