public RabbitEventBus(
IServiceProvider serviceProvider,
IRabbitEventBusContainer eventBusContainer,
string exchange, string routePrefix, int lBCount = 1, ushort minQos = 100, ushort incQos = 100, ushort maxQos = 300, bool autoAck = false, bool reenqueue = false)
{
if (string.IsNullOrEmpty(exchange))
{
throw new ArgumentNullException(nameof(exchange));
}
if (string.IsNullOrEmpty(routePrefix))
{
throw new ArgumentNullException(nameof(routePrefix));
}
if (lBCount < 1)
{
throw new ArgumentOutOfRangeException($"{nameof(lBCount)} must be greater than 1");
}
ServiceProvider = serviceProvider;
observerUnitContainer = serviceProvider.GetService <IObserverUnitContainer>();
Container = eventBusContainer;
Exchange = exchange;
RoutePrefix = routePrefix;
LBCount = lBCount;
DefaultConsumerConfig = new BranchOptions
{
AutoAck = autoAck,
MaxQos = maxQos,
MinQos = minQos,
IncQos = incQos,
Reenqueue = reenqueue
};
RouteList = new List <string>();
if (LBCount == 1)
{
RouteList.Add(routePrefix);
}
else
{
for (int i = 0; i < LBCount; i++)
{
RouteList.Add($"{routePrefix }_{ i.ToString()}");
}
}
_CHash = new ConsistentHash(RouteList, lBCount * 10);
}
public RabbitEventBus CreateConsumer <PrimaryKey>(string observerGroup, BranchOptions consumerConfig = default)
{
var consumer = new RabbitConsumer(observerUnitContainer.GetUnit <PrimaryKey>(ProducerType).GetEventHandlers(observerGroup))
{
EventBus = this,
QueueList = new List <QueueInfo>(),
Config = consumerConfig == null || consumerConfig.MinQos == 0 ? DefaultConsumerConfig : consumerConfig
};
foreach (var route in RouteList)
{
consumer.QueueList.Add(new QueueInfo {
RoutingKey = route, Queue = $"{route}_{observerGroup}"
});
}
Consumers.Add(consumer);
return(this);
}