| package com.doumee.jtt808.web.endpoint; | 
|   | 
| import io.github.yezhihao.netmc.core.model.Message; | 
| import io.github.yezhihao.netmc.session.Session; | 
| import io.github.yezhihao.netmc.session.SessionListener; | 
| import org.yzh.protocol.basics.JTMessage; | 
| import com.doumee.jtt808.web.model.entity.DeviceDO; | 
| import com.doumee.jtt808.web.model.enums.SessionKey; | 
|   | 
| import java.util.function.BiConsumer; | 
|   | 
| public class JTSessionListener implements SessionListener { | 
|   | 
|     /** | 
|      * 下行消息拦截器 | 
|      */ | 
|     private static final BiConsumer<Session, Message> requestInterceptor = (session, message) -> { | 
|         JTMessage request = (JTMessage) message; | 
|         request.setClientId(session.getClientId()); | 
|         request.setSerialNo(session.nextSerialNo()); | 
|   | 
|         if (request.getMessageId() == 0) { | 
|             request.setMessageId(request.reflectMessageId()); | 
|         } | 
|   | 
|         DeviceDO device = SessionKey.getDevice(session); | 
|         if (device != null) { | 
|             int protocolVersion = device.getProtocolVersion(); | 
|             if (protocolVersion > 0) { | 
|                 request.setVersion(true); | 
|                 request.setProtocolVersion(protocolVersion); | 
|             } | 
|         } | 
|     }; | 
|   | 
|     /** | 
|      * 设备连接 | 
|      */ | 
|     @Override | 
|     public void sessionCreated(Session session) { | 
|         session.requestInterceptor(requestInterceptor); | 
|     } | 
|   | 
|     /** | 
|      * 设备注册 | 
|      */ | 
|     @Override | 
|     public void sessionRegistered(Session session) { | 
|     } | 
|   | 
|     /** | 
|      * 设备离线 | 
|      */ | 
|     @Override | 
|     public void sessionDestroyed(Session session) { | 
|     } | 
| } |