Add validation
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@@ -41,43 +41,43 @@ public static class IServiceCollectionExtensions
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string? key = null)
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where THandler : IHandler
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{
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if (typeof(THandler).GetInterfaces() is Type[] contracts)
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if (typeof(THandler).GetInterfaces() is Type[] handlerTypes)
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{
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foreach (Type contract in contracts)
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foreach (Type handlerType in handlerTypes)
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{
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if (contract.Name == typeof(INotificationHandler<>).Name &&
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contract.GetGenericArguments() is { Length: 1 } notificationHandlerArguments)
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if (handlerType.Name == typeof(INotificationHandler<>).Name &&
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handlerType.GetGenericArguments() is { Length: 1 } notificationHandlerArguments)
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{
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Type notificationType = notificationHandlerArguments[0];
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Type wrapperType = typeof(NotificationHandlerWrapper<>).MakeGenericType(notificationType);
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string actualKey = $"{(key is not null ? $"{key}:" : "")}{notificationType}";
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string preferredKey = $"{(key is not null ? $"{key}:" : "")}{notificationType}";
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services.Add(new ServiceDescriptor(typeof(INotificationHandler<>)
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.MakeGenericType(notificationType), actualKey, typeof(THandler), lifetime));
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.MakeGenericType(notificationType), preferredKey, typeof(THandler), lifetime));
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services.Add(new ServiceDescriptor(wrapperType, actualKey, (provider, registeredKey) =>
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services.Add(new ServiceDescriptor(wrapperType, preferredKey, (provider, registeredKey) =>
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provider.GetService<IServiceFactory>()?.Create(wrapperType,
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provider.GetRequiredKeyedService(typeof(INotificationHandler<>).MakeGenericType(notificationType), registeredKey),
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provider.GetServices(typeof(IPipelineBehaviour<>)
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.MakeGenericType(notificationType)))!, lifetime));
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}
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if (contract.Name == typeof(IHandler<,>).Name &&
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contract.GetGenericArguments() is { Length: 2 } handlerArguments)
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if (handlerType.Name == typeof(IHandler<,>).Name &&
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handlerType.GetGenericArguments() is { Length: 2 } handlerArguments)
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{
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Type requestType = handlerArguments[0];
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Type responseType = handlerArguments[1];
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Type wrapperType = typeof(HandlerWrapper<,>).MakeGenericType(requestType, responseType);
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string actualKey = $"{(key is not null ? $"{key}:" : "")}{wrapperType}";
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string preferredKey = $"{(key is not null ? $"{key}:" : "")}{wrapperType}";
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services.Add(new ServiceDescriptor(typeof(THandler), actualKey,
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services.Add(new ServiceDescriptor(typeof(THandler), preferredKey,
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typeof(THandler), lifetime));
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services.Add(new ServiceDescriptor(wrapperType, actualKey, (provider, actualKey) =>
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services.Add(new ServiceDescriptor(wrapperType, preferredKey, (provider, actualKey) =>
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provider.GetService<IServiceFactory>()?.Create(wrapperType,
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provider.GetRequiredKeyedService<THandler>(actualKey),
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provider.GetRequiredKeyedService<THandler>(preferredKey),
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provider.GetServices(typeof(IPipelineBehaviour<,>)
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.MakeGenericType(requestType, responseType)))!, lifetime));
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}
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