1 ////////////////////////////////////////////////////////////////////////////////
2 // MillScript: an Open Spice interpreter and batch website creation tool
3 // Copyright (C) 2001-2004 Open World Ltd
4 //
5 // This file is part of MillScript.
6 //
7 // MillScript is free software; you can redistribute it and/or modify it under
8 // the terms of the GNU General Public License as published by the Free
9 // Software Foundation; either version 2 of the License, or (at your option)
10 // any later version.
11 //
12 // MillScript is distributed in the hope that it will be useful, but WITHOUT
13 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 // more details.
16 //
17 // You should have received a copy of the GNU General Public License along with
18 // MillScript; if not, write to the Free Software Foundation, Inc., 59 Temple
19 // Place, Suite 330, Boston, MA 02111-1307 USA
20 ////////////////////////////////////////////////////////////////////////////////
21 package org.millscript.office.millscript.loaders;
22
23 import org.millscript.commons.vfs.VFile;
24 import org.millscript.commons.vfs.protocols.file.LocalFile;
25 import org.millscript.millscript.alert.Alerts;
26 import org.millscript.millscript.loaders.ValueLoader;
27 import org.millscript.office.excel.ExcelLoader;
28 import org.millscript.office.spreadsheet.workbooks.WorkbookRefImpl;
29
30 /**
31 * This class implements the MillScript Microsoft Excel loader. The specified
32 * file is loaded as a Microsoft Excel spreadsheet file, the resulting
33 * worksheet is bound to the symbol registered with this loader.
34 */
35 public final class MicrosoftExcelLoader extends ValueLoader {
36
37 /**
38 * @see org.millscript.millscript.loaders.Loader#loadValue()
39 */
40 @Override
41 public Object loadValue() {
42 if ( this.entry instanceof VFile && this.entry.exists() ) {
43 return new WorkbookRefImpl( ExcelLoader.getWorkbook( ((LocalFile) this.entry) ) );
44 } else {
45 throw(
46 Alerts.compile(
47 "Inventory entry is not a file",
48 "Properties loader can only be used to load files"
49 ).culprit( "entry", this.entry ).mishap()
50 );
51 }
52 }
53
54 }