import java.util.Objects;
import java.util.concurrent.TimeUnit;
import org.jspecify.annotations.Nullable;

/**
 * Useful suppliers.
 *
 * <p>All methods return serializable suppliers as long as they're given serializable parameters.
 *
 * @author Laurence Gonsalves
 * @author Harry Heymann
 * @since 2.0
 */
@GwtCompatible
public final class Suppliers {
  private Suppliers() {}

  /**

}

func (er erasureObjects) getMultipartSHADir(bucket, object string) string {
	return getSHA256Hash([]byte(pathJoin(bucket, object)))
}

// checkUploadIDExists - verify if a given uploadID exists and is valid.
func (er erasureObjects) checkUploadIDExists(ctx context.Context, bucket, object, uploadID string, write bool) (fi FileInfo, metArr []FileInfo, err error) {
	defer func() {

        final int pos = url.indexOf(':');

        if (pos == -1) {
            return "";
        }
        return url.substring(0, pos).trim();
    }

    /**
     * Derive the path portion of the given URL.
     *
     * @param url the repository URL
     * @return the basedir of the repository
     * TODO need to URL decode for spaces?
     */
    private String basedir(String url) {

	bucketCh := make(chan BucketInfo, len(buckets))

	// Shuffle buckets to ensure total randomness of buckets, being scanned.
	// Otherwise same set of buckets get scanned across erasure sets always.
	// at any given point in time. This allows different buckets to be scanned
	// in different order per erasure set, this wider spread is needed when
	// there are lots of buckets with different order of objects in them.

labels.backup_bulk_file=Bulk File
labels.backup_button_upload=Upload
labels.process_time_is_exceeded=The search processing time has exceeded the limit. The displayed results may be partial.
labels.user_given_name=Given Name
labels.givenName=Given Name
labels.user_surname=Surname
labels.surame=Surname
labels.user_mail=Mail
labels.mail=Mail
labels.user_employeeNumber=Employee Number
labels.employeeNumber=Employee Number

			userCaKeyFile = tokens[1]
		case "disable-password-auth":
			disablePassAuth, _ = strconv.ParseBool(tokens[1])
		}
	}

	if port == 0 {
		port = 8022 // Default SFTP port, since no port was given.
	}

	if sshPrivateKey == "" {
		logger.Fatal(fmt.Errorf("invalid arguments passed, private key file is mandatory for --sftp='ssh-private-key=path/to/id_ecdsa'"), "unable to start SFTP server")
	}

	lastErrTime  time.Time
}

type restError string

func (e restError) Error() string {
	return string(e)
}

func (e restError) Timeout() bool {
	return true
}

// Given a string of the form "host", "host:port", or "[ipv6::address]:port",
// return true if the string includes a port.
func hasPort(s string) bool { return strings.LastIndex(s, ":") > strings.LastIndex(s, "]") }

func newRecordsMessage(payload []byte) []byte {
	return genMessage(recordsHeader, payload)
}

// payloadLenForMsgLen computes the length of the payload in a record
// message given the total length of the message.
func payloadLenForMsgLen(messageLength int) int {
	headerLength := len(recordsHeader)
	payloadLength := messageLength - 4 - 4 - 4 - headerLength - 4
	return payloadLength
}

		if err != nil {
			return -1, errObjectTampered
		}
		size += int64(partSize)
	}
	return size, nil
}

// DecryptETag decrypts the ETag that is part of given object
// with the given object encryption key.
//
// However, DecryptETag does not try to decrypt the ETag if
// it consists of a 128 bit hex value (32 hex chars) and exactly
// one '-' followed by a 32-bit number.

   * elementSet()}, do not support {@code remove()}. However, all other multiset methods supported
   * by {@code unfiltered} are supported by the returned multiset. When given an element that
   * doesn't satisfy the predicate, the multiset's {@code add()} and {@code addAll()} methods throw
   * an {@link IllegalArgumentException}. When methods such as {@code removeAll()} and {@code