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import org.aspectj.testing.Tester;
public class TryAndProceed {
public static void main(String[] args) {
new C().mNoThrows();
Tester.checkEqual(C.buf.toString(), "beforeAll:aroundAll:mNoThrows:");
C.buf = new StringBuffer();
A.aspectOf().allowThrowingAround = true;
try {
new C().mThrowsCheckedExc();
Tester.checkFailed("should have thrown RuntimeExc");
} catch (CheckedExc ce) {
Tester.checkFailed("should have thrown RuntimeExc not " + ce);
} catch (RuntimeException re) {
//System.out.println("caught " + re);
}
Tester.checkEqual(C.buf.toString(),
"beforeAll:aroundCheckedNoThrow:aroundAll:aroundCheckedThrow:aroundCaughtCE:");
C.buf = new StringBuffer();
A.aspectOf().allowThrowingBefore = true;
try {
new C().mThrowsCheckedExc();
Tester.checkFailed("should have thrown CheckedExc");
} catch (CheckedExc ce) {
//System.out.println("caught " + ce);
} catch (RuntimeException re) {
Tester.checkFailed("should have thrown CheckedExc not RuntimeExc");
}
Tester.checkEqual(C.buf.toString(), "beforeChecked:");
}
}
class C {
public static StringBuffer buf = new StringBuffer();
public void mThrowsCheckedExc() throws CheckedExc {
C.buf.append("mThrowsCheckedExc:");
}
public void mNoThrows() {
C.buf.append("mNoThrows:");
}
}
aspect A {
pointcut checkedCut(): call(void C.mThrowsCheckedExc());
pointcut uncheckedCut(): call(void C.mNoThrows());
pointcut allCut(): checkedCut() || uncheckedCut();
public static boolean allowThrowingBefore = false;
public static boolean allowThrowingAround = false;
before() throws CheckedExc: checkedCut() && if(allowThrowingBefore) {
C.buf.append("beforeChecked:");
throw new CheckedExc("from before");
}
before(): allCut() {
C.buf.append("beforeAll:");
}
Object around(): checkedCut() {
C.buf.append("aroundCheckedNoThrow:");
return proceed();
}
Object around(): allCut() {
C.buf.append("aroundAll:");
try {
return proceed();
} catch (CheckedExc ce) {
C.buf.append("aroundCaughtCE:");
throw new RuntimeException("hand-softening CheckedExc");
}
}
Object around() throws CheckedExc: checkedCut() && if(allowThrowingAround) {
C.buf.append("aroundCheckedThrow:");
throw new CheckedExc("from around");
}
}
class CheckedExc extends Exception {
public CheckedExc(String m) { super(m); }
}
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