Re: [aspectj-users] How to remove java..* calls while using cflow() in a

[Andy Clement <andrew.clement@xxxxxxxxx>]

Hi,

> My objective is to find all the method calls which are in the control flow of HelloWorld.main(). But I'm not interested in the method calls related to any types in the package java.lang.*


>     pointcut methodTracker():
>          cflow(helloWorldTracker())
>          && !within(java.lang..*) && !within(HelloWorldTracer);

First, you need to scope your pointcut so that it catches calls and
not everything else (all the other join point kinds):


pointcut methodTracker():
  call(* *(..)) &&
  cflow(helloWorldTracker()) &&
  !within(java.lang..*) && !within(HelloWorldTracer);

Now you say you aren't interested in calls to java.lang, so lets add that:

pointcut methodTracker():
  call(* *(..)) &&
  !call(* java.lang..*(..)) &&
  cflow(helloWorldTracker()) &&
  !within(HelloWorldTracer);

That would seem to do what you want, calls to anything apart from
calls to java.lang.

Andy

On 18 October 2011 07:46, Dinesh Kumar <vdineshmenon@xxxxxxxxx> wrote:
> I have captured my problem in the following sample code. HelloWorld class is
> my source which needs to be instrumented by HelloWorldTracer aspect. My
> objective is to find all the method calls which are in the control flow of
> HelloWorld.main(). But I'm not interested in the method calls related to any
> types in the package java.lang.* (eg: java.lang.StringBuilder).
>
> package com.abc;
>
> public class HelloWorld {
>
>     public static void main(String args[]) {
>         StringBuilder str = new StringBuilder();
>         str.toString();
>         Sample.testMethod();
>     }
> }
>
> package com.abc;
>
> public class Sample {
>
>     public static void testMethod()
>     {
>         StringBuilder str = new StringBuilder();
>         str.toString();
>     }
>
> }
>
>
> public aspect HelloWorldTracer {
>
>     pointcut helloWorldTracker() :
>         execution(* com.sybase.HelloWorld.main(..)) && within(com.abc..*)
> &&  !within(HelloWorldTracer);
>
>     pointcut methodTracker():
>          cflow(helloWorldTracker())
>          && !within(java.lang..*) && !within(HelloWorldTracer);
>
>     Object around(): methodTracker()
>     {
>
>         System.out.println("Inside advice..." +
> thisJoinPointStaticPart.getSignature().toString() );
>         Object o = proceed();
>         return o;
>     }
>
> }
>
> Using the poincuts mentioned above the type StringBuilder is also getting
> adviced even though !within(java.lang..*) has been explicitly specified in
> methodTracker() pointcut. I also tried !within(java.lang.StringBuilder) and
> !executoin(String java.langStringBuilder.toString(..)) as well, but in vain.
> Any help in restricting the types from java.lang..* from getting adviced
> will be appreciated.
>
>
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