public async Task Stop()
{
LogContext.SetCurrentIfNull(_context.LogContext);
try
{
_cancellationTokenSource.Cancel();
await _consumerTask.ConfigureAwait(false);
await _executor.DisposeAsync().ConfigureAwait(false);
_consumer.Close();
_consumer.Dispose();
_cancellationTokenSource.Dispose();
}
catch (Exception e)
{
LogContext.Error?.Log(e, "Error occured while stopping kafka topic: '{topicName}' listener", _topic);
}
finally
{
var metrics = _transport.GetMetrics();
var completedEvent = new ReceiveTransportCompletedEvent(_context.InputAddress, metrics);
await _context.TransportObservers.Completed(completedEvent).ConfigureAwait(false);
await _context.EndpointObservers.Completed(new ReceiveEndpointCompletedEvent(completedEvent, this)).ConfigureAwait(false);
LogContext.Debug?.Log("Kafka consumer completed {InputAddress}: {DeliveryCount} received, {ConcurrentDeliveryCount} concurrent",
_context.InputAddress, metrics.DeliveryCount, metrics.ConcurrentDeliveryCount);
}
}
public async Task Disconnect(CancellationToken cancellationToken)
{
LogContext.SetCurrentIfNull(_context.LogContext);
try
{
_cancellationTokenSource.Cancel();
await _executor.DisposeAsync().ConfigureAwait(false);
await _processor.StopProcessingAsync(cancellationToken).ConfigureAwait(false);
_cancellationTokenSource.Dispose();
}
catch (Exception e)
{
LogContext.Error?.Log(e, "Error occured while stopping EventHub processor: '{EventHubName}' listener", _processor.EventHubName);
}
finally
{
var metrics = _transport.GetMetrics();
var completedEvent = new ReceiveTransportCompletedEvent(_context.InputAddress, metrics);
await _context.TransportObservers.Completed(completedEvent).ConfigureAwait(false);
await _context.EndpointObservers.Completed(new ReceiveEndpointCompletedEvent(completedEvent, this)).ConfigureAwait(false);
LogContext.Debug?.Log("EventHub processor completed {InputAddress}: {DeliveryCount} received, {ConcurrentDeliveryCount} concurrent",
_context.InputAddress, metrics.DeliveryCount, metrics.ConcurrentDeliveryCount);
}
}
async Task ReceiveTransportHandle.Stop(CancellationToken cancellationToken)
{
await _transport.Stop("Stop", cancellationToken).ConfigureAwait(false);
var completed = new ReceiveTransportCompletedEvent(_transport._inputAddress, _transport._tracker.GetDeliveryMetrics());
await _transport._receiveEndpointContext.TransportObservers.Completed(completed).ConfigureAwait(false);
}
async Task ReceiveTransportHandle.Stop(CancellationToken cancellationToken)
{
LogContext.SetCurrentIfNull(_transport._context.LogContext);
await _transport.Stop("Stop", cancellationToken).ConfigureAwait(false);
_consumerHandle.Disconnect();
var completed = new ReceiveTransportCompletedEvent(_transport._inputAddress, _transport._dispatcher.GetDeliveryMetrics());
await _transport._context.TransportObservers.Completed(completed).ConfigureAwait(false);
}
protected override async Task StopAgent(StopContext context)
{
LogContext.SetCurrentIfNull(_context.LogContext);
var metrics = _dispatcher.GetMetrics();
var completed = new ReceiveTransportCompletedEvent(_context.InputAddress, metrics);
await _context.TransportObservers.Completed(completed).ConfigureAwait(false);
LogContext.Debug?.Log("Consumer completed {InputAddress}: {DeliveryCount} received, {ConcurrentDeliveryCount} concurrent",
_context.InputAddress, metrics.DeliveryCount, metrics.ConcurrentDeliveryCount);
_consumerHandle.Disconnect();
await base.StopAgent(context).ConfigureAwait(false);
}
async Task ReceiveTransportHandle.Stop(CancellationToken cancellationToken)
{
LogContext.SetCurrentIfNull(_transport._context.LogContext);
await _transport.Stop("Stop", cancellationToken).ConfigureAwait(false);
_consumerHandle.Disconnect();
var metrics = _transport._dispatcher.GetMetrics();
var completed = new ReceiveTransportCompletedEvent(_transport._inputAddress, metrics);
await _transport._context.TransportObservers.Completed(completed).ConfigureAwait(false);
LogContext.Debug?.Log("Consumer completed {InputAddress}: {DeliveryCount} received, {ConcurrentDeliveryCount} concurrent",
_transport._inputAddress, metrics.DeliveryCount, metrics.ConcurrentDeliveryCount);
}
