public ApplicationInstaller(IInternalWatchdog watchdog, ApplicationDescriptor descriptor, Installation installation = Installation.FailOnUpgrade)
{
if (watchdog == null)
{
throw new ArgumentNullException(nameof(watchdog));
}
if (descriptor == null)
{
throw new ArgumentNullException(nameof(descriptor));
}
if (descriptor.Name == null)
{
throw new ArgumentNullException("descriptor.Name");
}
_blockBuffer = new byte[BlockSize];
_descriptor = descriptor;
_installation = installation;
_watchdog = watchdog;
_pendingFiles = new ConcurrentBag <File>();
_cancellationTokenSource = new CancellationTokenSource();
_commitTokenSource = new CancellationTokenSource();
_task = Task.Factory.StartNew(InstallApplication);
_watchdog.StartInstallation(descriptor, installation);
}
public void StartInstallation(ApplicationDescriptor description, Installation installation)
{
lock (_syncRoot)
{
Log.DebugFormat("Starting installation of '{0}': {1}", description.Name, installation);
// If there's another pending installation with the same folder then we'll bail early...
InstalledApplication pending =
_pendingInstallations.Values.FirstOrDefault(x => x.Descriptor.Name == description.Name);
if (pending != null)
{
throw new InstallationFailedException(
string.Format(
"There already is a pending installation for the same application - this installation must be completed or aborted in order for a new installation to be allowed"));
}
// Let's find out if we're replacing an existing installation...
InstalledApplication existingApp;
_installedApplications.TryGetValue(description.Name, out existingApp);
InstalledApplication newApp;
if (existingApp != null)
{
switch (installation)
{
case Installation.FailOnUpgrade:
throw new InstallationFailedException(
string.Format("There already is an installation of the same application present"));
case Installation.CleanInstall:
StopAllApplicationInstances(existingApp.Name);
RemoveApplication(existingApp.Name);
newApp = new InstalledApplication(description);
break;
case Installation.ColdUpdate:
StopAllApplicationInstances(existingApp.Name);
newApp = new InstalledApplication(description);
newApp.Files.AddRange(existingApp.Files);
break;
case Installation.HotUpdate:
newApp = new InstalledApplication(description);
newApp.Files.AddRange(existingApp.Files);
break;
default:
throw new InvalidEnumArgumentException(nameof(installation), (int)installation, typeof(Installation));
}
}
else
{
newApp = new InstalledApplication(description);
}
_pendingInstallations.Add(newApp.Name, newApp);
}
}
/// <summary>
/// Creates a new (empty) installed application from the given description.
/// </summary>
/// <param name="description"></param>
/// <exception cref="ArgumentNullException">When <paramref name="description"/> is null</exception>
/// <exception cref="ArgumentNullException">When description.Name is null</exception>
public InstalledApplication(ApplicationDescriptor description)
{
if (description == null)
{
throw new ArgumentNullException(nameof(description));
}
// ReSharper disable NotResolvedInText
if (description.Name == null)
{
throw new ArgumentNullException("description.Name");
}
// ReSharper restore NotResolvedInText
Descriptor = description;
Files = new List <InstalledFile>();
}
/// <inheritdoc />
public IApplicationInstaller StartInstallation(ApplicationDescriptor description,
Installation installation = Installation.FailOnUpgrade)
{
return(new ApplicationInstaller(_internalWatchdog, description, installation));
}