/* * Copyright (c) 2019-2021 GeyserMC. http://geysermc.org * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * * @author GeyserMC * @link https://github.com/GeyserMC/Geyser */package org.geysermc.connector.network.translators.java;import com.github.steveice10.mc.protocol.packet.ingame.server.ServerKeepAlivePacket;import com.nukkitx.protocol.bedrock.packet.NetworkStackLatencyPacket;import org.geysermc.connector.network.session.GeyserSession;import org.geysermc.connector.network.translators.PacketTranslator;import org.geysermc.connector.network.translators.Translator;/** * Used to forward the keep alive packet to the client in order to get back a reliable ping. */@Translator(packet = ServerKeepAlivePacket.class)public class JavaKeepAliveTranslator extends PacketTranslator<ServerKeepAlivePacket> {    @Override    public void translate(GeyserSession session, ServerKeepAlivePacket packet) {        if (!session.getConnector().getConfig().isForwardPlayerPing()) {            return;        }        NetworkStackLatencyPacket latencyPacket = new NetworkStackLatencyPacket();        latencyPacket.setFromServer(true);        latencyPacket.setTimestamp(packet.getPingId() * 1000);        session.sendUpstreamPacket(latencyPacket);    }}