org.fisco.bcos.channel.dto.ChannelMessage2 Maven / Gradle / Ivy

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fisco-bcos web3jsdk

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package org.fisco.bcos.channel.dto;

import org.fisco.bcos.channel.handler.Message;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import io.netty.buffer.ByteBuf;

public class ChannelMessage2 extends Message {
	private static Logger logger = LoggerFactory.getLogger(ChannelMessage2.class);
	
	private static final long serialVersionUID = -7276897518418560354L;
	
	public ChannelMessage2() {}
	
	public ChannelMessage2(Message msg) {
		length = msg.getLength();
		type = msg.getType();
		seq = msg.getSeq();
		result = msg.getResult();
	}
	
	@Override
	public void readExtra(ByteBuf in) {
		logger.debug("readExtra channel2 package: {}", result);
		if (result == 0) {
			Short topicLength = in.readUnsignedByte();
			
			byte[] topicBytes = new byte[topicLength - 1];
			in.readBytes(topicBytes, 0, topicLength - 1);
			topic = new String(topicBytes);
			
			data = new byte[length - Message.HEADER_LENGTH - topicLength];
			in.readBytes(data, 0, length - Message.HEADER_LENGTH - topicLength);
			logger.debug("data: {} {}", data.length, data);
		}
	}
	
	@Override
	public void writeHeader(ByteBuf out) {
		//先计算总长度
		length = Message.HEADER_LENGTH + 1 + topic.length() + data.length;
		
		super.writeHeader(out);
	}
	
	@Override
	public void writeExtra(ByteBuf out) {
		out.writeByte(1 + topic.length());
		out.writeBytes(topic.getBytes());
		
		out.writeBytes(data);
	}
	
	public String getTopic() {
		return topic;
	}

	public void setTopic(String toTopic) {
		this.topic = toTopic;
	}
	
	private String topic;
}