1   /**
2    * Copyright (c) 2000-2008 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.util.GetterUtil;
28  import com.liferay.portal.kernel.util.Randomizer;
29  import com.liferay.portal.model.Group;
30  import com.liferay.portal.model.Layout;
31  import com.liferay.portal.model.LayoutTypePortlet;
32  import com.liferay.portal.model.impl.GroupImpl;
33  import com.liferay.portal.service.GroupLocalServiceUtil;
34  import com.liferay.portal.service.LayoutLocalServiceUtil;
35  import com.liferay.portal.theme.ThemeDisplay;
36  import com.liferay.portal.util.PropsKeys;
37  import com.liferay.portal.util.PropsUtil;
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  import org.apache.commons.logging.Log;
46  import org.apache.commons.logging.LogFactory;
47  
48  /**
49   * <a href="RandomLayoutAction.java.html"><b><i>View Source</i></b></a>
50   *
51   * @author Brian Wing Shun Chan
52   *
53   */
54  public class RandomLayoutAction extends Action {
55  
56      public void run(HttpServletRequest request, HttpServletResponse response)
57          throws ActionException {
58  
59          try {
60  
61              // Disable caching for CSS and JavaScript
62  
63              PropsUtil.set(PropsKeys.LAST_MODIFIED_CHECK, "false");
64  
65              // Do not randomize layout unless the user is logged in
66  
67              ThemeDisplay themeDisplay = (ThemeDisplay)request.getAttribute(
68                  WebKeys.THEME_DISPLAY);
69  
70              if (!themeDisplay.isSignedIn()) {
71                  return;
72              }
73  
74              // Do not randomize layout unless the user is accessing the portal
75  
76              String requestURI = GetterUtil.getString(request.getRequestURI());
77  
78              if (!requestURI.endsWith("/portal/layout")) {
79                  return;
80              }
81  
82              // Do not randomize layout unless the user is accessing a personal
83              // layout
84  
85              Layout layout = themeDisplay.getLayout();
86  
87              if (layout == null) {
88                  return;
89              }
90  
91              Group generalGuestGroup = GroupLocalServiceUtil.getGroup(
92                  themeDisplay.getCompanyId(), GroupImpl.GUEST);
93  
94              List<Layout> layouts = LayoutLocalServiceUtil.getLayouts(
95                  generalGuestGroup.getGroupId(), false);
96  
97              if (layouts.size() > 0) {
98                  Layout randomLayout = layouts.get(
99                      Randomizer.getInstance().nextInt(layouts.size()));
100 
101                 themeDisplay.setLayout(randomLayout);
102                 themeDisplay.setLayoutTypePortlet(
103                     (LayoutTypePortlet)randomLayout.getLayoutType());
104 
105                 request.setAttribute(WebKeys.LAYOUT, randomLayout);
106             }
107         }
108         catch (Exception e) {
109             _log.error(e, e);
110 
111             throw new ActionException(e);
112         }
113     }
114 
115     private static Log _log = LogFactory.getLog(RandomLookAndFeelAction.class);
116 
117 }