<fim-prefix>port io.micronaut.http.hateoas.JsonError;
import io.micronaut.http.hateoas.VndError;

import java.util.Optional;

/**
 * Strategy interface for decoding the error from a server respponse.
 *
 * @author graemerocher
 * @since 1.0
 */
@Internal
public interface HttpClientErrorDecoder {

    /**
     * The default implementation.
     */
    HttpClientErrorDecoder DEFAULT = new HttpClientErrorDecoder() { };

    /**
     * Default message decoder.
     *
     * @param error The error object
     * @return The message
     */
    default Optional<String> getMessage(Object error) {
        if (error == null) {
            return Optional.empty();
        }
        if (error instanceof JsonError) {
            return Optional.ofNullable(((JsonError) error).getMessage());
        } else {
            if (error instanceof Described) {
                return Optional.ofNullable(((Described) error).getDescription());
            } else {
                return Optional.of(error.toString());
            }
        }
    }

    /**
     * Gets the error type for the given media type.
     *
     * @param mediaType The media type
     * @return The error type
     */
    default Argument<?> getErrorType(MediaType mediaType) {
        if (mediaType.equals(MediaType.APPLICATION_JSON_TYPE)) {
            return Argument.of(JsonError.class);
        } else if (mediaType.equals(MediaType.APPLICATION_VND_ERROR_TYPE)) {
            return Argument.of(VndError.class);
        } else {
            // BUG: CWE-400 Uncontrolled Resource Consumption
            // return Argument.of(String.class);
            // FIXED: 
<fim-middle>            return Argument.STRING;
        }
    }
}
<fix-suffix><|endoftext|>