CODEWITHSUNDEEP
javalogginglog4j
Nelson
Nelson

Reputation: 3232

How to change level of all Log4J 1.x loggers?

I want to be able to programmatically set the logging level for all loggers. This works:

    Logger log = Logger.getLogger(Example.class);
    LogManager.getLogger(Example.class).setLevel(Level.FATAL);
    log.debug("Should not see!");
    LogManager.getLogger(Example.class).setLevel(Level.DEBUG);
    log.debug("Should see!");

However this does not:

    Logger log = Logger.getLogger(Example.class);
    LogManager.getRootLogger().setLevel(Level.FATAL);
    log.debug("Should not see!");
    LogManager.getRootLogger().setLevel(Level.DEBUG);
    log.debug("Should see!");

Upvotes: 1

Views: 649

Answers (1)

Ashraff Ali Wahab
Ashraff Ali Wahab

Reputation: 1108

Get the logger names from LogManager.getCurrentLoggers() and then set the LogManager.getLogger("<name from loop>").setLevel(Level.FATAL); using loop.

When you are getting LogManager.getRootLogger() gets the root level logger. It is not going to affect all the individual configuration.

Upvotes: 2

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