log4j2.xml

<?xml version="1.0" encoding="UTF-8"?>
<!-- PLEASE DON'T CHANGE 'strict="true"' !
      Setting it to false DOES NOT disable some additional verification;
      instead it changes the expected format of this configuration to "concise".
      But since it is not "concise", parsing the config fails
      (almost silently; Log4J2 status logging has to be activated to see it)
      and we end up without any appenders. Details:
      https://logging.apache.org/log4j/2.x/manual/configuration.html#ConfigurationSyntax -->
<Configuration strict="true">

  <Appenders>
    <Appender type="Console" name="SystemOut">
      <PatternLayout>
        <Pattern>%d{HH:mm:ss} %-5.5p [%-16.16t] %-40.40c - %m%n</Pattern>
      </PatternLayout>
    </Appender>

    <RollingRandomAccessFile name="FileOut" 
      fileName="log/viewer.log" 
      filePattern="log/viewer.log-%i.gz"
      immediateFlush="false">
      <Policies>
        <OnStartupTriggeringPolicy/>
        <SizeBasedTriggeringPolicy size="4096KB"/>
      </Policies>
      <PatternLayout>
        <Pattern>[%d{yyyy.MM.dd-HH:mm:ss}] [%-5.5p] [%-16.16t] %-50.50c - %m%n</Pattern>
      </PatternLayout>
      <DefaultRolloverStrategy max="6"/>
    </RollingRandomAccessFile>

  </Appenders>

  <Loggers>
    <Logger name="net.anwiba" level="debug" additivity="false">
      <AppenderRef ref="FileOut" level="debug" />
      <AppenderRef ref="SystemOut" level="info" />
    </Logger>
    <Logger name="net.anwiba.commons.http" level="debug" additivity="false">
      <AppenderRef ref="FileOut" level="debug" />
      <AppenderRef ref="SystemOut" level="info" />
    </Logger>
    <Logger name="net.anwiba.commons.jdbc" level="debug" additivity="false">
      <AppenderRef ref="FileOut" level="debug" />
      <AppenderRef ref="SystemOut" level="info" />
    </Logger>
    <Logger name="net.anwiba.database" level="debug" additivity="false">
      <AppenderRef ref="FileOut" level="debug" />
      <AppenderRef ref="SystemOut" level="info" />
    </Logger>
    <Logger name="net.anwiba.database.dbase" level="debug" additivity="false">
      <AppenderRef ref="FileOut" level="debug" />
      <AppenderRef ref="SystemOut" level="info" />
    </Logger>
    <Logger name="net.anwiba.database.resource.constraint" level="debug" additivity="false">
      <AppenderRef ref="FileOut" level="debug" />
      <AppenderRef ref="SystemOut" level="info" />
    </Logger>
    <Logger name="net.anwiba.spatial.shapefile.converter" level="error" additivity="false">
      <AppenderRef ref="FileOut" level="error" />
      <AppenderRef ref="SystemOut" level="error" />
    </Logger>
    <Logger name="net.anwiba.spatial.shapefile.io" level="error" additivity="false">
      <AppenderRef ref="FileOut" level="error" />
      <AppenderRef ref="SystemOut" level="error" />
    </Logger>
    <Logger name="net.anwiba.spatial.renderer.layer.GeometryStyleProvider" level="error" additivity="false">
      <AppenderRef ref="FileOut" level="error" />
      <AppenderRef ref="SystemOut" level="error" />
    </Logger>
    <Logger name="net.anwiba.spatial.swing.map.MapPanel" level="debug" additivity="false">
      <AppenderRef ref="FileOut" level="debug" />
      <AppenderRef ref="SystemOut" level="info" />
    </Logger>
    <Logger name="net.anwiba.spatial.renderer.layer.RasterLayerRenderer" level="debug" additivity="false">
      <AppenderRef ref="FileOut" level="debug" />
      <AppenderRef ref="SystemOut" level="info" />
    </Logger>

    <Logger name="org.apache.http" level="warn" additivity="false">
      <AppenderRef ref="FileOut"/>
      <AppenderRef ref="SystemOut"/>
    </Logger>
    <Logger name="org.apache.http.impl.execchain" level="warn" additivity="false">
      <AppenderRef ref="FileOut"/>
      <AppenderRef ref="SystemOut"/>
    </Logger>
    <Logger name="org.apache.http.wire" level="warn" additivity="false">
      <AppenderRef ref="FileOut"/>
      <AppenderRef ref="SystemOut"/>
    </Logger>
    <Logger name="org.apache.http.http.headers" level="warn" additivity="false">
      <AppenderRef ref="FileOut"/>
      <AppenderRef ref="SystemOut"/>
    </Logger>

    <Root level="warn">
      <AppenderRef ref="FileOut"/>
    </Root>

  </Loggers>
</Configuration>