public void SaveAggregateRoot <TAggregateRoot>(TAggregateRoot aggregate)
where TAggregateRoot : IAggregateRoot
{
if (aggregate.GetUncommittedChanges().Any())
{
//在锁内程序执行过程中，会有多次对该聚合根的更改请求
lock (Lock)
{
//如果不是新增事件
if (aggregate.Version != -1)
{
var lastestEvent = eventStorage.GetLastEvent(((dynamic)aggregate).AggregateId);
if (lastestEvent != null && lastestEvent.Version != aggregate.Version)
{
throw new Exception("事件库中该聚合的状态版本与当前传入聚合状态版本不同，可能已被更新");
}
}
//保存到事件存储
eventStorage.SaveAggregateRoot(aggregate);
foreach (var @event in aggregate.GetUncommittedChanges())
{
eventBus.Publish(@event);
}
}
aggregate.MarkChangesAsCommitted();
}
}