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RE: [aspectj-users] System.out.prinltn and advicing
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Take a look at the JavaDocs for Signature in the AspectJ runtime API:
http://www.eclipse.org/aspectj/doc/released/runtime-api/org/aspectj/lang/Sig
nature.html
You want thisJoinPointStaticPart.getSignature() to get the signature of the
call join point...
-----Original Message-----
From: aspectj-users-bounces@xxxxxxxxxxx
[mailto:aspectj-users-bounces@xxxxxxxxxxx] On Behalf Of
hermod.opstvedt@xxxxxxxxx
Sent: Monday, October 01, 2007 10:32 PM
To: aspectj-users@xxxxxxxxxxx
Subject: RE: [aspectj-users] System.out.prinltn and advicing
Hi
That did the trick - Next is to figure out how to get a hold of the name
of the caller to System.err and System.out.
Hermod
-----Original Message-----
From: aspectj-users-bounces@xxxxxxxxxxx
[mailto:aspectj-users-bounces@xxxxxxxxxxx] On Behalf Of Cristiano Breuel
Sent: Tuesday, October 02, 2007 3:38 AM
To: aspectj-users@xxxxxxxxxxx
Subject: Re: [aspectj-users] System.out.prinltn and advicing
Correction: I meant calls to PrintStream.println(), as you can see in
the pointcut.
On 10/1/07, Cristiano Breuel <cristiano.breuel@xxxxxxxxx> wrote:
> Hi,
>
> You can match calls to PrintWriter.println(), and then test whether
> the target of these calls is one of the instances in which you are
> interested, using the "if" pointcut at runtime. This seems to work:
>
> pointcut sysout(PrintStream p, Object obj) :
> call(void
PrintStream.println(..))
> && args(obj)
> && target(p)
> && if(p == System.out ||
p==System.err)
> && !within(SysOutLoggAspect);
>
> Regards,
>
> Cristiano
>
>
> On 10/1/07, hermod.opstvedt@xxxxxxxxx <hermod.opstvedt@xxxxxxxxx>
> wrote:
> >
> >
> > Hi
> >
> > Albeit no - It says it advises it, but when I run the tests, it
> > never enters the around advice
> >
> > Hermod
> >
> >
> > -----Original Message-----
> > From: aspectj-users-bounces@xxxxxxxxxxx
> > [mailto:aspectj-users-bounces@xxxxxxxxxxx] On Behalf Of
> > hermod.opstvedt@xxxxxxxxx
> > Sent: Monday, October 01, 2007 2:35 PM
> > To: aspectj-users@xxxxxxxxxxx
> > Subject: RE: [aspectj-users] System.out.prinltn and advicing
> >
> >
> > Hi
> >
> > I solved it :)
> >
> >
> >
> > pointcut systemOut() : get(* System.out);
> >
> > pointcut systemErr() : get(* System.err);
> >
> > pointcut sysout() : call(void *.println(..)) &&
> > !within(SysOutLoggAspect) &&
> > (cflow(systemOut()) || cflow(systemErr()));
> >
> > This seems to do the trick.
> >
> > Hermod
> >
> >
> > -----Original Message-----
> > From: aspectj-users-bounces@xxxxxxxxxxx
> > [mailto:aspectj-users-bounces@xxxxxxxxxxx] On Behalf Of
> > hermod.opstvedt@xxxxxxxxx
> > Sent: Monday, October 01, 2007 2:12 PM
> > To: aspectj-users@xxxxxxxxxxx
> > Subject: [aspectj-users] System.out.prinltn and advicing
> >
> >
> >
> > Hi
> >
> > I am trying to write an advice that traps calls to
> > System.out.println and System.err.println.
> >
> > If I write the advice as follows:
> >
> > public aspect SysOutLoggAspect {
> >
> > private final Logger LOGGER =
> > Logger.getLogger(SysOutLoggAspect.class);
> >
> > pointcut sysout() : (call(void System.out.println(..)) ||
> > call(void
> > System.err.println(..)) ) && !within(SysOutLoggAspect);
> >
> > void around(Object obj) : sysout() && args(obj) {
> > Level level = LOGGER.getEffectiveLevel();
> >
> > LOGGER.log(thisJoinPoint.getSignature().getDeclaringTypeName(),
> > level,
> > obj, null);
> > }
> > }
> >
> > It does not apply the advice, and issues a warning (no match for
> > this type
> > name: System.out [Xlint:invalidAbsoluteTypeName]) about it
> > in Eclipse (AJDT). If I however rewrite the pointcut to:
> >
> > pointcut sysout() : call(void *.println(..)) &&
> > !within(SysOutLoggAspect);
> >
> > It does apply the advice, but I have no garantee that the method
> > resides with System.out or System.err
> >
> > What is the best way to solve this?
> >
> > Hermod * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
> > * * * *
> > * * *
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This email with attachments is solely for the use of the individual or
entity to whom it is addressed. Please also be aware that the DnB NOR Group
cannot accept any payment orders or other legally binding correspondence
with
customers as a part of an email.
This email message has been virus checked by the anti virus programs used
in the DnB NOR Group.
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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