public async Task<ExtractProgramResult> ExtractProgram(CancellationToken taskCancellationToken)
{
ExtractProgramResult _extractResult = new ExtractProgramResult { Status = ExtractProgramStatus.Success };
try
{
if (_programStream == null && _onlineProgram == null)
throw new Exception(
"SetProgramStream or SetDownloadHeader have to be called before calling StartImportProgram.");
if (_programStream == null && _onlineProgram == null)
throw new Exception("SetProgramStream and SetDownloadHeader cannot be used together.");
// old simple portable downloader
var cancellationTokenSource = new CancellationTokenSource();
if (_onlineProgram != null)
{
_programStream = await Task.Run(() => ServiceLocator.WebCommunicationService.DownloadAsync(
_onlineProgram.DownloadUrl, _onlineProgram.Name, cancellationTokenSource.Token), taskCancellationToken);
}
// new downloader
//if (_onlineProgram != null)
//{
// await Task.Run(() => ServiceLocator.WebCommunicationService.DownloadAsyncAlternativ(
// _onlineProgram.DownloadUrl, _onlineProgram.ProjectName), taskCancellationToken);
//}
//using (var storage = StorageSystem.GetStorage())
//{
// var stream = await storage.OpenFileAsync(Path.Combine(StorageConstants.TempProgramImportZipPath, _onlineProgram.ProjectName + ".catrobat"),
// StorageFileMode.Open, StorageFileAccess.Read);
// await ServiceLocator.ZipService.UnzipCatrobatPackageIntoIsolatedStorage(
// stream, StorageConstants.TempProgramImportPath);
//}
if (_cancellationTokenSource.Token.IsCancellationRequested == false)
{
await ServiceLocator.ZipService.UnzipCatrobatPackageIntoIsolatedStorage(
_programStream, StorageConstants.TempProgramImportPath);
}
}
catch (Exception)
{
_extractResult.Status = ExtractProgramStatus.Error;
}
using (var storage = StorageSystem.GetStorage())
{
await storage.DeleteDirectoryAsync(StorageConstants.TempProgramImportZipPath);
}
return _extractResult;
}
