if (value != null) {
            return value;
        }
        return get("elasticsearch.type");
    }

    String getSearchEngineHttpUrl();

    default String getFesenHttpUrl() {
        final String value = getSearchEngineHttpUrl();
        if (value != null) {
            return value;
        }
        return get("elasticsearch.http.url");
    }

        assertEquals("default", fessConfig.getSearchEngineType());
    }

    @Test
    public void test_searchEngineHttpUrl() {
        assertEquals("http://localhost:9201", fessConfig.getSearchEngineHttpUrl());
    }

    @Test
    public void test_searchEngineHeartbeatInterval() {
        assertEquals(Integer.valueOf(10000), fessConfig.getSearchEngineHeartbeatIntervalAsInteger());
    }

    @Test

     * For IPv6 environments, use brackets around the IPv6 address (e.g., http://[::1]:9201)
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getSearchEngineHttpUrl();

    /**
     * Get the value for the key 'search_engine.http.ssl.certificate_authorities'. <br>
     * The value is, e.g.  <br>