diff options
| author | zhanghongqing <[email protected]> | 2022-07-12 19:24:53 +0800 |
|---|---|---|
| committer | zhanghongqing <[email protected]> | 2022-07-12 19:24:53 +0800 |
| commit | 06042db9b11bf3a17eaec455b3daf5b31de679d7 (patch) | |
| tree | f27821ec8a5037a9ddcbdc82d31dfeb46233efad /src/main/java/com/zdjizhi/common/CKWindow.java | |
| parent | c1b70a6da06a7a55123b7fb904e421b59c230a34 (diff) | |
优化代码:使用windowAll做数据批量操作
Diffstat (limited to 'src/main/java/com/zdjizhi/common/CKWindow.java')
| -rw-r--r-- | src/main/java/com/zdjizhi/common/CKWindow.java | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/main/java/com/zdjizhi/common/CKWindow.java b/src/main/java/com/zdjizhi/common/CKWindow.java new file mode 100644 index 0000000..b7c7b8c --- /dev/null +++ b/src/main/java/com/zdjizhi/common/CKWindow.java @@ -0,0 +1,24 @@ +package com.zdjizhi.common; + +import org.apache.flink.streaming.api.functions.windowing.AllWindowFunction; +import org.apache.flink.streaming.api.windowing.windows.TimeWindow; +import org.apache.flink.util.Collector; + +import java.util.ArrayList; +import java.util.Iterator; +import java.util.List; +import java.util.Map; + +public class CKWindow implements AllWindowFunction<Map<String, Object>, List<Map<String, Object>>, TimeWindow> { + + @Override + public void apply(TimeWindow timeWindow, Iterable<Map<String, Object>> iterable, Collector<List<Map<String, Object>>> out) throws Exception { + Iterator<Map<String, Object>> iterator = iterable.iterator(); + List<Map<String, Object>> batchLog = new ArrayList<>(); + while (iterator.hasNext()) { + Map<String, Object> next = iterator.next(); + batchLog.add(next); + } + out.collect(batchLog); + } +} |
