source: branches/ClientUserManagement/HeuristicLab.Clients.Access/3.3/UserInformation.cs @ 7436

Last change on this file since 7436 was 7436, checked in by ascheibe, 8 years ago

#1648 started working on a class which should store all user information on the client side

File size: 3.6 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2012 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.Collections.Generic;
24using System.ServiceModel.Security;
25using HeuristicLab.Clients.Common.Properties;
26
27namespace HeuristicLab.Clients.Access {
28  public sealed class UserInformation {
29    private static UserInformation instance;
30    public static UserInformation Instance {
31      get {
32        if (instance == null) instance = new UserInformation();
33        return instance;
34      }
35    }
36
37    private string userName;
38    public string UserName {
39      get { return userName; }
40    }
41
42    private bool userExists = false;
43    public bool UserExists {
44      get { return userExists; }
45    }
46
47    private LightweightUser user;
48    public LightweightUser User {
49      get { return user; }
50    }
51
52    //the groups a user is in
53    private List<UserGroup> groups;
54    public List<UserGroup> Groups {
55      get { return groups; }
56    }
57
58    //the roles a user has
59    private List<Role> roles;
60    public List<Role> Roles {
61      get { return roles; }
62    }
63
64    private bool errorOccured;
65    public bool ErrorOccured {
66      get { return errorOccured; }
67    }
68
69    private Exception occuredException;
70    public Exception OccuredException {
71      get { return occuredException; }
72    }
73
74    private bool isInitialized = false;
75
76    public static void Initialize() {
77      if (!Instance.isInitialized) {
78        FetchUserInformationFromServerAsync();
79      }
80    }
81
82    private UserInformation() {
83      if (!Instance.isInitialized) {
84        //this blocks, so there should be anywhere in the Optimizer startup process
85        //a call to FetchUserInformationFromServerAsync which is non-blocking
86        FetchUserInformationFromServer();
87      }
88    }
89
90
91    private void FetchUserInformationFromServer() {
92      userName = Settings.Default.UserName;
93
94      try {
95        AccessClient.CallRunCreationService(x => user = x.Login());
96        AccessClient.CallRunCreationService(x => groups = x.GetGroupsOfCurrentUser());
97        AccessClient.CallRunCreationService(x => roles = x.GetRolesOfCurrentUser());
98      }
99      catch (MessageSecurityException e) {
100        //wrong username or password
101        errorOccured = false;
102        userExists = false;
103        isInitialized = true;
104        occuredException = e;
105        return;
106      }
107      catch (Exception e) {
108        errorOccured = true;
109        userExists = false;
110        isInitialized = false;
111        occuredException = e;
112        return;
113      }
114
115      errorOccured = false;
116      userExists = true;
117      isInitialized = true;
118      occuredException = null;
119    }
120
121    private static void FetchUserInformationFromServerAsync() {
122      throw new NotImplementedException();
123    }
124
125    public void Refresh() {
126      FetchUserInformationFromServer();
127    }
128  }
129}
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