public bool ExecuteNext()
{
if (IsCompleted)
{
throw new InvalidOperationException();
}
CommandScriptStep currentItem = _nextTask.Dequeue();
var command = (Command)Activator.CreateInstance(currentItem.ActivityType);
try
{
CommandScriptStepAudit audit = command.Execute(currentItem);
if (audit != null)
{
_completedTasks.Push(audit);
return(true);
}
}
catch (Exception ex)
{
_log.Error("CommandScript Exception", ex);
_exceptions.Add(ex);
}
return(false);
}
public bool UndoLast()
{
if (!IsInProgress)
{
throw new InvalidOperationException();
}
CommandScriptStepAudit currentItem = _completedTasks.Pop();
var activity = (Command)Activator.CreateInstance(currentItem.CommandType);
try
{
return(activity.Compensate(currentItem, this));
}
catch (Exception ex)
{
_log.Error("CommandScript Compensation Exception", ex);
throw;
}
}