Hi David,

> This looks pretty interesting. I haven't looked at the progress
> of logging
> recently, I understand theres a Logger in jdk 1.4 and log4j has adapted in
> v 1.2 to be somewhat compatible. How does your stuff relate to these
> developments?

The main problem with the JDK 1.4 Log API was, last time I looked, that they
did not listen enough to Ceki Gulcu's (Log4J main contributor) critics and,
among other things, are keeping a strange set of Log Levels. For instance,
they have a lot of "debug" levels but only one error level, making no
distinction between a recoverable error and a fatal error.

This is quite strange considering that even the exception class hierarchy
makes this distinction, having an hierarchy of recoverable exceptions
descending from java.lang.Exception and another one of non-recoverable
exceptions descending from java.lang.Error. (java.lang.Error javadocs are
quite clear about this distinction.)

I think that Log4J has some adapters but I do not know them enough. Anyway,
what I am offering is something much lighter.

BTW, I also have a wrapper for the JDK 1.4 Log API.

> I'd like to take a look anyway. I guess since logging is used by all the
> packages we should put it in org.firebirdsql.logging?

Ok. I will create a package with that name and clean the code of any
dependencies.

> (I'm assuming you are
> offering to contribute a version of your code to firebird?)

Yes, of course. Although part of this came from Apache so, we should just
mention somewhere it uses code from Apache.


Have fun,
Paulo Gaspar

http://www.krankikom.de
http://www.ruhronline.de

> -----Original Message-----
> From: David Jencks [mailto:davidjencks@...]
> Sent: Monday, November 26, 2001 7:52 PM
> To: IB-Java@yahoogroups.com
> Subject: Re: [IB-Java] Re: client-java driver pretty slow
>
>
> This looks pretty interesting. I haven't looked at the progress
> of logging
> recently, I understand theres a Logger in jdk 1.4 and log4j has adapted in
> v 1.2 to be somewhat compatible. How does your stuff relate to these
> developments?
>
> I'd like to take a look anyway. I guess since logging is used by all the
> packages we should put it in org.firebirdsql.logging? (I'm
> assuming you are
> offering to contribute a version of your code to firebird?)
>
> Thanks!
>
> david jencks
>
> On 2001.11.26 13:33:52 -0500 Paulo Gaspar wrote:
> > I have a Common logger interface plus:
> > - Adapter for Apache Jakarta LogKit;
> > - Adpater for Log4J;
> > - Simple console log implementation;
> > (Realy easy to convert into a file implementation.)
> > - NoOp log implementation (does nothing for production).
> >
> >
> > The interface and the first 2 adapters are based on similar components
> > form the Apache Jakarta Avalon project, after stripping out the
> > Framework dependent bits.
> >
> > It is really simple and small code.
> >
> > Are you interested on this?
> > If yes, under what package name do you want it?
> >
> >
> > Have fun,
> > Paulo Gaspar
> >
> >
> > http://www.krankikom.de
> > http://www.ruhronline.de
> >
> >
> >
> > > -----Original Message-----
> > > From: Luca Lafranchi [mailto:luca.lafranchi@...]
> > > Sent: Monday, November 26, 2001 5:25 PM
> > >
> > >
> > > > 1. The amount of logging is still kind of ridiculous for production
> > > use. I
> > > > am very tempted to use log4j to make the amount of logging
> > configurable
> > > > while running. How much outcry would there be towards adding this
> > > library?
> > >
> > > No outcry at all (at least from me ;) ) But remember one thing: if
> > > this driver is to be used in an applet environment it should be fast
> > > downloadable: the more libraries you add, the bigger it becomes, the
> > > slower it will be to download. I don't use it in an applet
> > > environment, but others may want to...
> > >
> > >
> > > >
> > > > 2. To solve the "blob access outside of autocommit transaction"
> > problem,
> > > > how about putting each blob access in its own transaction (when
> > > autocommit
> > > > is happening)? I haven't looked but think this would be pretty easy
> > to
> > > > implement.
> > >
> > > Sorry, but I don't know much of driver implementation (shame
> on me!)...
> > >
> > > Good evening to all,
> > > Luca
> >
> >
> >
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