package com.moral.webSocketServer;
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import com.alibaba.fastjson.JSON;
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import com.moral.entity.Device;
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import com.moral.entity.Sensor;
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import com.moral.service.DeviceService;
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import com.moral.service.SensorService;
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import com.moral.util.RabbitMQUtils;
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import com.rabbitmq.client.*;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.stereotype.Component;
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import org.springframework.util.ObjectUtils;
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import javax.annotation.PostConstruct;
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import javax.websocket.*;
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import javax.websocket.server.PathParam;
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import javax.websocket.server.ServerEndpoint;
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import java.io.IOException;
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import java.util.HashMap;
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import java.util.LinkedHashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.concurrent.ConcurrentHashMap;
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@Slf4j
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@ServerEndpoint("/web/AQIWebSocket/{param}")
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@Component
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public class BSAQIWebSocketServer {
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public static SensorService sensorService;
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public static DeviceService deviceService;
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/**
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* concurrent包的线程安全Set，用来存放每个客户端对应的WebSocket对象。
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*/
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private static ConcurrentHashMap<String, BSAQIWebSocketServer> webSocketMap = new ConcurrentHashMap<>();
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/**
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* 与某个客户端的连接会话，需要通过它来给客户端发送数据
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*/
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private Session session;
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private String orgId;
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private String accountId;
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private String mac;
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private final String exchange = "screens_data";
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private static Map<String, Sensor> sensors;
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@PostConstruct
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public void init() {
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sensors = new HashMap<>();
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List<Sensor> allSensors = sensorService.getAllSensors();
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for (Sensor sensor : allSensors) {
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sensors.put(sensor.getSensorKey(), sensor);
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}
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}
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@OnOpen
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public void onOpen(Session session, @PathParam("param") String param) {
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this.session = session;
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String[] params = param.split("&");
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this.accountId = params[0];
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this.orgId = params[1];
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this.mac = params[2];
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if (webSocketMap.containsKey(accountId)) {
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webSocketMap.remove(accountId);
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webSocketMap.put(accountId, this);
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} else {
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webSocketMap.put(accountId, this);
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}
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try {
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Connection connection = RabbitMQUtils.getConnection();
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final Channel channel = connection.createChannel();
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//生成临时队列
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String queue = channel.queueDeclare().getQueue();
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//交换机与队列通过routingKey进行绑定
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String routingKey = "";
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routingKey = this.orgId + "." + this.mac;
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channel.queueBind(queue, exchange, routingKey);
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//消费消息,手动确认模式。
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channel.basicQos(30);//预先读取数
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channel.basicConsume(queue, false, new DefaultConsumer(channel) {
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@Override
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public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
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try{
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//对从MQ中取出的数据做转换，并且发送风速到客户端
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Map message = (Map) JSON.parse((String) JSON.parse(new String(body)));
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Device device = deviceService.getDeviceByMac(mac,false);
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sendDeviceInfo(message, device);
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//手动确认
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channel.basicAck(envelope.getDeliveryTag(), true);
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//判断socket是否已经断开
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if (!webSocketMap.containsKey(accountId)) {
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RabbitMQUtils.closeConnectionChannel(connection, channel);
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}
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}catch (Exception e){
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log.error(e.getMessage());
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RabbitMQUtils.closeConnectionChannel(connection, channel);
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}
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}
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});
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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@OnClose
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public void onClose() {
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if (webSocketMap.containsKey(accountId)) {
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webSocketMap.remove(accountId);
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}
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}
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//接收到客户端消息操作
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@OnMessage
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public void onMessage(String message, Session session) {
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}
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@OnError
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public void onError(Session session, Throwable error) {
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log.error(error.getMessage());
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}
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public void sendMessage(String message) throws IOException {
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try {
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if (session.isOpen()) {
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this.session.getBasicRemote().sendText(message);
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}
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} catch (IOException e) {
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//log.error(e.getMessage());
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}
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}
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/**
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* @Description: 接收前端mac以及accountid，传送前端指定mac号的设备信息
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* @Param: [param]
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* @return: void
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* @Author: 陈凯裕
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* @Date: 2020/9/30
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*/
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private void sendDeviceInfo(Map<String, Object> param, Device device) {
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try {
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Map<String, Object> sortMap = new LinkedHashMap<>();
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//先放名称地址，用于排序
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sortMap.put("名称", device.getName());
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sortMap.put("地址", device.getAddress());
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//将传感器代号转化为汉字
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param.forEach((key, value) -> {
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Sensor sensor = sensors.get(key);
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if (!ObjectUtils.isEmpty(sensor)) {
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String unit = ObjectUtils.isEmpty(sensor.getUnit()) ? "" : (String) sensor.getUnit();
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sortMap.put(sensor.getName(), value + unit);
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}
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});
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sendMessage(JSON.toJSONString(sortMap));
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} catch (IOException e) {
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log.error("根据mac发送设备数据异常");
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}
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}
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}
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