/// <summary>
/// Creates a new startable endpoint based on the provided configuration that uses an externally managed container implementing the Microsoft dependency injection abstraction.
/// </summary>
/// <param name="endpointConfiguration">The endpoint configuration.</param>
/// <param name="serviceCollection">Service collection.</param>
public static IStartableEndpointWithExternallyManagedContainer Create(EndpointConfiguration endpointConfiguration, IServiceCollection serviceCollection)
{
Guard.AgainstNull(nameof(endpointConfiguration), endpointConfiguration);
Guard.AgainstNull(nameof(serviceCollection), serviceCollection);
return(EndpointWithExternallyManagedContainer.Create(endpointConfiguration, new ServiceCollectionAdapter(serviceCollection)));
}
/// <summary>
/// Configures the host to start an NServiceBus endpoint.
/// </summary>
public static IHostBuilder UseNServiceBus(this IHostBuilder hostBuilder, Func <HostBuilderContext, EndpointConfiguration> endpointConfigurationBuilder)
{
var deferredLoggerFactory = new DeferredLoggerFactory();
LogManager.UseFactory(deferredLoggerFactory);
hostBuilder.ConfigureServices((ctx, serviceCollection) =>
{
if (ctx.Properties.ContainsKey(HostBuilderExtensionInUse))
{
throw new InvalidOperationException(
"`UseNServiceBus` can only be used once on the same host instance because subsequent calls would override each other. For multi-endpoint hosting scenarios consult our documentation page.");
}
ctx.Properties.Add(HostBuilderExtensionInUse, null);
var endpointConfiguration = endpointConfigurationBuilder(ctx);
var startableEndpoint = EndpointWithExternallyManagedContainer.Create(endpointConfiguration, serviceCollection);
serviceCollection.AddSingleton(_ => new HostAwareMessageSession(startableEndpoint.MessageSession));
serviceCollection.AddSingleton <IMessageSession>(serviceProvider => serviceProvider.GetService <HostAwareMessageSession>());
serviceCollection.AddSingleton <IHostedService>(serviceProvider => new NServiceBusHostedService(
startableEndpoint,
serviceProvider,
serviceProvider.GetRequiredService <ILoggerFactory>(),
deferredLoggerFactory,
serviceProvider.GetRequiredService <HostAwareMessageSession>()));
});
return(hostBuilder);
}
/// <summary>
/// Configures the host to start an NServiceBus endpoint.
/// </summary>
public static IHostBuilder UseNServiceBus(this IHostBuilder hostBuilder, Func <HostBuilderContext, EndpointConfiguration> endpointConfigurationBuilder)
{
hostBuilder.ConfigureServices((ctx, serviceCollection) =>
{
var endpointConfiguration = endpointConfigurationBuilder(ctx);
var startableEndpoint = EndpointWithExternallyManagedContainer.Create(endpointConfiguration, new ServiceCollectionAdapter(serviceCollection));
serviceCollection.AddSingleton(_ => startableEndpoint.MessageSession.Value);
serviceCollection.AddSingleton <IHostedService>(serviceProvider => new NServiceBusHostedService(startableEndpoint, serviceProvider));
});
return(hostBuilder);
}
/// <summary>
/// Adds NServiceBus, IMessageSession, and related services to the IServiceCollection.
/// </summary>
/// <remarks>
/// Use this extension method with WebHost only.
/// </remarks>
public static IServiceCollection AddNServiceBus(this IServiceCollection services, EndpointConfiguration configuration)
{
var startableEndpoint = EndpointWithExternallyManagedContainer.Create(configuration, new ServiceCollectionAdapter(services));
var hostedService = new NServiceBusHostedService(startableEndpoint);
var webHostCompatibleMessageSession = new WebHostCompatibleMessageSession(hostedService);
services.AddSingleton <IMessageSession>(webHostCompatibleMessageSession);
services.AddSingleton <IHostedService>(serviceProvider =>
{
hostedService.UseServiceProvider(serviceProvider);
return(hostedService);
});
return(services);
}
internal static IStartableEndpointWithExternallyManagedContainer Configure(
EndpointConfiguration endpointConfiguration,
IServiceCollection serviceCollection,
string appDirectory = null)
{
var scanner = endpointConfiguration.AssemblyScanner();
if (appDirectory != null)
{
scanner.AdditionalAssemblyScanningPath = appDirectory;
}
scanner.ExcludeAssemblies(InProcessFunctionEndpoint.AssembliesToExcludeFromScanning);
return(EndpointWithExternallyManagedContainer.Create(
endpointConfiguration,
serviceCollection));
}
/// <summary>
/// Configures the host to start an NServiceBus endpoint.
/// </summary>
public static IHostBuilder UseNServiceBus(
this IHostBuilder hostBuilder,
Func <HostBuilderContext, EndpointConfiguration> endpointConfigurationBuilder,
Action <IServiceCollection, IConfiguration> configureServicesForHandlers = null)
{
hostBuilder.ConfigureServices((ctx, serviceCollection) =>
{
var newServiceCollection = new ServiceCollection();
configureServicesForHandlers?.Invoke(newServiceCollection, ctx.Configuration);
var endpointConfiguration = endpointConfigurationBuilder(ctx);
var startableEndpoint = EndpointWithExternallyManagedContainer.Create(endpointConfiguration, new ServiceCollectionAdapter(newServiceCollection));
newServiceCollection.AddSingleton(_ => startableEndpoint.MessageSession.Value);
serviceCollection.AddSingleton(_ => startableEndpoint.MessageSession.Value);
serviceCollection.AddTransient <IHostedService>(_ => new NServiceBusHostedService(startableEndpoint, newServiceCollection.BuildServiceProvider()));
});
return(hostBuilder);
}
