[logback-user] Adding a timestamp to a FileAppender file

[Ralph Goers]

I would suggest you create a Jira issue for this. I would suggest the 
ability to add a custom pattern resolver to the appender might be what 
you want. Before Logback I had written my own logging framework that 
supported this. I had considered making this request myself but so far I 
am not sure that we actually need it yet.  It could look something like:

<appender name="file" class="ch.qos.logback.core.FileAppender">
  <File 
resolver="com.mycorp.logback.MyPatternResolver">myjob.%{host}.%{datetime}.log</File>
  <Append>false</Append>
  <layout class="ch.qos.logback.classic.PatternLayout">
    <Pattern>%msg%n</Pattern>
  </layout>
</appender>

The Resolver interface would have a single method that looks like   
String resolve(String pattern)

Ralph

nicolas.giraud at bnf.fr wrote:
>
> Thanks for the answer, Hannes.
>
> However a time-based rollover is not what I am looking for. My program 
> executes one job at a time. There are several jobs  whose duration 
> varies from a couple of seconds to several hours.  I simply want to 
> log the results of a job in a single file, and have the filename 
> contain a timestamp.
>
> I will have to do this programmatically obviously, but I'm having 
> trouble setting up the file appender programmatically.
>
> Regards,
> Nicolas
>
>
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