| | | 1 | | // Copyright (c) ZeroC, Inc. |
| | | 2 | | |
| | | 3 | | using Microsoft.Extensions.DependencyInjection; |
| | | 4 | | |
| | | 5 | | namespace IceRpc.Extensions.DependencyInjection.Internal; |
| | | 6 | | |
| | | 7 | | /// <summary>Adapts a middleware with a single service dependency to an IDispatcher.</summary> |
| | | 8 | | internal class MiddlewareAdapter<TDep> : IDispatcher where TDep : notnull |
| | | 9 | | { |
| | | 10 | | private readonly IMiddleware<TDep> _middleware; |
| | | 11 | | |
| | | 12 | | public ValueTask<OutgoingResponse> DispatchAsync(IncomingRequest request, CancellationToken cancellationToken) |
| | | 13 | | { |
| | | 14 | | IServiceProviderFeature feature = request.Features.Get<IServiceProviderFeature>() ?? |
| | | 15 | | throw new InvalidOperationException( |
| | | 16 | | $"There is no {nameof(IServiceProviderFeature)} in the request features."); |
| | | 17 | | |
| | | 18 | | return _middleware.DispatchAsync( |
| | | 19 | | request, |
| | | 20 | | feature.ServiceProvider.GetRequiredService<TDep>(), |
| | | 21 | | cancellationToken); |
| | | 22 | | } |
| | | 23 | | |
| | | 24 | | internal MiddlewareAdapter(IMiddleware<TDep> middleware) => _middleware = middleware; |
| | | 25 | | } |
| | | 26 | | |
| | | 27 | | /// <summary>Adapts a middleware with 2 service dependencies to an IDispatcher.</summary> |
| | | 28 | | internal class MiddlewareAdapter<TDep1, TDep2> : IDispatcher |
| | | 29 | | where TDep1 : notnull |
| | | 30 | | where TDep2 : notnull |
| | | 31 | | { |
| | | 32 | | private readonly IMiddleware<TDep1, TDep2> _middleware; |
| | | 33 | | |
| | | 34 | | public ValueTask<OutgoingResponse> DispatchAsync(IncomingRequest request, CancellationToken cancellationToken) |
| | | 35 | | { |
| | | 36 | | IServiceProviderFeature feature = request.Features.Get<IServiceProviderFeature>() ?? |
| | | 37 | | throw new InvalidOperationException( |
| | | 38 | | $"There is no {nameof(IServiceProviderFeature)} in the request features."); |
| | | 39 | | |
| | | 40 | | return _middleware.DispatchAsync( |
| | | 41 | | request, |
| | | 42 | | feature.ServiceProvider.GetRequiredService<TDep1>(), |
| | | 43 | | feature.ServiceProvider.GetRequiredService<TDep2>(), |
| | | 44 | | cancellationToken); |
| | | 45 | | } |
| | | 46 | | |
| | | 47 | | internal MiddlewareAdapter(IMiddleware<TDep1, TDep2> middleware) => _middleware = middleware; |
| | | 48 | | } |
| | | 49 | | |
| | | 50 | | /// <summary>Adapts a middleware with 3 service dependencies to an IDispatcher.</summary> |
| | | 51 | | internal class MiddlewareAdapter<TDep1, TDep2, TDep3> : IDispatcher |
| | | 52 | | where TDep1 : notnull |
| | | 53 | | where TDep2 : notnull |
| | | 54 | | where TDep3 : notnull |
| | | 55 | | { |
| | | 56 | | private readonly IMiddleware<TDep1, TDep2, TDep3> _middleware; |
| | | 57 | | |
| | | 58 | | public ValueTask<OutgoingResponse> DispatchAsync(IncomingRequest request, CancellationToken cancellationToken) |
| | 1 | 59 | | { |
| | 1 | 60 | | IServiceProviderFeature feature = request.Features.Get<IServiceProviderFeature>() ?? |
| | 1 | 61 | | throw new InvalidOperationException( |
| | 1 | 62 | | $"There is no {nameof(IServiceProviderFeature)} in the request features."); |
| | | 63 | | |
| | 1 | 64 | | return _middleware.DispatchAsync( |
| | 1 | 65 | | request, |
| | 1 | 66 | | feature.ServiceProvider.GetRequiredService<TDep1>(), |
| | 1 | 67 | | feature.ServiceProvider.GetRequiredService<TDep2>(), |
| | 1 | 68 | | feature.ServiceProvider.GetRequiredService<TDep3>(), |
| | 1 | 69 | | cancellationToken); |
| | 1 | 70 | | } |
| | | 71 | | |
| | 2 | 72 | | internal MiddlewareAdapter(IMiddleware<TDep1, TDep2, TDep3> middleware) => _middleware = middleware; |
| | | 73 | | } |