01: /*
02: * file_write_date.java
03: *
04: * Copyright (C) 2003-2004 Peter Graves
05: * $Id: file_write_date.java,v 1.2 2004/01/07 19:02:06 piso Exp $
06: *
07: * This program is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU General Public License
09: * as published by the Free Software Foundation; either version 2
10: * of the License, or (at your option) any later version.
11: *
12: * This program is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15: * GNU General Public License for more details.
16: *
17: * You should have received a copy of the GNU General Public License
18: * along with this program; if not, write to the Free Software
19: * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20: */
21:
22: package org.armedbear.lisp;
23:
24: import java.io.File;
25:
26: // ### file-write-date
27: public final class file_write_date extends Primitive1 {
28: private file_write_date() {
29: super ("file-write-date");
30: }
31:
32: public LispObject execute(LispObject arg) throws ConditionThrowable {
33: Pathname pathname = Pathname.coerceToPathname(arg);
34: if (pathname.isWild())
35: signal(new FileError("Bad place for a wild pathname."));
36: File file = Utilities.getFile(pathname);
37: long lastModified = file.lastModified();
38: if (lastModified == 0)
39: return NIL;
40: return number(lastModified / 1000 + 2208988800L);
41: }
42:
43: private static final Primitive1 FILE_WRITE_DATE = new file_write_date();
44: }
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