@Override
  public String unmask(String value) throws MaskException {
    try {
      return new String(Base64.decodeBase64(value), "UTF-8");
    } catch (UnsupportedEncodingException e) {
      throw new MaskException("UTF-8 is not supported", e);
    }
  }
Provides simple masking of view parameters.
ambari-server/src/main/java/org/apache/ambari/server/view/DefaultMasker.java