Package-specific logging levels for different Logback appenders

Question

I have this simple Logback config file, containing two appenders and some custom logging levels based on package name.

Answer 1

If you don't want to implement a custom filter, you can create a new appender with a fixed threshold (in you case INFO):

<appender name="INFO_CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
    ...
    <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
        <level>INFO</level>
    </filter>
</appender>

Then, for your custom logging levels add the INFO_CONSOLE and your FILE appender. The additivity="false" attribute prevents the logger from logging to the CONSOLE appender inherited from root.

<logger name="myapp.package1" additivity="false">
    <appender-ref ref="INFO_CONSOLE" />
    <appender-ref ref="FILE" />
</logger>

This should log DEBUG and above to the FILE and CONSOLE appenders, except for myapp.package1 which will only log INFO and above to CONSOLE.