1 /**
2 * This file Copyright (c) 2013-2018 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;
35
36 import info.magnolia.i18nsystem.util.AnnotationUtils;
37
38 /**
39 * Provides {@link I18nKeyGenerator} for object annotated with {@link I18nable}.
40 */
41 public class I18nKeyGeneratorFactory {
42 public static <T> I18nKeyGenerator<T> newKeyGeneratorFor(T obj) {
43 if (obj == null) {
44 return null;
45 }
46 return newKeyGeneratorFor((Class<T>) obj.getClass());
47 }
48
49 public static <T> I18nKeyGenerator<T> newKeyGeneratorFor(Class<T> type) {
50 final I18nable i18nable = AnnotationUtils.getAnnotationOn(type, I18nable.class);
51 return newKeyGenerator(i18nable);
52 }
53
54 protected static I18nKeyGenerator newKeyGenerator(I18nable i18nable) {
55 final Class<? extends I18nKeyGenerator> keyGenClass = i18nable.keyGenerator();
56 try {
57 return keyGenClass.newInstance();
58 } catch (InstantiationException | IllegalAccessException e) {
59 throw new RuntimeException("Could not instantiate " + keyGenClass, e);
60 }
61 }
62 }