001/* 002 * Trident - A Multithreaded Server Alternative 003 * Copyright 2014 The TridentSDK Team 004 * 005 * Licensed under the Apache License, Version 2.0 (the "License"); 006 * you may not use this file except in compliance with the License. 007 * You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018package net.tridentsdk.server.packets.play.in; 019 020import io.netty.buffer.ByteBuf; 021import net.tridentsdk.server.netty.ClientConnection; 022import net.tridentsdk.server.netty.Codec; 023import net.tridentsdk.server.netty.packet.InPacket; 024import net.tridentsdk.server.netty.packet.Packet; 025import net.tridentsdk.server.player.PlayerConnection; 026 027/** 028 * Sent by the packet to keep the connection alive 029 */ 030public class PacketPlayInKeepAlive extends InPacket { 031 032 /** 033 * Id of the keep alive packet, sent by the server 034 */ 035 protected int keepAliveId; 036 037 @Override 038 public int id() { 039 return 0x0B; 040 } 041 042 @Override 043 public Packet decode(ByteBuf buf) { 044 this.keepAliveId = Codec.readVarInt32(buf); 045 046 return this; 047 } 048 049 @Override 050 public void handleReceived(ClientConnection connection) { 051 PlayerConnection pc = (PlayerConnection) connection; 052 053 if (!pc.hasSentKeepAlive()) 054 return; 055 056 pc.handleKeepAlive(this); 057 } 058}