net_io.msg.BaseMsg Maven / Gradle / Ivy
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package net_io.msg;
import net_io.core.ByteArray;
public abstract class BaseMsg extends MsgReadWrite {
/** 最大消息体长度 **/
public static final int MAX_MSG_LENGTH = 8 * 1024*1024;
/** BaseMsg对象的HEAD区域长度（字节）：10B **/
public static final int BASE_MSG_HEAD_LENGTH = 10;
private int msgID = 0;
private int originMsgID = 0;
protected int option1 = 0;
protected int option2 = 0;
protected BaseMsg(int msgID) {
this.originMsgID = this.msgID = msgID;
}
/**
* 获取消息ID
*/
public int getMsgID() {
return msgID;
}
/**
* 获取在对象创建时的消息ID
*/
public int getOriginMsgID() {
return originMsgID;
}
/**
* 重设消息ID
* @param msgID
*/
public void resetMsgID(int msgID) {
this.msgID = msgID;
}
public void readData(ByteArray data) {
//消息长度与消息号，在消息接收时已读取
//读取可选参数
option1 = data.readUInt16();
option2 = data.readUInt16();
}
public void writeData(ByteArray data) {
data.writeUInt32(0); //消息长度，初始化为0。在发送消息时设置
data.writeUInt16(msgID); //消息ID
data.writeUInt16(option1); //保留参数1
data.writeUInt16(option2); //保留参数2
}
/**
* 写入完成时调用(写入消息的长度)
*/
public void finishWrite(ByteArray data) {
data.finishWrite();
data.writeUInt32(data.size());
data.rewind();
}
}