/**
         * Parses the data configuration IDs string into a list.
         *
         * @return list of data configuration IDs, or null if none specified
         */
        protected List<String> getDataConfigIdList() {
            if (StringUtil.isNotBlank(dataConfigIds)) {
                final String[] values = dataConfigIds.split(",");
                return createConfigIdList(values);
            }

        Crawler.Options options = new Crawler.Options();
        options.dataConfigIds = "data1,data2,data3,data4";

        List<String> result = options.getDataConfigIdList();
        assertNotNull(result);
        assertEquals(4, result.size());
        assertTrue(result.contains("data1"));
        assertTrue(result.contains("data2"));
        assertTrue(result.contains("data3"));