[logback-user] Logs targeting Excel Pivot Tables
Thorbjørn Ravn Andersen
thunderaxiom at hotmail.com
Tue Apr 2 09:59:09 CEST 2013
I want to create a log file which is not directly intended to be readable by
humans but to use with Pivot Tables in Excel to generate reports (e.g. over
http requests and their duration spread over the day for several months,
that kind of thing).
I was wondering what the best approach for doing that would be.
My guess would be a tab-separated file (to allow Excel to read it in as a
CSV-file), with the first field being the timestamp in an Excel compatible
form (e.g. a number formatted as a timestamp), and the remaining fields the
individual items I need to analyze. (This is what I generate right now
using ad-hoc Perl)
(We can calculate on that 99.99% of the time that the application will exit
with System.exit(0) in my main method, so it is not super important with
having a solution robust against e.g. OutOfMemoryError, but I would like one
that does not build a large data structure in memory like using JExcel to
generate a spread sheet on the fly).
Anyone who has experimented with this and have experiences to share?
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