Try this:
*// capture any class or method or constructor
pointcut exceptionTracing(): execution(* *.*(..)) &&
!within(ExceptionAspect);
after() throwing(Exception ex) : exceptionTracing()
{
Signature sig = thisJoinPointStaticPart.getSignature();
StringBuffer erro = new StringBuffer();
erro.append("Erro: [ ")
.append(sig.getDeclaringType().getName())
.append(" . ");
log.error(erro.toString(), ex); // call Log4J
System.err.println(erro.toString());
ex.printStackTrace(System.err);
}
*
On Nov 8, 2007 9:43 AM, Andy Clement <[EMAIL PROTECTED]> wrote:
> getDeclaringType() only returns you simply the type and not the
> instance. But you can use:
>
> before(): someOldPointcut() {
> Object theTarget = thisJoinPoint.getTarget();// to get the object
> instance
> }
>
> Or, if they all implement takeDown() then I presume that is in some
> interface somewhere?
>
> interface TakeDownable {
> public void takeDown();
> }
>
> then I can write the pointcut in terms of that:
>
> pointcut p(TakeDownable td): call(* *(..)) && target(td);
>
> before(TakeDownable td): p(td) {
> td.takeDown();
> }
>
> Andy.
>
>
>
> On 08/11/2007, Rob Austin <[EMAIL PROTECTED]> wrote:
> > Andy,
> >
> > Another question off the back of this one it you don't mind.
> >
> > Is it possible to use getSignature().getDeclaringType() to
> > get a reference to the object to which it refers?
> >
> > Essentially, I'm writing some code which monitors certain obects. If a
> > method is called on one of these objects by some code which is not
> > authorised to do so I want to terminate the object before it is
> compromised,
> > so I want to get a reference to it to call its takeDown() method. The
> > objects may be of different types but they all have a takeDown() method,
> but
> > as I don't know the target type in advance, I can't use && target() I
> > presume.
> >
> >
> > Really appreciate your help
> >
> > Thanks
> >
> > Rob
> >
> >
> >
> >
> >
> >
> > On 07/11/2007, Rob Austin <[EMAIL PROTECTED]> wrote:
> > > That's marvellous Andy, thanks so much
> > >
> > >
> > >
> > > On 07/11/2007, Andy Clement <[EMAIL PROTECTED] > wrote:
> > > > Your pointcut will catch static method calls. At the call to static
> > > > method there is no target instance, and so thisJoinPoint.getTarget()
> > > > will return NULL, hence the NPE. If you want the classname of the
> > > > target, use getSignature().getDeclaringType()
> > > >
> > > > You should write !within(mypackage.bookTrading.*) and not
> > > > within(!mypackage.bookTrading.*) as the latter will not
> > exclude inner
> > > > types and it looks like you have one of those because of the
> access$0
> > > > shown in your output. I imagine you really also want to exclude
> > > > subtypes too, so it would be !within(mypackage.bookTrading..*)
> > > >
> > > > cheers,
> > > > Andy.
> > > >
> > > >
> > > > On 06/11/2007, Rob Austin <[EMAIL PROTECTED]> wrote:
> > > > >
> > > > > Hi,
> > > > >
> > > > > I want to write an aspect that logs any call to my Package
> (myPackage)
> > from
> > > > > outside of it - those I don't expect in other words.
> > > > >
> > > > > I'm facing the following problems with my newbie code:
> > > > > 1. I thought I could restrict my advice to calls made outside of
> my
> > > > > package by using within(! myPackage.bookTrading.* ) , but as you
> can
> > see in
> > > > > the output below, it still seems to include calls made from within
> my
> > > > > package.
> > > > >
> > > > > 2. Where a call is to a method contained in a jar rather than in
> code
> > for
> > > > > which the source is included in the project, thisJoinPoint
> > > > > .getTarget().getClass errors out with a nasty message, something
> along
> > the
> > > > > lines of "Attempt to send a message to a non object value". I
> assume
> > that
> > > > > this behaviour would be expected, but any ideas how I can trap for
> > this
> > > > > rather than letting an error be raised.
> > > > >
> > > > > Really appreciate any help,
> > > > >
> > > > > Thanks
> > > > >
> > > > > Rob
> > > > >
> > > > >
> > > > >
> > > > > public aspect WatchMethodCalls {
> > > > >
> > > > >
> > > > > pointcut WatchAll(): call(* myPackage ..*.*(..))
> > > > > && within(! myPackage.bookTrading.*) && within(!
> WatchMethodCalls);
> > > > >
> > > > >
> > > > >
> > > > > before( ) : WatchAll( )
> > > > >
> > > > > {
> > > > > System.out.println("thisJoinPoint.getTarget ().getSignature()
> "
> > > > > +thisJoinPointStaticPart .getSignature());
> > > > > System.out.println("thisJoinPoint.getTarget
> ().getSourceLocation()
> > " +
> > > > > thisJoinPointStaticPart .getSourceLocation());
> > > > > System.out.println("thisJoinPoint.getTarget().getClass() " +
> > > > > thisJoinPoint .getTarget().getClass());
> > > > >
> > > > >
> > > > >
> > > > > }
> > > > >
> > > > > Sample output;
> > > > >
> > > > > thisJoinPoint.getTarget ().getSignature() Vector
> > > > >
> > myPackage.bookTrading.BookBuyerAgentMalicious.access$0
> > (BookBuyerAgentMalicious)
> > > > > thisJoinPoint.getTarget().getSourceLocation()
> > > > > BookBuyerAgentMalicious.java:288
> > > > >
> > > > > Error occurred in WatchAll: java.lang.NullPointerException
> > > > > at
> > > > >
> >
> apoptotic.BlockMethodCalls.ajc$before$apoptotic_BlockMethodCalls$1$2e232b3e
> > > > > (BlockMethodCalls.aj:22)
> > > > > at
> > > > >
> > apoptotic.bookTrading.BookBuyerAgentMalicious$BookNegotiator.action
> > (BookBuyerAgentMalicious.java:288)
> > > > > at
> > > > >
> > jade.core.behaviours.Behaviour.actionWrapper(Behaviour.java
> > :340)
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > _______________________________________________
> > > > > aspectj-users mailing list
> > > > > [email protected]
> > > > >
> > https://dev.eclipse.org/mailman/listinfo/aspectj-users
> > > > >
> > > > >
> > > > _______________________________________________
> > > > aspectj-users mailing list
> > > > [email protected]
> > > > https://dev.eclipse.org/mailman/listinfo/aspectj-users
> > > >
> > >
> > >
> >
> >
> > _______________________________________________
> > aspectj-users mailing list
> > [email protected]
> > https://dev.eclipse.org/mailman/listinfo/aspectj-users
> >
> >
> _______________________________________________
> aspectj-users mailing list
> [email protected]
> https://dev.eclipse.org/mailman/listinfo/aspectj-users
>
--
raphael milani
:=]
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