| | | 1 | | using AsyncResponse; |
| | | 2 | | using AsyncResponse.Transports.SqlServer; |
| | | 3 | | using Microsoft.Extensions.DependencyInjection.Extensions; |
| | | 4 | | |
| | | 5 | | namespace Microsoft.Extensions.DependencyInjection; |
| | | 6 | | |
| | | 7 | | /// <summary>DI registration for the Microsoft SQL Server AsyncResponse transport package.</summary> |
| | | 8 | | public static class SqlServerAsyncResponseTransportServiceCollectionExtensions |
| | | 9 | | { |
| | | 10 | | /// <summary> |
| | | 11 | | /// Registers SQL Server as the worker transport and response ingress in one call: |
| | | 12 | | /// worker jobs are inserted into the configured worker queue, hosted subscribers claim rows with |
| | | 13 | | /// <c>UPDLOCK, ROWLOCK, READPAST</c> (SQL Server's <c>SKIP LOCKED</c> equivalent), and response |
| | | 14 | | /// rows are fed into the transport-neutral <see cref="IAsyncResponseIngress"/>. Configure |
| | | 15 | | /// <see cref="SqlServerAsyncResponseTransportOptions.ConnectionString"/> with the application's |
| | | 16 | | /// SQL Server database. |
| | | 17 | | /// </summary> |
| | | 18 | | public static AsyncResponseRegistrationBuilder WithSqlServerTransport( |
| | | 19 | | this AsyncResponseRegistrationBuilder builder, |
| | | 20 | | Action<SqlServerAsyncResponseTransportOptions> configure) |
| | | 21 | | { |
| | 204 | 22 | | ArgumentNullException.ThrowIfNull(configure); |
| | | 23 | | |
| | 202 | 24 | | var services = builder.Services; |
| | 202 | 25 | | services.AddOptions(); |
| | 202 | 26 | | services.Configure(configure); |
| | | 27 | | |
| | 202 | 28 | | services.TryAddSingleton<SqlServerTransportStore>(); |
| | | 29 | | // Factory registration so the transport shares the singleton store: DI would otherwise |
| | | 30 | | // pick the public one-arg constructor (internal ctors are invisible to it), giving the |
| | | 31 | | // publisher a private store whose in-process MessagePublished event the subscribers never |
| | | 32 | | // observe — silently downgrading every same-process publish from instant wake to |
| | | 33 | | // poll-interval latency. |
| | 398 | 34 | | services.TryAddSingleton(provider => new SqlServerWorkerTransport( |
| | 398 | 35 | | provider.GetRequiredService<Microsoft.Extensions.Options.IOptions<SqlServerAsyncResponseTransportOptions>>() |
| | 398 | 36 | | provider.GetRequiredService<SqlServerTransportStore>())); |
| | 398 | 37 | | services.Replace(ServiceDescriptor.Singleton<IWorkerTransport>(provider => provider.GetRequiredService<SqlServer |
| | 202 | 38 | | services.Replace(ServiceDescriptor.Singleton<IAsyncResponseReplyTargetProvider, SqlServerReplyTargetProvider>()) |
| | 202 | 39 | | services.AddSingleton(provider => |
| | 202 | 40 | | { |
| | 202 | 41 | | // Resolved ack modes declared to the Core startup validator, which vetoes early ACK on |
| | 202 | 42 | | // the worker queue durable-flow wake-ups ride (see AsyncResponseStartupValidator). |
| | 200 | 43 | | var options = provider.GetRequiredService<Microsoft.Extensions.Options.IOptions<SqlServerAsyncResponseTransp |
| | 200 | 44 | | return new AsyncResponseTransportMarker(SqlServerAsyncResponseTransportOptions.TransportName) |
| | 200 | 45 | | { |
| | 200 | 46 | | WorkerSubscriberUsesEarlyAck = options.WorkerSubscriber.AckMode == SqlServerAckMode.AckAfterEnqueue, |
| | 200 | 47 | | WorkerAckModePath = $"{nameof(SqlServerAsyncResponseTransportOptions)}.{nameof(options.WorkerSubscriber) |
| | 200 | 48 | | ResponseSubscriberUsesEarlyAck = options.ResponseSubscriber.AckMode == SqlServerAckMode.AckAfterEnqueue, |
| | 200 | 49 | | ResponseAckModePath = $"{nameof(SqlServerAsyncResponseTransportOptions)}.{nameof(options.ResponseSubscri |
| | 200 | 50 | | }; |
| | 202 | 51 | | }); |
| | | 52 | | |
| | 202 | 53 | | services.AddHostedService<SqlServerWorkerSubscriber>(); |
| | 202 | 54 | | services.AddHostedService<SqlServerResponseIngressSubscriber>(); |
| | | 55 | | |
| | 202 | 56 | | return builder; |
| | | 57 | | } |
| | | 58 | | } |