Interface MetricNumericConverter

  • All Known Implementing Classes:
    Metric, Metric$

    public interface MetricNumericConverter
    INTERNAL API

    Encapsulates evaluation of validity of metric values, conversion of an actual metric value to a Metric for consumption by subscribed cluster entities.

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      scala.util.Either<java.lang.Object,​java.lang.Object> convertNumber​(java.lang.Object from)
      May involve rounding or truncation.
      boolean defined​(java.lang.Number value)
      An defined value is neither negative nor NaN/Infinite: JMX system load average and max heap can be 'undefined' for certain OS, in which case a -1 is returned SIGAR combined CPU can occasionally return a NaN or Infinite (known bug)
    • Method Detail

      • convertNumber

        scala.util.Either<java.lang.Object,​java.lang.Object> convertNumber​(java.lang.Object from)
        May involve rounding or truncation.
        Parameters:
        from - (undocumented)
        Returns:
        (undocumented)
      • defined

        boolean defined​(java.lang.Number value)
        An defined value is neither negative nor NaN/Infinite:
        • JMX system load average and max heap can be 'undefined' for certain OS, in which case a -1 is returned
        • SIGAR combined CPU can occasionally return a NaN or Infinite (known bug)
        Parameters:
        value - (undocumented)
        Returns:
        (undocumented)