How to use

metric

method

in

org.apache.brooklyn.util.text.ByteSizeStrings

/** Returns a size string using metric suffixes from {@link ByteSizeStrings#metric()}, e.g. 23.5MB */
public static String makeSizeString(long sizeInBytes) {
  return ByteSizeStrings.metric().makeSizeString(sizeInBytes);
}

  @Override
  public void formatTo(Formatter formatter, int flags, int width, int precision) {
    boolean alternate = (flags & FormattableFlags.ALTERNATE) == FormattableFlags.ALTERNATE;
    ByteSizeStrings strings = alternate ? ByteSizeStrings.metric() : ByteSizeStrings.this;
    if (precision != -1) {
      formatter.format("%s", strings.makeSizeString(bytes, precision));
    } else {
      formatter.format("%s", strings.makeSizeString(bytes));
    }
  }
};

/** Setup renderer hints for the MXBean attributes. */
public static void init() {
  if (initialized.getAndSet(true)) return;
  RendererHints.register(UsesJavaMXBeans.USED_HEAP_MEMORY, RendererHints.displayValue(ByteSizeStrings.metric()));
  RendererHints.register(UsesJavaMXBeans.INIT_HEAP_MEMORY, RendererHints.displayValue(ByteSizeStrings.metric()));
  RendererHints.register(UsesJavaMXBeans.MAX_HEAP_MEMORY, RendererHints.displayValue(ByteSizeStrings.metric()));
  RendererHints.register(UsesJavaMXBeans.COMMITTED_HEAP_MEMORY, RendererHints.displayValue(ByteSizeStrings.metric()));
  RendererHints.register(UsesJavaMXBeans.NON_HEAP_MEMORY_USAGE, RendererHints.displayValue(ByteSizeStrings.metric()));
  RendererHints.register(UsesJavaMXBeans.TOTAL_PHYSICAL_MEMORY_SIZE, RendererHints.displayValue(ByteSizeStrings.metric()));
  RendererHints.register(UsesJavaMXBeans.FREE_PHYSICAL_MEMORY_SIZE, RendererHints.displayValue(ByteSizeStrings.metric()));
  RendererHints.register(UsesJavaMXBeans.START_TIME, RendererHints.displayValue(Time.toDateString()));
  RendererHints.register(UsesJavaMXBeans.UP_TIME, RendererHints.displayValue(Duration.millisToStringRounded()));
  RendererHints.register(UsesJavaMXBeans.PROCESS_CPU_TIME, RendererHints.displayValue(Duration.millisToStringRounded()));
  RendererHints.register(UsesJavaMXBeans.PROCESS_CPU_TIME_FRACTION_LAST, RendererHints.displayValue(MathFunctions.percent(4)));
  RendererHints.register(UsesJavaMXBeans.PROCESS_CPU_TIME_FRACTION_IN_WINDOW, RendererHints.displayValue(MathFunctions.percent(4)));
}

/**
 * Setup renderer hints.
 */
public static void init() {
  if (initialized.getAndSet(true)) return;
  final Function<Double, Long> longValue = new Function<Double, Long>() {
    @Override
    public Long apply(@Nullable Double input) {
      if (input == null) return null;
      return input.longValue();
    }
  };
  RendererHints.register(CPU_USAGE, RendererHints.displayValue(MathFunctions.percent(2)));
  RendererHints.register(AVERAGE_CPU_USAGE, RendererHints.displayValue(MathFunctions.percent(2)));
  RendererHints.register(USED_MEMORY_PERCENT, RendererHints.displayValue(MathFunctions.percent(2)));
  RendererHints.register(AVERAGE_USED_MEMORY_PERCENT, RendererHints.displayValue(MathFunctions.percent(2)));
  RendererHints.register(FREE_MEMORY, RendererHints.displayValue(Functionals.chain(MathFunctions.times(1000L), ByteSizeStrings.metric())));
  RendererHints.register(TOTAL_MEMORY, RendererHints.displayValue(Functionals.chain(MathFunctions.times(1000L), ByteSizeStrings.metric())));
  RendererHints.register(USED_MEMORY, RendererHints.displayValue(Functionals.chain(MathFunctions.times(1000L), ByteSizeStrings.metric())));
  RendererHints.register(USED_MEMORY_DELTA_PER_SECOND_LAST, RendererHints.displayValue(Functionals.chain(longValue, ByteSizeStrings.metric())));
  RendererHints.register(USED_MEMORY_DELTA_PER_SECOND_IN_WINDOW, RendererHints.displayValue(Functionals.chain(longValue, ByteSizeStrings.metric())));
}

assertEquals(ByteSizeStrings.parse("1k", "m", ByteSizeStrings.metric()), 1000);

long upDownTimeMillisPerIter = sF.elapsed(TimeUnit.MILLISECONDS)/NUM_ITERS;
log.info(JavaClassNames.niceClassAndMethod()+" PER ITER (over "+NUM_ITERS+"): "+
    ByteSizeStrings.metric().makeSizeString( memLeakBytesPerIter )+", "+
    Duration.millis(upDownTimeMillisPerIter)+" per up+down, "+
    Duration.millis(sG.elapsed(TimeUnit.MILLISECONDS)/NUM_ITERS)+" per up+down+gc"