The Code Dump » techie http://www.codelord.net A place a coder rants at... Fri, 27 Aug 2010 17:14:17 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 Logging with a Context: Users in Logback and Spring Security http://www.codelord.net/2010/08/27/logging-with-a-context-users-in-logback-and-spring-security/ http://www.codelord.net/2010/08/27/logging-with-a-context-users-in-logback-and-spring-security/#comments Fri, 27 Aug 2010 17:14:17 +0000 abyx http://www.codelord.net/?p=214 During this hectic time of starting an amazing adventure we find that along many of the big and important challenges we have there is an endless stream of small technical problems that solving poorly means a lot of time will go to waste.
One of these is proper logging in a way that will allow you see what your users are doing properly. Pretty quickly we came to the conclusion we want each log message to contain information about the user’s context, so we could easily understand what went wrong when a user tells us about it, and be able to track usage patterns.
The simplest thing we thought of was creating our own logger wrapper to insert our special values, but didn’t like the idea of having to write our own logging interface all over again. We’re using Logback and Spring Security, and after some googling and stackoverflowing I’ve found this solution:
We create simple Converters to insert the username and session ID to the logs, if present:

To make logback know where to find these converters, we add this little guy:

And now all that’s left are configuration changes. Make your pattern contain our cool new keys (“%user” and “%session”):

And this last part is needed for the session context thingie to work (as I was instructed on Stack Overflow). We need to add a certain listener to our web.xml:

And that’s about it. Happy logging!
    ]]>     http://www.codelord.net/2010/08/27/logging-with-a-context-users-in-logback-and-spring-security/feed/ 0     nose doesn’t discover tests on Solaris http://www.codelord.net/2010/03/03/nose-doesnt-discover-tests-on-solaris/ http://www.codelord.net/2010/03/03/nose-doesnt-discover-tests-on-solaris/#comments Wed, 03 Mar 2010 14:05:31 +0000 abyx http://www.codelord.net/?p=138 Note: this is a technical post, to help poor souls that google this :)

    When using nose on Solaris machines, simply running nosetests without specifying the file names will not work if you are the root user. To fix this, you must either not be root, or pass nose the argument --exe. That’s it.

    Gory details: by default, nose ignores executable files. Each file it encounters it checks with os.access(test_file, os.X_OK) to see if it’s executable. Problem is that Solaris’ access function always returns success for root, regardless of actual file permissions. This is discouraged by POSIX, but known behavior.

    I hope this saves someone the 3 hours it wasted for me :)



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