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Added possibility to change root logger level

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Alexander Sazonov 2022-03-30 22:40:51 +02:00
parent 0e3e9aaa99
commit b634f16481
1 changed files with 14 additions and 0 deletions
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src/main/java/ch/unibas/dmi/dbis/cs108/Spiellogikentwurf/LoggingExp.java
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@ -1,13 +1,27 @@
package ch.unibas.dmi.dbis.cs108.Spiellogikentwurf; package ch.unibas.dmi.dbis.cs108.Spiellogikentwurf;
import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.LogManager; import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger; import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.core.LoggerContext;
import org.apache.logging.log4j.core.config.Configuration;
import org.apache.logging.log4j.core.config.LoggerConfig;
public class LoggingExp { public class LoggingExp {
public static final Logger LOGGER = LogManager.getLogger(); public static final Logger LOGGER = LogManager.getLogger();
public static void main(String[] args) { public static void main(String[] args) {
/* change root logger level
* copied from https://stackoverflow.com/questions/23434252/ - I think it works, but I don't know why
*/
LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
Configuration config = ctx.getConfiguration();
LoggerConfig loggerConfig = config.getLoggerConfig(LogManager.ROOT_LOGGER_NAME);
loggerConfig.setLevel(Level.DEBUG); // change level here
ctx.updateLoggers(); // This causes all Loggers to refetch information from their LoggerConfig.
LOGGER.debug("I’m not printed by default "); LOGGER.debug("I’m not printed by default ");
LOGGER.error("An error , printed by default "); LOGGER.error("An error , printed by default ");
LOGGER.info("We can log variables with string concatenation :" + args); LOGGER.info("We can log variables with string concatenation :" + args);