return "fess-server";
            }
        });
        try {
            envMap.put("HOSTNAME", "myhost");
            final long pid = ProcessHandle.current().pid();
            assertEquals("fess-server@myhost:" + pid, systemHelper.getInstanceId());
        } finally {
            envMap.remove("HOSTNAME");
        }
    }

    @Test

     * @param host the hostname or IP address string
     * @param port the port number
     * @param path the path (should start with "/" or be empty)
     * @return the complete URL string
     */
    public static String buildUrl(final String protocol, final String host, final int port, final String path) {
        if (protocol == null || host == null) {
            return null;
        }

    }

    /**
     * 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
     */

/**
 * The search form for Duplicate Host.
 */
public class SearchForm {

    /**
     * Default constructor for SearchForm.
     */
    public SearchForm() {
    }

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

    /**
     * The duplicate host name field for searching duplicate hosts.
     */

                break
            }
        }
        return prs
            .filter { it.milestone?.title?.startsWith(milestone.get()) == true }
            // Filter out the ghost user that replaces deleted users
            .filter { it.user.login != "ghost" }
            .map { it.user.login }
            .toSet()
            .map { getUserInfo(it) }
            .toSet()
    }

    private

    /** 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.

            return value;
        });
    }

    /**
     * Processes virtual host configuration by applying a function to the matched virtual host key.
     *
     * @param <T> The return type of the function
     * @param func The function to apply to the virtual host key
     * @param defaultValue The default value to return if no virtual host matches
     * @return The result of applying the function, or the default value
     */

import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;

import jakarta.annotation.Resource;

/**
 * API action for admin duplicate host management.
 * Provides RESTful API endpoints for managing duplicate host settings in the Fess search engine.
 * Duplicate host settings help prevent indexing the same content from multiple similar URLs.
 *
 */
public class ApiAdminDuplicatehostAction extends FessApiAdminAction {

import org.dbflute.optional.OptionalEntity;

import jakarta.annotation.Resource;

/**
 * Service class for managing duplicate host configuration CRUD operations.
 * This service provides functionality to create, read, update, and delete
 * duplicate host configurations used by the Fess crawler system.
 *
 * <p>Duplicate host configurations allow administrators to define hostname patterns

/**
 * Search request body for duplicate host administration.
 * Extends BaseSearchBody with duplicate host-specific search parameters.
 */
public class SearchBody extends BaseSearchBody {

    /** The regular host name to search for. */
    public String regularName;

    /** The duplicate host name to search for. */
    public String duplicateHostName;

    /**