public void Subscribe <T>(string name, Action <T> handler) where T : class
{
IMessageBus messageBus = new RabbitMQMessageBus(new RabbitMQMessageBusOptions {
ConnectionString = "amqp://192.168.180.128", Topic = "aaa", ExchangeName = name
});
messageBus.SubscribeAsync <T>(handler);
}
public static void Main(string[] args)
{
Console.WriteLine("Waiting to receive messages....");
IMessageBus messageBus = new RabbitMQMessageBus("amqp://localhost", "FoundatioQueue", "FoundatioExchange");
messageBus.SubscribeAsync <string>(msg => { Console.WriteLine(msg); }).GetAwaiter().GetResult();
Console.ReadLine();
}
public static async Task Main(string[] args)
{
Console.WriteLine("Waiting to receive messages, press enter to quit...");
var tasks = new List <Task>();
var messageBuses = new List <IMessageBus>();
for (int i = 0; i < 3; i++)
{
var messageBus = new RabbitMQMessageBus(new RabbitMQMessageBusOptions {
ConnectionString = "amqp://localhost:5672"
});
messageBuses.Add(messageBus);
tasks.Add(messageBus.SubscribeAsync <MyMessage>(msg => { Console.WriteLine($"Got subscriber {messageBus.MessageBusId} message: {msg.Hey}"); }));
}
await Task.WhenAll(tasks);
Console.ReadLine();
foreach (var messageBus in messageBuses)
{
messageBus.Dispose();
}
}
public async Task CanPersistAndNotLoseMessages()
{
Log.MinimumLevel = LogLevel.Trace;
var messageBus1 = new RabbitMQMessageBus(o => o
.ConnectionString("amqp://localhost:5673")
.LoggerFactory(Log)
.SubscriptionQueueName($"{_topic}-offline")
.IsSubscriptionQueueExclusive(false)
.SubscriptionQueueAutoDelete(false)
.AcknowledgementStrategy(AcknowledgementStrategy.Automatic));
var countdownEvent = new AsyncCountdownEvent(1);
var cts = new CancellationTokenSource();
await messageBus1.SubscribeAsync <SimpleMessageA>(msg => {
_logger.LogInformation("[Subscriber1] Got message: {Message}", msg.Data);
countdownEvent.Signal();
}, cts.Token);
await messageBus1.PublishAsync(new SimpleMessageA { Data = "Audit message 1" });
await countdownEvent.WaitAsync(TimeSpan.FromSeconds(5));
Assert.Equal(0, countdownEvent.CurrentCount);
cts.Cancel();
await messageBus1.PublishAsync(new SimpleMessageA { Data = "Audit message 2" });
cts = new CancellationTokenSource();
countdownEvent.AddCount(1);
await messageBus1.SubscribeAsync <SimpleMessageA>(msg => {
_logger.LogInformation("[Subscriber2] Got message: {Message}", msg.Data);
countdownEvent.Signal();
}, cts.Token);
await countdownEvent.WaitAsync(TimeSpan.FromSeconds(5));
Assert.Equal(0, countdownEvent.CurrentCount);
cts.Cancel();
await messageBus1.PublishAsync(new SimpleMessageA { Data = "Audit offline message 1" });
await messageBus1.PublishAsync(new SimpleMessageA { Data = "Audit offline message 2" });
await messageBus1.PublishAsync(new SimpleMessageA { Data = "Audit offline message 3" });
messageBus1.Dispose();
var messageBus2 = new RabbitMQMessageBus(o => o
.ConnectionString("amqp://localhost:5673")
.LoggerFactory(Log)
.SubscriptionQueueName($"{_topic}-offline")
.IsSubscriptionQueueExclusive(false)
.SubscriptionQueueAutoDelete(false)
.AcknowledgementStrategy(AcknowledgementStrategy.Automatic));
cts = new CancellationTokenSource();
countdownEvent.AddCount(4);
await messageBus2.SubscribeAsync <SimpleMessageA>(msg => {
_logger.LogInformation("[Subscriber3] Got message: {Message}", msg.Data);
countdownEvent.Signal();
}, cts.Token);
await messageBus2.PublishAsync(new SimpleMessageA { Data = "Another audit message 4" });
await countdownEvent.WaitAsync(TimeSpan.FromSeconds(5));
Assert.Equal(0, countdownEvent.CurrentCount);
messageBus2.Dispose();
}
