01: /**
02: * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
03: *
04: * Permission is hereby granted, free of charge, to any person obtaining a copy
05: * of this software and associated documentation files (the "Software"), to deal
06: * in the Software without restriction, including without limitation the rights
07: * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
08: * copies of the Software, and to permit persons to whom the Software is
09: * 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: */package com.liferay.portal.servlet;
22:
23: import com.liferay.portal.util.PropsUtil;
24: import com.liferay.util.CollectionFactory;
25:
26: import java.util.Enumeration;
27: import java.util.Map;
28:
29: import javax.servlet.http.HttpServletRequest;
30: import javax.servlet.http.HttpSession;
31:
32: import org.apache.commons.logging.Log;
33: import org.apache.commons.logging.LogFactory;
34:
35: /**
36: * <a href="SharedSessionUtil.java.html"><b><i>View Source</i></b></a>
37: *
38: * @author Brian Wing Shun Chan
39: * @author Brian Myunghun Kim
40: *
41: */
42: public class SharedSessionUtil {
43:
44: public static final String[] SHARED_SESSION_ATTRIBUTES = PropsUtil
45: .getArray(PropsUtil.SESSION_SHARED_ATTRIBUTES);
46:
47: public static Map getSharedSessionAttributes(HttpServletRequest req) {
48: Map map = CollectionFactory.getSyncHashMap();
49:
50: HttpSession ses = req.getSession();
51:
52: Enumeration enu = ses.getAttributeNames();
53:
54: while (enu.hasMoreElements()) {
55: String attrName = (String) enu.nextElement();
56: Object attrValue = ses.getAttribute(attrName);
57:
58: if (attrValue != null) {
59: for (int i = 0; i < SHARED_SESSION_ATTRIBUTES.length; i++) {
60: if (attrName
61: .startsWith(SHARED_SESSION_ATTRIBUTES[i])) {
62: map.put(attrName, attrValue);
63:
64: if (_log.isDebugEnabled()) {
65: _log.debug("Sharing " + attrName);
66: }
67:
68: break;
69: }
70: }
71: }
72: }
73:
74: return map;
75: }
76:
77: private static Log _log = LogFactory
78: .getLog(SharedSessionUtil.class);
79:
80: }
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