package ch.qos.logback.classic.util;
import ch.qos.logback.classic.LoggerContext;
import ch.qos.logback.core.status.OnConsoleStatusListener;
import ch.qos.logback.core.status.StatusListener;
import ch.qos.logback.core.util.OptionHelper;
public class StatusListenerConfigHelper {
static void installIfAsked(LoggerContext loggerContext) {
String slClass = OptionHelper.getSystemProperty(
ContextInitializer.STATUS_LISTENER_CLASS);
if (!OptionHelper.isEmpty(slClass)) {
addStatusListener(loggerContext, slClass);
}
}
static void addStatusListener(LoggerContext loggerContext,
String listenerClass) {
StatusListener listener = null;
if (ContextInitializer.SYSOUT.equalsIgnoreCase(listenerClass)) {
listener = new OnConsoleStatusListener();
} else {
try {
listener = (StatusListener) OptionHelper.instantiateByClassName(
listenerClass, StatusListener.class, loggerContext);
} catch (Exception e) {
// printing on the console is the best we can do
e.printStackTrace();
}
}
if (listener != null) {
loggerContext.getStatusManager().add(listener);
}
}
}