protected async ValueTask SaveSnapshotAsync(bool force = false, bool isLatest = false)
{
if (Snapshot.Base.Version != Snapshot.Base.DoingVersion)
{
throw new StateInsecurityException(Snapshot.Base.StateId.ToString(), GrainType, Snapshot.Base.DoingVersion, Snapshot.Base.Version);
}
if (Logger.IsEnabled(LogLevel.Trace))
{
Logger.LogTrace(LogEventIds.GrainSnapshot, "Start save snapshot with Id = {0} ,state version = {1}", GrainId.ToString(), Snapshot.Base.Version);
}
//如果版本号差超过设置则更新快照
if (force || (Snapshot.Base.Version - SnapshotEventVersion >= CoreOptions.SnapshotIntervalVersion))
{
var oldLatestMinEventTimestamp = Snapshot.Base.LatestMinEventTimestamp;
try
{
var onSaveSnapshotTask = OnStartSaveSnapshot();
if (!onSaveSnapshotTask.IsCompletedSuccessfully)
{
await onSaveSnapshotTask;
}
Snapshot.Base.LatestMinEventTimestamp = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
Snapshot.Base.IsLatest = isLatest;
if (SnapshotEventVersion == 0)
{
await SnapshotStorage.Insert(Snapshot);
}
else
{
await SnapshotStorage.Update(Snapshot);
}
SnapshotEventVersion = Snapshot.Base.Version;
if (Logger.IsEnabled(LogLevel.Trace))
{
Logger.LogTrace(LogEventIds.GrainSnapshot, "The snapshot of id={0} save completed ,state version = {1}", GrainId.ToString(), Snapshot.Base.Version);
}
}
catch (Exception ex)
{
Snapshot.Base.LatestMinEventTimestamp = oldLatestMinEventTimestamp;
if (Logger.IsEnabled(LogLevel.Critical))
{
Logger.LogCritical(LogEventIds.GrainSnapshot, ex, "The snapshot of id= {0} save failed", GrainId.ToString());
}
throw;
}
}
}
protected async ValueTask SaveSnapshotAsync(bool force = false, bool isLatest = false)
{
if (Snapshot.Base.Version != Snapshot.Base.DoingVersion)
{
throw new StateInsecurityException(Snapshot.Base.StateId.ToString(), GrainType, Snapshot.Base.DoingVersion, Snapshot.Base.Version);
}
//如果版本号差超过设置则更新快照
if ((force && Snapshot.Base.Version > SnapshotEventVersion) ||
(Snapshot.Base.Version - SnapshotEventVersion >= CoreOptions.SnapshotVersionInterval))
{
var oldLatestMinEventTimestamp = Snapshot.Base.LatestMinEventTimestamp;
try
{
var onSaveSnapshotTask = OnStartSaveSnapshot();
if (!onSaveSnapshotTask.IsCompletedSuccessfully)
{
await onSaveSnapshotTask;
}
Snapshot.Base.LatestMinEventTimestamp = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
Snapshot.Base.IsLatest = isLatest;
if (SnapshotEventVersion == 0)
{
await SnapshotStorage.Insert(Snapshot);
}
else
{
await SnapshotStorage.Update(Snapshot);
}
SnapshotEventVersion = Snapshot.Base.Version;
if (Logger.IsEnabled(LogLevel.Trace))
{
Logger.LogTrace("SaveSnapshot completed: {0}->{1}", GrainType.FullName, Serializer.Serialize(Snapshot));
}
}
catch (Exception ex)
{
Snapshot.Base.LatestMinEventTimestamp = oldLatestMinEventTimestamp;
Logger.LogCritical(ex, "SaveSnapshot failed: {0}->{1}", GrainType.FullName, GrainId.ToString());
throw;
}
}
}