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source: trunk/sources/HeuristicLab.PluginInfrastructure/3.3/Advanced/BasicUpdateView.cs @ 6967

Last change on this file since 6967 was 6413, checked in by gkronber, 13 years ago

#1536 implemented feature that checks for plugin updates on each application start and allows to install plugin updates easily. Removed more advanced plugin management features for all users except if it is manually reenabled in the HeuristicLab.config file.

File size: 5.1 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2011 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.ComponentModel;
25using System.Linq;
26using HeuristicLab.PluginInfrastructure.Manager;
27
28namespace HeuristicLab.PluginInfrastructure.Advanced {
29  internal partial class BasicUpdateView : InstallationManagerControl {
30    private BackgroundWorker updatePluginsBackgroundWorker;
31    private const string CheckingPluginsMessage = "Checking for updated plugins...";
32    private const string NoUpdatesAvailableMessage = "No updates available.";
33
34    private PluginManager pluginManager;
35    public PluginManager PluginManager {
36      get { return pluginManager; }
37      set { pluginManager = value; }
38    }
39
40    private InstallationManager installationManager;
41    public InstallationManager InstallationManager {
42      get { return installationManager; }
43      set { installationManager = value; }
44    }
45
46    public BasicUpdateView() {
47      InitializeComponent();
48      updatePluginsBackgroundWorker = new BackgroundWorker();
49      updatePluginsBackgroundWorker.DoWork += new DoWorkEventHandler(updatePluginsBackgroundWorker_DoWork);
50      updatePluginsBackgroundWorker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(updatePluginsBackgroundWorker_RunWorkerCompleted);
51    }
52
53    #region event handlers for update plugins backgroundworker
54    void updatePluginsBackgroundWorker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e) {
55      if (e.Error != null) {
56        StatusView.ShowError("Connection Error",
57          "There was an error while connecting to the server." + Environment.NewLine +
58           "Please check your connection settings and user credentials.");
59      } else if (e.Cancelled) {
60        StatusView.ShowMessage(NoUpdatesAvailableMessage);
61      }
62      StatusView.RemoveMessage(CheckingPluginsMessage);
63      StatusView.HideProgressIndicator();
64      StatusView.UnlockUI();
65    }
66
67    void updatePluginsBackgroundWorker_DoWork(object sender, DoWorkEventArgs e) {
68      IEnumerable<IPluginDescription> installedPlugins = (IEnumerable<IPluginDescription>)e.Argument;
69      var remotePlugins = installationManager.GetRemotePluginList();
70      // if there is a local plugin with same name and same major and minor version then it's an update
71      var pluginsToUpdate = from remotePlugin in remotePlugins
72                            let matchingLocalPlugins = from installedPlugin in installedPlugins
73                                                       where installedPlugin.Name == remotePlugin.Name
74                                                       where installedPlugin.Version.Major == remotePlugin.Version.Major
75                                                       where installedPlugin.Version.Minor == remotePlugin.Version.Minor
76                                                       where IsNewerThan(remotePlugin, installedPlugin)
77                                                       select installedPlugin
78                            where matchingLocalPlugins.Count() > 0
79                            select remotePlugin;
80      if (pluginsToUpdate.Count() > 0) {
81        bool cancelled;
82        installationManager.Update(pluginsToUpdate, out cancelled);
83        if (!cancelled)
84          pluginManager.DiscoverAndCheckPlugins();
85        e.Cancel = false;
86      } else {
87        e.Cancel = true;
88      }
89    }
90
91    // compares for two plugins with same major and minor version if plugin1 is newer than plugin2
92    private static bool IsNewerThan(IPluginDescription plugin1, IPluginDescription plugin2) {
93      // newer: build version is higher, or if build version is the same revision is higher
94      return plugin1.Version.Build > plugin2.Version.Build ||
95        (plugin1.Version.Build == plugin2.Version.Build && plugin1.Version.Revision > plugin2.Version.Revision);
96    }
97
98    #endregion
99    private void updateAndInstallButton_Click(object sender, EventArgs e) {
100      var installedPlugins = pluginManager.Plugins.OfType<IPluginDescription>().ToList();
101      updatePluginsBackgroundWorker.RunWorkerAsync(installedPlugins);
102      StatusView.LockUI();
103      StatusView.ShowProgressIndicator();
104      StatusView.RemoveMessage(NoUpdatesAvailableMessage);
105      StatusView.ShowMessage(CheckingPluginsMessage);
106    }
107  }
108}
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