class BSON::Binary

def from_uuid_old_to_java_legacy_uuid(hex)

Returns:

(String) - the java-legacy-formatted UUID

Parameters:

hex (String) -- The hexadecimal string to convert

def from_uuid_old_to_java_legacy_uuid(hex)
  hex.sub(/\A(..)(..)(..)(..)(..)(..)(..)(..)(..)(..)(..)(..)(..)(..)(..)(..)\z/) do
    (::Regexp.last_match[1..8].reverse + ::Regexp.last_match[9..16].reverse).join
  end
end