in twill-yarn/src/main/java/org/apache/twill/internal/ServiceMain.java [249:270]
protected String getLoggerLevel(Logger logger) {
if (logger instanceof ch.qos.logback.classic.Logger) {
return ((ch.qos.logback.classic.Logger) logger).getLevel().toString();
}
if (logger.isTraceEnabled()) {
return "TRACE";
}
if (logger.isDebugEnabled()) {
return "DEBUG";
}
if (logger.isInfoEnabled()) {
return "INFO";
}
if (logger.isWarnEnabled()) {
return "WARN";
}
if (logger.isErrorEnabled()) {
return "ERROR";
}
return "OFF";
}