public static String formatMetricByteSizeString(final Long streamSize, final boolean stripTrailingZeros) {
        if (streamSize == null) {
            return "";
        }
        return formatNumberString(streamSize, METRIC_BYTE_SIZE_DIVIDER, stripTrailingZeros);
    }
Return nice string like "25 B", "4 kB", "45 MB", etc.
stroom-legacy/stroom-legacy-model_6_1/src/main/java/stroom/legacy/model_6_1/ModelStringUtil.java