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Readarr/src/NzbDrone.Common/ServiceFactory.cs

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1.2 KiB

using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.Extensions.DependencyInjection;
namespace NzbDrone.Common
{
public interface IServiceFactory
{
T Build<T>()
where T : class;
IEnumerable<T> BuildAll<T>()
where T : class;
object Build(Type contract);
IEnumerable<Type> GetImplementations(Type contract);
}
public class ServiceFactory : IServiceFactory
{
private readonly System.IServiceProvider _container;
public ServiceFactory(System.IServiceProvider container)
{
_container = container;
}
public T Build<T>()
where T : class
{
return _container.GetRequiredService<T>();
}
public IEnumerable<T> BuildAll<T>()
where T : class
{
return _container.GetServices<T>().GroupBy(c => c.GetType().FullName).Select(g => g.First());
}
public object Build(Type contract)
{
return _container.GetRequiredService(contract);
}
public IEnumerable<Type> GetImplementations(Type contract)
{
return _container.GetServices(contract).Select(x => x.GetType());
}
}
}