I'm using Spring AspectJ for logging method execution statistics, however, I want to exclude some classes and methods from this without changing the pointcut expression.
To exclude certain methods I created a custom annotation which I use to filter out. However I'm unable to do the same with classes.
Here is my aspect definition -
@Around("execution(* com.foo.bar.web.controller.*.*(..)) "
+ "&& !@annotation(com.foo.bar.util.NoLogging)")
public Object log(ProceedingJoinPoint proceedingJoinPoint) throws Throwable {
// logging logic here
}
NoLogging
is my custom annotation for excluding methods.
So how can I filter out certain classes without changing pointcut expression and without adding new advisors?
Okay so I found the solution - use @target
PCD (pointcut designators) to filter out classes with specific annotation. In this case I already have the @NoLogging
annotation so I can use that. The updated pointcut expression will then become as follows -
@Around("execution(* com.foo.bar.web.controller.*.*(..)) "
+ "&& !@annotation(com.foo.bar.util.NoLogging)"
+ "&& !@target(com.foo.bar.util.NoLogging)")
public Object log(ProceedingJoinPoint proceedingJoinPoint) throws Throwable {
// logging logic here
}
Explanation -
execution(* com.foo.bar.web.controller.*.*(..))
- all methods of all classes in c.f.b.w.controller
package
"&& !@annotation(com.foo.bar.util.NoLogging)"
- which do NOT have @NoLogging
annotation on them
"&& !@target(com.foo.bar.util.NoLogging)"
- and whose class also does NOT have @NoLogging
annotation.
So now I simply have to add @NoLogging
annotation to any class whose methods I want to be excluded from the aspect.
More PCD can be found in Spring AOP documentation - http://docs.spring.io/spring/docs/current/spring-framework-reference/html/aop.html#aop-pointcuts-designators