On 21.12.2011 11:13, Thomas Corte wrote:
That said, it could be argued that using the file name pattern for
specifying both, file names and the rollover period, is somewhat
convenient, but violates the principle of "separation of concerns" to
some extent. A dedicated (optional) property to specify the rollover
period separately may be the best solution.
But of course it's your call.
Inferring the period from the file name pattern is less error
prone. It is impossible to specify a shorter period than what the
pattern can cater for. For example, when the period and the period are
separate, it is possible to specify daily rollover for the pattern
"%d{yyyy}.log" which would cause log archives to be clobbered on a
daily basis. Inferring the period from the pattern avoid this problem.
On the other hand, separation allows for patterns with better
prevision. For example, for a daily rollover period, you could have
%d{yyyy-MM-dd'T'HH_mm} as the pattern. I don't see such flexibility as
being useful. As such, safety trumps flexibility in this case.
--
Ceki
http://twitter.com/#!/ceki
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