Ant

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On 4/18/07, ant elder <[EMAIL PROTECTED]> wrote:

On 4/17/07, Jean-Sebastien Delfino <[EMAIL PROTECTED]> wrote:

<snip/>

I found our current Monitor stuff difficult to follow as well. I suggest
> that we start a new discussion thread to discuss monitoring in general,
> and try to come up with something that will be more usable and easier to
> adopt through our whole runtime.


Starting the new thread for you...

I agree we should improve monitoring and logging in the runtime.

I've used AOP before for this type of thing, its cool, but it does add yet
another new thing to know about which could be off putting for new
developers. How about just using one of the existing logging packages that
most people are already completely familiar with? Commons Logging looks
like
its coming to its end, no one really likes java.util.logging, so how about
SLF4J, its really easy and nice to use?


Simple is good. I've not done much with Aspects but we could really do with
keeping down the complexity quotient I think. I'm keen that whatever
information we put out can be transported to whatever management solution is
used in the future so having a facade for accepting logged information
sounds good. We can start off with a simple console logger and migrate to
more complex distributed managment/logging solutions if required in the
future.

I also think exception handling could be improved, I don't find the current
exception formatter design easy to use, and most times stack traces end up
missing the important bit of information you need. How about just using
the
traditional way of  putting everything in the exception message and  using
properties files to allow for I18N?


I agree that I find the current exception messages lacking but I have to
admit to not having studied how they are implemented so I'll go take a look
and come back on this one.

One thing I've wondered about was having a release specifically targeting
these RAS type features. So once we've worked out the strategy for
logging,
exceptions, internationalization etc we have a release where a big focus
is
on implementing/fixing/testing all these RAS things.


+1 I'm stringly in favour of this and would very much like to help out. Even
if it's not all of the community if a few of us can take a sweep through the
code and get the level of error reporting/logging up a notch then that's
going to improve our usability no end. People don't expect the software to
be perfect but if it fails and doesn't give any clues in lots of cases that
that gives a bad impression. This is particulalry the case when the failure
is down to user input. So we need to be really careful about loading the
assembly model and loading extensions to report any detected inconsistencies
in a easy to understand manner.

  ...ant


Simon

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