package once

// Singleton contains a pointer to T that must be set once.
// Until the value is set all Get() calls will block.
type Singleton[T any] struct {
	v   *T
	set chan struct{}
}

// NewSingleton creates a new unset singleton.
func NewSingleton[T any]() *Singleton[T] {
	return &Singleton[T]{set: make(chan struct{}), v: nil}
}

// Get will return the singleton value.
func (s *Singleton[T]) Get() *T {
	<-s.set
	return s.v

            return StorageType.S3;
        }

        // Default to S3-compatible (MinIO, etc.)
        return StorageType.S3_COMPAT;
    }

    /**
     * Creates a StorageClient based on FessConfig.
     *
     * @param fessConfig the Fess configuration
     * @return configured StorageClient
     */
    public static StorageClient createClient(final FessConfig fessConfig) {

    extends AbstractListMultimap<K, V> {
  // Default from ArrayList
  private static final int DEFAULT_VALUES_PER_KEY = 3;

  @VisibleForTesting transient int expectedValuesPerKey;

  /**
   * Creates a new, empty {@code ArrayListMultimap} with the default initial capacities.
   *
   * <p>You may also consider the equivalent {@code
   * MultimapBuilder.hashKeys().arrayListValues().build()}, which provides more control over the

                    return null;
                }))
                .status(ApiResult.Status.OK)
                .result());
    }

    /**
     * Creates a new stopwords dictionary item.
     *
     * @param dictId the dictionary ID
     * @param body the request body containing stopwords item information
     * @return JSON response with result status
     */

import jakarta.validation.constraints.Max;
import jakarta.validation.constraints.Min;
import jakarta.validation.constraints.Size;

/**
 * The create form for File Authentication.
 */
public class CreateForm {

    /**
     * Creates a new CreateForm instance.
     */
    public CreateForm() {
        // Default constructor
    }

    /** The CRUD operation mode for this form. */

/**
 * OpenID Connect credential implementation.
 */
public class OpenIdConnectCredential implements LoginCredential, FessCredential {

    private final Map<String, Object> attributes;

    /**
     * Creates a new OpenID Connect credential.
     *
     * @param attributes the attributes from OpenID Connect provider
     */
    public OpenIdConnectCredential(final Map<String, Object> attributes) {

    @Min(value = 0)
    @Max(value = 2147483647)
    @ValidateTypeFailure
    public Integer sortOrder;

    /** The username of who created this duplicate host entry */
    @Size(max = 1000)
    public String createdBy;

    /** The timestamp when this duplicate host entry was created */
    @ValidateTypeFailure
    public Long createdTime;

    /**

        String createdStr;
        final Date created = DocumentUtil.getValue(doc, fessConfig.getIndexFieldCreated(), Date.class);
        if (created != null) {
            final SimpleDateFormat sdf = new SimpleDateFormat(CoreLibConstants.DATE_FORMAT_ISO_8601_EXTEND);
            createdStr = sdf.format(created);
        } else {

            return null;
        })).status(Status.OK).result());
    }

    /**
     * Creates a new web configuration setting.
     *
     * @param body the web configuration data to create
     * @return JSON response containing the created web configuration setting ID
     */
    // POST /api/admin/webconfig/setting
    @Execute

     *
     * @return the list of remote repositories, or null if not specified
     */
    @Nullable
    List<RemoteRepository> getRepositories();

    /**
     * Creates a new ProjectBuilderRequest with the specified session and source.
     *
     * @param session the Maven session
     * @param source the source of the project to build
     * @return a new ProjectBuilderRequest