Re: [weld-dev] How to obtain logger in an interceptor?
Hoi Marcin!
You'd like to get an honest answer?
You know the old saying with the hammer? "If you have a hammer, every problem seems
to be a nail."
My suggestion: Don't use logger Injection for high performance debug logging at
least.
There is a lot code running inside the NormalScoped proxies MethodHandler, and you most
probably like to lose as little time as possible.
In my projects, I also started with that appproach, but after looking at the performance
(both with Weld and OWB) with my yourkit profiler, we decided to step back and use classic
private static Loggers.
Also, if you use jul.Logger, then you'd be doomed anyway. This beast is not
Serializable, and you also cannot make a Serializable subclass because it's final...
CDI is a huge boost in my projects, but there is no need to use it for each and every
instance creation :)
LieGrue,
strub
--- On Sat, 5/15/10, Marcin Zajączkowski <mszpak(a)wp.pl> wrote:
From: Marcin Zajączkowski <mszpak(a)wp.pl>
Subject: [weld-dev] How to obtain logger in an interceptor?
To: weld-dev(a)lists.jboss.org
Date: Saturday, May 15, 2010, 9:33 PM
Hi,
I am working on a Perf4j [1] integration with CDI/Weld
(sister project
to Seam-Perf4j [2] which offers integration with Seam
2.2.x). Perf4j
heavy uses logger for its performance statistics.
I would like to ask is there an unified way in CDI to
obtain a logger in
an interceptor?
In Seam 2.2.x I could get logger with:
org.jboss.seam.log.Logging.getLog(loggerName)
With Weld I don't want to get Weld logger directly - I
would like to be
compatible with other CDI implementations as well.
I have seen Weld's extension for logging, but it's rather
for injection
logger into "normal" beans, not to obtain it explicitly in
an
interceptor (it's a producer which calls
LoggerFactory.getLogger() from
slf4j which I can do directly).
Is it possible to get logger proper for CDI implementation
in context
which my code is running? Or the best solution would be to
use slf4j
logger with hope it is already using there?
[1] - http://perf4j.codehaus.org/
[2] - http://seam-perf4j.sourceforge.net/
Thanks for your comments
Marcin
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