(tsfile) branch tsFile_v4 updated: Use TreeMap to guarantee order

[jiangtian]

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

jiangtian pushed a commit to branch tsFile_v4
in repository https://gitbox.apache.org/repos/asf/tsfile.git


The following commit(s) were added to refs/heads/tsFile_v4 by this push:
     new 320ce456 Use TreeMap to guarantee order
320ce456 is described below

commit 320ce456a90c69662b85ed68e812d937f386c2f5
Author: jt2594838 <jt2594...@163.com>
AuthorDate: Fri Apr 12 15:37:07 2024 +0800

    Use TreeMap to guarantee order
---
 .../org/apache/tsfile/file/metadata/MetadataIndexConstructor.java    | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git 
a/tsfile/src/main/java/org/apache/tsfile/file/metadata/MetadataIndexConstructor.java
 
b/tsfile/src/main/java/org/apache/tsfile/file/metadata/MetadataIndexConstructor.java
index 875efe79..77b07897 100644
--- 
a/tsfile/src/main/java/org/apache/tsfile/file/metadata/MetadataIndexConstructor.java
+++ 
b/tsfile/src/main/java/org/apache/tsfile/file/metadata/MetadataIndexConstructor.java
@@ -19,6 +19,7 @@
 
 package org.apache.tsfile.file.metadata;
 
+import java.util.TreeSet;
 import org.apache.tsfile.common.conf.TSFileConfig;
 import org.apache.tsfile.common.conf.TSFileDescriptor;
 import org.apache.tsfile.file.IMetadataIndexEntry;
@@ -91,11 +92,11 @@ public class MetadataIndexConstructor {
 
   public static Map<String, Map<IDeviceID, MetadataIndexNode>> 
splitDeviceByTable(
       Map<IDeviceID, MetadataIndexNode> deviceMetadataIndexMap) {
-    Map<String, Map<IDeviceID, MetadataIndexNode>> result = new HashMap<>();
+    Map<String, Map<IDeviceID, MetadataIndexNode>> result = new TreeMap<>();
     for (Entry<IDeviceID, MetadataIndexNode> entry : 
deviceMetadataIndexMap.entrySet()) {
       IDeviceID deviceID = entry.getKey();
       String tableName = deviceID.getTableName();
-      result.computeIfAbsent(tableName, tName -> new 
HashMap<>()).put(deviceID, entry.getValue());
+      result.computeIfAbsent(tableName, tName -> new 
TreeMap<>()).put(deviceID, entry.getValue());
     }
     return result;
   }