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.portlet.tagscompiler.util;
24  
25  import com.liferay.portal.util.WebKeys;
26  
27  import java.util.Collection;
28  import java.util.List;
29  import java.util.Set;
30  import java.util.TreeSet;
31  
32  import javax.portlet.PortletRequest;
33  import javax.portlet.PortletSession;
34  
35  /**
36   * <a href="TagsCompilerSessionUtil.java.html"><b><i>View Source</i></b></a>
37   *
38   * @author Brian Wing Shun Chan
39   *
40   */
41  public class TagsCompilerSessionUtil {
42  
43      public static void addEntries(PortletRequest req, List<String> entries) {
44          Set<String> entriesSet = _getEntriesSet(req);
45  
46          entriesSet.addAll(entries);
47      }
48  
49      public static void addEntry(PortletRequest req, String entry) {
50          Set<String> entriesSet = _getEntriesSet(req);
51  
52          entriesSet.add(entry);
53      }
54  
55      public static void clearEntries(PortletRequest req) {
56          Set<String> entriesSet = _getEntriesSet(req);
57  
58          entriesSet.clear();
59      }
60  
61      public static Collection<String> getEntries(PortletRequest req) {
62          Set<String> entriesSet = _getEntriesSet(req);
63  
64          return entriesSet;
65      }
66  
67      public static void removeEntries(PortletRequest req, List<String> entries) {
68          Set<String> entriesSet = _getEntriesSet(req);
69  
70          entriesSet.removeAll(entries);
71      }
72  
73      public static void setEntries(PortletRequest req, List<String> entries) {
74          Set<String> entriesSet = _getEntriesSet(req);
75  
76          entriesSet.clear();
77  
78          entriesSet.addAll(entries);
79      }
80  
81      private static Set<String> _getEntriesSet(PortletRequest req) {
82          PortletSession ses = req.getPortletSession();
83  
84          Set<String> entriesSet = (Set<String>)ses.getAttribute(
85              WebKeys.TAGS_COMPILER_ENTRIES, PortletSession.APPLICATION_SCOPE);
86  
87          if (entriesSet == null) {
88              entriesSet = new TreeSet<String>();
89  
90              ses.setAttribute(
91                  WebKeys.TAGS_COMPILER_ENTRIES, entriesSet,
92                  PortletSession.APPLICATION_SCOPE);
93          }
94  
95          return entriesSet;
96      }
97  
98  }