[iotdb] branch master updated: Improve ineffective check in ColumnEncoderFactory

[jackietien]

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jackietien pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/iotdb.git


The following commit(s) were added to refs/heads/master by this push:
     new d7fdea51f5 Improve ineffective check in ColumnEncoderFactory
d7fdea51f5 is described below

commit d7fdea51f52676a8790aa5002f96ccc4d5059ed5
Author: Jackie Tien <jackietie...@gmail.com>
AuthorDate: Tue Apr 11 21:55:51 2023 +0800

    Improve ineffective check in ColumnEncoderFactory
---
 .../iotdb/tsfile/read/common/block/column/ColumnEncoderFactory.java  | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git 
a/tsfile/src/main/java/org/apache/iotdb/tsfile/read/common/block/column/ColumnEncoderFactory.java
 
b/tsfile/src/main/java/org/apache/iotdb/tsfile/read/common/block/column/ColumnEncoderFactory.java
index 18c93afeea..2ac585643a 100644
--- 
a/tsfile/src/main/java/org/apache/iotdb/tsfile/read/common/block/column/ColumnEncoderFactory.java
+++ 
b/tsfile/src/main/java/org/apache/iotdb/tsfile/read/common/block/column/ColumnEncoderFactory.java
@@ -35,9 +35,10 @@ public class ColumnEncoderFactory {
   }
 
   public static ColumnEncoder get(ColumnEncoding columnEncoding) {
-    if (!encodingToEncoder.containsKey(columnEncoding)) {
+    ColumnEncoder res = encodingToEncoder.get(columnEncoding);
+    if (res == null) {
       throw new IllegalArgumentException("Unsupported column encoding: " + 
columnEncoding);
     }
-    return encodingToEncoder.get(columnEncoding);
+    return res;
   }
 }