/// <summary>
/// Creates information system from selected file.
/// </summary>
/// <returns>Information system.</returns>
public static InformationSystem CreateFromFile(IDataFileParser parser, FileManager fileManager)
{
InformationSystem result = new InformationSystem()
{
Rows = parser.Parse(fileManager.FileStream),
Confidence = 0.0m,
Support = 0.0m,
Name = fileManager.FileName
};
return(result);
}
/// <summary>
/// Created dataset from uploaded file.
/// </summary>
/// <param name="fileName">Uploaded file name.</param>
/// <param name="file">Stream which contains uploaed file.</param>
public void ProcessUploadedFile(string fileName, Stream file)
{
if (file == null)
{
try
{
file = new FileStream(fileName, FileMode.Open);
}
catch (IOException)
{
View.NotifyAboutNoPermissionsToFile();
return;
}
}
FileManager manager = null;
try
{
manager = new FileManager(file, fileName);
}
catch (PartialAssociationRulesException ex)
{
if (ex.Exception == ExceptionsList.UnsuportedFileSelected)
{
View.NotifyAboutUnsupportedFileSelected();
}
return;
}
IDataFileParser parser =
Bootstrapper.ServiceLocator.GetService <IDataFileParser>(manager.Type);
if (ApplicationModel.System != null)
{
InformationSystem sys = null;
try
{
sys = InformationSystem.CreateFromFile(parser, manager);
}
catch (PartialAssociationRulesException ex)
{
switch (ex.Exception)
{
case ExceptionsList.ArgumentCountIncorrect:
View.NotifyAboutArgumentCountIncorrect();
break;
case ExceptionsList.RowsNotParsedCorrectly:
View.NotifyAboutRowsNotParsedCorrectly();
break;
case ExceptionsList.IncorrectNumberOfFilesInArchive:
View.NotifyAboutIncorrectNumberOfFilesInArchive();
break;
case ExceptionsList.IncorrectArchive:
View.NotifyAboutIncorrectArchive();
break;
}
return;
}
ApplicationModel.System.Rows = sys.Rows;
View.SetStartupValues();
}
else
{
//TODO. Find out why I've added this else statement..
ApplicationModel.System = InformationSystem.CreateFromFile(parser, manager);
}
viewModel.DataSetName = manager.FileName;
viewModel.ObjectsQuantity = ApplicationModel.System.Rows.Count;
viewModel.AttributesQuantity = ApplicationModel.System.Rows[0].Attributes.Count;
#if WEB
//Thread.Sleep(2000);
// UpdateSummaryUP();
viewModel.UpdateSummaryUP = true;
#endif
}
