01: /**
02: * ===========================================
03: * JFreeReport : a free Java reporting library
04: * ===========================================
05: *
06: * Project Info: http://reporting.pentaho.org/
07: *
08: * (C) Copyright 2001-2007, by Object Refinery Ltd, Pentaho Corporation and Contributors.
09: *
10: * This library is free software; you can redistribute it and/or modify it under the terms
11: * of the GNU Lesser General Public License as published by the Free Software Foundation;
12: * either 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, but WITHOUT ANY WARRANTY;
15: * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
16: * See the GNU Lesser General Public License for more details.
17: *
18: * You should have received a copy of the GNU Lesser General Public License along with this
19: * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
20: * Boston, MA 02111-1307, USA.
21: *
22: * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
23: * in the United States and other countries.]
24: *
25: * ------------
26: * ExcelTableModule.java
27: * ------------
28: * (C) Copyright 2001-2007, by Object Refinery Ltd, Pentaho Corporation and Contributors.
29: */package org.jfree.report.modules.output.table.xls;
30:
31: import org.jfree.base.modules.AbstractModule;
32: import org.jfree.base.modules.ModuleInitializeException;
33: import org.jfree.base.modules.SubSystem;
34:
35: /**
36: * The module definition for the Excel table export module.
37: *
38: * @author Thomas Morgner
39: */
40: public class ExcelTableModule extends AbstractModule {
41: /**
42: * The configuration prefix when reading the configuration settings from the report
43: * configuration.
44: */
45: public static final String CONFIGURATION_PREFIX = "org.jfree.report.modules.output.table.xls";
46:
47: /**
48: * DefaultConstructor. Loads the module specification.
49: *
50: * @throws ModuleInitializeException if an error occured.
51: */
52: public ExcelTableModule() throws ModuleInitializeException {
53: loadModuleInfo();
54: }
55:
56: /**
57: * Initializes the module. Use this method to perform all initial setup operations. This
58: * method is called only once in a modules lifetime. If the initializing cannot be
59: * completed, throw a ModuleInitializeException to indicate the error,. The module will
60: * not be available to the system.
61: *
62: * @param subSystem the subSystem.
63: * @throws org.jfree.base.modules.ModuleInitializeException
64: * if an error ocurred while initializing the module.
65: */
66: public void initialize(final SubSystem subSystem)
67: throws ModuleInitializeException {
68: if (isClassLoadable("org.apache.poi.hssf.usermodel.HSSFWorkbook") == false) {
69: throw new ModuleInitializeException(
70: "Unable to load POI classes.");
71: }
72: }
73: }
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