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Log levels and checking

Each logger has a minimum logging level per sink, set by configuration. The minimum value of the per-sink levels is the minimum level for the logger, which can be checked at any time.

Rules​

  • If a log request’s level is less than the minimum for the logger that created it, no log event is created and emitted.
  • When a log event is emitted, it is dispatched to at least one sink.

Code​

Applicable to both Klogger and NoCoLogger.

  • trace(), debug() etc. functions are shims for log() with a specified value of Level.
  • isTraceEnabled(), isDebugEnabled() etc. functions are shims for isLevelEnabled() with a specified value of Level.
  • log() function with value arguments: only emits an event if isLevelEnabled() for the requested level is true.
  • log() function with lambda argument: only calls the lambda and emits an event if isLevelEnabled() for the requested level is true.