private Object getPropertyValue(Map<String, Object> responseMap, String property) throws SystemException {
    if (property == null || responseMap == null) {
      return null;
    }

    Object result = responseMap;

    try {
      for (String key : property.split("/")) {
        result = ((Map) result).get(key);
      }
    } catch (ClassCastException e) {
      String msg = String.format("Error getting property value for %s.", property);
      LOG.error(msg, e);
      throw new SystemException(msg, e);
    }
    return result;
  }
Create a property request.

@param propertyMappings  the property name mapping
ambari-server/src/main/java/org/apache/ambari/server/controller/internal/JsonHttpPropertyRequest.java