01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * Resin Open Source is free software; you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License as published by
11: * the Free Software Foundation; either version 2 of the License, or
12: * (at your option) any later version.
13: *
14: * Resin Open Source 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, or any warranty
17: * of NON-INFRINGEMENT. See the GNU General Public License for more
18: * details.
19: *
20: * You should have received a copy of the GNU General Public License
21: * along with Resin Open Source; if not, write to the
22: * Free SoftwareFoundation, Inc.
23: * 59 Temple Place, Suite 330
24: * Boston, MA 02111-1307 USA
25: *
26: * @author Scott Ferguson
27: */
28:
29: package com.caucho.jstl;
30:
31: import com.caucho.util.L10N;
32:
33: import javax.servlet.jsp.JspException;
34: import javax.servlet.jsp.tagext.Tag;
35: import javax.servlet.jsp.tagext.TagSupport;
36:
37: /**
38: * Tag representing an "otherwise" condition.
39: */
40: public class OtherwiseTag extends TagSupport {
41: private static L10N L = new L10N(OtherwiseTag.class);
42:
43: /**
44: * Process the tag.
45: */
46: public int doStartTag() throws JspException {
47: Tag parent = getParent();
48:
49: if (!(parent instanceof ChooseTag))
50: throw new JspException(
51: L
52: .l("c:otherwise tag must be contained in a c:choose tag."));
53:
54: ChooseTag chooseTag = (ChooseTag) parent;
55:
56: if (chooseTag.isMatch())
57: return SKIP_BODY;
58:
59: chooseTag.setMatch();
60:
61: return EVAL_BODY_INCLUDE;
62: }
63: }
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