public void OnResourceClosed()

in src/NMS.AMQP/NmsConnection.cs [360:391]
28 lines of code
9 McCabe index (conditional complexity)

        public void OnResourceClosed(INmsResource resource, Exception error)
        {
            switch (resource)
            {
                case NmsConsumerInfo consumerInfo:
                {
                    if (!sessions.TryGetValue(consumerInfo.SessionId, out NmsSession session))
                        return;

                    NmsMessageConsumer messageConsumer = session.ConsumerClosed(consumerInfo.Id, error);
                    if (messageConsumer == null)
                        return;
                    foreach (var connectionListener in connectionListeners)
                        connectionListener.OnConsumerClosed(messageConsumer, error);
                    break;
                }

                case NmsProducerInfo producerInfo:
                {
                    if (!sessions.TryGetValue(producerInfo.SessionId, out NmsSession session))
                        return;

                    NmsMessageProducer messageProducer = session.ProducerClosed(producerInfo.Id, error);
                    if (messageProducer == null)
                        return;

                    foreach (var connectionListener in connectionListeners)
                        connectionListener.OnProducerClosed(messageProducer, error);
                    break;
                }
            }
        }