优化代码：去除无使用的类

src/main/java/com/zdjizhi/etl/connection/Ip2IpGraphProcessFunction.java

@@ -0,0 +1,44 @@
+package com.zdjizhi.etl.connection;
+
+import cn.hutool.core.convert.Convert;
+import cn.hutool.core.date.DateUtil;
+import cn.hutool.log.Log;
+import cn.hutool.log.LogFactory;
+import org.apache.flink.api.java.tuple.Tuple2;
+import org.apache.flink.streaming.api.functions.windowing.ProcessWindowFunction;
+import org.apache.flink.streaming.api.windowing.windows.TimeWindow;
+import org.apache.flink.util.Collector;
+
+import java.util.HashMap;
+import java.util.Map;
+
+
+/**
+ * 对ip去重
+ */
+public class Ip2IpGraphProcessFunction extends ProcessWindowFunction<Map<String, Object>, Map<String, Object>, Tuple2<String, String>, TimeWindow> {
+
+    private static final Log logger = LogFactory.get();
+
+    @Override
+    public void process(Tuple2<String, String> keys, Context context, Iterable<Map<String, Object>> elements, Collector<Map<String, Object>> out) {
+
+        try {
+            long lastFoundTime = DateUtil.currentSeconds();
+            for (Map<String, Object> log : elements) {
+                long connStartTimetime = Convert.toLong(log.get("start_time"));
+                lastFoundTime = connStartTimetime > lastFoundTime ? connStartTimetime : lastFoundTime;
+            }
+            Map<String, Object> newLog = new HashMap<>();
+            newLog.put("src_ip", keys.f0);
+            newLog.put("dst_ip", keys.f1);
+            newLog.put("last_found_time", lastFoundTime);
+            out.collect(newLog);
+            logger.debug("获取中间聚合结果：{}", newLog.toString());
+
+        } catch (Exception e) {
+            logger.error("获取中间聚合结果失败,middleResult: {}", e);
+        }
+    }
+
+}