logger.warn("Failed to delete {}", tempFile.getAbsolutePath());
                    }
                    throw e1;
                }
                return asStream("es_" + ComponentUtil.getSystemHelper().getCurrentTimeAsLong() + ".json").contentTypeOctetStream()
                        .stream(out -> {
                            try (final InputStream in = new FileInputStream(tempFile)) {

        final String value = System.getProperty(Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS);
        if (value != null) {
            return value;
        }
        return System.getProperty(Constants.FESS_ES_HTTP_ADDRESS);
    }

    }

    protected void writeElastisearchJsonApi(final ZipOutputStream zos, final String id, final String v1, final String v2) {
        final ZipEntry entry = new ZipEntry(id + "/es_" + v1 + "_" + v2 + ".json");
        try {
            zos.putNextEntry(entry);
            try (CurlResponse response = ComponentUtil.getCurlHelper().get("/_" + v1 + "/" + v2).execute()) {

    //                                                                          Definition
    //                                                                          ==========
    public static final String PATH = "es_status.dfmail";

    // ===================================================================================
    //                                                                         Entry Point

    public static final String FACET_QUERY_PREFIX = "query:";

    public static final String MATCHES_ALL_QUERY = "*:*";

    @Deprecated
    public static final String FESS_ES_HTTP_ADDRESS = "fess.es.http_address";

    public static final String FESS_SEARCH_ENGINE_HTTP_ADDRESS = "fess.search_engine.http_address";

    public static final int DEFAULT_PAGE_SIZE = 20;