super.addInstanceRules(rs);
rs.addRule(new ElementSelector("configuration"), new ConfigurationAction());
rs.addRule(new ElementSelector("configuration/appender-ref"), new AppenderRefAction());
rs.addRule(new ElementSelector("configuration/appender/sift"), new SiftAction());
rs.addRule(new ElementSelector("configuration/appender/sift/*"), new NOPAction());
rs.addRule(new ElementSelector("configuration/evaluator"), new EvaluatorAction());
// add if-then-else support