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.netty.packet; 019 020import io.netty.buffer.ByteBuf; 021import net.tridentsdk.server.netty.Codec; 022 023/** 024 * Wraps the raw Packet Data/Bytes received over the network (May serve more functions later) 025 * 026 * @author The TridentSDK Team 027 */ 028public class PacketData { 029 private final ByteBuf rawData; 030 private Integer id; 031 032 /** 033 * Wraps the packet raw information 034 * 035 * @param data the serialized form of the packet 036 */ 037 public PacketData(ByteBuf data) { 038 this.rawData = data; 039 } 040 041 /** 042 * Gets the Id of the packet. Reads it if it hasn't been read 043 * 044 * @return id the id of the packet 045 */ 046 public int id() { 047 return this.id == null ? this.id = Codec.readVarInt32(this.data()) : this.id; 048 } 049 050 /** 051 * Gets the appropriate packet data 052 * 053 * @return the serialized packet 054 */ 055 public ByteBuf data() { 056 return this.rawData; 057 } 058 059 /** 060 * The amount of bytes that can be read from the serialized packet 061 * 062 * @return the byte length of the serialized data 063 */ 064 public int getLength() { 065 return this.data().readableBytes(); 066 } 067}