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There is a newer version: 8.15.1

/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the Elastic License
 * 2.0 and the Server Side Public License, v 1; you may not use this file except
 * in compliance with, at your election, the Elastic License 2.0 or the Server
 * Side Public License, v 1.
 */

package org.elasticsearch.transport;

public final class TransportStatus {

    private static final byte STATUS_REQRES = 1 << 0;
    private static final byte STATUS_ERROR = 1 << 1;
    private static final byte STATUS_COMPRESS = 1 << 2;
    private static final byte STATUS_HANDSHAKE = 1 << 3;

    public static boolean isRequest(byte value) {
        return (value & STATUS_REQRES) == 0;
    }

    public static byte setRequest(byte value) {
        value &= ~STATUS_REQRES;
        return value;
    }

    public static byte setResponse(byte value) {
        value |= STATUS_REQRES;
        return value;
    }

    public static boolean isError(byte value) {
        return (value & STATUS_ERROR) != 0;
    }

    public static byte setError(byte value) {
        value |= STATUS_ERROR;
        return value;
    }

    public static boolean isCompress(byte value) {
        return (value & STATUS_COMPRESS) != 0;
    }

    public static byte setCompress(byte value) {
        value |= STATUS_COMPRESS;
        return value;
    }

    static boolean isHandshake(byte value) { // pkg private since it's only used internally
        return (value & STATUS_HANDSHAKE) != 0;
    }

    static byte setHandshake(byte value) { // pkg private since it's only used internally
        value |= STATUS_HANDSHAKE;
        return value;
    }
}