/// <summary>
/// Defines a fanout exchange that will broadcast messages to all bound message queues.
/// This should be used for notification type messages where the subscriber only cares
/// about current occurring messages and not about prior missed messages that happened
/// when they were offline.
///
/// https://www.rabbitmq.com/tutorials/amqp-concepts.html#exchange-fanout
/// </summary>
/// <param name="name">The name of the exchange.</param>
/// <param name="busName">The bus name key used to lookup connection.</param>
/// <param name="settings">Optional delegate called allowing caller to set
/// additional exchange properties.</param>
/// <typeparam name="TMessage">The domain-event type associated with the exchange.</typeparam>
protected void DefineFanoutExchange <TMessage>(string name, string busName,
Action <ExchangeMeta <TMessage> > settings = null)
where TMessage : IDomainEvent
{
var exchange = ExchangeMeta.Define <TMessage>(busName, name, ExchangeType.Fanout,
config =>
{
config.IsAutoDelete = true;
config.IsDurable = false;
config.IsPersistent = false;
config.IsPassive = false;
});
_exchanges.Add(exchange);
settings?.Invoke(exchange);
}
public void CanSpecifyExchangeSettings_InConfiguration()
{
ContainerFixture.Test(fixture => {
fixture.Arrange
.Configuration(TestSetup.AddValidBusConfigWithExchangeSettings)
.Container(c =>
{
c.WithRabbitMqHost();
})
.Assert.PluginModule <MockBusModule>(m =>
{
var exchangeMeta = ExchangeMeta.Define("TestBus1", "TestExchangeName", ExchangeType.Direct);
m.ApplyExchangeSettings(exchangeMeta);
Assert.True(exchangeMeta.IsPassive);
Assert.Equal("TestAltExchangeName", exchangeMeta.AlternateExchangeName);
Assert.Equal("TestContentType", exchangeMeta.ContentType);
Assert.Equal(10000, exchangeMeta.CancelRpcRequestAfterMs);
});
});
}
public QueueMeta CreateQueueMeta(SubscriberQueueAttribute attribute)
{
var exchange = ExchangeMeta.Define(attribute.BusName, attribute.ExchangeName, ExchangeType.Fanout,
config =>
{
config.IsAutoDelete = true;
config.IsDurable = false;
config.IsPassive = false;
config.IsPersistent = false;
});
var queue = QueueMeta.Define(attribute.QueueName, exchange,
config =>
{
config.IsAutoDelete = true;
config.IsDurable = false;
config.IsPassive = false;
config.IsExclusive = true;
config.AppendUniqueId = true;
});
return(queue);
}
