/** List of duplicate host rules for URL conversion */
    protected List<DuplicateHost> duplicateHostList;

    /**
     * Default constructor for DuplicateHostHelper.
     * Creates a new duplicate host helper instance.
     */
    public DuplicateHostHelper() {
        // Default constructor
    }

    /**
     * Initializes the duplicate host helper after construction.

    /**
     * Displays the initial duplicate host management page.
     *
     * @param form the search form
     * @return HTML response for the duplicate host list page
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index(final SearchForm form) {
        return asListHtml();
    }

    /**
     * Displays the duplicate host list with pagination.
     *

 * that controls the interval between requests to the same host.
 * It uses a Guava Cache to store the last access time for each host.
 * The delayBeforeProcessing method is overridden to introduce a delay before processing a URL,
 * ensuring that requests to the same host are not made too frequently.
 * The delay is calculated based on the configured delayMillisBeforeProcessing parameter.

    }

    /**
     * Extracts the virtual host key from a RelatedContent entity.
     * If the virtual host is blank or null, returns an empty string.
     * This key is used to organize related content by virtual host.
     *
     * @param entity the RelatedContent entity to extract the host key from
     * @return the virtual host key, or empty string if not specified
     */

        return relatedQueryMap.size();
    }

    /**
     * Extracts the virtual host key from a RelatedQuery entity.
     * If the virtual host is blank or null, returns an empty string.
     *
     * @param entity the RelatedQuery entity to extract the host key from
     * @return the virtual host key, or empty string if blank or null
     */
    protected String getHostKey(final RelatedQuery entity) {

        }

        /**
         * Returns the virtual host.
         *
         * @return The virtual host.
         */
        public String getVirtualHost() {
            return virtualHost;
        }

        /**
         * Sets the virtual host.
         *
         * @param virtualHost The virtual host.
         */
        public void setVirtualHost(final String virtualHost) {

    /**
     * Gets the active external host IP address for active mode FTP.
     *
     * @return The active external host IP address
     */
    public String getActiveExternalHost() {
        return activeExternalHost;
    }

    /**
     * Sets the active external host IP address for active mode FTP.
     *
     * @param activeExternalHost The active external host IP address
     */

        // Mix of same and different hosts
        for (int i = 0; i < numTasks; i++) {
            final int index = i;
            tasks.add(new Callable<Integer>() {
                public Integer call() throws Exception {
                    final UrlQueue q = new UrlQueueImpl();
                    // Use modulo to create multiple accesses to same hosts
                    q.setUrl("http://host" + (index % 5) + ".com/page" + index);

                        .responseFields(new String[] { fessConfig.getIndexFieldDocId() })
                        .build());
    }

    /**
     * Returns a query map for the specified virtual host.
     *
     * @param key The virtual host key.
     * @return A map of terms and boost information.
     */
    protected Map<String, List<Tuple3<String, QueryBuilder, ScoreFunctionBuilder<?>>>> getQueryMap(final String key) {

        return deleteByQueryBuilder(searchEngineClient, index, queryBuilder);
    }

    /**
     * Deletes all documents associated with the specified virtual host.
     *
     * @param virtualHost the virtual host to delete documents for
     * @return the number of documents that were deleted
     */
    public long deleteByVirtualHost(final String virtualHost) {