final List<String> docIdList = new ArrayList<>();
            for (final Map<String, Object> map : documentItems) {
                final Object docId = map.get(fessConfig.getIndexFieldDocId());
                if (docId != null && docId.toString().length() > 0) {
                    docIdList.add(docId.toString());
                }
            }

            if (!docIdList.isEmpty()) {

                        searchHelper.getDocumentListByDocIds(clickCountMap.keySet().toArray(new String[clickCountMap.size()]),
                                new String[] { fessConfig.getIndexFieldDocId(), fessConfig.getIndexFieldLang() },
                                OptionalThing.of(FessUserBean.empty()), SearchRequestType.ADMIN_SEARCH).stream().map(doc -> {

            }
        }

        if (documentBoost > 0) {
            addBoostValue(map, documentBoost);
        }

        if (!map.containsKey(fessConfig.getIndexFieldDocId())) {
            map.put(fessConfig.getIndexFieldDocId(), systemHelper.generateDocId(map));
        }

        ComponentUtil.getLanguageHelper().updateDocument(map);
    }

            flist.add(new FunctionScoreQueryBuilder.FilterFunctionBuilder(ScoreFunctionBuilders.randomFunction()
                    .seed(ComponentUtil.getSystemHelper().getCurrentTimeAsLong()).setField(fessConfig.getIndexFieldDocId())));
            reader.setQuery(QueryBuilders
                    .functionScoreQuery(QueryBuilders.matchAllQuery(),

            final List<Map<String, Object>> docList = searchHelper.getDocumentListByDocIds(docIds, new String[] {
                    fessConfig.getIndexFieldUrl(), fessConfig.getIndexFieldDocId(), fessConfig.getIndexFieldFavoriteCount() },
                    OptionalThing.empty(), SearchRequestType.JSON);
            List<String> urlList = new ArrayList<>(docList.size());

                return false;
            }

            public String getIndexFieldUrl() {
                return "url";
            }

            public String getIndexFieldDocId() {
                return "doc_id";
            }
        });

        // http
        assertUrlLink("http://www.codelibs.org/", //
                "http://www.codelibs.org/");

        String url = DocumentUtil.getValue(document, fessConfig.getIndexFieldUrl(), String.class);

        if (StringUtil.isBlank(url)) {
            return "#not-found-" + DocumentUtil.getValue(document, fessConfig.getIndexFieldDocId(), String.class);
        }

        final boolean isSmbUrl = url.startsWith("smb:") || url.startsWith("smb1:");
        final boolean isFtpUrl = url.startsWith("ftp:");

     * Get the value for the key 'index.field.doc_id'. <br>
     * The value is, e.g. doc_id <br>
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getIndexFieldDocId();

    /**
     * Get the value for the key 'index.field.id'. <br>
     * The value is, e.g. _id <br>
     * @return The value of found property. (NotNull: if not found, exception but basically no way)