Call interception method

Question

Is there a way to intercept method calls without any code changes around the method itself?

I do not need to introduce any custom runtime behavior, add my own performance logs to an existing project.

Answer 1

You want aspect-oriented programming.

There are 4 basic aromas of AOP

• Runtime RealProxyaop
• Subroutine Subclass / AOP Virtual Method
• Post Compile IL weave AOP
• Precompile AOP source code

( ). , "" . , , IL, Post Compile IL.

, ,

• Unity
• Spring.NET
• Castle.Windsor

, , , Entity Framework ( Lazy-, ).

, . , dll , , .

• Postharp Pro
• Mono.Cecil
• Fody ( mono.cecil)

. , - .. . #. ... ... .

, , Fody. , , ( Postsharp Pro), nuget Fody.MethodTimer.

Answer 2

Aspect Oriented Programming , .

: http://docs.castleproject.org/Default.aspx?Page=Introduction-to-AOP-With-Castle&NS=Windsor&AspxAutoDetectCookieSupport=1

http://fgheysels.blogspot.be/2006/11/aspect-oriented-programming-in-net.html

Answer 3

AOP-, Spring.NET Unity, . , .

Answer 4

Castle DynamicProxy . , AOP, IoC.

Answer 5

PostSharp

[Serializable]
public class LogPerformance : OnMethodBoundaryAspect
{
    [NonSerialized]
    Stopwatch _stopWatch;

    public override void OnEntry(MethodExecutionArgs args)
    {
        _stopWatch = Stopwatch.StartNew();
        base.OnEntry(args);
    }

    public override void OnExit(PostSharp.Aspects.MethodExecutionArgs args)
    {
        Console.WriteLine(string.Format("[{0}] took {1} ms to execute",
          new StackTrace().GetFrame(1).GetMethod().Name,
            _StopWatch.ElapsedMilliseconds));
        base.OnExit(args);
    }
}

, , :

[LogPerformance]
static void LongRunningCalc()
{
    //Your Code goes here
}

: http://www.codeproject.com/Articles/337564/Aspect-Oriented-Programming-Using-Csharp-and-PostS

Answer 6

, , Fody: https://github.com/fody

, . , . nuget.

:

• PropertyChanged: ( INotifyPropertyChanged )
• Anotar ( )
• ( )
• ... !

Requirements, examples, and documents can be found on the fodys github pages .