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);
        }
        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;
            }

            if (File.Exists(SourceFilePath.Get(context)) == false)
            {
                LogHelper.AddFileSystemItemLog(fileSystemItem.Id, fileSystemItem.SourceId, sessionId, FileSystemItemLogTypeEnum.SaveTextDataFileNotFound, $"File path: {SourceFilePath.Get(context)}.");
                return;
            }
            var content = File.ReadAllText(SourceFilePath.Get(context));

            try
            {
                using (var sqlDbContext = new SqlDbContext())
                {
                    var saveResult1 = sqlDbContext.SaveChanges();

                    var oldItemCount = sqlDbContext.ClearTexts.Count(x => x.FileSystemItemId == fileSystemItemId);
                    if (oldItemCount == 0)
                    {
                        var clearTextDto = new ClearTextDto
                        {
                            FileSystemItemId = fileSystemItemId,
                            TextInFile       = content,
                        };
                        sqlDbContext.ClearTexts.Add(clearTextDto);
                        var saveResult2 = sqlDbContext.SaveChanges();
                    }
                    else
                    {
                        var oldClearText = sqlDbContext.ClearTexts.FirstOrDefault(x => x.FileSystemItemId == fileSystemItemId);
                        var sql          = "UPDATE ClearText SET TextInFile = @TextInFile WHERE Id = @Id";
                        var executeCount = sqlDbContext.Database.ExecuteSqlCommand(sql, content, oldClearText.Id);
                    }
                }
                LogHelper.AddFileSystemItemLog(fileSystemItem.Id, fileSystemItem.SourceId, sessionId, FileSystemItemLogTypeEnum.SaveTextDataOk);
            }
            catch (Exception ex)
            {
                LogHelper.AddSessionLog(SessionLogTypeEnum.ActivityError, sessionId, $"Exception has been thrown when getting fileSystemItem. FileSystemItemId: {fileSystemItemId}", ex);
                return;
            }
        }
        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 targetFilePathForTextFile = TargetFilePathForTextFile.Get(context);
            var targetFilePathForPDFFile  = TargetFilePathForPDFFile.Get(context);

            targetFilePathForTextFile = FileHelper.GetUnusedFileName(Path.GetDirectoryName(targetFilePathForTextFile), Path.GetFileName(targetFilePathForTextFile));

            var dummyTiffFile = FileHelper.GetUnusedFileName(Path.GetTempPath(), Guid.NewGuid().ToString() + ".tiff");

            // C:\Users\efeo\Downloads\ImageMagick-7.0.8-12-portable-Q16-x64\convert.exe -density 300 c:\AkisLog\A.pdf -depth 8 -strip -background white -alpha off c:\AkisLog\a.tiff
            try
            {
                Process          process          = new Process();
                ProcessStartInfo processStartInfo = new ProcessStartInfo
                {
                    FileName  = @"C:\Users\efeo\Downloads\ImageMagick-7.0.8-12-portable-Q16-x64\convert.exe",
                    Arguments = $"-density 300 {fileSystemItem.FullPath} -depth 8 -strip -background white -alpha off {dummyTiffFile}"
                };
                process.StartInfo = processStartInfo;
                try
                {
                    process.Start();
                    process.WaitForExit();
                }
                catch (Exception ex)
                {
                    logger.Error(ex, $"Process error convert.");
                    return;
                }
            }
            catch (Exception ex)
            {
                LogHelper.AddFileSystemItemLog(fileSystemItemId, fileSystemItem.SourceId, sessionId, FileSystemItemLogTypeEnum.StoppedWithError, $"Exception has been thrown in OCR operation. FileSystemItemId: {fileSystemItemId}", ex);
                return;
            }

            var canOsman = false;

            if (File.Exists(dummyTiffFile))
            {
                try
                {
                    var fileInfo = new FileInfo(dummyTiffFile);
                    if (fileInfo.Length > 0)
                    {
                        canOsman = true;
                    }
                }
                catch (Exception ex)
                {
                    logger.Error(ex, $"Check file error.");
                    return;
                }
            }

            if (canOsman == false)
            {
            }

            var tessData = "";

            // "C:\Program Files (x86)\Tesseract-OCR\tesseract.exe" "c:\AkisLog\c.tiff" "c:\AkisLog\c" --tessdata-dir "C:\Program Files (x86)\Tesseract-OCR\tessdata" -l tur pdf
            try
            {
                Process          process          = new Process();
                ProcessStartInfo processStartInfo = new ProcessStartInfo
                {
                    FileName  = @"C:\Program Files (x86)\Tesseract-OCR\tesseract.exe",
                    Arguments = $"\"{dummyTiffFile}\" \"{targetFilePathForPDFFile}\" --tessdata-dir \"{tessData}\" -l tur pdf"
                };
                process.StartInfo = processStartInfo;
                try
                {
                    process.Start();
                    process.WaitForExit();
                }
                catch (Exception ex)
                {
                    logger.Error(ex, $"Process error tesseract.");
                    return;
                }
            }
            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);
        }