Hello Martin, Could you please describe your use case in your terms without assuming the use of a ContextSelector? Martin Burchard wrote:
Hello,
I currently try to get SLF4J and Logback to work on IBM Lotus Domino Server 8.5. It's working. We need to do logging an a per Thread basis because we log into a Domino database. The Java object of a Domino database is based on a session object, and that can not exist over more then one thread. Okay, I created a simple ContextSelector:
package de.pentos.domino.logging;
import java.util.Arrays; import java.util.List;
import ch.qos.logback.classic.LoggerContext;
/** * @author Martin Burchard */ public class ContextSelector implements ch.qos.logback.classic.selector.ContextSelector {
private final LoggerContext defaultContext; private static final ThreadLocal<LoggerContext> threadLocal = new ThreadLocal<LoggerContext>();
public ContextSelector(final LoggerContext context) { defaultContext = context; }
public LoggerContext detachLoggerContext(final String loggerContextName) { return getLoggerContext(); }
public List<String> getContextNames() { return Arrays.asList(getLoggerContext().getName()); }
public LoggerContext getDefaultLoggerContext() { return defaultContext; }
public LoggerContext getLoggerContext() { LoggerContext lc = threadLocal.get(); if (lc == null) { threadLocal.set(new LoggerContext()); } return threadLocal.get(); }
public LoggerContext getLoggerContext(final String name) { if (getLoggerContext().getName().equals(name)) { return getLoggerContext(); } return null; }
}
As long as all Loggers are used like this:
private Logger log = LoggerFactory.getLogger(DemoWebService.class);
everything works fine, I get my logging.
But also this is a common way to get my Logger:
private static final Logger log = LoggerFactory.getLogger(DemoWebService.class);
Because for WebServices and Servlets the VM is not terminated and these Logger Instance will live a long time without ever get refreshed. After the first run I don't see logging any more.
How can I deal with external JARs like Apache HTTP Client and other that instantiate the loggers in a static way?
Regards, Martin
-- Ceki Gülcü Logback: The reliable, generic, fast and flexible logging framework for Java. http://logback.qos.ch