| PortalSessionContext.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 *
5 *
6 *
7 * The contents of this file are subject to the terms of the Liferay Enterprise
8 * Subscription License ("License"). You may not use this file except in
9 * compliance with the License. You can obtain a copy of the License by
10 * contacting Liferay, Inc. See the License for the specific language governing
11 * permissions and limitations under the License, including but not limited to
12 * distribution rights 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.servlet;
24
25 import com.liferay.portal.kernel.util.Validator;
26
27 import java.util.Collection;
28 import java.util.Map;
29 import java.util.concurrent.ConcurrentHashMap;
30
31 import javax.servlet.http.HttpSession;
32
33 /**
34 * <a href="PortalSessionContext.java.html"><b><i>View Source</i></b></a>
35 *
36 * @author Brian Wing Shun Chan
37 */
38 public class PortalSessionContext {
39
40 public static int count() {
41 return _instance._count();
42 }
43
44 public static HttpSession get(String sessionId) {
45 return _instance._get(sessionId);
46 }
47
48 public static void put(String sessionId, HttpSession session) {
49 _instance._put(sessionId, session);
50 }
51
52 public static HttpSession remove(String sessionId) {
53 return _instance._remove(sessionId);
54 }
55
56 public static Collection<HttpSession> values() {
57 return _instance._values();
58 }
59
60 private PortalSessionContext() {
61 _sessionPool = new ConcurrentHashMap<String, HttpSession>();
62 }
63
64 private int _count() {
65 return _sessionPool.size();
66 }
67
68 private HttpSession _get(String sessionId) {
69 if (Validator.isNull(sessionId)) {
70 return null;
71 }
72
73 return _sessionPool.get(sessionId);
74 }
75
76 private void _put(String sessionId, HttpSession session) {
77 _sessionPool.put(sessionId, session);
78 }
79
80 private HttpSession _remove(String sessionId) {
81 return _sessionPool.remove(sessionId);
82 }
83
84 public Collection<HttpSession> _values() {
85 return _sessionPool.values();
86 }
87
88 private static PortalSessionContext _instance = new PortalSessionContext();
89
90 private Map<String, HttpSession> _sessionPool;
91
92 }