public static EventUID GetNextUID <PrimaryKey>(this FullyEvent <PrimaryKey> @event) { return(new EventUID(@event.GetEventId(), @event.Base.Timestamp)); }
protected virtual async Task <bool> RaiseEvent(IEvent @event, EventUID uniqueId = null) { if (Logger.IsEnabled(LogLevel.Trace)) { Logger.LogTrace("Start raise event, grain Id ={0} and state version = {1},event type = {2} ,event ={3},uniqueueId= {4}", GrainId.ToString(), Snapshot.Base.Version, @event.GetType().FullName, Serializer.SerializeToString(@event), uniqueId); } if (Snapshot.Base.IsOver) { throw new StateIsOverException(Snapshot.Base.StateId.ToString(), GrainType); } try { var fullyEvent = new FullyEvent <PrimaryKey> { Event = @event, Base = new EventBase { Version = Snapshot.Base.Version + 1 }, StateId = Snapshot.Base.StateId }; if (uniqueId == default) { uniqueId = EventUID.Empty; } if (string.IsNullOrEmpty(uniqueId.UID)) { fullyEvent.Base.Timestamp = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds(); } else { fullyEvent.Base.Timestamp = uniqueId.Timestamp; } var startTask = OnRaiseStart(fullyEvent); if (!startTask.IsCompletedSuccessfully) { await startTask; } Snapshot.Base.IncrementDoingVersion(GrainType);//标记将要处理的Version var bytesTransport = new EventBytesTransport( TypeContainer.GetTypeCode(@event.GetType()), Snapshot.Base.StateId, fullyEvent.Base.GetBytes(), Serializer.SerializeToBytes(@event) ); if (await EventStorage.Append(fullyEvent, in bytesTransport, uniqueId.UID)) { SnapshotHandler.Apply(Snapshot, fullyEvent); Snapshot.Base.UpdateVersion(fullyEvent.Base, GrainType);//更新处理完成的Version var task = OnRaiseSuccessed(fullyEvent, bytesTransport); if (!task.IsCompletedSuccessfully) { await task; } var saveSnapshotTask = SaveSnapshotAsync(); if (!saveSnapshotTask.IsCompletedSuccessfully) { await saveSnapshotTask; } await PublishToEventBust(bytesTransport); if (Logger.IsEnabled(LogLevel.Trace)) { Logger.LogTrace("Raise event successfully, grain Id= {0} and state version = {1}", GrainId.ToString(), Snapshot.Base.Version); } return(true); } else { Snapshot.Base.DecrementDoingVersion();//还原doing Version if (Logger.IsEnabled(LogLevel.Information)) { Logger.LogInformation("Raise event failure because of idempotency limitation, grain Id = {0},state version = {1},event type = {2} with version = {3}", GrainId.ToString(), Snapshot.Base.Version, @event.GetType().FullName, fullyEvent.Base.Version); } var task = OnRaiseFailed(fullyEvent); if (!task.IsCompletedSuccessfully) { await task; } } }
public static string GetEventId <PrimaryKey>(this FullyEvent <PrimaryKey> @event) { return($"{@event.StateId.ToString()}_{@event.Base.Version.ToString()}"); }
protected virtual async Task <bool> RaiseEvent(IEvent @event, EventUID eUID = null) { if (Snapshot.Base.IsOver) { throw new StateIsOverException(Snapshot.Base.StateId.ToString(), GrainType); } try { var fullyEvent = new FullyEvent <PrimaryKey> { Event = @event, Base = new EventBase { Version = Snapshot.Base.Version + 1 }, StateId = Snapshot.Base.StateId }; string unique = default; if (eUID is null) { fullyEvent.Base.Timestamp = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds(); unique = fullyEvent.GetEventId(); } else { fullyEvent.Base.Timestamp = eUID.Timestamp; unique = eUID.UID; } var startTask = OnRaiseStart(fullyEvent); if (!startTask.IsCompletedSuccessfully) { await startTask; } Snapshot.Base.IncrementDoingVersion(GrainType);//标记将要处理的Version var evtType = @event.GetType(); var bytesTransport = new EventBytesTransport( TypeFinder.GetCode(evtType), Snapshot.Base.StateId, fullyEvent.Base.GetBytes(), Serializer.SerializeToUtf8Bytes(@event, evtType) ); if (await EventStorage.Append(fullyEvent, in bytesTransport, unique)) { SnapshotHandler.Apply(Snapshot, fullyEvent); Snapshot.Base.UpdateVersion(fullyEvent.Base, GrainType);//更新处理完成的Version var task = OnRaised(fullyEvent, bytesTransport); if (!task.IsCompletedSuccessfully) { await task; } var saveSnapshotTask = SaveSnapshotAsync(); if (!saveSnapshotTask.IsCompletedSuccessfully) { await saveSnapshotTask; } await PublishToEventBus(bytesTransport.GetBytes(), GrainId.ToString()); if (Logger.IsEnabled(LogLevel.Trace)) { Logger.LogTrace("RaiseEvent completed: {0}->{1}->{2}", GrainType.FullName, Serializer.Serialize(fullyEvent), Serializer.Serialize(Snapshot)); } return(true); } else { if (Logger.IsEnabled(LogLevel.Trace)) { Logger.LogTrace("RaiseEvent failed: {0}->{1}->{2}", GrainType.FullName, Serializer.Serialize(fullyEvent), Serializer.Serialize(Snapshot)); } Snapshot.Base.DecrementDoingVersion();//还原doing Version var task = OnRaiseFailed(fullyEvent); if (!task.IsCompletedSuccessfully) { await task; } } }
public Task <bool> Append(FullyEvent <PrimaryKey> fullyEvent, in EventBytesTransport bytesTransport, string unique)
public virtual void CustomApply(Snapshot <PrimaryKey, Snapshot> snapshot, FullyEvent <PrimaryKey> fullyEvent) { base.Apply(snapshot, fullyEvent); }
protected virtual async Task <bool> RaiseEvent(IEvent @event, EventUID uniqueId = null) { if (Logger.IsEnabled(LogLevel.Trace)) { Logger.LogTrace("Start raise event, grain Id ={0} and state version = {1},event type = {2} ,event ={3},uniqueueId= {4}", GrainId.ToString(), Snapshot.Base.Version, @event.GetType().FullName, Serializer.SerializeToString(@event), uniqueId); } if (Snapshot.Base.IsOver) { throw new StateIsOverException(Snapshot.Base.StateId.ToString(), GrainType); } try { var fullyEvent = new FullyEvent <PrimaryKey> { Event = @event, Base = new EventBase { Version = Snapshot.Base.Version + 1 }, StateId = Snapshot.Base.StateId }; if (uniqueId == default) { uniqueId = EventUID.Empty; } if (string.IsNullOrEmpty(uniqueId.UID)) { fullyEvent.Base.Timestamp = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds(); } else { fullyEvent.Base.Timestamp = uniqueId.Timestamp; } var startTask = OnRaiseStart(fullyEvent); if (!startTask.IsCompletedSuccessfully) { await startTask; } Snapshot.Base.IncrementDoingVersion(GrainType);//标记将要处理的Version var bytesTransport = new EventBytesTransport { EventType = @event.GetType().FullName, GrainId = Snapshot.Base.StateId, EventBytes = Serializer.SerializeToBytes(@event), BaseBytes = fullyEvent.Base.GetBytes() }; if (await EventStorage.Append(fullyEvent, bytesTransport, uniqueId.UID)) { EventHandler.Apply(Snapshot, fullyEvent); Snapshot.Base.UpdateVersion(fullyEvent.Base, GrainType);//更新处理完成的Version var task = OnRaiseSuccessed(fullyEvent, bytesTransport); if (!task.IsCompletedSuccessfully) { await task; } var saveSnapshotTask = SaveSnapshotAsync(); if (!saveSnapshotTask.IsCompletedSuccessfully) { await saveSnapshotTask; } var handlers = FollowUnit.GetAllEventHandlers(); if (handlers.Count > 0) { try { if (CoreOptions.PriorityAsyncEventBus) { try { var publishTask = EventBusProducer.Publish(bytesTransport.GetBytes(), GrainId.ToString()); if (!publishTask.IsCompletedSuccessfully) { await publishTask; } } catch (Exception ex) { Logger.LogError(ex, "EventBus error,state Id ={0}, version ={1}", GrainId.ToString(), Snapshot.Base.Version); //当消息队列出现问题的时候同步推送 await Task.WhenAll(handlers.Select(func => func(bytesTransport.GetBytes()))); } } else { try { await Task.WhenAll(handlers.Select(func => func(bytesTransport.GetBytes()))); } catch (Exception ex) { Logger.LogError(ex, "EventBus error,state Id ={0}, version ={1}", GrainId.ToString(), Snapshot.Base.Version); //当消息队列出现问题的时候异步推送 var publishTask = EventBusProducer.Publish(bytesTransport.GetBytes(), GrainId.ToString()); if (!publishTask.IsCompletedSuccessfully) { await publishTask; } } } } catch (Exception ex) { Logger.LogError(ex, "EventBus error,state Id ={0}, version ={1}", GrainId.ToString(), Snapshot.Base.Version); } } if (Logger.IsEnabled(LogLevel.Trace)) { Logger.LogTrace("Raise event successfully, grain Id= {0} and state version = {1}}", GrainId.ToString(), Snapshot.Base.Version); } return(true); } else { if (Logger.IsEnabled(LogLevel.Information)) { Logger.LogInformation("Raise event failure because of idempotency limitation, grain Id = {0},state version = {1},event type = {2} with version = {3}", GrainId.ToString(), Snapshot.Base.Version, @event.GetType().FullName, fullyEvent.Base.Version); } var task = OnRaiseFailed(fullyEvent); if (!task.IsCompletedSuccessfully) { await task; } Snapshot.Base.DecrementDoingVersion();//还原doing Version } } catch (Exception ex) { if (Logger.IsEnabled(LogLevel.Error)) { Logger.LogError(ex, "Raise event produces errors, state Id = {0}, version ={1},event type = {2},event = {3}", GrainId.ToString(), Snapshot.Base.Version, @event.GetType().FullName, Serializer.SerializeToString(@event)); } await RecoverySnapshot();//还原状态 throw; } return(false); }