#region License Information
/* HeuristicLab
* Copyright (C) 2002-2011 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
*
* This file is part of HeuristicLab.
*
* HeuristicLab is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* HeuristicLab is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with HeuristicLab. If not, see .
*/
#endregion
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using HeuristicLab.PluginInfrastructure.Manager;
namespace HeuristicLab.PluginInfrastructure.Advanced {
internal partial class BasicUpdateView : InstallationManagerControl {
private BackgroundWorker updatePluginsBackgroundWorker;
private const string CheckingPluginsMessage = "Checking for updated plugins...";
private const string NoUpdatesAvailableMessage = "No updates available.";
private PluginManager pluginManager;
public PluginManager PluginManager {
get { return pluginManager; }
set { pluginManager = value; }
}
private InstallationManager installationManager;
public InstallationManager InstallationManager {
get { return installationManager; }
set { installationManager = value; }
}
public BasicUpdateView() {
InitializeComponent();
updatePluginsBackgroundWorker = new BackgroundWorker();
updatePluginsBackgroundWorker.DoWork += new DoWorkEventHandler(updatePluginsBackgroundWorker_DoWork);
updatePluginsBackgroundWorker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(updatePluginsBackgroundWorker_RunWorkerCompleted);
}
#region event handlers for update plugins backgroundworker
void updatePluginsBackgroundWorker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e) {
if (e.Error != null) {
StatusView.ShowError("Connection Error",
"There was an error while connecting to the server." + Environment.NewLine +
"Please check your connection settings and user credentials.");
} else if (e.Cancelled) {
StatusView.ShowMessage(NoUpdatesAvailableMessage);
}
StatusView.RemoveMessage(CheckingPluginsMessage);
StatusView.HideProgressIndicator();
StatusView.UnlockUI();
}
void updatePluginsBackgroundWorker_DoWork(object sender, DoWorkEventArgs e) {
IEnumerable installedPlugins = (IEnumerable)e.Argument;
var remotePlugins = installationManager.GetRemotePluginList();
// if there is a local plugin with same name and same major and minor version then it's an update
var pluginsToUpdate = from remotePlugin in remotePlugins
let matchingLocalPlugins = from installedPlugin in installedPlugins
where installedPlugin.Name == remotePlugin.Name
where installedPlugin.Version.Major == remotePlugin.Version.Major
where installedPlugin.Version.Minor == remotePlugin.Version.Minor
where IsNewerThan(remotePlugin, installedPlugin)
select installedPlugin
where matchingLocalPlugins.Count() > 0
select remotePlugin;
if (pluginsToUpdate.Count() > 0) {
bool cancelled;
installationManager.Update(pluginsToUpdate, out cancelled);
if (!cancelled)
pluginManager.DiscoverAndCheckPlugins();
e.Cancel = false;
} else {
e.Cancel = true;
}
}
// compares for two plugins with same major and minor version if plugin1 is newer than plugin2
private static bool IsNewerThan(IPluginDescription plugin1, IPluginDescription plugin2) {
// newer: build version is higher, or if build version is the same revision is higher
return plugin1.Version.Build > plugin2.Version.Build ||
(plugin1.Version.Build == plugin2.Version.Build && plugin1.Version.Revision > plugin2.Version.Revision);
}
#endregion
private void updateAndInstallButton_Click(object sender, EventArgs e) {
var installedPlugins = pluginManager.Plugins.OfType().ToList();
updatePluginsBackgroundWorker.RunWorkerAsync(installedPlugins);
StatusView.LockUI();
StatusView.ShowProgressIndicator();
StatusView.RemoveMessage(NoUpdatesAvailableMessage);
StatusView.ShowMessage(CheckingPluginsMessage);
}
}
}