code: public static void parse (DefaultHandler handler, InputStream in)
          throws IOException, ParserConfigurationException, SAXException
      {
          XMLReader xr = _pfactory.newSAXParser().getXMLReader();
  
          xr.setContentHandler(handler);
          xr.setErrorHandler(handler);
  
          xr.parse(new InputSource(in));
      }
docs: Parse the XML data in the given input stream, using the
  specified handler object as both the content and error handler.
  
  @param handler the SAX event handler
  @param in the input stream containing the XML to be parsed