| RandomLayoutAction.java |
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.PropsUtil;
37 import com.liferay.portal.util.WebKeys;
38
39 import java.util.List;
40
41 import javax.servlet.http.HttpServletRequest;
42 import javax.servlet.http.HttpServletResponse;
43
44 import org.apache.commons.logging.Log;
45 import org.apache.commons.logging.LogFactory;
46
47 /**
48 * <a href="RandomLayoutAction.java.html"><b><i>View Source</i></b></a>
49 *
50 * @author Brian Wing Shun Chan
51 *
52 */
53 public class RandomLayoutAction extends Action {
54
55 public void run(HttpServletRequest req, HttpServletResponse res)
56 throws ActionException {
57
58 try {
59
60 // Disable caching for CSS and JavaScript
61
62 PropsUtil.set(PropsUtil.LAST_MODIFIED_CHECK, "false");
63
64 // Do not randomize layout unless the user is logged in
65
66 ThemeDisplay themeDisplay =
67 (ThemeDisplay)req.getAttribute(WebKeys.THEME_DISPLAY);
68
69 if (!themeDisplay.isSignedIn()) {
70 return;
71 }
72
73 // Do not randomize layout unless the user is accessing the portal
74
75 String requestURI = GetterUtil.getString(req.getRequestURI());
76
77 if (!requestURI.endsWith("/portal/layout")) {
78 return;
79 }
80
81 // Do not randomize layout unless the user is accessing a personal
82 // layout
83
84 Layout layout = themeDisplay.getLayout();
85
86 if (layout == null) {
87 return;
88 }
89
90 Group generalGuestGroup = GroupLocalServiceUtil.getGroup(
91 themeDisplay.getCompanyId(), GroupImpl.GUEST);
92
93 List<Layout> layouts = LayoutLocalServiceUtil.getLayouts(
94 generalGuestGroup.getGroupId(), false);
95
96 if (layouts.size() > 0) {
97 Layout randomLayout = layouts.get(
98 Randomizer.getInstance().nextInt(layouts.size()));
99
100 themeDisplay.setLayout(randomLayout);
101 themeDisplay.setLayoutTypePortlet(
102 (LayoutTypePortlet)randomLayout.getLayoutType());
103
104 req.setAttribute(WebKeys.LAYOUT, randomLayout);
105 }
106 }
107 catch (Exception e) {
108 _log.error(e, e);
109
110 throw new ActionException(e);
111 }
112 }
113
114 private static Log _log = LogFactory.getLog(RandomLookAndFeelAction.class);
115
116 }