com.github.javaclub.mq.common.netty.protocol.SubReportProtocol Maven / Gradle / Ivy

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package com.github.javaclub.mq.common.netty.protocol;

import io.netty.buffer.ByteBuf;

/**
 * 订阅者状态上报
 */
public class SubReportProtocol extends AbstractProtocol {

	private static byte code = CodeProtocol.sub_report; 
	private int subId; // 订阅者id
	private long ip; // 机器ip
	private byte keyLength;
	private byte[] subKey;
	
	public void encode(ByteBuf out) {
		super.setCode(code);
		super.encode(out);
		out.writeInt(subId);
		out.writeLong(ip);
		out.writeByte(keyLength);
		out.writeBytes(subKey);
	}

	public int decode(ByteBuf in) {
		int readindex = super.decode(in);
		if (readindex != -1) {
			if (in.readableBytes() >= 4 + 8 + 1) {
				readindex = in.readerIndex();
				subId = in.readInt();
				ip = in.readLong();
				keyLength = in.readByte();
				if(in.readableBytes() >= keyLength){
					subKey = new byte[keyLength];
					in.readBytes(subKey);
					return 0;
				}else{
					in.readerIndex(readindex); // 恢复readindex
					return -1;
				}
			} else {
				in.readerIndex(readindex); // 恢复readindex
				return -1;
			}
		}
		return -1;
	}

	public byte getCode() {
		return code;
	}

	public void setCode(byte code) {
		SubReportProtocol.code = code;
	}

	public int getSubId() {
		return subId;
	}

	public void setSubId(int subId) {
		this.subId = subId;
	}

	public long getIp() {
		return ip;
	}

	public void setIp(long ip) {
		this.ip = ip;
	}

	public byte getKeyLength() {
		return keyLength;
	}

	public void setKeyLength(byte keyLength) {
		this.keyLength = keyLength;
	}

	public byte[] getSubKey() {
		return subKey;
	}

	public void setSubKey(byte[] subKey) {
		this.subKey = subKey;
	}

	
}