2 * Sone - GetPagePlugin.java - Copyright © 2010 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;
22 import net.pterodactylus.sone.web.page.Page.Request;
23 import net.pterodactylus.util.template.Plugin;
24 import net.pterodactylus.util.template.TemplateContext;
27 * Extracts a page number from a {@link Request}’s parameters and stores it in
28 * the {@link TemplateContext}.
30 * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
32 public class GetPagePlugin implements Plugin {
38 public void execute(TemplateContext templateContext, Map<String, String> parameters) {
39 String requestKey = parameters.get("request");
40 String parameter = parameters.get("parameter");
41 String pageKey = parameters.get("key");
43 if (requestKey == null) {
44 requestKey = "request";
46 if (parameter == null) {
49 if (pageKey == null) {
53 Request request = (Request) templateContext.get(requestKey);
54 String pageString = request.getHttpRequest().getParam(parameter);
57 page = Integer.parseInt(pageString);
58 } catch (NumberFormatException nfe1) {
61 templateContext.set(pageKey, page);