for (Map<String, Object> setting : settings) {
            final Map<String, Object> requestBody = new HashMap<>(updateMap);
            requestBody.put("version_no", 1);
            final String idKey = getIdKey();
            if (setting.containsKey(idKey)) {
                requestBody.put(idKey, setting.get(idKey));
            }
            for (String key : keySet) {

        final Map<String, Object> source = toLowerHyphen(searchLogEvent.toSource());
        source.put("_id", searchLogEvent.getId());
        // source.put("version_no", searchLogEvent.getVersionNo());
        source.put("event_type", searchLogEvent.getEventType());
        return source;
    }

    /**
     * Converts a map to lower hyphen case.
     *

        labelTypePager.versionNo = "1";
        labelTypePager.setAllRecordCount(100);
        labelTypePager.setAllPageCount(10);
        labelTypePager.setExistPrePage(true);
        labelTypePager.setExistNextPage(true);

        labelTypePager.clear();

        assertNull(labelTypePager.id);
        assertNull(labelTypePager.name);
        assertNull(labelTypePager.versionNo);

        assertEquals(1, relatedContentPager.getCurrentPageNumber());
        assertNull(relatedContentPager.id);
        assertNull(relatedContentPager.term);
        assertNull(relatedContentPager.versionNo);

        relatedContentPager.setAllRecordCount(999);
        assertEquals(999, relatedContentPager.getAllRecordCount());
        relatedContentPager.setAllPageCount(999);

        roleTypePager.versionNo = "1";
        roleTypePager.setAllRecordCount(100);
        roleTypePager.setAllPageCount(10);
        roleTypePager.setExistPrePage(true);
        roleTypePager.setExistNextPage(true);

        roleTypePager.clear();

        assertNull(roleTypePager.id);
        assertNull(roleTypePager.name);
        assertNull(roleTypePager.versionNo);

        assertEquals(1, keyMatchPager.getCurrentPageNumber());
        assertNull(keyMatchPager.id);
        assertNull(keyMatchPager.term);
        assertNull(keyMatchPager.query);
        assertNull(keyMatchPager.versionNo);

        keyMatchPager.setAllRecordCount(999);
        assertEquals(999, keyMatchPager.getAllRecordCount());
        keyMatchPager.setAllPageCount(999);
        assertEquals(999, keyMatchPager.getAllPageCount());

        rolePager.name = "testName";
        rolePager.versionNo = "1";
        rolePager.setAllRecordCount(100);
        rolePager.setAllPageCount(10);
        rolePager.setExistPrePage(true);
        rolePager.setExistNextPage(true);

        rolePager.clear();

        assertNull(rolePager.id);
        assertNull(rolePager.name);
        assertNull(rolePager.versionNo);
        assertEquals(0, rolePager.getAllRecordCount());

        assertEquals(1, userPager.getCurrentPageNumber());
        assertNull(userPager.id);
        assertNull(userPager.roles);
        assertNull(userPager.groups);
        assertNull(userPager.versionNo);

        userPager.setAllRecordCount(999);
        assertEquals(999, userPager.getAllRecordCount());
        userPager.setAllPageCount(999);
        assertEquals(999, userPager.getAllPageCount());

        private String id;
        private Long versionNo;
        private String eventType;
        private Map<String, Object> sourceMap;

        public TestSearchLogEvent(String id, Long versionNo, String eventType) {
            this.id = id;
            this.versionNo = versionNo;
            this.eventType = eventType;
            this.sourceMap = new HashMap<>();
        }

        assertEquals(1, elevateWordPager.getCurrentPageNumber());
        assertNull(elevateWordPager.id);
        assertNull(elevateWordPager.suggestWord);
        assertNull(elevateWordPager.versionNo);

        elevateWordPager.setAllRecordCount(999);
        assertEquals(999, elevateWordPager.getAllRecordCount());
        elevateWordPager.setAllPageCount(999);