internal static IServiceCollection UsePreStarter(this IServiceCollection services)
{
// Invoke by AddLibrame()
if (services.TryGetAll <IPreStarterFactory>(out var descriptors))
{
descriptors.ForEach(descriptor =>
{
var factory = InitializeFactory(descriptor);
factory?.Create(services);
});
}
return(services);
// InitializeFactory
IPreStarterFactory InitializeFactory(ServiceDescriptor descriptor)
{
IPreStarterFactory factory = null;
if (descriptor.ImplementationInstance.IsNotNull())
{
factory = descriptor.ImplementationInstance as IPreStarterFactory;
}
else if (descriptor.ImplementationType.IsNotNull())
{
factory = descriptor.ImplementationType.EnsureCreate <IPreStarterFactory>();
}
return(factory);
}
}
/// <summary>
/// 添加 Librame 预启动器工厂。
/// </summary>
/// <param name="services">给定的 <see cref="IServiceCollection"/>。</param>
/// <param name="starter">给定的 <see cref="IPreStarterFactory"/>。</param>
/// <returns>返回 <see cref="IServiceCollection"/>。</returns>
public static IServiceCollection AddLibramePreStarterFactory(this IServiceCollection services,
IPreStarterFactory starter)
=> services.AddSingleton(starter);
