2 * Sone - L10nFilter.java - Copyright © 2010–2016 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 javax.annotation.Nonnull;
28 import net.pterodactylus.sone.web.WebInterface;
29 import net.pterodactylus.util.template.Filter;
30 import net.pterodactylus.util.template.TemplateContext;
33 * {@link Filter} implementation replaces {@link String} values with their
34 * translated equivalents.
36 public class L10nFilter implements Filter {
38 /** The web interface. */
39 private final WebInterface webInterface;
42 * Creates a new L10n filter.
45 * The Sone web interface
47 public L10nFilter(WebInterface webInterface) {
48 this.webInterface = webInterface;
55 public String format(TemplateContext templateContext, Object data, Map<String, Object> parameters) {
56 List<Object> parameterValues = getParameters(data, parameters);
57 String text = getText(data);
58 if (parameterValues.isEmpty()) {
59 return webInterface.getL10n().getString(text);
61 return new MessageFormat(webInterface.getL10n().getString(text), new Locale(webInterface.getL10n().getSelectedLanguage().shortCode)).format(parameterValues.toArray());
65 private String getText(Object data) {
66 return (data instanceof L10nText) ? ((L10nText) data).getText() : String.valueOf(data);
70 private List<Object> getParameters(Object data, Map<String, Object> parameters) {
71 if (data instanceof L10nText) {
72 return ((L10nText) data).getParameters();
74 List<Object> parameterValues = new ArrayList<Object>();
75 int parameterIndex = 0;
76 while (parameters.containsKey(String.valueOf(parameterIndex))) {
77 Object value = parameters.get(String.valueOf(parameterIndex));
78 parameterValues.add(value);
81 return parameterValues;