/// <summary>
/// Activate Grain
/// </summary>
/// <returns></returns>
public override async Task OnActivateAsync()
{
try
{
this._eventBufferBlock = new DataflowBufferBlock <EventTransactionModel <TStateKey> >(this.TriggerEventStorage);
this._internalConfiguration = this.ServiceProvider.GetRequiredService <IInternalConfiguration>();
this._mqPublisher = this.ServiceProvider.GetRequiredService <IMQPublisher>();
this._eventSourcing = await this.ServiceProvider.GetEventSourcing <TState, TStateKey>(this).Init(this.StateId);
this.State = await this._eventSourcing.ReadSnapshotAsync();
this.PublishOptions = this._internalConfiguration.GetEventPublishOptions(this);
await base.OnActivateAsync();
}
catch (Exception ex)
{
this.Logger.LogError(ex, $"{StateId} Activate Grain failure");
throw ex;
}
}
public async Task <IEventSourcing <TState, TStateKey> > Init(TStateKey stateKey)
{
this.StateId = stateKey;
this._storageFactory = new StorageFactory(this._serviceProvider, this.Options.StorageOptions);
this._eventStorage = await this._storageFactory.GetEventStorage(this.Options.EventSourceName, this.StateId.ToString());
string bufferKey = "es" + this.Options.EventSourceName + this.Options.StorageOptions.StorageProvider;
this._eventBufferBlock = this._serviceProvider.GetRequiredService <IDataflowBufferBlockFactory>().Create <EventStorageModel>(bufferKey, this.LazySaveAsync);
//Get snapshot storage information
if (this.Options.SnapshotOptions.SnapshotType != SnapshotType.NoSnapshot)
{
IStorageFactory snapshotStorageFactory = new StorageFactory(this._serviceProvider, this.Options.SnapshotOptions);
this._snapshotStorage = await snapshotStorageFactory.GetStateStorage(this.Options.EventSourceName, StorageType.EventSourceSnapshot, this.StateId.ToString());
this.SnapshotTable = await snapshotStorageFactory.GetTable(this.Options.EventSourceName, StorageType.EventSourceSnapshot, this.StateId.ToString());
}
return(this);
}
public EventProcessCore(IServiceProvider serviceProvider, ILogger <EventProcessCore> logger)
{
this._serviceProvider = serviceProvider;
this._logger = logger;
this._eventBufferBlock = new DataflowBufferBlock <EventProccessBufferWrap>(this.TriggerEventProcessing);
}
