logback-android/src/main/java/ch/qos/logback/classic/sift/ContextBasedDiscriminator.java
public String getDiscriminatingValue(ILoggingEvent event) {
    String contextName = event.getLoggerContextVO().getName();

    if (contextName == null) {
      return defaultValue;
    } else {
      return contextName;
    }
  }
public String getDiscriminatingValue(ILoggingEvent event) {
    String contextName = event.getLoggerContextVO().getName();

    if (contextName == null) {
      return defaultValue;
    } else {
      return contextName;
    }
  }
Return the name of the current context name as found in the logging event.