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How to properly initialize the slf4j logger (using log4j) in abstract classes / for inheritance

In my project, I have a FrameProducertop-level abstract class . I added slf4j logger at this level, so every inheriting class already has it. Here is the code:

public abstract class FrameProducer extends Observable {

    protected final Logger logger = LoggerFactory.getLogger(this.getClass());

    protected BufferedImage frame;

    public BufferedImage getFrame() {
        return frame;
    }

    public void fireEvent() {
        logger.debug("Firing event. Implementing class: {}", this.getClass());
        setChanged();
        notifyObservers();
    }
}

There are also two inheriting classes: CameraFrameGrabberand GrayscaleFilter. However, when a method fireEvent()is called from CameraFrameGrabberor GrayscaleFilter, the message is logged at the level FrameProducer. Here's the log, for clarity:

FrameProducer.fireEvent - Firing event. Implementing class: class com.ofj.frameaccess.CameraFrameGrabber
FrameProducer.fireEvent - Firing event. Implementing class: class com.ofj.frameaccess.GrayscaleFilter

Is it possible to initialize the registrar in FrameProducersuch a way that everything is registered at the most specialized level in my class hierarchy?

Thanks for any help.

Edit: My log4j.properties options are as follows:

log4j.rootCategory=TRACE, CONSOLE
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.Threshold=DEBUG
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%C{1}.%M - %m%n
+5
2

, skaffman. log4j.properties ( PatternLayout:

log4j.rootCategory=TRACE, CONSOLE
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.Threshold=DEBUG
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%-6r [%15.15t] %-5p %30.30c %x - %m%n

... .

0

-, . , , , , , , .

, , ( ), :

private final Logger logger = LoggerFactory.getLogger(getClass());

- :

private static final Logger logger = LoggerFactory.getLogger(MyAbstractClass.class);

.

  • no static, - .
  • getClass()
+7

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