return 300;
        }

        @Override
        public String getIndexLogIndex() {
            return "fess_log";
        }

        @Override
        public String getIndexSearchTimeout() {
            return "30000";
        }

        @Override
        public String getMailFromAddress() {
            return "******@****.***";
        }

        @Override

        boolean exists = false;
        try {
            final IndicesExistsResponse response =
                    client.admin().indices().prepareExists(indexName).execute().actionGet(fessConfig.getIndexSearchTimeout());
            exists = response.isExists();
        } catch (final Exception e) {
            logger.debug("Failed to check index status: indexName={}", indexName, e);
        }
        return exists;
    }

                .setSize(searchSize)
                .addSort("timestamp", SortOrder.ASC)
                .execute()
                .actionGet(fessConfig.getIndexSearchTimeout());

        final SearchHit[] hits = searchResponse.getHits().getHits();
        if (hits.length == 0) {
            return "No log notifications.";
        }

     * The value is, e.g. 3m <br>
     * comment: Timeout for index search operations.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getIndexSearchTimeout();

    /**
     * Get the value for the key 'index.scroll.search.timeout'. <br>
     * The value is, e.g. 3m <br>
     * comment: Timeout for scroll search operations.