| | | 1 | | using AsyncResponse; |
| | | 2 | | using AsyncResponse.Transports.PostgreSQL; |
| | | 3 | | using Microsoft.Extensions.DependencyInjection.Extensions; |
| | | 4 | | |
| | | 5 | | namespace Microsoft.Extensions.DependencyInjection; |
| | | 6 | | |
| | | 7 | | /// <summary>DI registration for the PostgreSQL AsyncResponse transport package.</summary> |
| | | 8 | | public static class PostgreSqlAsyncResponseTransportServiceCollectionExtensions |
| | | 9 | | { |
| | | 10 | | /// <summary> |
| | | 11 | | /// Registers PostgreSQL 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>FOR UPDATE SKIP LOCKED</c>, and response rows are fed into the transport-neutral |
| | | 14 | | /// <see cref="IAsyncResponseIngress"/>. The host must register a shared |
| | | 15 | | /// <see cref="Npgsql.NpgsqlDataSource"/> singleton. |
| | | 16 | | /// </summary> |
| | | 17 | | public static AsyncResponseRegistrationBuilder WithPostgreSqlTransport( |
| | | 18 | | this AsyncResponseRegistrationBuilder builder, |
| | | 19 | | Action<PostgreSqlAsyncResponseTransportOptions> configure) |
| | | 20 | | { |
| | 210 | 21 | | ArgumentNullException.ThrowIfNull(configure); |
| | | 22 | | |
| | 208 | 23 | | var services = builder.Services; |
| | 208 | 24 | | services.AddOptions(); |
| | 208 | 25 | | services.Configure(configure); |
| | | 26 | | |
| | 208 | 27 | | services.TryAddSingleton<PostgreSqlTransportStore>(); |
| | | 28 | | // Factory registration so the transport shares the singleton store: DI would otherwise |
| | | 29 | | // pick the public constructor (internal ctors are invisible to it), giving the publisher |
| | | 30 | | // a private store whose in-process MessagePublished event the subscribers never observe — |
| | | 31 | | // silently downgrading every same-process publish from instant wake to poll-interval |
| | | 32 | | // latency. Mirrors the MongoDB transport's factory registration. |
| | 404 | 33 | | services.TryAddSingleton(provider => new PostgreSqlWorkerTransport( |
| | 404 | 34 | | provider.GetRequiredService<Microsoft.Extensions.Options.IOptions<PostgreSqlAsyncResponseTransportOptions>>( |
| | 404 | 35 | | provider.GetRequiredService<PostgreSqlTransportStore>())); |
| | 404 | 36 | | services.Replace(ServiceDescriptor.Singleton<IWorkerTransport>(provider => provider.GetRequiredService<PostgreSq |
| | 208 | 37 | | services.Replace(ServiceDescriptor.Singleton<IAsyncResponseReplyTargetProvider, PostgreSqlReplyTargetProvider>() |
| | 208 | 38 | | services.AddSingleton(provider => |
| | 208 | 39 | | { |
| | 208 | 40 | | // Resolved ack modes declared to the Core startup validator, which vetoes early ACK on |
| | 208 | 41 | | // the worker queue durable-flow wake-ups ride (see AsyncResponseStartupValidator). |
| | 206 | 42 | | var options = provider.GetRequiredService<Microsoft.Extensions.Options.IOptions<PostgreSqlAsyncResponseTrans |
| | 206 | 43 | | return new AsyncResponseTransportMarker(PostgreSqlAsyncResponseTransportOptions.TransportName) |
| | 206 | 44 | | { |
| | 206 | 45 | | WorkerSubscriberUsesEarlyAck = options.WorkerSubscriber.AckMode == PostgreSqlAckMode.AckAfterEnqueue, |
| | 206 | 46 | | WorkerAckModePath = $"{nameof(PostgreSqlAsyncResponseTransportOptions)}.{nameof(options.WorkerSubscriber |
| | 206 | 47 | | ResponseSubscriberUsesEarlyAck = options.ResponseSubscriber.AckMode == PostgreSqlAckMode.AckAfterEnqueue |
| | 206 | 48 | | ResponseAckModePath = $"{nameof(PostgreSqlAsyncResponseTransportOptions)}.{nameof(options.ResponseSubscr |
| | 206 | 49 | | }; |
| | 208 | 50 | | }); |
| | | 51 | | |
| | 208 | 52 | | services.AddHostedService<PostgreSqlWorkerSubscriber>(); |
| | 208 | 53 | | services.AddHostedService<PostgreSqlResponseIngressSubscriber>(); |
| | | 54 | | |
| | 208 | 55 | | return builder; |
| | | 56 | | } |
| | | 57 | | } |