/// <summary>
/// Creates a <see cref="WuApiController"/> which uses the given Interfaces to search, download and install updates.
/// </summary>
/// <param name="session">Session to be used.</param>
/// <param name="updateCollectionFactory">Factory to create <see cref="IUpdateCollection"/>s.</param>
/// <param name="systemInfo">System informations about the OS enviroment.</param>
public WuApiController(IUpdateSession session, UpdateCollectionFactory updateCollectionFactory, ISystemInfo systemInfo)
{
if (session == null)
{
throw new ArgumentNullException(nameof(session));
}
if (updateCollectionFactory == null)
{
throw new ArgumentNullException(nameof(updateCollectionFactory));
}
if (systemInfo == null)
{
throw new ArgumentNullException(nameof(systemInfo));
}
UpdateSession = session;
UpdateSession.ClientApplicationID = this.GetType().FullName;
UpdateSearcher = session.CreateUpdateSearcher();
UpdateDownloader = session.CreateUpdateDownloader();
UpdateInstaller = session.CreateUpdateInstaller();
UpdateCollectionFactory = updateCollectionFactory;
SystemInfo = systemInfo;
StateTransitions = SetupStateTransitions();
EnterState((SystemInfo.IsRebootRequired()) ? (WuProcessState) new WuStateRebootRequired() : new WuStateReady());
Log.Info("Initial state: " + _currentState.GetType().Name);
if (Log.IsDebugEnabled)
{
OnStateChanged += (s, e) => { Log.Debug($"Event {nameof(OnStateChanged)} fired: {e.ToString()}"); };
OnAsyncOperationCompleted += (s, e) => { Log.Debug($"Event {nameof(OnAsyncOperationCompleted)} fired: {e.ToString()}"); };
OnProgressChanged += (s, e) => { Log.Debug($"Event {nameof(OnProgressChanged)} fired: {e.ToString()}"); };
}
}
public void Should_NotAllowEqualTransitions_When_AddToTransitionList()
{
StateTransitionCollection coll = new StateTransitionCollection();
coll.Add <WuStateReady, WuStateDownloading>();
coll.Add <WuStateReady, WuStateDownloading>((c) => { return(new ConditionEvalResult(true, null)); });
}
public void Should_ReturnFalse_When_CallIsReadOnly()
{
StateTransitionCollection coll = new StateTransitionCollection();
Assert.IsFalse(coll.IsReadOnly);
}
/// <summary>
/// Setups a list of all valid state transistions.
/// </summary>
private StateTransitionCollection SetupStateTransitions()
{
StateTransition.TransitionCondition downloadingPreCon = (c) =>
{
using (ll.Lock(UpdateHolderLock))
{
var applUpdates = UpdateHolder.GetSelectedUpdates((u) => u.EulaAccepted);
if (applUpdates.Any())
{
if (applUpdates.All(u => u.IsDownloaded || u.IsInstalled))
{
return(new ConditionEvalResult(true, "All selected updates are already downloaded.")); // or installed
}
if (SystemInfo.GetFreeSpace() < (decimal)1.5 * applUpdates.Where(u => !u.IsDownloaded && !u.IsInstalled).Sum(u => (u.RecommendedHardDiskSpace > 0) ? u.RecommendedHardDiskSpace : u.MaxDownloadSize))
{
return(new ConditionEvalResult(false, "Not enough free space on system drive."));
}
return(ConditionEvalResult.ValidStateChange);
}
return(new ConditionEvalResult(false, "Please search for updates first, select some updates and accept the eulas."));
}
};
StateTransition.TransitionCondition installingPreCon = (c) =>
{
using (ll.Lock(UpdateHolderLock))
{
if (UpdateInstaller.IsBusy)
{
return(new ConditionEvalResult(false, "The update installer is currently busy, an other update session installs or uninstalls updates."));
}
if (UpdateInstaller.RebootRequiredBeforeInstallation)
{
return(new ConditionEvalResult(false, "A reboot is required before updates can be installed."));
}
var applUpdates = UpdateHolder.GetSelectedUpdates((u) => u.EulaAccepted);
if (applUpdates.Any())
{
if (applUpdates.All(u => u.IsInstalled))
{
return(new ConditionEvalResult(true, "All selected updates are already downloaded.")); // or installed
}
return(ConditionEvalResult.ValidStateChange);
}
return(new ConditionEvalResult(false, "Please search for updates first, select some updates and accept the eulas."));
}
};
var stateTransitions = new StateTransitionCollection();
// fromState -goes-> toState
stateTransitions.Add <WuStateReady, WuStateSearching>();
stateTransitions.Add <WuStateReady, WuStateRestartSentToOS>();
stateTransitions.Add <WuStateSearching, WuStateSearchCompleted>();
stateTransitions.Add <WuStateSearching, WuStateSearchFailed>();
stateTransitions.Add <WuStateSearchCompleted, WuStateSearching>();
stateTransitions.Add <WuStateSearchCompleted, WuStateDownloading>(downloadingPreCon);
stateTransitions.Add <WuStateSearchCompleted, WuStateInstalling>(installingPreCon);
stateTransitions.Add <WuStateSearchFailed, WuStateSearching>();
stateTransitions.Add <WuStateSearchFailed, WuStateDownloading>(downloadingPreCon);
stateTransitions.Add <WuStateSearchFailed, WuStateInstalling>(installingPreCon);
stateTransitions.Add <WuStateDownloading, WuStateDownloadFailed>();
stateTransitions.Add <WuStateDownloading, WuStateDownloadCompleted>();
stateTransitions.Add <WuStateDownloading, WuStateDownloadPartiallyFailed>();
stateTransitions.Add <WuStateDownloadFailed, WuStateSearching>();
stateTransitions.Add <WuStateDownloadFailed, WuStateDownloading>(downloadingPreCon);
stateTransitions.Add <WuStateDownloadFailed, WuStateInstalling>(installingPreCon);
stateTransitions.Add <WuStateDownloadCompleted, WuStateSearching>();
stateTransitions.Add <WuStateDownloadCompleted, WuStateDownloading>(downloadingPreCon);
stateTransitions.Add <WuStateDownloadCompleted, WuStateInstalling>(installingPreCon);
stateTransitions.Add <WuStateDownloadPartiallyFailed, WuStateSearching>();
stateTransitions.Add <WuStateDownloadPartiallyFailed, WuStateDownloading>(downloadingPreCon);
stateTransitions.Add <WuStateDownloadPartiallyFailed, WuStateInstalling>(installingPreCon);
stateTransitions.Add <WuStateInstalling, WuStateInstallCompleted>();
stateTransitions.Add <WuStateInstalling, WuStateInstallFailed>();
stateTransitions.Add <WuStateInstalling, WuStateInstallPartiallyFailed>();
stateTransitions.Add <WuStateInstalling, WuStateRebootRequired>();
stateTransitions.Add <WuStateInstalling, WuStateUserInputRequired>();
stateTransitions.Add <WuStateInstallCompleted, WuStateSearching>();
stateTransitions.Add <WuStateInstallCompleted, WuStateDownloading>(downloadingPreCon);
stateTransitions.Add <WuStateInstallCompleted, WuStateInstalling>(installingPreCon);
stateTransitions.Add <WuStateInstallFailed, WuStateSearching>();
stateTransitions.Add <WuStateInstallFailed, WuStateDownloading>(downloadingPreCon);
stateTransitions.Add <WuStateInstallFailed, WuStateInstalling>(installingPreCon);
stateTransitions.Add <WuStateInstallPartiallyFailed, WuStateSearching>();
stateTransitions.Add <WuStateInstallPartiallyFailed, WuStateDownloading>(downloadingPreCon);
stateTransitions.Add <WuStateInstallPartiallyFailed, WuStateInstalling>(installingPreCon);
stateTransitions.Add <WuStateInstallPartiallyFailed, WuStateRestartSentToOS>();
stateTransitions.Add <WuStateUserInputRequired, WuStateSearching>();
stateTransitions.Add <WuStateUserInputRequired, WuStateDownloading>(downloadingPreCon);
stateTransitions.Add <WuStateUserInputRequired, WuStateInstalling>(installingPreCon);
stateTransitions.Add <WuStateRebootRequired, WuStateRestartSentToOS>();
return(stateTransitions);
}
