Mediator work

This commit is contained in:
Daniel Clark
2022-12-16 12:30:52 +00:00
parent 2b7bd315a5
commit b6bb5d5b0f
5 changed files with 204 additions and 27 deletions
@@ -1,34 +1,20 @@
using Mediator;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.DependencyInjection.Extensions;
using Microsoft.Extensions.Options;
namespace Toolkit.Framework.Foundation;
public static class IServiceCollectionExtensions
{
public static IServiceCollection AddHandler<TRequestHandler>(this IServiceCollection services) where TRequestHandler : notnull
public static IServiceCollection AddConfiguration<TConfiguration>(this IServiceCollection serviceCollection, IConfiguration configuration) where TConfiguration : class, new()
{
if (typeof(TRequestHandler).GetInterface(typeof(IRequestHandler<,>).Name) is { } contract)
{
if (contract.GetGenericArguments() is { Length: 2 } arguments)
{
Type requestType = arguments[0];
Type responseType = arguments[1];
Type wrapperType = typeof(RequestClassHandlerWrapper<,>).MakeGenericType(requestType, responseType);
serviceCollection.Configure<TConfiguration>(configuration);
serviceCollection.AddTransient(provider => provider.GetService<IOptionsMonitor<TConfiguration>>()!.CurrentValue);
serviceCollection.AddTransient<ConfigurationInitializer<TConfiguration>>();
services.TryAdd(new ServiceDescriptor(typeof(TRequestHandler), typeof(TRequestHandler), ServiceLifetime.Transient));
services.Add(new ServiceDescriptor(wrapperType,
sp =>
{
return sp.GetService<IServiceFactory>()?.Create(wrapperType, sp.GetRequiredService<TRequestHandler>(), sp.GetServices(typeof(IPipelineBehavior<,>).MakeGenericType(requestType, responseType)))!;
},
ServiceLifetime.Transient
));
}
}
return services;
return serviceCollection;
}
public static IServiceCollection AddFoundation(this IServiceCollection serviceCollection)
@@ -50,4 +36,80 @@ public static class IServiceCollectionExtensions
return serviceCollection;
}
public static IServiceCollection AddHandler<THandler>(this IServiceCollection services, ServiceLifetime lifetime = ServiceLifetime.Transient) where THandler : notnull
{
if (typeof(THandler).GetInterface(typeof(IRequestHandler<,>).Name) is { } requestContract)
{
if (requestContract.GetGenericArguments() is { Length: 2 } arguments)
{
Type requestType = arguments[0];
Type responseType = arguments[1];
Type wrapperType = typeof(RequestClassHandlerWrapper<,>).MakeGenericType(requestType, responseType);
services.TryAdd(new ServiceDescriptor(typeof(THandler), typeof(THandler), lifetime));
services.Add(new ServiceDescriptor(wrapperType,
sp =>
{
return sp.GetService<IServiceFactory>()?.Create(wrapperType, sp.GetRequiredService<THandler>(), sp.GetServices(typeof(IPipelineBehavior<,>).MakeGenericType(requestType, responseType)))!;
},
lifetime
));
}
}
if (typeof(THandler).GetInterface(typeof(ICommandHandler<,>).Name) is { } commandContract)
{
if (commandContract.GetGenericArguments() is { Length: 2 } arguments)
{
Type requestType = arguments[0];
Type responseType = arguments[1];
Type wrapperType = typeof(CommandClassHandlerWrapper<,>).MakeGenericType(requestType, responseType);
services.TryAdd(new ServiceDescriptor(typeof(THandler), typeof(THandler), lifetime));
services.Add(new ServiceDescriptor(wrapperType,
sp =>
{
return sp.GetService<IServiceFactory>()?.Create(wrapperType, sp.GetRequiredService<THandler>(), sp.GetServices(typeof(IPipelineBehavior<,>).MakeGenericType(requestType, responseType)))!;
},
lifetime
));
}
}
if (typeof(THandler).GetInterface(typeof(IQueryHandler<,>).Name) is { } queryContract)
{
if (queryContract.GetGenericArguments() is { Length: 2 } arguments)
{
Type requestType = arguments[0];
Type responseType = arguments[1];
Type wrapperType = typeof(QueryClassHandlerWrapper<,>).MakeGenericType(requestType, responseType);
services.TryAdd(new ServiceDescriptor(typeof(THandler), typeof(THandler), lifetime));
services.Add(new ServiceDescriptor(wrapperType,
sp =>
{
return sp.GetService<IServiceFactory>()?.Create(wrapperType, sp.GetRequiredService<THandler>(), sp.GetServices(typeof(IPipelineBehavior<,>).MakeGenericType(requestType, responseType)))!;
},
lifetime
));
}
}
return services;
}
public static IServiceCollection AddWritableConfiguration<TConfiguration>(this IServiceCollection serviceCollection, IConfiguration configuration) where TConfiguration : class, new()
{
serviceCollection.Configure<TConfiguration>(configuration);
serviceCollection.AddTransient<IConfigurationWriter<TConfiguration>, ConfigurationWriter<TConfiguration>>();
serviceCollection.AddTransient(provider => provider.GetService<IOptionsMonitor<TConfiguration>>()!.CurrentValue);
serviceCollection.AddHandler<WriteHandler<TConfiguration>>();
serviceCollection.AddTransient<ConfigurationInitializer<TConfiguration>>();
return serviceCollection;
}
}