CODEWITHSUNDEEP
javalog4j2
Russ Bateman
Russ Bateman

Reputation: 18643

Log4j version 2 set root logging level from Java?

In log4j version 2, how does one accomplish what previous versions of log4j did when called from Java code thus:

Logger.getRootLogger().setLevel( Level.TRACE );

I want, depending on a utility's command-line option, to turn on tracing.

Upvotes: 1

Views: 167

Answers (1)

Andy Dufresne
Andy Dufresne

Reputation: 6180

Try this

LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
Configuration config = ctx.getConfiguration();
LoggerConfig loggerConfig = config.getLoggerConfig(LogManager.ROOT_LOGGER_NAME); 
loggerConfig.setLevel(level);
ctx.updateLoggers();

Upvotes: 2

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