code: public String getStringAttribute(String attributeName, Address address) throws Exception {
          return getStringAttribute(false, attributeName, address);
      }
docs: Convienence method that allows you to obtain a single attribute's string value from
  a resource.
  
  @param attributeName the attribute whose value is to be returned
  @param address identifies the resource
  @return the attribute value
  
  @throws Exception if failed to obtain the attribute value