[iotdb] 01/01: Improve ineffective check in ColumnEncoderFactory

[jackietien]

This is an automated email from the ASF dual-hosted git repository.

jackietien pushed a commit to branch NeedLessContains1.1
in repository https://gitbox.apache.org/repos/asf/iotdb.git

commit afb76ac2e658cde3d648fdd6177ae629ee4261fd
Author: JackieTien97 <jackietie...@gmail.com>
AuthorDate: Tue Apr 11 17:09:37 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;
   }
 }