private Size parseSizeString(String sizeString) {
    if (sizeString.length() < 3) {
      throw new IllegalArgumentException("invalid size");
    }

    String valueString = sizeString.substring(0, sizeString.length() - 2);
    String unitSimpleName = sizeString.substring(sizeString.length() - 2);
    return new Size(Double.parseDouble(valueString), convertToUnit(unitSimpleName));
  }
Represents a value of a field. The type of a value is defined by {@link FieldValue}.
hbase-hbtop/src/main/java/org/apache/hadoop/hbase/hbtop/field/FieldValue.java