1   /**
2    * Copyright (c) 2000-2007 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.portlet;
24  
25  import com.liferay.portal.util.WebKeys;
26  import com.liferay.util.CollectionFactory;
27  
28  import java.util.HashMap;
29  import java.util.Map;
30  
31  import javax.servlet.http.HttpServletRequest;
32  import javax.servlet.http.HttpSession;
33  
34  /**
35   * <a href="RenderParametersPool.java.html"><b><i>View Source</i></b></a>
36   *
37   * @author Brian Wing Shun Chan
38   *
39   */
40  public class RenderParametersPool {
41  
42      public static void clear(HttpServletRequest req, long plid) {
43          Map plidPool = get(req, plid);
44  
45          plidPool.clear();
46      }
47  
48      public static void clear(
49          HttpServletRequest req, long plid, String portletId) {
50  
51          Map params = get(req, plid, portletId);
52  
53          params.clear();
54      }
55  
56      public static Map get(HttpServletRequest req, long plid) {
57          HttpSession ses = req.getSession();
58  
59          if (plid <= 0) {
60              return CollectionFactory.getHashMap();
61          }
62  
63          String key = RenderParametersPool.class.getName() + plid;
64  
65          Map pool = (Map)_getRenderParametersPool(ses);
66  
67          Map plidPool = (Map)pool.get(key);
68  
69          if (plidPool == null) {
70              plidPool = CollectionFactory.getHashMap();
71  
72              pool.put(key, plidPool);
73          }
74  
75          return plidPool;
76      }
77  
78      public static Map get(HttpServletRequest req, long plid, String portletId) {
79          Map plidPool = get(req, plid);
80  
81          Map params = (Map)plidPool.get(portletId);
82  
83          if (params == null) {
84              params = new HashMap();
85  
86              plidPool.put(portletId, params);
87          }
88  
89          return params;
90      }
91  
92      public static void put(
93          HttpServletRequest req, long plid, String portletId, Map params) {
94  
95          Map plidPool = get(req, plid);
96  
97          plidPool.put(portletId, params);
98      }
99  
100     private static Map _getRenderParametersPool(HttpSession ses) {
101         Map renderParametersPool =
102             (Map)ses.getAttribute(WebKeys.PORTLET_RENDER_PARAMETERS);
103 
104         if (renderParametersPool == null) {
105             renderParametersPool = CollectionFactory.getHashMap();
106 
107             ses.setAttribute(
108                 WebKeys.PORTLET_RENDER_PARAMETERS, renderParametersPool);
109         }
110 
111         return renderParametersPool;
112     }
113 
114 }