public void Execute(TInstance instance)
{
while (true)
{
try
{
_activities.Execute(instance);
return;
}
catch (Exception ex)
{
try
{
ExceptionHandlerResult result = _exceptionHandler.Handle(instance, _event, ex);
if (result == ExceptionHandlerResult.Unhandled)
{
throw;
}
if (result == ExceptionHandlerResult.Return)
{
return;
}
}
catch (Exception innerException)
{
string message = "{0} occurred while handling {1} during {2}"
.FormatWith(innerException.GetType().ToShortTypeName(), _event.Name, _state.Name);
throw new StateMachineWorkflowException(message, innerException);
}
}
}
}
public ExceptionHandlerResult Handle(TInstance instance, Event eevent, Exception exception)
{
Type exceptionType = exception.GetType();
IEnumerable <EventExceptionHandler <TInstance> > matching = _handlers
.Where(x => x.ExceptionType.IsAssignableFrom(exceptionType));
var finalResult = ExceptionHandlerResult.Unhandled;
foreach (var handler in matching)
{
ExceptionHandlerResult result = handler.Handle(instance, eevent, exception);
if (result == ExceptionHandlerResult.Return)
{
finalResult = ExceptionHandlerResult.Return;
continue;
}
if (result != ExceptionHandlerResult.Unhandled)
{
return(result);
}
}
return(finalResult);
}
public ExceptionHandlerResult Handle(TInstance instance, Event eevent, TBody body, Exception exception)
{
Type exceptionType = exception.GetType();
IEnumerable <EventExceptionHandler <TInstance, TBody> > matching = _handlers
.Where(x => x.ExceptionType.IsAssignableFrom(exceptionType));
foreach (var handler in matching)
{
ExceptionHandlerResult result = handler.Handle(instance, eevent, body, exception);
if (result != ExceptionHandlerResult.Unhandled)
{
return(result);
}
}
return(ExceptionHandlerResult.Unhandled);
}
public void Execute <T>(TInstance instance, T bodyT)
{
if (typeof(TBody) != typeof(T))
{
throw new StateMachineWorkflowException("Body type mismatch for message event: " + Event.Name);
}
var body = (TBody)((object)bodyT);
while (true)
{
try
{
_activities.Execute(instance, body);
return;
}
catch (Exception ex)
{
try
{
ExceptionHandlerResult result = _exceptionHandler.Handle(instance, _event, body, ex);
if (result == ExceptionHandlerResult.Unhandled)
{
throw;
}
if (result == ExceptionHandlerResult.Return)
{
return;
}
}
catch (Exception innerException)
{
string message = "{0} occurred while handling {1} during {2}"
.FormatWith(innerException.GetType().ToShortTypeName(), _event.Name, _state.Name);
throw new StateMachineWorkflowException(message, innerException);
}
}
}
}
