Pantoflowo-aspektowe sko_dev_jarzenie

  1:  public class Man
  2:  {
  3:  	public void DrinkBeer()
  4:  	{
  5:  		Console.WriteLine("Drinking beer, yummy!");
  6:  	}
  7:  
  8:  	public void BuyFlowers()
  9:  	{
 10:  		Console.WriteLine("Giving flowers for my valentine...");
 11:  	}
 12:  
 13:  	public void WatchTv()
 14:  	{
 15:  		Console.WriteLine("Relaxing with tv.");
 16:  	}
 17:  }

  1:  static void Main(string[] args)
  2:  {
  3:  	Man freeMan = new Man();
  4:  
  5:  	freeMan.DrinkBeer();
  6:  	Console.WriteLine("------------------");
  7:  	freeMan.BuyFlowers();
  8:  	Console.WriteLine("------------------");
  9:  	freeMan.WatchTv();
 10:  }

  1:  [Serializable, MulticastAttributeUsage(MulticastTargets.Method)]
  2:  public class PantofelAttribute : OnMethodBoundaryAspect
  3:  {
  4:  	private readonly Girlfriend _girlfriend = new Girlfriend();
  5:  
  6:  	public override void OnEntry(MethodExecutionEventArgs eventArgs)
  7:  	{
  8:  		var actionName = eventArgs.Method.Name;
  9:  		try
 10:  		{
 11:  			_girlfriend.ConsiderPermission(actionName);
 12:  		}
 13:  		catch (Exception exc)
 14:  		{
 15:  			Console.WriteLine(
 16:  @"Sorry, permission for {0} was not granted.
 17:  {1} was thrown with the following message from your dearest beloveth:
 18:  ""{2}""",
 19:  actionName, exc.GetType().Name, exc.Message);
 20:
 21:  			eventArgs.FlowBehavior = FlowBehavior.Return;
 22:  		}
 23:  	}
 24:  }

  1:  [Serializable]
  2:  public class Girlfriend
  3:  {
  4:  	public void ConsiderPermission(string actionName)
  5:  	{
  6:  		// no way!
  7:  		if (actionName.Contains("Beer"))
  8:  		{
  9:  			throw new Foch("You've got to be kidding me!");
 10:  		}
 11:  
 12:  		// sure, go ahead
 13:  		if (actionName.Contains("Flowers"))
 14:  			return;
 15:  
 16:  		// default, rather strict, permission-rejecting rule
 17:  		throw new IDontThinkSoException("Not really sure, but better not.");
 18:  	}
 19:  }

  1:  [Pantofel]
  2:  public class Man
  3:  {