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Re: [aspectj-users] (very newbie question) Logging exceptions
|
Hi -
Glad things are (mostly) working.
> What am I missing?
>
> File file = new File("c:/tmp/non-existen.txt");
This is a constructor-call, not method-execution, and the
method-execution join point is not in the control of ajc
since you're not weaving or compiling the File class.
The Semantics appendix explains join points/pointcuts well,
and the implementation appendix explains what ajc needs
in order to implement each join point.
Wes
On Wed, 15 Mar 2006 11:04:42 +0100
"Kees de Kooter" <kdekooter@xxxxxxxxx> wrote:
> Thanks a lot Wes!
>
> I wrote some test code. If I throw an Exception it is
> logged nicely.
> If I cause a FileNotFoundException the aspect does not
> pick this up.
> What am I missing?
>
> File file = new File("c:/tmp/non-existen.txt");
>
> try {
> FileInputStream fileInputStream = new
> FileInputStream(file);
> } catch (FileNotFoundException e) {
>
> On 3/14/06, Wes Isberg <wes@xxxxxxxxxxxxxx> wrote:
> > This prints the exception as it is thrown from any
> method-
> > execution:
> >
> > aspect A {
> > pointcut pc() : execution(* *(..));
> > after() throwing (Throwable t) : pc() {
> > t.printStackTrace();
> > }
> > }
> >
> > It will print the same exception for each
> > dynamically-enclosing method, so you'd want to skip
> > duplicates (and probably narrow the pointcut a bit).
> >
> > The AOP@Work article on library aspects has 31 ready-to
> use
> > aspects. Take a look at "ObserveThrown" or
> > "ObserveThrownContext."
> >
>
http://www-128.ibm.com/developerworks/java/library/j-aopwork14/
> >
> > Wes
> >
> >
> >
> > (And probably in many others - google?)
> >
> > Wes
> >
> >
> > On Tue, 14 Mar 2006 13:09:06 +0100
> > "Kees de Kooter" <kdekooter@xxxxxxxxx> wrote:
> > > This question has propably been posted a million
> times
> > > before.
> > > Unfortunately I cannot find a working solution
> anywhere.
> > >
> > > I want to get rid of all the log.error lines in my
> code,
> > > so I want to
> > > write an aspect that logs exceptions when they occur,
> or
> > > when the
> > > catch statement is entered and log the exception
> message
> > > and the line
> > > and class in which it occurred.
> > >
> > > --
> > > Thanks,
> > > Kees de Kooter
> > > http://www.boplicity.net
> > >
> > >
> > > --
> > > Cheers,
> > > Kees de Kooter
> > > http://www.boplicity.nl
> > > _______________________________________________
> > > aspectj-users mailing list
> > > aspectj-users@xxxxxxxxxxx
> > >
> https://dev.eclipse.org/mailman/listinfo/aspectj-users
> >
> > _______________________________________________
> > aspectj-users mailing list
> > aspectj-users@xxxxxxxxxxx
> > https://dev.eclipse.org/mailman/listinfo/aspectj-users
> >
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