private void DownloadCompleted(object sender, TaskEventArgs e)
{
string message = "";
if (e.Error != null)
{
message = "Error downloading: " + e.Error.Message;
}
else
{
message = "Downloaded.\nResult:";
string txtFilePath = e.UserState as string;
IsolatedStorageFile storage = IsolatedStorageFile.GetUserStoreForApplication();
IsolatedStorageFileStream file = storage.OpenFile(txtFilePath, FileMode.Open, FileAccess.Read);
using (StreamReader reader = new StreamReader(file))
{
message += reader.ReadToEnd();
}
}
Dispatcher.BeginInvoke(() =>
{
displayMessage(message);
}
);
}
private void DownloadCompleted(object sender, TaskEventArgs e)
{
UserTask task = e.UserState as UserTask;
if (e.Error != null)
{
task.TaskStatus = "Downloading error";
task.OutputFilePath = "<error>";
task.ErrorMessage = e.Error.Message;
moveTaskToCompleted(task);
return;
}
if (task.IsFieldLevel)
{
task.RecognizedText = FieldLevelXml.ReadText(task.OutputFilePath);
}
task.TaskStatus = "Ready";
moveTaskToCompleted(task);
}
private void ProcessingCompleted(object sender, TaskEventArgs e)
{
UserTask task = e.UserState as UserTask;
if (task.SourceIsTempFile)
{
File.Delete(task.SourceFilePath);
}
if (e.Error != null)
{
task.TaskStatus = "Processing error";
task.OutputFilePath = "<error>";
task.ErrorMessage = e.Error.Message;
moveTaskToCompleted(task);
return;
}
if (e.Result.Status == TaskStatus.NotEnoughCredits)
{
task.TaskStatus = "Not enough credits";
task.OutputFilePath = "<not enough credits>";
MessageBox.Show("Not enough credits to process the file.\nPlease add more pages to your application's account.",
"Error", MessageBoxButton.OK, MessageBoxImage.Exclamation);
moveTaskToCompleted(task);
return;
}
if (e.Result.Status != TaskStatus.Completed)
{
task.TaskStatus = "Internal server error";
moveTaskToCompleted(task);
return;
}
task.TaskStatus = "Downloading";
// Start downloading
restClientAsync.DownloadFileAsync(e.Result, task.OutputFilePath, task);
}
private void onDownloadFileCompleted(object sender, TaskEventArgs e)
{
if (DownloadFileCompleted != null)
{
DownloadFileCompleted(sender, e);
}
}
private void ProcessingCompleted(object sender, TaskEventArgs e)
{
if (e.Error != null)
{
Dispatcher.BeginInvoke(() =>
{
displayMessage("Processing error: " + e.Error.Message);
}
);
return;
}
Dispatcher.BeginInvoke(() =>
{
displayMessage("Processing completed. Downloading..");
}
);
// Download a file
string outputPath = "result.txt";
Task task = e.Result;
abbyyClient.DownloadFileAsync(task, outputPath, outputPath);
}
private void downloadCompletionMethod(
Task task,
Exception exception,
bool canceled,
AsyncOperation asyncOp)
{
if (!canceled)
{
lock (downloadJobs)
{
downloadJobs.Remove(asyncOp.UserSuppliedState);
}
}
TaskEventArgs e = new TaskEventArgs(task, exception, canceled, asyncOp.UserSuppliedState);
asyncOp.PostOperationCompleted(onDownloadCompletedDelegate, e);
}
private void onProcessingCompleted(object sender, TaskEventArgs e)
{
if (TaskProcessingCompleted != null)
{
TaskProcessingCompleted(sender, e);
}
}
private void processFieldWorker(string filePath, IProcessingSettings settings,
AsyncOperation asyncOp)
{
Exception e = null;
Task task = new Task();
try
{
if (settings is TextFieldProcessingSettings)
{
task = _syncClient.ProcessTextField(filePath, settings as TextFieldProcessingSettings);
}
else if (settings is BarcodeFieldProcessingSettings)
{
task = _syncClient.ProcessBarcodeField(filePath, settings as BarcodeFieldProcessingSettings);
}
else if (settings is CheckmarkFieldProcessingSettings)
{
task = _syncClient.ProcessCheckmarkField(filePath, settings as CheckmarkFieldProcessingSettings);
}
else
{
throw new ArgumentException("Invalid type of processing settings");
}
// Notify that upload was completed
Task uploadedTask = new Task(task.Id, TaskStatus.Submitted);
UploadCompletedEventArgs uploadCompletedEventArgs = new UploadCompletedEventArgs(uploadedTask, asyncOp.UserSuppliedState);
asyncOp.Post(onUploadCompletedDelegate, uploadCompletedEventArgs);
// Wait until task finishes
startTaskMonitorIfNecessary();
_taskList.AddTask(task);
task = waitUntilTaskFinishes(task);
}
catch (Exception ex)
{
e = ex;
}
lock (processJobs)
{
processJobs.Remove(asyncOp.UserSuppliedState);
}
bool canceled = false;
// Package the results of the operation in EventArgs
TaskEventArgs ev = new TaskEventArgs(task, e, canceled, asyncOp.UserSuppliedState);
// End the task. The asyncOp object is responsible
// for marshaling the call.
asyncOp.PostOperationCompleted(onProcessingCompleteDelegate, ev);
}
// This is the method that the underlying, free-threaded
// asynchronous behavior will invoke. This will happen on
// a worker thread
private void processCompletionMethod(
Task task,
Exception exception,
bool canceled,
AsyncOperation asyncOp)
{
// If the task was not previously canceled,
// remove the task from the lifetime collection.
if (!canceled)
{
lock (processJobs)
{
processJobs.Remove(asyncOp.UserSuppliedState);
}
}
// Package the results of the operation in EventArgs
TaskEventArgs e = new TaskEventArgs(task, exception, canceled, asyncOp.UserSuppliedState);
// End the task. The asyncOp object is responsible
// for marshaling the call.
asyncOp.PostOperationCompleted(onProcessingCompleteDelegate, e);
// Note that after the call to OperationCompleted,
// asyncOp is no longer usable, and any attempt to use it
// will cause an exception to be thrown.
}
private void processingCompleted(object operationState)
{
TaskEventArgs e = operationState as TaskEventArgs;
onProcessingCompleted(null, e);
}
private void downloadCompleted(object operationState)
{
TaskEventArgs e = operationState as TaskEventArgs;
onDownloadFileCompleted(null, e);
}
private void ProcessingCompleted(object sender, TaskEventArgs e)
{
UserTask task = e.UserState as UserTask;
if (task.SourceIsTempFile)
{
File.Delete(task.SourceFilePath);
}
if (e.Error != null)
{
task.TaskStatus = "Processing error";
task.OutputFilePath = "<error>";
task.ErrorMessage = e.Error.Message;
moveTaskToCompleted(task);
return;
}
if (e.Result.Status == TaskStatus.NotEnoughCredits)
{
task.TaskStatus = "Not enough credits";
moveTaskToCompleted(task);
return;
}
if (e.Result.Status != TaskStatus.Completed)
{
task.TaskStatus = "Internal server error";
moveTaskToCompleted(task);
return;
}
task.TaskStatus = "Downloading";
// Start downloading
restClientAsync.DownloadFileAsync(e.Result, task.OutputFilePath, task);
}
/// <summary>
/// Submit and process image asynchronously.
/// Performs callbacks:
/// UploadFileCompleted
/// TaskProcessingCompleted
/// </summary>
/// <param name="filePath">Path to file in isolated storage</param>
/// <param name="settings"></param>
/// <param name="userState"></param>
public void ProcessImageAsync(string filePath, ProcessingSettings settings, object userState)
{
BackgroundWorker w = new BackgroundWorker();
w.DoWork += new DoWorkEventHandler((sender, e) =>
{
Task task = null;
try
{
task = _syncClient.ProcessImage(filePath, settings);
UploadCompletedEventArgs uploadArgs = new UploadCompletedEventArgs(task, userState);
onUploadFileCompleted(sender, uploadArgs);
// Wait until task finishes
while (true)
{
task = _syncClient.GetTaskStatus(task.Id);
if (!task.IsTaskActive())
{
break;
}
Thread.Sleep(1000);
}
TaskEventArgs taskArgs = new TaskEventArgs(task, null, false, userState);
onProcessingCompleted(sender, taskArgs);
}
catch (Exception ex)
{
TaskEventArgs taskArgs = new TaskEventArgs(task, ex, false, userState);
onProcessingCompleted(sender, taskArgs);
}
}
);
w.RunWorkerAsync();
}
/// <summary>
/// Download file asynchronously
/// Performs DownloadFileCompleted callback
/// </summary>
public void DownloadFileAsync(Task task, string outputPath, object userState)
{
BackgroundWorker w = new BackgroundWorker();
w.DoWork += new DoWorkEventHandler((sender, e) =>
{
try
{
_syncClient.DownloadResult(task, outputPath);
TaskEventArgs taskArgs = new TaskEventArgs(task, null, false, userState);
onDownloadFileCompleted(sender, taskArgs);
}
catch (Exception ex)
{
TaskEventArgs taskArgs = new TaskEventArgs(task, ex, false, userState);
onDownloadFileCompleted(sender, taskArgs);
}
}
);
w.RunWorkerAsync();
}
public void DownloadCompleted(object sender, TaskEventArgs e)
{
Char type = 'D';
string text;
StoreData store = new StoreData();
MongoDBService.Transaction p = new MongoDBService.Transaction();
if (e.Error != null)
{
message = "Error downloading: " + e.Error.Message;
}
else
{
string txtFilePath = e.UserState as string;
IsolatedStorageFile storage = IsolatedStorageFile.GetUserStoreForApplication();
IsolatedStorageFileStream file = storage.OpenFile(txtFilePath, FileMode.Open, FileAccess.Read);
IsolatedStorageFileStream fileStream = storage.OpenFile(txtFilePath, FileMode.Open, FileAccess.Read);
StreamReader reader = new StreamReader(file);
text = reader.ReadToEnd();
if (text.Contains("WALGREENS"))
type = 'W';
else if (text.Contains("Tops"))
type = 'T';
switch (type)
{
case 'W':
using (StreamReader newReader = new StreamReader(fileStream))
{
store.Address = newReader.ReadLine() + newReader.ReadLine();
store.StoreName = "WALGREENS";
//Get for storeid from DB
newReader.ReadLine();
newReader.ReadLine();
newReader.ReadLine();
newReader.ReadLine();
while (true)
{
p.Name = newReader.ReadLine();
if (p.Name.Equals("SUBTOTAL"))
break;
p.ID = double.Parse(newReader.ReadLine());
newReader.ReadLine();
p.quantity = newReader.ReadLine();
p.cost = double.Parse(newReader.ReadLine());
insertData(p);
}
}
break;
case 'T':
using (StreamReader newReader = new StreamReader(file))
{
while (!newReader.ReadLine().Contains("Tops Market")) ;
store.Address = newReader.ReadLine() + newReader.ReadLine();
store.StoreName = "WALGREENS";
//get the storeid from DB
newReader.ReadLine();
newReader.ReadLine();
newReader.ReadLine();
newReader.ReadLine();
}
break;
}
}
}
/// <summary>
/// Submit and process image asynchronously.
/// Performs callbacks:
/// UploadFileCompleted
/// TaskProcessingCompleted
/// </summary>
/// <param name="filePath">Path to file in isolated storage</param>
/// <param name="settings"></param>
/// <param name="userState"></param>
public void ProcessImageAsync(string filePath, ProcessingSettings settings, object userState)
{
BackgroundWorker w = new BackgroundWorker();
w.DoWork += new DoWorkEventHandler((sender, e) =>
{
OcrSdkTask task = null;
try
{
task = _syncClient.ProcessImage(filePath, settings);
UploadCompletedEventArgs uploadArgs = new UploadCompletedEventArgs(task, userState);
onUploadFileCompleted(sender, uploadArgs);
// Wait until task finishes
while (true)
{
task = _syncClient.GetTaskStatus(task.Id);
if (!task.IsTaskActive())
{
break;
}
Thread.Sleep(1000);
}
if (task.Status == TaskStatus.NotEnoughCredits)
{
throw new Exception("Not enough credits to process image. Please add more pages to your application's account.");
}
TaskEventArgs taskArgs = new TaskEventArgs(task, null, false, userState);
onProcessingCompleted(sender, taskArgs);
}
catch (Exception ex)
{
TaskEventArgs taskArgs = new TaskEventArgs(task, ex, false, userState);
onProcessingCompleted(sender, taskArgs);
}
}
);
w.RunWorkerAsync();
}
