package ch.qos.logback.classic.pattern;
import java.util.Map;
import ch.qos.logback.classic.spi.LoggingEvent;
public class MDCConverter extends ClassicConverter {
String key;
public MDCConverter() {
}
@Override
public void start() {
key = getFirstOption();
super.start();
}
@Override
public void stop() {
key = null;
super.stop();
}
@Override
public String convert(Object event) {
LoggingEvent loggingEvent = (LoggingEvent) event;
Map<String, String> mdcPropertyMap = loggingEvent.getMDCPropertyMap();
if (mdcPropertyMap != null) {
return loggingEvent.getMDCPropertyMap().get(key);
} else {
return "";
}
}
}