ljz2051 commented on code in PR #24640:
URL: https://github.com/apache/flink/pull/24640#discussion_r1584361582


##########
flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/filemerging/FileMergingSnapshotManagerBase.java:
##########
@@ -575,8 +576,51 @@ private void createManagedDirectory(Path managedPath) {
     @Override
     public void close() throws IOException {}
 
+    // ------------------------------------------------------------------------
+    //  restore
+    // ------------------------------------------------------------------------
+
+    @Override
+    public void restoreStateHandles(
+            long checkpointId, SubtaskKey subtaskKey, 
Stream<SegmentFileStateHandle> stateHandles) {
+
+        Set<LogicalFile> uploadedLogicalFiles;
+        synchronized (lock) {
+            uploadedLogicalFiles =
+                    uploadedStates.computeIfAbsent(checkpointId, id -> new 
HashSet<>());
+        }
+
+        stateHandles.forEach(
+                fileHandle -> {
+                    PhysicalFile physicalFile =
+                            new PhysicalFile(
+                                    null,
+                                    fileHandle.getFilePath(),
+                                    physicalFileDeleter,
+                                    fileHandle.getScope());

Review Comment:
   Yes, I have refactor this method. Please review 
FileMergingSnapshotManagerBase#restoreStateHandles.



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