2 * Sone - L10nFilter.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.freenet;
20 import java.text.MessageFormat;
21 import java.util.ArrayList;
22 import java.util.List;
23 import java.util.Locale;
26 import net.pterodactylus.util.template.Filter;
27 import net.pterodactylus.util.template.TemplateContext;
28 import freenet.l10n.BaseL10n;
31 * {@link Filter} implementation replaces {@link String} values with their
32 * translated equivalents.
34 * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
36 public class L10nFilter implements Filter {
38 /** The l10n handler. */
39 private final BaseL10n l10n;
42 * Creates a new L10n filter.
47 public L10nFilter(BaseL10n l10n) {
55 public String format(TemplateContext templateContext, Object data, Map<String, String> parameters) {
56 if (parameters.isEmpty()) {
57 return l10n.getString(String.valueOf(data));
59 List<Object> parameterValues = new ArrayList<Object>();
60 int parameterIndex = 0;
61 while (parameters.containsKey(String.valueOf(parameterIndex))) {
62 Object value = parameters.get(String.valueOf(parameterIndex));
63 if (((String) value).startsWith("=")) {
64 value = ((String) value).substring(1);
66 value = templateContext.get((String) value);
68 parameterValues.add(value);
71 return new MessageFormat(l10n.getString(String.valueOf(data)), new Locale(l10n.getSelectedLanguage().shortCode)).format(parameterValues.toArray());