assert ParameterAccessor.PARAM_FORMAT_PDF .equalsIgnoreCase( ParameterAccessor.getFormat( request ) );
	protected String doPostService( HttpServletRequest request,			HttpServletResponse response ) throws ServletException, IOException	{		assert ParameterAccessor.PARAM_FORMAT_PDF				.equalsIgnoreCase( ParameterAccessor.getFormat( request ) );		return null;	}