<configuration>

	<appender name="FILE" 
            class="ch.qos.logback.core.FileAppender">
    <file>foo.log</file>
    <encoder>
      <Pattern>
        %date %level [%thread] %logger{10} [%file : %line] %msg%n
      </Pattern>
    </encoder>
	</appender>

	<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
		<encoder>
			<Pattern>%msg%n</Pattern>
		</encoder>
	</appender>

	<logger name="chapters.configuration.Foo" additivity="false">
		<appender-ref ref="FILE" />
	</logger>

	<root level="debug">
		<appender-ref ref="STDOUT" />
	</root>
</configuration>