private static void SimulateWorkerRole(object workerRoleParameters)
{
if (workerRoleParameters == null)
{
throw (new ArgumentNullException("workerRoleParameters"));
}
if (workerRoleParameters is WorkerRoleParameters)
{
WorkerRoleSimulation.SimulateWorkerRole((WorkerRoleParameters)workerRoleParameters);
}
else
{
throw (new ArgumentException("The argument [workerRoleParameters] must be of type [WorkerRoleParameters].", "workerRoleParameters"));
}
}
public static bool TenantDocumentPerformOcr(Tenant tenant, Document document, WorkerRoleParameters workerRoleParameters, out Exception exception)
{
var result = false;
Document ocrDocument = null;
List <DocumentTemplate> ocrDocumentTemplate = null;
List <DocumentFragment> ocrDocumentFragment = null;
exception = null;
try
{
List <Template> allTemplates = null;
List <TemplateElement> allElements = null;
using (var context = new ContextTenant(tenant.DatabaseConnectionString))
{
allTemplates = context
.Templates
.AsNoTracking()
.Include(t => t.Elements)
.Include(t => t.Elements.Select(x => x.ElementDetails))
.Where(t => (t.IsActive == true) && (t.IsFinalized == true))
.ToList();
if (allTemplates.Count <= 0)
{
throw (new Exception("No templates found."));
}
}
// workerRoleParameters???
// Download file from azure.
Stream stream = null;
List <OcrResultInfo> ocrresultinfos = new List <OcrResultInfo> ();
if (WorkerRoleSimulation.GetTenantDocumentFileStream(tenant, document, out stream, out exception))
{
Image documentImage = null;
using (var image = Image.FromStream(stream))
{
documentImage = (Image)image.Clone();
// LeadTools code.
// Stream and image available.
}
// TODO: Replace with Server.MapPath.
//LeadToolsOCR leadtoolsocr = new LeadToolsOCR (workerRoleParameters.OcrEngineSettings.GetPathData().FullName, tenant.Id.ToString (), string.Empty, out exception);
//if (exception != null) { throw exception; }
List <LeadtoolsBarcodeData> barcodedata = null;
bool foundbarcode = false; // leadtoolsocr.ReadBarcode (documentImage, out barcodedata, out exception);
//if (exception != null) { throw exception; }
if (foundbarcode)
{
//What to do if multiple barcodes are found.
int templateid = 0;
bool foundId = int.TryParse(barcodedata.First().Value, out templateid);
if (!(foundId) || templateid <= 0)
{
} //What to do if Form Id is Not Found by the barcode
Template template = allTemplates.Where(t => t.Id == ((long)templateid)).ToArray().FirstOrDefault();
if (template.TemplateType == TemplateType.Form)
{
double _computeddifference = 0.0;
if ((documentImage.Width <= documentImage.Height) && (!(documentImage.Height <= 0)))
{
_computeddifference = ((Convert.ToDouble(documentImage.Width)) / (Convert.ToDouble(documentImage.Height)));
}
else
{
if (!(documentImage.Width <= 0))
{
_computeddifference = documentImage.Height / documentImage.Width;
}
}
var elements = allElements.Where(e => e.TemplateId == (long)templateid).ToList();
List <ComputeCoordinates> cordlistlist = new List <ComputeCoordinates> ();
//cordlistlist = leadtoolsocr.GetAllZoneData (elements, _computeddifference, documentImage);
//what to do with form matched results
//foreach (ComputeCoordinates cordata in cordlistlist)
//{
// returnedresult += cordata.Text;
//}
}
}
else
{
result = AutoOCR(workerRoleParameters.OcrEngineSettings, tenant, documentImage, document, allTemplates, out ocrDocument, out ocrDocumentFragment, out ocrDocumentTemplate, out exception);
if (exception != null)
{
throw exception;
}
}
// Perform OCR and time-consuming tasks.
}
else
{
throw (exception);
}
using (var context = new ContextTenant(tenant.DatabaseConnectionString))
{
using (var transaction = context.Database.BeginTransaction())
{
try
{
if (ocrDocument != null)
{
context.Documents.Attach(ocrDocument);
context.Entry(ocrDocument).State = EntityState.Modified;
context.SaveChanges();
}
if (ocrDocumentFragment != null)
{
foreach (var documentfragment in ocrDocumentFragment)
{
context.DocumentFragments.Add(documentfragment);
context.SaveChanges();
}
}
if (ocrDocumentTemplate != null)
{
foreach (var documenttemplate in ocrDocumentTemplate)
{
context.DocumentTemplate.Add(documenttemplate);
context.SaveChanges();
}
}
//context.Templates.Attach(templates[0]);
context.SaveChanges();
// Do not call this line from anywhere else.
transaction.Commit();
}
catch (Exception e)
{
transaction.Rollback();
}
}
}
result = true;
}
catch (Exception e)
{
exception = e;
}
return(result);
}
private static void SimulateWorkerRole(WorkerRoleParameters workerRoleParameters)
{
Exception exception = null;
Console.WriteLine();
Console.WriteLine();
Console.Write("OCR Thread Started.");
try
{
workerRoleParameters.CancellationToken.ThrowIfCancellationRequested();
do
{
try
{
Document document = null;
List <Tenant> tenants = null;
workerRoleParameters.CancellationToken.ThrowIfCancellationRequested();
Console.WriteLine();
Console.WriteLine();
Console.Write("Getting tenants.");
if (Business.GetTenants(out tenants, out exception))
{
Console.WriteLine();
Console.Write($"Found {tenants.Count:N0} tenants.");
foreach (var tenant in tenants)
{
workerRoleParameters.CancellationToken.ThrowIfCancellationRequested();
Console.WriteLine();
Console.Write($"Processing tenant: [{tenant.Id}]: [{tenant.Domain}].");
Console.WriteLine();
Console.Write($"Getting queued document.");
if (Business.TenantDocumentGet(tenant, out document, out exception))
{
if (document == null)
{
Console.WriteLine();
Console.Write($"None found.");
}
else
{
Console.WriteLine();
Console.Write($"Found document: Id: {document.Id}, Name: {document.Name}, Folder: {document.Folder?.Name}, User: {document.User.UserName}.");
try
{
workerRoleParameters.CancellationToken.ThrowIfCancellationRequested();
if (!WorkerRoleSimulation.TenantDocumentPerformOcr(tenant, document, workerRoleParameters, out exception))
{
Console.WriteLine();
Console.Write($"Exception: {exception.Message}");
}
}
catch (OperationCanceledException)
{
// Ignore.
}
catch (Exception e)
{
Console.WriteLine();
Console.Write($"Exception: {e.Message}");
}
}
}
else
{
// TODO: Requires an exit strategy.
Console.WriteLine();
Console.Write($"Exception: {exception.Message}");
}
Thread.Sleep(1000);
}
}
else
{
// TODO: Requires an exit strategy.
Console.WriteLine();
Console.Write($"Exception: {exception.Message}");
}
Thread.Sleep(1000);
Console.WriteLine();
Console.Write("Working");
}
catch (OperationCanceledException)
{
throw;
}
catch (Exception e)
{
// TODO: Log.
// TODO: Decide whether to exit loop.
Trace.TraceError(e.ToString());
throw;
}
}while (!workerRoleParameters.CancellationToken.IsCancellationRequested);
}
catch (OperationCanceledException)
{
// Ignore.
}
catch
{
// TODO: Log.
throw;
}
}