public void startElement(final String uri, final String localName, final String qName, final Attributes attributes)
            throws SAXException {
        if (logger.isDebugEnabled()) {
            logger.debug("Start Element: {}", qName);
        }
        if (tagQueue.isEmpty() && !"eef".equalsIgnoreCase(qName)) {
            throw new GsaConfigException("Invalid format.");
        }