1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.events;
24  
25  import com.liferay.portal.kernel.events.Action;
26  import com.liferay.portal.kernel.events.ActionException;
27  import com.liferay.portal.kernel.log.Log;
28  import com.liferay.portal.kernel.log.LogFactoryUtil;
29  import com.liferay.portal.kernel.util.GetterUtil;
30  import com.liferay.portal.kernel.util.Randomizer;
31  import com.liferay.portal.model.Group;
32  import com.liferay.portal.model.GroupConstants;
33  import com.liferay.portal.model.Layout;
34  import com.liferay.portal.model.LayoutTypePortlet;
35  import com.liferay.portal.service.GroupLocalServiceUtil;
36  import com.liferay.portal.service.LayoutLocalServiceUtil;
37  import com.liferay.portal.theme.ThemeDisplay;
38  import com.liferay.portal.util.WebKeys;
39  
40  import java.util.List;
41  
42  import javax.servlet.http.HttpServletRequest;
43  import javax.servlet.http.HttpServletResponse;
44  
45  /**
46   * <a href="RandomLayoutAction.java.html"><b><i>View Source</i></b></a>
47   *
48   * @author Brian Wing Shun Chan
49   *
50   */
51  public class RandomLayoutAction extends Action {
52  
53      public void run(HttpServletRequest request, HttpServletResponse response)
54          throws ActionException {
55  
56          try {
57  
58              // Do not randomize layout unless the user is logged in
59  
60              ThemeDisplay themeDisplay = (ThemeDisplay)request.getAttribute(
61                  WebKeys.THEME_DISPLAY);
62  
63              if (!themeDisplay.isSignedIn()) {
64                  return;
65              }
66  
67              // Do not randomize layout unless the user is accessing the portal
68  
69              String requestURI = GetterUtil.getString(request.getRequestURI());
70  
71              if (!requestURI.endsWith("/portal/layout")) {
72                  return;
73              }
74  
75              // Do not randomize layout unless the user is accessing a personal
76              // layout
77  
78              Layout layout = themeDisplay.getLayout();
79  
80              if (layout == null) {
81                  return;
82              }
83  
84              Group generalGuestGroup = GroupLocalServiceUtil.getGroup(
85                  themeDisplay.getCompanyId(), GroupConstants.GUEST);
86  
87              List<Layout> layouts = LayoutLocalServiceUtil.getLayouts(
88                  generalGuestGroup.getGroupId(), false);
89  
90              if (layouts.size() > 0) {
91                  Layout randomLayout = layouts.get(
92                      Randomizer.getInstance().nextInt(layouts.size()));
93  
94                  themeDisplay.setLayout(randomLayout);
95                  themeDisplay.setLayoutTypePortlet(
96                      (LayoutTypePortlet)randomLayout.getLayoutType());
97  
98                  request.setAttribute(WebKeys.LAYOUT, randomLayout);
99              }
100         }
101         catch (Exception e) {
102             _log.error(e, e);
103 
104             throw new ActionException(e);
105         }
106     }
107 
108     private static Log _log =
109          LogFactoryUtil.getLog(RandomLookAndFeelAction.class);
110 
111 }