1 /*
2 * $Id: DefaultLocaleResolver.java 887725 2009-12-06 18:02:10Z apetrelli $
3 *
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21 package org.apache.tiles.locale.impl;
22
23 import java.util.Locale;
24 import java.util.Map;
25
26 import org.apache.tiles.locale.LocaleResolver;
27 import org.apache.tiles.request.Request;
28
29 /**
30 * Default implementation of <code>LocaleResolver</code><br>
31 * It tries to take the locale from the session-scoped attribute
32 * {@link DefaultLocaleResolver#LOCALE_KEY}. If it is not found, it returns the
33 * locale included in the request.
34 *
35 * @version $Rev: 887725 $ $Date: 2009-12-07 05:02:10 +1100 (Mon, 07 Dec 2009) $
36 */
37 public class DefaultLocaleResolver implements LocaleResolver {
38
39 /**
40 * The attribute name that is used to store the current locale.
41 */
42 public static final String LOCALE_KEY = "org.apache.tiles.LOCALE";
43
44 /** {@inheritDoc} */
45 public Locale resolveLocale(Request request) {
46 Locale retValue = null;
47 Map<String, Object> session = request.getContext("session");
48 if (session != null) {
49 retValue = (Locale) session.get(DefaultLocaleResolver.LOCALE_KEY);
50 }
51 if (retValue == null) {
52 retValue = request.getRequestLocale();
53 }
54
55 return retValue;
56 }
57 }