/// <summary>
/// Starts the event horizon.
/// </summary>
/// <returns>A <see cref="Task"/> representing the asynchronous operation.</returns>
public async Task Start()
{
try
{
var tasks = new TaskGroup(
_dispatcher.Accept(new SubscriptionResponse {
ConsentId = Consent.ToProtobuf()
}, _cancellationTokenSource.Token),
ProcessEventsThroughEventHorizon());
tasks.OnFirstTaskFailure += (_, ex) => Log.ErrorOccurredInEventHorizon(
_logger,
ex,
Id.ConsumerMicroservice,
Id.ConsumerTenant,
Id.ProducerTenant,
Id.Partition,
Id.PublicStream);;
tasks.OnAllTasksCompleted += () => Log.EventHorizonStopped(
_logger,
Id.ConsumerMicroservice,
Id.ConsumerTenant,
Id.ProducerTenant,
Id.Partition,
Id.PublicStream);
await tasks.WaitForAllCancellingOnFirst(_cancellationTokenSource).ConfigureAwait(false);
}
finally
{
Log.EventHorizonDisconnecting(
_logger,
Id.ConsumerMicroservice,
Id.ConsumerTenant,
Id.ProducerTenant,
Id.Partition,
Id.PublicStream);
}
}