public TaskData GetTaskData()
{
if (taskDataInvalid)
{
return(null);
}
if (task != null && task.ExecutionState == ExecutionState.Started)
{
throw new InvalidStateException("Task is still running");
}
TaskData taskData = null;
if (task == null)
{
if (CurrentException == null)
{
CurrentException = new Exception("Task with id " + this.TaskId + " is null, sending empty task");
}
}
else
{
taskData = new TaskData();
taskData.Data = PersistenceUtil.Serialize(task);
taskData.TaskId = TaskId;
}
return(taskData);
}
public Tuple <TaskData, DateTime> GetTaskDataSnapshot()
{
if (taskDataInvalid)
{
return(null);
}
Tuple <TaskData, DateTime> snapshot = null;
if (task == null)
{
if (CurrentException == null)
{
CurrentException = new Exception("Task with id " + this.TaskId + " is null, sending empty task");
}
}
else
{
var taskData = new TaskData();
var pausedTrigger = new EventWaitHandle(false, EventResetMode.ManualReset);
EventHandler pausedHandler = null;
pausedHandler = (s, e) => {
task.TaskPaused -= pausedHandler;
task.TaskPaused += Task_TaskPaused;
pausedTrigger.Set();
};
task.TaskPaused -= Task_TaskPaused;
task.TaskPaused += pausedHandler;
task.Pause();
pausedTrigger.WaitOne();
taskData.Data = PersistenceUtil.Serialize(task);
var timestamp = DateTime.Now;
EventHandler startedHandler = null;
startedHandler = (s, e) => {
task.TaskStarted -= startedHandler;
task.TaskStarted += Task_TaskStarted;
};
task.TaskStarted -= Task_TaskStarted;
task.TaskStarted += startedHandler;
task.Start();
taskData.TaskId = TaskId;
snapshot = Tuple.Create(taskData, timestamp);
}
return(snapshot);
}
