protected async override Task ExecuteAsync(CancellationToken stoppingToken)
{
while (!stoppingToken.IsCancellationRequested)
{
foreach (var eventLog in _eventSourcingDbContext.EventLogs.Where(_ => _.Status == 0).ToList())
{
var assembly = assemblies.FirstOrDefault(_ => _.GetName().Name == eventLog.AssemblyName);
if (assembly == null)
{
assembly = Assembly.Load(eventLog.AssemblyName);
assemblies.Add(assembly);
}
var type = types.FirstOrDefault(_ => _.FullName == eventLog.TypeName);
if (type == null)
{
type = assembly.GetType(eventLog.TypeName);
types.Add(type);
}
var json = Encoding.UTF8.GetString(eventLog.Content);
var obj = JsonConvert.DeserializeObject(json, type);
_eventBus.Publish(type, (EventBusMessage)obj);
_eventSourcingDbContext.Remove(eventLog);
await _eventSourcingDbContext.SaveChangesAsync(stoppingToken);
}
await Task.Delay(TimeSpan.FromSeconds(10), stoppingToken);
}
}
public async Task SaveEventLogAsync(EventBusMessage message, IDbContextTransaction transaction, CancellationToken cancellationToken = default(CancellationToken))
{
if (_eventSourcingDbContext.Database.CurrentTransaction == null ||
_eventSourcingDbContext.Database.CurrentTransaction.GetDbTransaction() != transaction.GetDbTransaction())
{
_eventSourcingDbContext.Database.UseTransaction(transaction.GetDbTransaction());
}
_eventSourcingDbContext.EventLogs.Add(new EventLog(message));
await _eventSourcingDbContext.SaveChangesAsync(cancellationToken);
}
public Task Handle(SaveChangesWhenAddedEventLogEvent notification, CancellationToken cancellationToken)
{
return(_eventSourcingDbContext.SaveChangesAsync(cancellationToken));
}