protected override void Execute(NativeActivityContext context)
{
WorkflowDataContext dataContext = context.DataContext;
PropertyDescriptorCollection propertyDescriptorCollection = dataContext.GetProperties();
string sessionId = string.Empty;
int fileSystemItemId = 0;
foreach (PropertyDescriptor propertyDesc in propertyDescriptorCollection)
{
if (propertyDesc.Name == "ArgSessionId")
{
sessionId = propertyDesc.GetValue(dataContext) as string;
break;
}
}
foreach (PropertyDescriptor propertyDesc in propertyDescriptorCollection)
{
if (propertyDesc.Name == "ArgFileSystemItemId")
{
fileSystemItemId = (int)propertyDesc.GetValue(dataContext);
break;
}
}
if (string.IsNullOrWhiteSpace(sessionId))
{
LogHelper.AddGeneralLog(GeneralLogTypeEnum.ActivityError, $"SessionId is null.");
return;
}
if (fileSystemItemId == 0)
{
LogHelper.AddSessionLog(SessionLogTypeEnum.ActivityError, sessionId, $"FileSystemItemId is null.");
return;
}
FileSystemItemDto fileSystemItem = null;
try
{
using (var sqlDbContext = new SqlDbContext())
{
fileSystemItem = sqlDbContext.FileSystemItems.FirstOrDefault(x => x.Id == fileSystemItemId);
}
}
catch (Exception ex)
{
LogHelper.AddSessionLog(SessionLogTypeEnum.ActivityError, sessionId, $"Exception has been thrown when getting fileSystemItem. FileSystemItemId: {fileSystemItemId}", ex);
return;
}
var targetFile = TargetFilePathForTextFile.Get(context);
int counter = 0;
while (true)
{
counter++;
if (File.Exists(targetFile))
{
var directory = Path.GetDirectoryName(targetFile);
var fileName = Path.GetFileNameWithoutExtension(targetFile);
var extension = Path.GetExtension(targetFile);
targetFile = Path.Combine(directory, fileName + counter + extension);
}
else
{
break;
}
}
try
{
TempData.Instance.TempPath = Path.GetTempPath();
using (PDFDoc doc = PDFDoc.Open(fileSystemItem.FullPath))
{
if (doc.GetText() == string.Empty)
{
doc.Ocr(OcrMode.Tesseract, "tur", WriteTextMode.Word);
doc.Save(TargetFilePathForPDFFile.Get(context));
var ocrText = doc.GetText();
File.WriteAllText(TargetFilePathForTextFile.Get(context), ocrText);
}
}
}
catch (Exception ex)
{
LogHelper.AddFileSystemItemLog(fileSystemItemId, fileSystemItem.SourceId, sessionId, FileSystemItemLogTypeEnum.StoppedWithError, $"Exception has been thrown in OCR operation. FileSystemItemId: {fileSystemItemId}", ex);
return;
}
LogHelper.AddFileSystemItemLog(fileSystemItem.Id, fileSystemItem.SourceId, sessionId, FileSystemItemLogTypeEnum.TesseractOcrOk);
Result.Set(context, true);
}