final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String[] hosts =
                split(address, ",").get(stream -> stream.map(String::trim).filter(StringUtil::isNotEmpty).toArray(n -> new String[n]));
        final Builder builder = Settings.builder()
                .putList("http.hosts", hosts)
                .put("processors", fessConfig.getCrawlerHttpProcessors())

            }
        }

        final String[] hosts = split(ResourceUtil.getFesenHttpUrl(), ",")
                .get(stream -> stream.map(String::trim).filter(StringUtil::isNotEmpty).toArray(n -> new String[n]));
        nodeManager = new NodeManager(hosts, node -> request(new CurlRequest(Method.GET, node.getUrl("/"))));

    }

    /**
     * The regular name field for duplicate host configuration.
     */
    public String regularName;

    /**
     * The duplicate host name field for searching duplicate hosts.
     */
    public String duplicateHostName;

 * This form extends CreateForm to include fields necessary for updating existing duplicate host entries,
 * including tracking information for optimistic locking and audit trails.
 * Duplicate hosts are used to define which domains should be treated as the same site for crawling purposes.
 *
 */
public class EditForm extends CreateForm {

    /**
     * Creates a new EditForm instance.
     */

    @Test
    public void test_isValidVirtualHostPath_emptyVirtualHosts() throws Exception {
        // No virtual hosts configured
        setupVirtualHostHelper();

        Boolean result = invokeIsValidVirtualHostPath("/anypath");
        assertFalse("Any non-empty/non-root path should be blocked when no virtual hosts configured", result);
    }

    @Test

import jakarta.annotation.PostConstruct;

/**
 * Helper class for managing related query configurations.
 * This class provides functionality to load, cache, and retrieve related queries
 * based on search terms and virtual hosts. Related queries are used to suggest
 * alternative or supplementary search terms to improve search results.
 */
public class RelatedQueryHelper extends AbstractConfigHelper {

    public String available;

    /** The permissions required to access documents from this configuration. */
    @CustomSize(maxKey = "form.admin.max.input.size")
    public String permissions;

    /** The virtual hosts associated with this file configuration. */
    @CustomSize(maxKey = "form.admin.max.input.size")
    public String virtualHosts;

    /** The sort order for this configuration (required, 0 to 2147483647). */

    @Size(max = 5)
    public String available;

    /** Access permissions for documents from this data source */
    @CustomSize(maxKey = "form.admin.max.input.size")
    public String permissions;

    /** Virtual hosts where this configuration applies */
    @CustomSize(maxKey = "form.admin.max.input.size")
    public String virtualHosts;

    /** Sort order for displaying configurations */
    @Required
    @Min(value = 0)

    }

    @SuppressWarnings("unchecked")
    default Tuple3<String, String, String>[] getVirtualHosts() {
        Tuple3<String, String, String>[] hosts = (Tuple3<String, String, String>[]) propMap.get(VIRTUAL_HOST_HEADERS);
        if (hosts == null) {
            hosts = split(getVirtualHostHeaderValue(), "\n").get(stream -> stream.map(s -> {
                final String[] v1 = s.split("=");
                if (v1.length == 2) {

        return StringUtil.isBlank(s) ? StringUtil.EMPTY : "/" + s;
    }

    /**
     * Gets the virtual host key from the current request.
     * The key is determined by matching HTTP headers against configured virtual hosts.
     *
     * @return The virtual host key, or empty string if no match found
     */
    public String getVirtualHostKey() {