/// <summary>
///
/// </summary>
/// <param name="owner"></param>
/// <param name="ownerEntry"></param>
/// <param name="entries"></param>
/// <param name="idCount"></param>
private void FillPreEntries(DomainEvent source, EventEntry sourceEntry, List <EventEntry> entries, ref int idCount)
{
const string argsCode = ""; //条目事件的参数在队列没执行的时候，是空的
foreach (var eventName in source.PreEvents)
{
var local = EventFactory.GetLocalEvent(eventName, DTObject.Empty, false);
if (local == null)
{
idCount++;
var entry = new EventEntry(sourceEntry, idCount, eventName, Guid.NewGuid(), argsCode);
entries.Add(entry);
}
else
{
//将本地事件转为条目
idCount++;
var localEntry = new EventEntry(sourceEntry, idCount, eventName, Guid.NewGuid(), argsCode);
FillPreEntries(local, localEntry, entries, ref idCount);
entries.Add(localEntry);
}
}
}
/// <summary>
/// 触发队列事件
/// </summary>
/// <param name="queue"></param>
private static void Raise(Guid queueId, EventCallback callback)
{
bool isSucceeded = false;
bool isRunning = false;
while (!isRunning && !isSucceeded)
{
DataContext.NewScope(() =>
{
//触发队列事件
var queue = EventQueue.Find(queueId);
var entry = queue.GetPreRaise();
if (!entry.IsEmpty())
{
var args = entry.GetArgs(); //获取条目的事件参数
EventLog.FlushRaise(queue, entry);
if (entry.IsLocal)
{
var source = entry.GetSourceEvent();
var local = EventFactory.GetLocalEvent(entry, args, true);
RaiseLocalEvent(entry, local, source);
}
else
{
var identity = queue.GetIdentity();
RaiseRemoteEvent(entry, identity, args);
}
}
EventQueue.Update(queue);
isRunning = queue.IsRunning;
isSucceeded = queue.IsSucceeded;
}, true);
}
bool completed = false;
DomainEvent @event = null;
if (isSucceeded)
{
DataContext.NewScope(() =>
{
var queue = EventQueue.Find(queueId);
if (queue.IsSubqueue)
{
var entry = queue.Source;
var argsCode = entry.ArgsCode;
var identity = queue.GetIdentity();
var eventName = entry.EventName;
var eventId = entry.EventId;
callback.Mount(() => //挂载回调事件，这样所有操作执行完毕后，会发布事件被完成的消息
{
//发布事件被完成的消息
PublishRaiseSucceeded(identity, eventName, eventId, argsCode);
});
}
else
{
//不是被外界调用的，所以整个事件场景已完成
completed = true;
@event = queue.Source.GetSourceEvent();
}
}, true);
EventLog.FlushEnd(queueId); //指示恢复管理器事件队列的操作已经全部完成
}
if (completed)
{
callback.Mount(() => //挂载回调事件
{
DomainEvent.OnSucceeded(queueId, @event);
});
}
}