1 /*
2 * $Id: SelectLocale.java 471754 2006-11-06 14:55:09Z husted $
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.struts.chain.commands.servlet;
22
23 import org.apache.commons.logging.Log;
24 import org.apache.commons.logging.LogFactory;
25 import org.apache.struts.Globals;
26 import org.apache.struts.chain.commands.AbstractSelectLocale;
27 import org.apache.struts.chain.contexts.ActionContext;
28 import org.apache.struts.chain.contexts.ServletActionContext;
29
30 import javax.servlet.http.HttpSession;
31
32 import java.util.Locale;
33
34 /**
35 * <p>Select the <code>Locale</code> to be used for this request.</p>
36 *
37 * @version $Rev: 471754 $ $Date: 2005-05-07 12:11:38 -0400 (Sat, 07 May 2005)
38 * $
39 */
40 public class SelectLocale extends AbstractSelectLocale {
41 private static final Log log = LogFactory.getLog(SelectLocale.class);
42
43 // ------------------------------------------------------- Protected Methods
44
45 /**
46 * <p>Return the <code>Locale</code> to be used for this request.</p>
47 *
48 * @param context The <code>Context</code> for this request
49 */
50 protected Locale getLocale(ActionContext context) {
51 ServletActionContext saContext = (ServletActionContext) context;
52
53 // Has a Locale already been selected?
54 HttpSession session = saContext.getRequest().getSession();
55 Locale locale = (Locale) session.getAttribute(Globals.LOCALE_KEY);
56
57 if (locale != null) {
58 return (locale);
59 }
60
61 // Select and cache the Locale to be used
62 locale = saContext.getRequest().getLocale();
63
64 if (locale == null) {
65 locale = Locale.getDefault();
66 }
67
68 session.setAttribute(Globals.LOCALE_KEY, locale);
69
70 return (locale);
71 }
72 }