return LocalDateTime.ofInstant(instant, ZoneId.systemDefault());
    }

    /**
     * Gets the path to the log file.
     *
     * @return The log file path.
     */
    public String getLogFilePath() {
        final String value = System.getProperty("fess.log.path");
        if (value != null) {
            return value;
        }
        final String userDir = System.getProperty("user.dir");

		<packaging.fess.var.dir>/var/lib/fess</packaging.fess.var.dir>
		<packaging.fess.lib.dir>${packaging.fess.home.dir}/lib</packaging.fess.lib.dir>
		<packaging.fess.log.dir>/var/log/fess</packaging.fess.log.dir>
		<packaging.fess.temp.dir>/var/tmp/fess</packaging.fess.temp.dir>
		<packaging.fess.extension.dir>${packaging.fess.home.dir}/extension</packaging.fess.extension.dir>

 *
 * This class provides comprehensive search functionality including document search,
 * scroll search, and bulk operations. It handles search request parameter processing,
 * query building, response formatting, and search log management.
 *
 * Key features:
 * - Document search with pagination and faceting
 * - Scroll search for large result sets
 * - Document retrieval by ID
 * - Bulk document updates