void sendThreadSafe(Action <OperationContext> method, OperationContext context)
{
SynchronizationContext.Send(delegate(object arg)
{
method((OperationContext)arg);
}, context);
}
private void onTaskStateChanged(OperationContext context)
{
if (TaskStateChanged != null)
{
TaskStateChanged(this, new TaskStateChangedEventArgs(context));
}
}
private void setExceptionState(OperationContext arg, Action <OperationContext> operationStateCallback, Exception ex)
{
arg.ReturnedException = ex;
onTaskStateChanged(arg);
if (operationStateCallback != null)
{
SynchronizationContext.Send(state => operationStateCallback(arg), arg);
}
}
private void AsyncOperationStateChange(OperationContext state)
{
bool startLoginOperation = state.State == OperationState.Started;
txtUserName.IsEnabled = !startLoginOperation;
txtPassword.IsEnabled = !startLoginOperation;
btnRegister.IsEnabled = !startLoginOperation;
btnForgotPassword.IsEnabled = !startLoginOperation;
btnLogin.IsEnabled = !startLoginOperation;
progressIndicator.IsRunning = startLoginOperation;
}
public void AddTask(OperationContext context, Action <OperationContext> statusChangeOperation)
{
tasksData.TryAdd(Task.CurrentId.Value, new TaskData(context.Task, context, statusChangeOperation));
onTaskListChanged();
}
public TaskData(Task task, OperationContext context, Action <OperationContext> statusChangeOperation)
{
Task = task;
Context = context;
StatusChangeOperation = statusChangeOperation;
}
public Task LogUnhandledExceptions(Task task, Action <OperationContext> exceptionCallback, OperationContext operationContext)
{
task.ContinueWith(delegate(Task t)
{
Helper.EnsureThreadLocalized();
if (exceptionCallback != null)
{
SynchronizationContext.Send(delegate(object state)
{
exceptionCallback((OperationContext)state);
}, operationContext);
}
else
{
SynchronizationContext.Send(delegate(object state)
{
throw ((Task)state).Exception;
}, operationContext);
}
}, TaskContinuationOptions.OnlyOnFaulted);
return(task);
}
public TaskStateChangedEventArgs(OperationContext context)
{
this.context = context;
}
public CancellationTokenSource RunAsynchronousOperation(Action <OperationContext> method, Action <OperationContext> operationStateCallback = null, Action <OperationContext> exceptionCallback = null, bool addToList = true)
{
OperationContext context = new OperationContext(this);
var tokenSource = new CancellationTokenSource();
context.CancellatioToken = tokenSource.Token;
context.Task = Task.Factory.StartNew(delegate(object cancellationToken)
{
var arg = (OperationContext)cancellationToken;
try
{
if (addToList)
{
AddTask(context, operationStateCallback);
}
Helper.EnsureThreadLocalized();
arg.State = OperationState.Started;
onTaskStateChanged(arg);
if (operationStateCallback != null)
{
sendThreadSafe(operationStateCallback, arg);
}
method((OperationContext)cancellationToken);
if (addToList && !ContainsTask(arg.Task))
{
return;
}
arg.State = OperationState.Ended;
onTaskStateChanged(arg);
if (operationStateCallback != null)
{
sendThreadSafe(operationStateCallback, arg);
}
}
catch (OperationCanceledException)
{
arg.State = OperationState.Cancelled;
onTaskStateChanged(arg);
if (operationStateCallback != null)
{
sendThreadSafe(operationStateCallback, arg);
}
}
catch (LicenceException ex)
{
setExceptionState(arg, operationStateCallback, ex);
SynchronizationContext.Send(state => ExceptionHandler.Default.Process(ex, Strings.ErrorLicence, ErrorWindow.MessageBox), arg);
}
catch (ProfileDeletedException ex)
{
setExceptionState(arg, operationStateCallback, ex);
UserContext.Current.Logout(resetAutologon: false, skipLogoutOnServer: true);
SynchronizationContext.Send(state => ExceptionHandler.Default.Process(ex, Strings.ErrorCurrentProfileDeleted, ErrorWindow.MessageBox), arg);
}
catch (UserDeletedException ex)
{
setExceptionState(arg, operationStateCallback, ex);
SynchronizationContext.Send(state => ExceptionHandler.Default.Process(ex, Strings.ErrorProfileDeleted, ErrorWindow.MessageBox), arg);
}
catch (OldDataException ex)
{
setExceptionState(arg, operationStateCallback, ex);
SynchronizationContext.Send(state => ExceptionHandler.Default.Process(ex, Strings.ErrorOldDataModification, ErrorWindow.MessageBox), arg);
}
catch (ValidationException ex)
{
setExceptionState(arg, operationStateCallback, ex);
SynchronizationContext.Send(state => ExceptionHandler.Default.Process(ex, Strings.ErrorCurrentProfileDeleted, ErrorWindow.MessageBox), arg);
}
catch (EndpointNotFoundException ex)
{
setExceptionState(arg, operationStateCallback, ex);
UserContext.Current.Logout(resetAutologon: false, skipLogoutOnServer: true);
SynchronizationContext.Send(state => ExceptionHandler.Default.Process(ex, Strings.ErrorConnectionProblem, ErrorWindow.MessageBox), arg);
}
catch (TimeoutException ex)
{
setExceptionState(arg, operationStateCallback, ex);
UserContext.Current.Logout(resetAutologon: false, skipLogoutOnServer: true);
SynchronizationContext.Send(state => ExceptionHandler.Default.Process(ex, Strings.ErrorConnectionProblem, ErrorWindow.MessageBox), arg);
}
catch (DatabaseVersionException ex)
{
setExceptionState(arg, operationStateCallback, ex);
UserContext.Current.Logout(resetAutologon: false, skipLogoutOnServer: true);
SynchronizationContext.Send(state => ExceptionHandler.Default.Process(ex, Strings.ErrorOldVersionOfBodyArchitect, ErrorWindow.MessageBox), arg);
}
catch (MaintenanceException ex)
{
setExceptionState(arg, operationStateCallback, ex);
UserContext.Current.Logout(resetAutologon: false, skipLogoutOnServer: true);
SynchronizationContext.Send(state => ExceptionHandler.Default.Process(ex, Strings.ErrorMaintenanceMode, ErrorWindow.MessageBox), arg);
}
catch (Exception ex)
{
setExceptionState(arg, operationStateCallback, ex);
SynchronizationContext.Send(state => ExceptionHandler.Default.Process(ex, ex.Message, ErrorWindow.EMailReport), arg);
//Application.Exit();
}
finally
{
RemoveTask(Task.CurrentId.Value);
}
}, context, tokenSource.Token);
if (exceptionCallback != null)
{
LogUnhandledExceptions(context.Task, exceptionCallback, context);
}
return(tokenSource);
}
