1 /**
2 * This file Copyright (c) 2013 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.i18nsystem.proxytoys;
35
36 import com.thoughtworks.proxy.toys.decorate.Decorator;
37 import info.magnolia.i18nsystem.I18nKeyGenerator;
38 import info.magnolia.i18nsystem.LocaleProvider;
39 import info.magnolia.i18nsystem.TranslationService;
40 import java.lang.reflect.Method;
41
42 /**
43 * The {@link Decorator} which decorates methods by delegating to the given {@link TranslationService}.
44 *
45 * @param <T> the type of the decorated object.
46 */
47 public class I18nTextMethodDecorator<T> extends Decorator<T> {
48 private final TranslationService translationService;
49 private final LocaleProvider localeProvider;
50 private I18nKeyGenerator keyGenerator;
51
52 public I18nTextMethodDecorator(TranslationService translationService, LocaleProvider localeProvider, I18nKeyGenerator keyGenerator) {
53 this.translationService = translationService;
54 this.localeProvider = localeProvider;
55 this.keyGenerator = keyGenerator;
56 }
57
58 @Override
59 public Object decorateResult(T proxy, Method method, Object[] args, Object result) {
60 // We assume we can cast to String. We might implement support for different types at some point.
61 final String resultStr = (String) result;
62 return decorate(resultStr, proxy, method);
63 }
64
65 protected Object decorate(String undecoratedResult, T proxiedObject, Method method) {
66 final String[] keys = keyGenerator.keysFor(undecoratedResult, proxiedObject, method);
67 final String basename = keyGenerator.messageBundleNameFor(proxiedObject);
68
69 return translationService.translate(localeProvider, basename, keys);
70 }
71
72 }