public Task <bool> Settlement(SettlementModel settlement)
{
//调用事件，为Event Sourse作准备
switch (this.State.Status)
{
case 0:
RaiseEvent(
new SettlementBeginEvent {
SettlementModel = settlement
});
break;
case 1:
RaiseEvent(new SettlementEndEvent {
SettlementModel = settlement
});
break;
case 2:
RaiseEvent(new SettlementCompleteEvent {
SettlementModel = settlement
});
break;
}
ConfirmEvents();
return(Task.FromResult(true));
}
bool SettlementBegin(SettlementGrainState state, SettlementModel settlement)
{
if (RadomNo())
{
throw new Exception("SettlementBegin异常");
}
state.Status = 1;
return(true);
}
bool SettlementComplete(SettlementGrainState state, SettlementModel settlement)
{
if (RadomNo())
{
throw new Exception("SettlementComplete异常");
}
state.Status = 3;
return(true);
}
/// <summary>
/// 处理事件
/// </summary>
/// <param name="state"></param>
/// <param name="event"></param>
protected override void TransitionState(SettlementGrainState state, ISettlementEvent @event)
{
SettlementModel settlement = null;
try
{
switch (@event.ID)
{
case "SettlementBeginEvent":
settlement = (@event as SettlementBeginEvent).SettlementModel;
if (SettlementBegin(state, settlement))
{
RaiseEvent(new SettlementEndEvent {
SettlementModel = settlement
});
}
break;
case "SettlementEndEvent":
settlement = (@event as SettlementEndEvent).SettlementModel;
if (SettlementEnd(state, settlement))
{
RaiseEvent(new SettlementCompleteEvent {
SettlementModel = settlement
});
}
break;
case "SettlementCompleteEvent":
settlement = (@event as SettlementCompleteEvent).SettlementModel;
if (SettlementComplete(state, settlement))
{
RaiseConditionalEvent(new SettlementOkEvent());
}
break;
}
}
catch (Exception exc)
{
Console.WriteLine(exc.Message);
}
}