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import java.lang.annotation.*;
@Retention(RetentionPolicy.RUNTIME)
@interface Colored { String color(); }
@Retention(RetentionPolicy.RUNTIME)
@interface Material { String material(); }
@Colored(color="yellow") @Material(material="wood")
public class AtThis2 {
public static void main(String[]argv) {
new AtThis2().start();
new SubA().start();
new SubB().start();
X.verify();
}
@Colored(color="red")
public void m() {
System.err.println("method running\n");
}
public void start() { m(); }
}
@Material(material="metal") @Colored(color="green")
class SubA extends AtThis2 { }
@Material(material="jelly") @Colored(color="magenta")
class SubB extends SubA { }
aspect X {
static int count = 0;
before(Colored c,Material m): call(* m(..)) && !within(X) && @this(c) && @this(m) {
System.err.println("advice running ("+c.color()+","+m.material()+")");
count++;
if (count== 1) {
if (!c.color().equals("yellow"))
throw new RuntimeException("First advice execution, color should be yellow:"+c.color());
if (!m.material().equals("wood"))
throw new RuntimeException("First advice execution, material should be wood:"+m.material());
}
if (count == 2) {
if (!c.color().equals("green"))
throw new RuntimeException("Second advice execution, color should be green");
if (!m.material().equals("metal"))
throw new RuntimeException("Second advice execution, material should be metal");
}
if (count == 3) {
if (!c.color().equals("magenta"))
throw new RuntimeException("Third advice execution, color should be magenta");
if (!m.material().equals("jelly"))
throw new RuntimeException("Third advice execution, material should be jelly");
}
}
public static void verify() {
if (count!=3) throw new Error("Should be 3 runs: "+count);
}
}
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