[logback-user] Multiple log files to single archive

PaSik tompasik at poczta.fm
Wed Oct 2 09:35:35 CEST 2013

I wasn't aware that Java doesn't provide any API to modify ZIP archives, that's a shake :-(
Do you think it would be doable if the request would be to create the zip archive once at the time the archive should roll. I guess the concept of rolling should be twofold - the log files roll independently of the archives and the archives roll every n archive rolls. The moment the archive rolls all logs should be archived. 
In case of %d{yyyy-MM-dd}.%i.zip pattern on every change of %i the next log would be created (no archiving happens at this time) and on the change of the date the rolling should happen as usual but also all the %i logs created on the previous date should be archived. 
Do you think I can create a ticket for such a feature?


David Roussel <nabble at diroussel.xsmail.com> wrote:

>No that is not supported. 
>Note that there are no java APIs (that I know of) for modifying a zip file. The only way to add a file to an existing zip file is to create a new zip file with the file added and then delete the old zip file. 
>> On 1 Oct 2013, at 09:57, PaSik <tompasik at poczta.fm> wrote:
>> Hi,
>> Could you please tell me whether it's possible to configure logback in such a way that multiple log files are compressed to a single, possibly already existing archive (existing because logback itself has already put some log Giles in this archive).
>> The current use case is that I'd like to have a RollingFileAppender with SizeAndTimeBasedFNATP with fileNamePattern=mylog-%d{yyyy-MM-dd}.%i.zip and have the log files archived to mylog-%d{yyyy-MM-dd}.zip.
>> Another use case would be an app that doesn't produce much logs and the loga would be produced to daily files but the archives would be monthly.
>> Thanks,
>> Tom
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