package com.moral.api.kafka.consumer; import com.alibaba.fastjson.JSON; import com.moral.api.entity.Device; import com.moral.api.entity.Sensor; import com.moral.api.websocket.SingleDeviceServer; import org.apache.kafka.clients.consumer.Consumer; import org.apache.kafka.clients.consumer.ConsumerRecord; import org.apache.kafka.common.TopicPartition; import org.springframework.kafka.annotation.KafkaListener; import org.springframework.kafka.listener.ConsumerSeekAware; import org.springframework.stereotype.Component; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.concurrent.CopyOnWriteArraySet; /** * @ClassName SecondsDataConsumer1 * @Description TODO * @Author 陈凯裕 * @Date 2021/6/15 14:49 * @Version TODO **/ @Component public class SecondDataConsumer implements ConsumerSeekAware { @KafkaListener(topics = "second_data",groupId = "SecondsDataGroup3") public void listen(ConsumerRecord record , Consumer consumer) throws Exception { String messageStr = record.value(); Map message = (Map)JSON.parse(messageStr); //System.out.println(message); CopyOnWriteArraySet sockets = SingleDeviceServer.sockets; for (SingleDeviceServer socket : sockets) { //判断消息书否数据该socket //取出基本信息 String mac = socket.getMac(); Map devicesInfo = socket.getDevicesInfo(); Device device = devicesInfo.get(mac); //创建最终消息对象 Map resultMessgae = new HashMap<>(); //拼接单位 List sensors = device.getVersion().getSensors();//获取型号所有因子信息 for (Sensor sensor : sensors) { String code = sensor.getCode(); String showUnit = sensor.getShowUnit(); //单位转换 //拼接单位 String value = message.get(code); value+=showUnit; resultMessgae.put(sensor.getCode(),value); } resultMessgae.put("DataTime",message.get("DataTime")); socket.sendMessage(JSON.toJSONString(resultMessgae)); } } @Override public void registerSeekCallback(ConsumerSeekCallback consumerSeekCallback) { } //consumer回调函数,设置从最新的offset开始消费 @Override public void onPartitionsAssigned(Map map, ConsumerSeekCallback consumerSeekCallback) { map.forEach((t, o) -> consumerSeekCallback.seekToEnd(t.topic(), t.partition())); } @Override public void onIdleContainer(Map map, ConsumerSeekCallback consumerSeekCallback) { } }