public virtual AggregateRoot RestoreFromSnapshot(Snapshot snapshot)
{
if (snapshot == null || !snapshot.IsValid())
{
return(null);
}
var aggregateRoot = _aggregateRootFactory.CreateAggregateRoot(snapshot.AggregateRootType);
if (!IsSnapshotable(aggregateRoot))
{
throw new InvalidOperationException(string.Format("聚合根({0})没有实现ISnapshotable接口或者实现了多余1个的ISnapshotable接口，不能将其从某个快照还原。", aggregateRoot.GetType().FullName));
}
if (GetSnapshotDataType(aggregateRoot) != snapshot.Data.GetType())
{
throw new InvalidOperationException(string.Format("当前聚合根的快照类型({0})与要还原的快照类型({1})不符", GetSnapshotDataType(aggregateRoot), snapshot.Data.GetType()));
}
aggregateRoot.InitializeFromSnapshot(snapshot);
SnapshotterHelper.RestoreFromSnapshot(snapshot.Data, aggregateRoot);
return(aggregateRoot);
}
/// <summary>
/// 从给定的快照还原聚合根
/// </summary>
public virtual AggregateRoot RestoreFromSnapshot(Snapshot snapshot)
{
if (snapshot == null || !snapshot.IsValid())
{
return(null);
}
AggregateRoot aggregateRoot = _aggregateRootFactory.CreateAggregateRoot(snapshot.AggregateRootType);
if (!IsSnapshotable(aggregateRoot))
{
throw new InvalidOperationException(string.Format("聚合根({0})没有实现ISnapshotable接口或者实现了多余1个的ISnapshotable接口，不能将其从某个快照还原。", aggregateRoot.GetType().FullName));
}
if (GetSnapshotType(aggregateRoot) != snapshot.Data.GetType())
{
throw new InvalidOperationException(string.Format("当前聚合根的快照类型({0})与要还原的快照类型({1})不符", GetSnapshotType(aggregateRoot), snapshot.Data.GetType()));
}
aggregateRoot.InitializeFromSnapshot(snapshot);
var internalSnapshotterType = typeof(InternalSnapshotter <>).MakeGenericType(snapshot.Data.GetType());
internalSnapshotterType.GetMethod("RestoreFromSnapshot").Invoke(Activator.CreateInstance(internalSnapshotterType), new object[] { aggregateRoot, snapshot.Data });
return(aggregateRoot);
}
