Session.java
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package com.genersoft.iot.vmp.jt1078.session;
import com.genersoft.iot.vmp.jt1078.proc.Header;
import io.netty.channel.Channel;
import io.netty.util.AttributeKey;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.concurrent.atomic.AtomicInteger;
/**
* @author QingtaiJiang
* @date 2023/4/27 18:54
* @email qingtaij@163.com
*/
public class Session {
private final static Logger log = LoggerFactory.getLogger(Session.class);
public static final AttributeKey<Session> KEY = AttributeKey.newInstance(Session.class.getName());
// Netty的channel
protected final Channel channel;
// 原子类的自增ID
private final AtomicInteger serialNo = new AtomicInteger(0);
// 是否注册成功
private boolean registered = false;
// 设备ID
private String devId;
// 创建时间
private final long creationTime;
// 协议版本号
private Integer protocolVersion;
private Header header;
protected Session(Channel channel) {
this.channel = channel;
this.creationTime = System.currentTimeMillis();
}
public void writeObject(Object message) {
log.info("<<<<<<<<<< cmd{},{}", this, message);
channel.writeAndFlush(message);
}
/**
* 获得下一个流水号
*
* @return 流水号
*/
public int nextSerialNo() {
int current;
int next;
do {
current = serialNo.get();
next = current > 0xffff ? 0 : current;
} while (!serialNo.compareAndSet(current, next + 1));
return next;
}
/**
* 注册session
*
* @param devId 设备ID
*/
public void register(String devId, Integer version, Header header) {
this.devId = devId;
this.registered = true;
this.protocolVersion = version;
this.header = header;
SessionManager.INSTANCE.put(devId, this);
}
/**
* 获取设备号
*
* @return 设备号
*/
public String getDevId() {
return devId;
}
public boolean isRegistered() {
return registered;
}
public long getCreationTime() {
return creationTime;
}
public Integer getProtocolVersion() {
return protocolVersion;
}
public Header getHeader() {
return header;
}
@Override
public String toString() {
return "[" +
"devId=" + devId +
", reg=" + registered +
", version=" + protocolVersion +
",ip=" + channel.remoteAddress() +
']';
}
}