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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 com.alibaba.fastjson.util.TypeUtils;
import org.apache.flink.api.java.tuple.Tuple2;
import org.apache.flink.api.java.tuple.Tuple5;
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.LinkedHashMap;
import java.util.Map;
import static com.zdjizhi.common.FlowWriteConfig.LOG_AGGREGATE_DURATION;
/**
* @author 94976
*/
public class ConnProcessFunction 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 {
Tuple5<Long, Long, Long, Long, Long> values = connAggregate(elements);
if (values != null) {
Map<String, Object> result = new LinkedHashMap<>();
result.put("start_time", values.f0);
result.put("end_time", values.f1);
result.put("src_ip", keys.f0);
result.put("dst_ip", keys.f1);
result.put("sessions", values.f2);
result.put("packets", values.f3);
result.put("bytes", values.f4);
out.collect(result);
logger.debug("获取中间聚合结果：{}", result.toString());
}
} catch (Exception e) {
logger.error("获取中间聚合结果失败,middleResult: {}", e);
}
}
private Tuple5<Long, Long, Long, Long, Long> connAggregate(Iterable<Map<String, Object>> elements) {
long sessions = 0L;
long packets = 0L;
long bytes = 0L;
long startTime = DateUtil.currentSeconds();
long endTime = DateUtil.currentSeconds();
try {
for (Map<String, Object> newSketchLog : elements) {
long connStartTime = Convert.toLong(newSketchLog.get("conn_start_time"));
if (connStartTime > 0) {
sessions++;
packets = packets + TypeUtils.castToLong(newSketchLog.get("total_cs_pkts")) + TypeUtils.castToLong(newSketchLog.get("total_sc_pkts"));
bytes = bytes + TypeUtils.castToLong(newSketchLog.get("total_cs_bytes")) + TypeUtils.castToLong(newSketchLog.get("total_sc_bytes"));
startTime = Math.min(connStartTime, startTime);
endTime = Math.max(connStartTime, endTime);
}
}
return Tuple5.of(startTime, endTime + LOG_AGGREGATE_DURATION, sessions, packets, bytes);
} catch (Exception e) {
logger.error("聚合中间结果集失败 {}", e);
}
return null;
}
}
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