PARQUET-2394: Use computeIfAbsent in MessageColumnIO (apache#1217)

* PARQUET-2394: Use `computeIfAbsent` in `MessageColumnIO` * Fix identation
CalvinKris · Dec 4, 2023 · 3df625e · 3df625e
1 parent 44b5622
commit 3df625e
Showing 1 changed file with 1 addition and 6 deletions.
diff --git a/parquet-column/src/main/java/org/apache/parquet/io/MessageColumnIO.java b/parquet-column/src/main/java/org/apache/parquet/io/MessageColumnIO.java
@@ -227,12 +227,7 @@ private void buildGroupToLeafWriterMap(PrimitiveColumnIO primitive, ColumnWriter
     }
 
     private List<ColumnWriter> getLeafWriters(GroupColumnIO group) {
-      List<ColumnWriter> writers = groupToLeafWriter.get(group);
-      if (writers == null) {
-        writers = new ArrayList<>();
-        groupToLeafWriter.put(group, writers);
-      }
-      return writers;
+      return groupToLeafWriter.computeIfAbsent(group, k -> new ArrayList<>());
     }
 
     public MessageColumnIORecordConsumer(ColumnWriteStore columns) {