01: /*
02: JSPWiki - a JSP-based WikiWiki clone.
03:
04: Copyright (C) 2001-2002 Janne Jalkanen (Janne.Jalkanen@iki.fi)
05:
06: This program is free software; you can redistribute it and/or modify
07: it under the terms of the GNU Lesser General Public License as published by
08: the Free Software Foundation; either version 2.1 of the License, or
09: (at your option) any later version.
10:
11: This program is distributed in the hope that it will be useful,
12: but WITHOUT ANY WARRANTY; without even the implied warranty of
13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14: GNU Lesser General Public License for more details.
15:
16: You should have received a copy of the GNU Lesser General Public License
17: along with this program; if not, write to the Free Software
18: Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19: */
20: package com.ecyrd.jspwiki.tags;
21:
22: import java.io.IOException;
23:
24: import com.ecyrd.jspwiki.WikiEngine;
25: import com.ecyrd.jspwiki.WikiPage;
26: import com.ecyrd.jspwiki.providers.ProviderException;
27:
28: /**
29: * Returns the currently requested page or attachment size.
30: *
31: * @author Janne Jalkanen
32: * @since 2.0
33: */
34: public class PageSizeTag extends WikiTagBase {
35: public final int doWikiStartTag() throws IOException {
36: WikiEngine engine = m_wikiContext.getEngine();
37: WikiPage page = m_wikiContext.getPage();
38:
39: try {
40: if (page != null) {
41: long size = page.getSize();
42:
43: if (size == -1 && engine.pageExists(page)) // should never happen with attachments
44: {
45: size = engine.getPureText(page.getName(),
46: page.getVersion()).length();
47: page.setSize(size);
48: }
49:
50: pageContext.getOut().write(Long.toString(size));
51: }
52: } catch (ProviderException e) {
53: log.warn("Providers did not work: ", e);
54: pageContext.getOut().write(
55: m_wikiContext.translate("error.page_size") + " "
56: + e.getMessage());
57: }
58:
59: return SKIP_BODY;
60: }
61: }
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