public ServiceBusMessengerImpl(string connectionString, string[] addresses, int[] addressListenerCount, IApplicationLifetime applicationLifetime, IAMQPMessageProcessor messageProcessor)
{
_connectionString = connectionString;
_addresses = addresses;
_addressListenerCounts = addressListenerCount;
_cancellationTokenSource = new CancellationTokenSource();
_cancellationToken = _cancellationTokenSource.Token;
_messageProcessor = messageProcessor;
applicationLifetime.ApplicationStopping.Register(OnShutdown);
}
public AMQP10MessengerImpl(string connectionString, string[] addresses, int[] addressListenerCount, IHostApplicationLifetime applicationLifetime, IAMQPMessageProcessor messageProcessor, ILogger <AMQP10MessengerImpl> logger)
{
_connectionString = connectionString;
_addresses = addresses;
_addressListenerCounts = addressListenerCount;
_connectionFactory = new ConnectionFactory();
_cancellationTokenSource = new CancellationTokenSource();
_cancellationToken = _cancellationTokenSource.Token;
_messageProcessor = messageProcessor;
_logger = logger;
applicationLifetime.ApplicationStopping.Register(OnShutdown);
}
public static IServiceCollection AddAmqp(this IServiceCollection services, IConfiguration configuration)
{
Console.WriteLine("Initializing AMQP...");
string implementation = configuration["Amqp:Implementation"];
if (string.IsNullOrEmpty(implementation))
{
throw new Exception("AMQP implementation specification is empty");
}
bool useServiceBus = string.Equals(implementation, "ServiceBus");
string connectionString = configuration["Amqp:ConnectionString"];
if (string.IsNullOrEmpty(connectionString))
{
throw new Exception("AMQP connection string is empty");
}
string addresses = configuration["Amqp:Addresses"];
if (string.IsNullOrEmpty(addresses))
{
throw new Exception("AMQP addresses are missing");
}
string[] addressesSplit = addresses.Split(new[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
if (addressesSplit.Length == 0)
{
throw new Exception("AMQP addresses are empty");
}
int[] amqpListenerCounts = new int[addressesSplit.Length];
for (int i = 0; i < addressesSplit.Length; i++)
{
int?amqpListenerCount = configuration.GetValue <int?>($"Amqp:AddressDetails:{addressesSplit[i]}:ListenerCount");
if (amqpListenerCount == null)
{
throw new Exception($"AMQP listener count for address {addressesSplit[i]} is not defined");
}
amqpListenerCounts[i] = (int)amqpListenerCount;
}
services.AddSingleton(factory =>
{
IAMQPMessageProcessor messageProcessor = factory.GetRequiredService <IAMQPMessageProcessor>();
IAMQPMessenger amqpMessenger;
if (useServiceBus)
{
// Service Bus
amqpMessenger = new ServiceBusMessengerImpl(connectionString, addressesSplit, amqpListenerCounts, factory.GetRequiredService <IApplicationLifetime>(), messageProcessor);
}
else
{
// AMQP 1.0
amqpMessenger = new AMQP10MessengerImpl(connectionString, addressesSplit, amqpListenerCounts, factory.GetRequiredService <IApplicationLifetime>(), messageProcessor);
}
amqpMessenger.InitializeAsync().Wait();
return(amqpMessenger);
});
Console.WriteLine("AMQP initialized successfully");
return(services);
}
