Thank you very much Frank, but this class has to be "registered" somewhere?
2006/7/4, Frank Felix Debatin <[EMAIL PROTECTED]>:
Hi Cosma,
I worked around this by writing a simplistic log handler
that accepts JDK log messages and send them to commons
logging.
Feel free to use, below.
Frank Felix
_______________________
package whatever;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.logging.*;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* Writes JDK log messages to commons logging.
*/
public class JDKToCommonsLogging
{
static JDKLogHandler activeHandler;
/**
* Activates this feature.
*/
public static void activate()
{
try
{
Logger rootLogger =
LogManager.getLogManager().getLogger("");
// remove old handlers
for (Handler handler: rootLogger.getHandlers())
{
rootLogger.removeHandler(handler);
}
// add our own
activeHandler = new JDKLogHandler();
rootLogger.addHandler(activeHandler);
// done, let's check it right away!!!
Logger.getLogger(JDKToCommonsLogging.class.getName())
.info("activated: sending JDK log messages
to Commons Logging");
}
catch (Exception exc)
{
LogFactory.getLog(JDKToCommonsLogging.class)
.error("activation failed", exc);
}
}
public static void deactivate()
{
Logger rootLogger =
LogManager.getLogManager().getLogger("");
rootLogger.removeHandler(activeHandler);
Logger.getLogger(JDKToCommonsLogging.class.getName())
.info("dactivated");
}
private static class JDKLogHandler extends Handler
{
private Map<String, Log> cachedLogs = new
ConcurrentHashMap<String, Log>();
private Log getLog(String logName)
{
Log log = cachedLogs.get(logName);
if (log==null)
{
log = LogFactory.getLog(logName);
cachedLogs.put(logName, log);
}
return log;
}
@Override
public void publish(LogRecord record)
{
Log log = getLog(record.getLoggerName());
String message = record.getMessage();
Throwable exception = record.getThrown();
Level level = record.getLevel();
if (level==Level.SEVERE){
log.error(message, exception);
} else if (level==Level.WARNING) {
log.warn(message, exception);
} else if (level==Level.INFO) {
log.info(message, exception);
} else if (level==Level.CONFIG) {
log.debug(message, exception);
} else {
log.trace(message, exception);
}
}
@Override
public void flush()
{
// nothing to do
}
@Override
public void close()
{
// nothing to do
}
}
}
