public static String getConfigurationPropertyTypeName(String category, String propertyName) {
    final ConfigurationPropertyType configurationPropertyType = getConfigurationPropertyType(category, propertyName);
    return configurationPropertyType == null ? null : configurationPropertyType.name();
  }
@param category     the name of the category
@param propertyName the name of the property
@return the String representation of the type if such category/property
exists; {@code null} otherwise
ambari-server/src/main/java/org/apache/ambari/server/controller/internal/AmbariServerConfigurationUtils.java