final DocumentBuilder builder = factory.newDocumentBuilder();

            final Document doc = builder.parse(is);

            final StringBuilder buf = new StringBuilder(1000);
            buf.append(getResultDataHeader());
            for (final Map.Entry<String, String> entry : fieldRuleMap.entrySet()) {
                final List<String> nodeStrList = new ArrayList<>();
                try {

    }

    /**
     * Test rule with very long rule ID
     */
    public void test_veryLongRuleId() {
        StringBuilder longId = new StringBuilder();
        for (int i = 0; i < 1000; i++) {
            longId.append("verylongruleid_");
        }

        TestRule rule = new TestRule(longId.toString(), new TestResponseProcessor("longProcessor"), true);