log4cxx - Default Initialization Procedure - is implemented somewhere?

On the page 
http://logging.apache.org/log4cxx/manual/Introduction.html#DefaultInitializationProcedure
is written some algorithm. I tryed to find implementation of it, but failed.

Is this algorithm implemented somewhere or am I supposed to write it myself in 
every program which uses log4cxxx?

(I can write it myself, but I would rather use standartized way, than 
reimplement it in not so professional way I did just now.)


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