Introduction

Bu paket, Autofac DI kullanımında interface ve class interceptor kullanımı için oluşturulmuştur. MemoryCache, DistributedCache, Logging ve Trace için ön yüklü interceptor barındırmaktadır.

Installing

dotnet add package Ecozum.Autofac.Extensions.Interception

Sample

//AutofacModule.cs
public class AutofacModule : Module
{
    protected override void Load(ContainerBuilder builder)
    {
        //Register interceptors
        builder.RegisterType<LoggingInterceptor>();
        builder.RegisterType<DistributedCacheInterceptor>();
        builder.RegisterType<TraceInterceptor>();

        builder.RegisterType<WeatherForecastService>()
               .As<IWeatherForecastService>()
               .InstancePerLifetimeScope()
               .InterfaceIntercept(typeof(LoggingInterceptor), 
                                   typeof(DistributedCacheInterceptor),
                                   typeof(TraceInterceptor));
        
        builder.RegisterType<SomeService>()
               .As<ISomeService>()
               .InstancePerLifetimeScope()
               .InterfaceIntercept(typeof(TraceInterceptor));
    }
}

//WeatherForecastService.cs
public interface IWeatherForecastService
{
    WeatherForecast[] GetForRegion(WeatherRequest region);
    void NoForCaching();
    Guid FixCacheKey();
    string GenerateSecretKey(int len);
}
public class WeatherForecastService : IWeatherForecastService
{
    private readonly ISomeService _someService;

    public WeatherForecastService(ISomeService someService)
    {
        _someService = someService;
    }
    
    [Cache("region.City+region.District", KeyType = CacheKeyType.ByParameter)]
    public void NoForCaching()
    {
        Debug.WriteLine("Test the" + nameof(NoForCaching));
    }

    [Cache("region.City+region.District", KeyType = CacheKeyType.ByParameter)]
    public WeatherForecast[] GetForRegion(WeatherRequest region)
    {
        string[] Summaries = new[]
        {
            "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot","Sweltering", "Scorching"
        };

        var rng = new Random();
        var now = DateTime.Now;

        return Enumerable.Range(1, 5).Select(index => new WeatherForecast
        {
            MeasurementedAt = now,
            Date = DateTime.Now.AddDays(index),
            TemperatureC = rng.Next(-20, 55),
            Summary = Summaries[rng.Next(Summaries.Length)]
        })
        .ToArray();
    }

    [Cache("fixed", AbsoluteExpirationAsMinute = 1)]
    public Guid FixCacheKey()
    {
        return Guid.NewGuid();
    }

    [Trace("trace-example", Description = "Random Secret Key", LogInputOutput = true,LogException = true)]
    public string GenerateSecretKey(int len)
    {
        string randomString = _someService.RandomString();
        return randomString.Substring(0, len);
    }
}

//SomeService.cs
public interface ISomeService
{
    string RandomString();
}

public class SomeService : ISomeService
{
    [Trace("trace-example", Description = "Generate Random String", LogInputOutput = true,LogException = true)]
    public string RandomString()
    {
        using (RNGCryptoServiceProvider provider = new RNGCryptoServiceProvider())
        {
            byte[] bytes = new byte[64];
            provider.GetBytes(bytes);
            return Convert.ToBase64String(bytes);
        }
    }
}

Output

[09:03:51 INF] AutofacInterceptorExample Development EMRECAGLAR ::1 4d524efe-83eb-435b-898d-182b14dd7289 trace-example #2 Generate Random String [String SomeService.RandomString()] TraceCorrelation: "129439ff-d0ca-4681-81af-69954ab5c415" Elapsed: 12ms - {"args":{},"ReturnValue":"F4nLy8HbQ068LijPSaAZTo9Cz4tnr295/UYvnhySg8e/tzHG7L7hb5NxTuye06BDfpZ6lAZKCBa4S+7uOflbiQ=="}

[09:03:51 INF] AutofacInterceptorExample Development EMRECAGLAR ::1 4d524efe-83eb-435b-898d-182b14dd7289 trace-example #1 Random Secret Key [String WeatherForecastService.GenerateSecretKey(Int32 len)] TraceCorrelation: "129439ff-d0ca-4681-81af-69954ab5c415" Elapsed: 13ms - geçen süre {"args":{"len":32},"ReturnValue":"F4nLy8HbQ068LijPSaAZTo9Cz4tnr295"}