Logback - How to write any log level by specifying it on log statement?

I'm Writing a utility for logging using logback with slf4j, Since i'm new to logback i need to know if i can write logging statement with user defined log level from calling class something like we use in java logging as

 LOGGER.log(Level.FINEST,"Message"); 

So is it possible to implement that in logback. I came across logback API and found something like LOGGER.isEnabledFor(loggerLevel). Can that be used for mentioned purpose and how to implement it.

import org.slf4j.LoggerFactory; import ch.qos.logback.classic.Level; import ch.qos.logback.classic.Logger; public class LogUtil { protected static final Logger LOGGER = (Logger)LoggerFactory.getLogger("LOGUTIL"); public void logMethodEntrance(String className,String methodName,Level loggerLevel){ if(LOGGER.isEnabledFor(loggerLevel)){ //Something like below? //LOGGER.log(loggerLevel,"Entering Method-"+methodName+" of class - "+className); } } } 

And i tried the log statements and i'm getting below error

public void logMethodEntrance(String className,String methodName,Level loggerLevel){ if(LOGGER.isEnabledFor(loggerLevel)){ //LOGGER.debug("Entering Method-"+methodName+" of class - "+className); LOGGER.log(null, null,loggerLevel.toInt(), "Just Message", null, null); } } 

Error:

Exception in thread "main" java.lang.IllegalArgumentException: 20000 not a valid level value at ch.qos.logback.classic.Level.fromLocationAwareLoggerInteger(Level.java:267) at ch.qos.logback.classic.Logger.log(Logger.java:787) at com.vsi.commonutil.logging.LogUtil.logMethodEntrance(LogUtil.java:29) at com.vsi.commonutil.test.LogUtilTest.testforlogging(LogUtilTest.java:22) at com.vsi.commonutil.test.LogUtilTest.main(LogUtilTest.java:43)