package com.moral.api.kafka.consumer;
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import com.alibaba.fastjson.JSON;
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import com.moral.api.websocket.SingleDeviceServer;
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import org.apache.kafka.clients.consumer.Consumer;
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import org.apache.kafka.clients.consumer.ConsumerRecord;
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import org.apache.kafka.common.TopicPartition;
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import org.springframework.kafka.annotation.KafkaListener;
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import org.springframework.kafka.listener.ConsumerSeekAware;
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import org.springframework.stereotype.Component;
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import java.util.Map;
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import java.util.concurrent.CopyOnWriteArraySet;
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/**
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* @ClassName SecondsDataConsumer1
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* @Description TODO
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* @Author 陈凯裕
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* @Date 2021/6/15 14:49
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* @Version TODO
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**/
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@Component
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public class SecondDataConsumer implements ConsumerSeekAware {
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@KafkaListener(topics = "second_data",groupId = "SecondsDataGroup3")
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public void listen(ConsumerRecord<String, String> record , Consumer consumer) throws Exception {
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String messageStr = record.value();
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Map<String,String> message = (Map<String,String>)JSON.parse(messageStr);
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System.out.println(message);
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CopyOnWriteArraySet<SingleDeviceServer> sockets = SingleDeviceServer.sockets;
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for (SingleDeviceServer socket : sockets) {
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//判断消息书否数据该socket
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socket.sendMessage(message.toString());
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}
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System.out.println(message);
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}
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@Override
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public void registerSeekCallback(ConsumerSeekCallback consumerSeekCallback) {
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}
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//consumer回调函数，设置从最新的offset开始消费
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@Override
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public void onPartitionsAssigned(Map<TopicPartition, Long> map, ConsumerSeekCallback consumerSeekCallback) {
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map.forEach((t, o) -> consumerSeekCallback.seekToEnd(t.topic(), t.partition()));
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}
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@Override
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public void onIdleContainer(Map<TopicPartition, Long> map, ConsumerSeekCallback consumerSeekCallback) {
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}
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}
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