Nikita Chizhov NikitaChizhov

NikitaChizhov / ConfigureServiceCollectionWithDecorator3.cs

Created February 11, 2020 21:04

	public void ConfigureServices(IServiceCollection services)
	{
	services
	.AddLogging(configure =>
	{
	configure.AddConsole();
	configure.SetMinimumLevel(LogLevel.Information);
	})
	.AddSingleton<IImportantDataProvider, ImportantDataProvider>()
	.AddSingleton<IExampleService, ExampleService>()

NikitaChizhov / DecorateWithDispatchProxy.cs

Created February 11, 2020 20:59

	internal static class ServiceCollectionsExtensions
	{
	public static IServiceCollection DecorateWithDispatchProxy<TInterface, TProxy>(this IServiceCollection services)
	where TInterface : class
	where TProxy : DispatchProxy
	{
	MethodInfo createMethod;
	try
	{
	createMethod = typeof(TProxy)

NikitaChizhov / DispatchProxyLoggingDecorator.cs

Created February 11, 2020 20:56

	internal class DispatchProxyLoggingDecorator<TDecorated> : DispatchProxy
	{
	private TDecorated _decorated;

	private ILogger<DispatchProxyLoggingDecorator<TDecorated>> _logger;

	protected override object Invoke(MethodInfo targetMethod, object[] args)
	{
	try
	{

NikitaChizhov / DispatchProxyMinimalLoggingDecorator.cs

Created February 11, 2020 20:55

	internal class DispatchProxyMinimalLoggingDecorator<TDecorated> : DispatchProxy
	{
	private TDecorated _decorated;

	private ILogger<DispatchProxyLoggingDecorator<TDecorated>> _logger;

	protected override object Invoke(MethodInfo targetMethod, object[] args)
	{
	try
	{

NikitaChizhov / DispatchProxyDecoratorMinimal.cs

Last active February 11, 2020 20:44

	internal class DispatchProxyEmptyDecorator<TDecorated> : DispatchProxy
	{
	private TDecorated _decorated;

	protected override object Invoke(MethodInfo targetMethod, object[] args)
	{
	var result = targetMethod.Invoke(_decorated, args);
	return result;
	}

NikitaChizhov / ConfigureServiceCollectionWithDecorator2.cs

Last active February 11, 2020 20:12

	public void ConfigureServices(IServiceCollection services)
	{
	services
	.AddLogging(configure =>
	{
	configure.AddConsole();
	configure.SetMinimumLevel(LogLevel.Information);
	})
	.AddSingleton<IImportantDataProvider, ImportantDataProvider>()
	.AddSingleton<IExampleService, ExampleService>()

NikitaChizhov / ConfigureServicesWithDecoratorsNaive.cs

Created February 11, 2020 20:04

	void ConfigureServices(IServiceCollection services)
	{
	services
	.AddLogging(configure =>
	{
	configure.AddConsole();
	configure.SetMinimumLevel(LogLevel.Information);
	})
	.AddSingleton<IImportantDataProvider, ImportantDataProvider>()
	.AddSingleton<IExampleService>(sp =>

NikitaChizhov / ServiceCollectionExtensionForClassicDecorators.cs

Last active February 11, 2020 20:12

	public static IServiceCollection Decorate<TInterface, TDecorator>(this IServiceCollection services)
	where TInterface : class
	where TDecorator : class, TInterface
	{
	var objectFactory = ActivatorUtilities.CreateFactory(
	typeof(TDecorator),
	new[] { typeof(TInterface) });

	// Save all descriptors that needs to be decorated into a list.
	var descriptorsToDecorate = services

NikitaChizhov / ExampleServiceClassicDecorator.cs

Created February 11, 2020 19:46

	internal sealed class ExampleServiceClassicDecorator : IExampleService
	{
	private readonly IExampleService _decorated;

	private readonly ILogger<ExampleServiceClassicDecorator> _logger;

	public ExampleServiceClassicDecorator(IExampleService decorated,
	ILogger<ExampleServiceClassicDecorator> logger)
	{
	_decorated = decorated;

NikitaChizhov / ImportantDataProvider.cs

Created February 11, 2020 19:38

	internal interface IImportantDataProvider
	{
	TimeSpan GetTimeToWait();
	}

	internal sealed class ImportantDataProvider : IImportantDataProvider
	{
	/// <inheritdoc />
	public TimeSpan GetTimeToWait() => TimeSpan.FromSeconds(2);
	}