/// <summary>
/// Get next valid state based on the current state and event given without changing the current state
/// If there is no valid next state, TaskStateTransitionException will be thrown.
/// </summary>
/// <param name="taskEvent"></param>
/// <returns></returns>
internal TaskState GetNext(TaskStateEvent taskEvent)
{
StateTransition <TaskState, TaskStateEvent> transition = new StateTransition <TaskState, TaskStateEvent>(_currentState, taskEvent);
TaskState nextState;
if (!Transitions.TryGetValue(transition, out nextState))
{
throw new TaskStateTransitionException(_currentState, taskEvent);
}
return(nextState);
}
/// <summary>
/// Based on the event and current state to determine the next state
/// </summary>
/// <param name="systemEvent"></param>
/// <returns></returns>
internal SystemState GetNext(SystemStateEvent systemEvent)
{
var transition = new StateTransition <SystemState, SystemStateEvent>(_currentState, systemEvent);
SystemState nextState;
if (!Transitions.TryGetValue(transition, out nextState))
{
throw new SystemStateTransitionException(_currentState, systemEvent);
}
return(nextState);
}
