public async Task OnNext(Immutable <List <byte[]> > items)
{
var events = items.Value.Select(bytes =>
{
var(success, transport) = EventBytesTransport.FromBytesWithNoId(bytes);
if (success)
{
var eventType = TypeContainer.GetType(transport.EventTypeCode);
var data = Serializer.Deserialize(transport.EventBytes, eventType);
if (data is IEvent @event)
{
var eventBase = EventBase.FromBytes(transport.BaseBytes);
if (eventBase.Version > Snapshot.Base.Version)
{
return(new FullyEvent <PrimaryKey>
{
StateId = GrainId,
Base = eventBase,
Event = @event
});
}
}
else
{
if (Logger.IsEnabled(LogLevel.Trace))
{
Logger.LogTrace("Non-Event: {0}->{1}->{2}", GrainType.FullName, GrainId.ToString(), Serializer.Serialize(data, eventType));
}
}
}
return(default);
public ObserverUnit <PrimaryKey> UnreliableObserver(string group, Func <IServiceProvider, IFullyEvent <PrimaryKey>, ValueTask> handler)
{
var funcs = GetEventHandlers(group);
funcs.Add(func);
eventHandlers.Add(func);
return(this);
//内部函数
Task func(byte[] bytes)
{
var(success, transport) = EventBytesTransport.FromBytes <PrimaryKey>(bytes);
if (success)
{
var data = serializer.Deserialize(TypeContainer.GetType(transport.EventTypeCode), transport.EventBytes);
if (data is IEvent @event && transport.GrainId is PrimaryKey actorId)
{
var eventBase = EventBase.FromBytes(transport.BaseBytes);
var tellTask = handler(serviceProvider, new FullyEvent <PrimaryKey>
{
StateId = actorId,
Base = eventBase,
Event = @event
});
if (!tellTask.IsCompletedSuccessfully)
{
return(tellTask.AsTask());
}
}
}
return(Task.CompletedTask);
}
}
public Task Tell(byte[] bytes)
{
var(success, transport) = EventBytesTransport.FromBytesWithNoId(bytes);
if (success)
{
var eventType = TypeContainer.GetType(transport.EventType);
var data = Serializer.Deserialize(eventType, transport.EventBytes);
if (data is IEvent @event)
{
var eventBase = EventBase.FromBytes(transport.BaseBytes);
if (eventBase.Version > Snapshot.Base.Version)
{
var tellTask = Tell(new FullyEvent <PrimaryKey>
{
StateId = GrainId,
Base = eventBase,
Event = @event
});
if (!tellTask.IsCompletedSuccessfully)
{
return(tellTask.AsTask());
}
}
}
else
{
if (Logger.IsEnabled(LogLevel.Information))
{
Logger.LogInformation("Receive non-event messages, grain Id = {0} ,message type = {1}", GrainId.ToString(), transport.EventType);
}
}
}
return(Task.CompletedTask);
}
public Task OnNext(Immutable <byte[]> bytes)
{
var(success, transport) = EventBytesTransport.FromBytesWithNoId(bytes.Value);
if (success)
{
var eventType = TypeContainer.GetType(transport.EventTypeCode);
var data = Serializer.Deserialize(transport.EventBytes, eventType);
if (data is IEvent @event)
{
var eventBase = EventBase.FromBytes(transport.BaseBytes);
if (eventBase.Version > Snapshot.Base.Version)
{
var tellTask = Tell(new FullyEvent <PrimaryKey>
{
StateId = GrainId,
Base = eventBase,
Event = @event
});
if (!tellTask.IsCompletedSuccessfully)
{
return(tellTask.AsTask());
}
}
}
else
{
if (Logger.IsEnabled(LogLevel.Information))
{
Logger.LogInformation("Non-event messages:{0}({1})", eventType, Serializer.Serialize(data));
}
}
}
return(Task.CompletedTask);
}
public async Task OnNext(Immutable <byte[]> bytes)
{
var(success, transport) = EventBytesTransport.FromBytesWithNoId(bytes.Value);
if (success)
{
var data = Serializer.Deserialize(TypeContainer.GetType(transport.EventTypeCode), transport.EventBytes);
if (data is IEvent @event)
{
var eventBase = EventBase.FromBytes(transport.BaseBytes);
if (eventBase.Version > Snapshot.Version)
{
if (concurrent)
{
var input = new AsyncInputEvent <IFullyEvent <PrimaryKey>, bool>(new FullyEvent <PrimaryKey>
{
StateId = GrainId,
Base = eventBase,
Event = @event
});
var writeTask = ConcurrentChannel.WriteAsync(input);
if (!writeTask.IsCompletedSuccessfully)
{
await writeTask;
}
if (!writeTask.Result)
{
var ex = new ChannelUnavailabilityException(GrainId.ToString(), GrainType);
Logger.LogError(ex, ex.Message);
throw ex;
}
await input.TaskSource.Task;
}
else
{
var tellTask = Tell(new FullyEvent <PrimaryKey>
{
StateId = GrainId,
Base = eventBase,
Event = @event
});
if (!tellTask.IsCompletedSuccessfully)
{
await tellTask;
}
}
}
}
else
{
if (Logger.IsEnabled(LogLevel.Information))
{
Logger.LogInformation("Receive non-event messages, grain Id = {0} ,message type = {1}", GrainId.ToString(), transport.EventTypeCode);
}
}
}
}
/// <summary>
/// 防止对象在State和BackupState中互相干扰，所以反序列化一个全新的Event对象给BackupState
/// </summary>
/// <param name="fullyEvent">事件本体</param>
/// <param name="bytes">事件序列化之后的二进制数据</param>
protected override ValueTask OnRaiseSuccessed(IFullyEvent <PrimaryKey> fullyEvent, EventBytesTransport bytesTransport)
{
var copiedEvent = new FullyEvent <PrimaryKey>
{
Event = Serializer.Deserialize(fullyEvent.Event.GetType(), bytesTransport.EventBytes) as IEvent,
Base = EventBase.FromBytes(bytesTransport.BaseBytes)
};
EventHandler.Apply(BackupSnapshot, copiedEvent);
BackupSnapshot.Base.FullUpdateVersion(copiedEvent.Base, GrainType);//更新处理完成的Version
//父级涉及状态归档
return(base.OnRaiseSuccessed(fullyEvent, bytesTransport));
}
public async Task ConcurrentTell(byte[] bytes)
{
var(success, transport) = EventBytesTransport.FromBytesWithNoId(bytes);
if (success)
{
var data = Serializer.Deserialize(TypeContainer.GetType(transport.EventType), transport.EventBytes);
if (data is IEvent @event)
{
var eventBase = EventBase.FromBytes(transport.BaseBytes);
if (eventBase.Version > Snapshot.Version)
{
var writeTask = ConcurrentChannel.WriteAsync(new DataAsyncWrapper <IFullyEvent <PrimaryKey>, bool>(new FullyEvent <PrimaryKey>
{
StateId = GrainId,
Base = eventBase,
Event = @event
}));
if (!writeTask.IsCompletedSuccessfully)
{
await writeTask;
}
if (!writeTask.Result)
{
var ex = new ChannelUnavailabilityException(GrainId.ToString(), GrainType);
if (Logger.IsEnabled(LogLevel.Error))
{
Logger.LogError(LogEventIds.TransactionGrainCurrentInput, ex, ex.Message);
}
throw ex;
}
}
}
else
{
if (Logger.IsEnabled(LogLevel.Information))
{
Logger.LogInformation(LogEventIds.FollowEventProcessing, "Receive non-event messages, grain Id = {0} ,message type = {1}", GrainId.ToString(), transport.EventType);
}
}
}
}
public Task OnNext(Immutable <byte[]> bytes)
{
var(success, transport) = EventBytesTransport.FromBytesWithNoId(bytes.Value);
if (success)
{
var eventType = TypeContainer.GetType(transport.EventTypeCode);
var data = Serializer.Deserialize(transport.EventBytes, eventType);
if (data is IEvent @event)
{
var eventBase = EventBase.FromBytes(transport.BaseBytes);
if (eventBase.Version > Snapshot.Base.Version)
{
var tellTask = Tell(new FullyEvent <PrimaryKey>
{
StateId = GrainId,
Base = eventBase,
Event = @event
});
if (!tellTask.IsCompletedSuccessfully)
{
return(tellTask.AsTask());
}
}
if (Logger.IsEnabled(LogLevel.Trace))
{
Logger.LogTrace("OnNext completed: {0}->{1}->{2}", GrainType.FullName, GrainId.ToString(), Serializer.Serialize(data, eventType));
}
}
else
{
if (Logger.IsEnabled(LogLevel.Trace))
{
Logger.LogTrace("Non-Event: {0}->{1}->{2}", GrainType.FullName, GrainId.ToString(), Serializer.Serialize(data, eventType));
}
}
}
return(Task.CompletedTask);
}
public ObserverUnit <PrimaryKey> UnreliableObserver(
string group,
Func <IServiceProvider,
FullyEvent <PrimaryKey>, ValueTask> handler)
{
GetEventHandlers(group).Add(EventHandler);
GetBatchEventHandlers(group).Add(BatchEventHandler);
eventHandlers.Add(EventHandler);
batchEventHandlers.Add(BatchEventHandler);
return(this);
//内部函数
Task EventHandler(byte[] bytes)
{
var(success, transport) = EventBytesTransport.FromBytes <PrimaryKey>(bytes);
if (success)
{
var data = serializer.Deserialize(transport.EventBytes, typeFinder.FindType(transport.EventTypeCode));
if (data is IEvent @event && transport.GrainId is PrimaryKey actorId)
{
var eventBase = EventBase.FromBytes(transport.BaseBytes);
var tellTask = handler(serviceProvider, new FullyEvent <PrimaryKey>
{
StateId = actorId,
Base = eventBase,
Event = @event
});
if (!tellTask.IsCompletedSuccessfully)
{
return(tellTask.AsTask());
}
}
}
return(Task.CompletedTask);
}
Task BatchEventHandler(List <byte[]> list)
{
var groups =
list.Select(b => EventBytesTransport.FromBytes <PrimaryKey>(b))
.Where(o => o.success)
.Select(o => o.transport)
.GroupBy(o => o.GrainId);
return(Task.WhenAll(groups.Select(async kv =>
{
foreach (var transport in kv)
{
var data = serializer.Deserialize(transport.EventBytes, typeFinder.FindType(transport.EventTypeCode));
if (data is IEvent @event && transport.GrainId is PrimaryKey actorId)
{
var eventBase = EventBase.FromBytes(transport.BaseBytes);
var tellTask = handler(serviceProvider, new FullyEvent <PrimaryKey>
{
StateId = actorId,
Base = eventBase,
Event = @event
});
if (!tellTask.IsCompletedSuccessfully)
{
await tellTask;
}
}
}
})));
}
}
