I am experimenting with the Spring integration for Aspectj as documented
at
http://static.springsource.org/spring/docs/2.5.x/reference/aop.html#aop-
using-aspectj and have come across a problem.
If I alter the class invocation to override the method that I want to
instrument, the method is no longer detected.
So, my class is:
package foo;
public class EntitlementCalculationService {
public void calculateEntitlement() {
System.out.println("executing");
try {
Thread.sleep(200);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
My aspect is:
package foo;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.util.StopWatch;
@Aspect
public class ProfilingAspect {
@Around("methodsToBeProfiled()")
public void profile(ProceedingJoinPoint pjp) throws Throwable {
StopWatch sw = new StopWatch(getClass().getSimpleName());
try {
sw.start(pjp.getSignature().getName());
pjp.proceed();
} finally {
sw.stop();
System.out.println(sw.prettyPrint());
}
}
@Pointcut("execution(public * foo..*.*(..))")
public void methodsToBeProfiled(){}
}
And my code to test is:
package foo;
import org.springframework.context.ApplicationContext;
import
org.springframework.context.support.ClassPathXmlApplicationContext;
public final class Main {
public Main() {
ApplicationContext ctx = new
ClassPathXmlApplicationContext("/beans.xml", Main.class);
EntitlementCalculationService
entitlementCalculationService = new EntitlementCalculationService();{
entitlementCalculationService.calculateEntitlement();
}
public static void main(String[] args) {
new Main();
}
}
This gives the correct output:
[java] StopWatch 'ProfilingAspect': running time (millis) = 201
[java] -----------------------------------------
[java] ms % Task name
[java] -----------------------------------------
[java] 00201 100% calculateEntitlement
However, if I change the test code to override the calculateEntitlement
method like this:
package foo;
import org.springframework.context.ApplicationContext;
import
org.springframework.context.support.ClassPathXmlApplicationContext;
public final class Main {
public Main() {
ApplicationContext ctx = new
ClassPathXmlApplicationContext("/beans.xml", Main.class);
EntitlementCalculationService
entitlementCalculationService = new EntitlementCalculationService(){
@Override
public void calculateEntitlement() {
System.out.println("test1");
}
};
entitlementCalculationService.calculateEntitlement();
}
public static void main(String[] args) {
new Main();
}
}
The aspect fails to trigger.
Any ideas please?
TIA,
Adrian Smith
BT Group
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