Is it possible, to configure Logging so that log4j messages from other modules, (like Hibernate) are shown directly in the Designer Runtime Log?

asked 02.10 at 04:21

peters's gravatar image

peters
17338
accept rate: 0%


Hi Peter

You could use the following Utility class to forward log message from one Logger to another one. E.e. from the Hibernate Logger to the Runtime Log (ivy.log)

import org.apache.log4j.AppenderSkeleton;
import org.apache.log4j.Priority;
import org.apache.log4j.spi.LoggingEvent;

import ch.ivyteam.ivy.environment.Ivy;
import ch.ivyteam.log.Logger;

public class LogUtil
{
    private static class ForwardAppender extends AppenderSkeleton 
    {
        public static final String NAME = ForwardAppender.class.getSimpleName();
        private Logger to;

        @SuppressWarnings("deprecation")
        public ForwardAppender(Logger to) {
            this.to = to;
            setName(NAME);
        }

        @Override
        public void close() {
        }

        @Override
        public boolean requiresLayout() {
            return false;
        }

        @Override
        protected void append(LoggingEvent event) {
            if (event.getThrowableInformation() != null)
            {
                to.log(event.getLevel(), event.getMessage(), event.getThrowableInformation().getThrowable());
            }
            else
            {
                to.log(event.getLevel(), event.getMessage());
            }
        }
    }

    public static void forwardLoggerToLogger(Logger from, Logger to)
    {
        if (from.getAppender(ForwardAppender.NAME)==null)
        {
            from.addAppender(new ForwardAppender(to));
        }
    }

    public static void main(String[] args) 
    {
        // Example 
        Logger hibernate = Logger.getLogger("org.hibernate");
        Logger runtimeLog = Ivy.log();
        forwardLoggerToLogger(hibernate, runtimeLog);
    }
}
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answered 02.10 at 09:38

Reto%20Weiss's gravatar image

Reto Weiss ♦♦
4.6k172551
accept rate: 75%

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Asked: 02.10 at 04:21

Seen: 134 times

Last updated: 02.10 at 09:38