private IEventSourced Restore(Type sourceType, string sourceId)
{
IEventSourced eventSourced;
try
{
eventSourced = _snapshotStore.GetLatest(sourceType, sourceId) as IEventSourced;
if (!eventSourced.IsNull())
{
if (LogManager.Default.IsDebugEnabled)
{
LogManager.Default.DebugFormat(
"Find the aggregate root '{0}' of id '{1}' from snapshot. current version:{2}.",
sourceType.FullName, sourceId, eventSourced.Version);
}
}
}
catch (Exception ex)
{
LogManager.Default.Warn(ex,
"Get the latest snapshot failed. aggregateRootId:{0},aggregateRootType:{1}.",
sourceId, sourceType.FullName);
eventSourced = null;
}
var events = _eventStore.FindAll(new SourceInfo(sourceId, sourceType), eventSourced.Version);
if (!events.IsEmpty())
{
if (eventSourced.IsNull())
{
eventSourced = Create(sourceType, sourceId);
}
eventSourced.LoadFrom(events);
if (LogManager.Default.IsDebugEnabled)
{
LogManager.Default.DebugFormat(
"Restore the aggregate root '{0}' of id '{1}' from event stream. version:{2} ~ {3}",
sourceType.FullName,
sourceId,
events.Min(p => p.Version),
events.Max(p => p.Version));
}
}
return(eventSourced);
}