// For each message handler identified as being associated with an exchange/queue, create the
// exchange and queue then bind it to the in-process handler.
private async Task SubscribeToQueues(IBusModule busModule, IEnumerable <MessageQueueSubscriber> subscribers)
{
// Tacks the RPC queue that have been already bound. For a given named RPC queue, we only
// want to bind once since the command action namespace is used to determine the actual
// handler to be called (multiple commands are sent on a single queue).
HashSet <string> boundToRpcQueues = new HashSet <string>();
foreach (var subscriber in subscribers)
{
busModule.ApplyQueueSettings(subscriber.QueueMeta);
if (subscriber.QueueMeta.Exchange.IsRpcExchange &&
boundToRpcQueues.Contains(subscriber.QueueMeta.QueueName))
{
continue;
}
var bus = busModule.GetBus(subscriber.QueueMeta.Exchange.BusName);
IQueue queue = await QueueDeclareAsync(bus, subscriber.QueueMeta);
ConsumeMessageQueue(bus, queue, subscriber);
if (subscriber.QueueMeta.Exchange.IsRpcExchange)
{
boundToRpcQueues.Add(queue.Name);
}
}
}
public RabbitMqPublisher(ILoggerFactory loggerFactory,
IBusModule busModule,
IPublisherModule publisherModule,
ISerializationManager serializationManager,
IEntityScriptingService scripting)
{
Logger = loggerFactory.CreateLogger <RabbitMqPublisher>();
BusModule = busModule ?? throw new ArgumentNullException(nameof(busModule));
PublisherModule = publisherModule ?? throw new ArgumentNullException(nameof(publisherModule));
Serialization = serializationManager ?? throw new ArgumentNullException(nameof(serializationManager));
Scripting = scripting ?? throw new ArgumentNullException(nameof(scripting));
}
