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