[OT] Expression language logging?

[Andrew Robinson <an...@gmail.com>]

Instead of having to debug our project any manually inspecting value
expressions, is there a way to get debug level logging from EL? I am
currently using JSF RI 1.2 on OC4J.

I tried turning the java util logging and log4j logging to trace/all for
javax.el without any output.

It would be great to see a resolver print out each step of the evaluation.

Thanks,
Andrew

Re: [OT] Expression language logging?

[Simon Lessard <si...@gmail.com>]

Hello Andrew, I guess you could override Application to return a decorated
ExpressionFactory that in turn decorate the expression created to log their
value every now and then. Adding an EL resolver might also be an option.

Speaking of which, does anyone know an easy way to apply decorator pattern
on ELResolver for both JSF and JSP itself? For ELResolver, the only way I
see is to override Application but I see no way to hook all EL evaluation
for JSP...


Regards,

~ Simon

On Jan 15, 2008 11:15 AM, Andrew Robinson <an...@gmail.com>
wrote:

> Instead of having to debug our project any manually inspecting value
> expressions, is there a way to get debug level logging from EL? I am
> currently using JSF RI 1.2 on OC4J.
>
> I tried turning the java util logging and log4j logging to trace/all for
> javax.el without any output.
>
> It would be great to see a resolver print out each step of the evaluation.
>
> Thanks,
> Andrew
>

RE: [OT] Expression language logging?

["Jesse Alexander (KSFH 323)" <al...@credit-suisse.com>]

Hi
 
some classes request a logger with a "virtual" class/package name.
 
Maybe you should check the source of the EL whether it uses the real
classname to acquire the logger or a virtual one.
 
regards
Alexander


________________________________

	From: Andrew Robinson [mailto:andrew.rw.robinson@gmail.com] 
	Sent: Tuesday, January 15, 2008 5:15 PM
	To: MyFaces Discussion
	Subject: [OT] Expression language logging?
	
	
	Instead of having to debug our project any manually inspecting
value expressions, is there a way to get debug level logging from EL? I
am currently using JSF RI 1.2 on OC4J.
	
	I tried turning the java util logging and log4j logging to
trace/all for javax.el without any output.
	
	It would be great to see a resolver print out each step of the
evaluation.
	
	Thanks,
	Andrew