C# Auto-scanning factory

问题

I there any patterns or internal solutions for solving next problem:

i've got interface ImyInterface(or some baseClass) and Attribute myAttribute. I need a factory class, that provides me functionality for searching all types with empty constructor, inheriting ImyInterface and marked with attribute myAttribute.

I wanna search in different modes: 1) search types in current assembly 2) search types in all solution assemblies 3) search types in target library (.lib or .dll)

at result I wanna see something like this:

Some sought-for type implementation:

[myAttribute(uniqueTypeNameOrSomethingLikeThat = "SuperClass")]
public class mySomeResource:ImyInterface
{
   mySomeResource(){...}
}

Factory using:

  myResourceFactory  factory = new myResourceFactory(typeof(ImyInterface), typeof(myAttribute));

  factory.ScanThisAssembly();
  factory.ScanDirrectory("C:\\libraries");

  var atlast = (ImyInterface)factory.Create("SuperClass");

I've already wrote my own solution, but I'am in fear of "reinventing the wheel".

got any ideas/experience about this problem?

回答1:

That pattern is called Inversion of control. There are about a million dependency injection containers solving this problem, each with their own positive and negative quirks. Pick one that you like best or roll your own if none fits your needs.

来源：https://stackoverflow.com/questions/17148506/c-sharp-auto-scanning-factory