2 * Sone - ParserFilter.java - Copyright © 2011 David Roden
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 package net.pterodactylus.sone.template;
20 import java.io.IOException;
21 import java.io.StringReader;
24 import net.pterodactylus.sone.core.Core;
25 import net.pterodactylus.sone.data.Sone;
26 import net.pterodactylus.sone.text.FreenetLinkParser;
27 import net.pterodactylus.sone.text.FreenetLinkParserContext;
28 import net.pterodactylus.sone.web.page.Page.Request;
29 import net.pterodactylus.util.template.Filter;
30 import net.pterodactylus.util.template.TemplateContext;
31 import net.pterodactylus.util.template.TemplateContextFactory;
34 * Filter that filters a given text through a {@link FreenetLinkParser}.
36 * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
38 public class ParserFilter implements Filter {
41 private final Core core;
43 /** The link parser. */
44 private final FreenetLinkParser linkParser;
47 * Creates a new filter that runs its input through a
48 * {@link FreenetLinkParser}.
52 * @param templateContextFactory
53 * The context factory for rendering the parts
55 public ParserFilter(Core core, TemplateContextFactory templateContextFactory) {
57 linkParser = new FreenetLinkParser(core, templateContextFactory);
64 public Object format(TemplateContext templateContext, Object data, Map<String, String> parameters) {
65 String text = String.valueOf(data);
66 String soneKey = parameters.get("sone");
67 if (soneKey == null) {
70 Sone sone = (Sone) templateContext.get(soneKey);
72 sone = core.getSone(soneKey, false);
74 FreenetLinkParserContext context = new FreenetLinkParserContext((Request) templateContext.get("request"), sone);
76 return linkParser.parse(context, new StringReader(text));
77 } catch (IOException ioe1) {
78 /* no exceptions in a StringReader, ignore. */