AddedUserMemory


1   /*************************************************************************
2    *                                                                       *
3    *  EJBCA: The OpenSource Certificate Authority                          *
4    *                                                                       *
5    *  This software is free software; you can redistribute it and/or       *
6    *  modify it under the terms of the GNU Lesser General Public           *
7    *  License as published by the Free Software Foundation; either         *
8    *  version 2.1 of the License, or any later version.                    *
9    *                                                                       *
10   *  See terms of license at gnu.org.                                     *
11   *                                                                       *
12   *************************************************************************/
13   
14  /*
15   * AddedUserMemory.java
16   *
17   * Created on den 27 juli 2002, 22:01
18   */
19  package org.ejbca.ui.web.admin.rainterface;
20  
21  import java.io.Serializable  ;
22  import java.util.Vector  ;
23  
24  
25  /**
26   * A class used to remember a RA Admins last added users. It's use is in the adduser.jsp to list
27   * previously added users give the RA admins a better overlook of the his work.
28   *
29   * @author TomSelleck
30   * @version $Id: AddedUserMemory.java,v 1.1 2006/01/17 20:32:20 anatom Exp $
31   */
32  public class AddedUserMemory implements Serializable   {
33      // Public Constants
34      public static final int MEMORY_SIZE = 100; // Remember the 100 last users. 
35  
36      // Public Methods
37  
38      /**
39       * Creates a new instance of AddedUserMemory
40       */
41      public AddedUserMemory() {
42          memory = new Vector  ();
43      }
44  
45      /**
46       * Used to add a user tho the memory
47       *
48       * @param user the UserView representation of the user to add.
49       */
50      public void addUser(UserView user) {
51          memory.add(user);
52  
53          while (memory.size() > MEMORY_SIZE) {
54              memory.remove(0);
55          }
56      }
57  
58      /**
59       * Used to retrieve a number of previously added users.
60       *
61       * @param size the size of the array of users to return
62       *
63       * @return the 'size' or available users in memory.
64       */
65      public UserView[] getUsers(int size) {
66          int endindex = memory.size() - size;
67          int tempsize = size;
68          UserView[] returnval;
69  
70          if (endindex < 0) {
71              endindex = 0;
72          }
73  
74          if (size > memory.size()) {
75              tempsize = memory.size();
76          }
77  
78          returnval = new UserView[tempsize];
79  
80          int j = 0;
81  
82          for (int i = memory.size() - 1; i >= endindex; i--) {
83              returnval[j] = (UserView) memory.elementAt(i);
84              j++;
85          }
86  
87          return returnval;
88      }
89  
90      /**
91       * Used to update the data of a user.
92       *
93       * @param user the stringarray representation of the user to change.
94       */
95      public void changeUser(UserView user) {
96          int i;
97  
98          // Find user in memory.
99          for (i = 0; i < memory.size(); i++) {
100             if (((UserView) memory.elementAt(i)).getUsername().equals(user.getUsername())) {
101                 memory.set(i, user);
102 
103                 break;
104             }
105         }
106     }
107 
108     // Private fields
109     private Vector   memory = null;
110 }
111
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