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import java.lang.annotation.*;
import org.aspectj.lang.reflect.MethodSignature;
import java.lang.reflect.*;
/**
* test annotations on itds in various ways
* 1) annotated ITD
* 2) binding of an annotation on an ITD member
* 3) annotated ITD via declare @xxx
* 4) binding of annotated ITD via declare
*/
public aspect AnnotationsAndITDs {
// annotated ITD constructors
@SomeAnnotation(s="hello",clazz=AnnotationsAndITDs.class)
public ITDMe.new(String s) {}
@SomeAnnotation(s="goodbye",clazz=String.class)
private ITDMe.new(int x) {}
// annotated ITD methods
@SomeAnnotation(s="x",clazz=Object.class)
private void ITDMe.foo() {}
@SomeAnnotation(s="y",clazz=Integer.class)
public void ITDMe.bar(@ParamAnnotation int x) {}
// annotated ITD fields
@SomeAnnotation(s="d",clazz=Double.class)
public Double ITDMe.d;
@SomeAnnotation(s="f",clazz=Double.class)
private Float ITDMe.f;
// declare @xxx on ITD members
// =============================
// annotated ITD constructors
declare @constructor : ITDMe2.new(..) : @SomeAnnotation(s="@cons",clazz=String.class);
public ITDMe2.new(String s) {}
private ITDMe2.new(int x) {}
// annotated ITD methods
declare @method : * ITDMe2.*(..) : @SomeAnnotation(s="@method",clazz=ITDMe2.class);
private void ITDMe2.foo() {}
public void ITDMe2.bar(@ParamAnnotation int x) {}
// annotated ITD fields
declare @field : * ITDMe2.* : @SomeAnnotation(s="@field",clazz=ITDMe2.class);
public Double ITDMe2.d = 2d;
private Float ITDMe2.f = 1.0f;
declare @type : ITDMe* : @SomeAnnotation(s="@type",clazz=System.class);
public static void main(String[] args) {
ITDMe itdme1 = new ITDMe("foo");
ITDMe itdme2 = new ITDMe(5);
itdme1.foo();
itdme1.bar(6);
itdme1.d = 1.0d;
itdme1.f = 1.0f;
ITDMe2 itdme21 = new ITDMe2("foo");
ITDMe2 itdme22 = new ITDMe2(5);
itdme21.foo();
itdme21.bar(6);
itdme21.d = 1.0d;
itdme21.f = 1.0f;
}
}
aspect AnnotationTests {
// static tests
declare warning : execution(@SomeAnnotation * *(..)) : "execution(@SomeAnnotation ...)";
declare warning : execution(@SomeAnnotation new(..)) : "execution(@SomeAnnotation ...new(..)";
declare warning : set(@SomeAnnotation * *) : "set(@SomeAnnotation...)";
declare warning : staticinitialization(@SomeAnnotation *) : "si(@SomeAnnotation...)";
// binding tests
before(SomeAnnotation sa) : execution(public ITDMe.new(String)) && @annotation(sa) {
print(sa);
}
after(SomeAnnotation sa) : execution(private ITDMe.new(int)) && @annotation(sa) {
print(sa);
}
before(SomeAnnotation sa) : execution(private ITDMe.new(int)) && @annotation(sa) {
print(sa);
}
after(SomeAnnotation sa) : execution(public void ITDMe.bar(int)) && @annotation(sa) {
print(sa);
MethodSignature sig = (MethodSignature) thisJoinPoint.getSignature();
Method meth = sig.getMethod();
Annotation[][] anns = meth.getParameterAnnotations();
System.out.println("method bar has " + anns.length + " params, first param annotation is "
+ anns[0][0].toString());
}
before(SomeAnnotation sa) : set(public Double ITDMe.d) && @annotation(sa) {
print(sa);
}
after(SomeAnnotation sa) : set(private Float ITDMe.f) && @annotation(sa) {
print(sa);
}
after(SomeAnnotation sa) returning : staticinitialization(@SomeAnnotation *) && @annotation(sa){
print(sa);
}
// now repeat for the @declared versions
before(SomeAnnotation sa) : execution(public ITDMe2.new(String)) && @annotation(sa) {
print(sa);
}
after(SomeAnnotation sa) : execution(private ITDMe2.new(int)) && @annotation(sa) {
print(sa);
}
before(SomeAnnotation sa) : execution(private ITDMe2.new(int)) && @annotation(sa) {
print(sa);
}
after(SomeAnnotation sa) : execution(public void ITDMe2.bar(int)) && @annotation(sa) {
print(sa);
MethodSignature sig = (MethodSignature) thisJoinPoint.getSignature();
Method meth = sig.getMethod();
Annotation[][] anns = meth.getParameterAnnotations();
System.out.println("method bar has " + anns.length + " params, first param annotation is "
+ anns[0][0].toString());
}
before(SomeAnnotation sa) : set(public Double ITDMe2.d) && @annotation(sa) {
print(sa);
}
after(SomeAnnotation sa) : set(private Float ITDMe2.f) && @annotation(sa) {
print(sa);
}
private void print(SomeAnnotation sa) {
System.out.println(sa.s() + " " + sa.clazz().getName());
}
}
@Retention(RetentionPolicy.RUNTIME)
@interface SomeAnnotation {
String s();
Class clazz();
}
@Retention(RetentionPolicy.RUNTIME)
@interface ParamAnnotation{
String value() default "";
}
class ITDMe {
}
class ITDMe2 {
}
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