private void Subscribe(RabbitMqEventConsumerFactory eventConsumerFactory)
{
string toCamel(string s) => Char.ToLower(s[0]) + s.Substring(1);
string messageName = toCamel(eventConsumerFactory.MessageName);
Func <IEventConsumer> factory = eventConsumerFactory.FactoryFunc;
_logger.LogDebug("Initializing subscriber: {s}", messageName);
var subscription = _bus.Subscribe(typeof(IAppEvent <Event>), messageName,
o =>
{
_logger.LogDebug("Received message from MQ: {name}", messageName);
factory
.Invoke()
.Dispatch(o);
},
configuration =>
{
configuration.WithTopic(messageName);
configuration.WithQueueName(messageName);
});
_subscriptions.Add(subscription);
}
internal void InitSubscribers(string assemblyName, IImplProvider implProvider)
{
SetupErrorQueueSubscribtion();
var eventConsumerTypes = Assembly.Load(assemblyName)
.GetTypes()
.Where(type =>
type.BaseType != null && type.BaseType.IsGenericType &&
type.BaseType.GetGenericTypeDefinition() == typeof(EventConsumer <>))
.ToArray();
_logger.LogDebug("Found EventConsumers {list} in assembly: {assemblyName}", eventConsumerTypes.Select(f => f.Name).ToArray(), assemblyName);
foreach (var consumerType in eventConsumerTypes)
{
var evType = consumerType.BaseType.GetGenericArguments()[0];
var factory = new RabbitMqEventConsumerFactory(() => (IEventConsumer)implProvider.Get(consumerType),
evType.Name);
Subscribe(factory);
}
}