package com.zdjizhi.etl.connection; import org.apache.flink.api.java.functions.KeySelector; import org.apache.flink.api.java.tuple.Tuple2; import java.util.Map; /** * @description: * @author: zhq * @create: 2022-07-05 **/ public class IpKeysSelector implements KeySelector, Tuple2> { @Override public Tuple2 getKey(Map log) throws Exception { return Tuple2.of( String.valueOf(log.get("src_ip")), String.valueOf(log.get("dst_ip"))); } }