[GitHub] [spark] WeichenXu123 commented on a diff in pull request #41357: [SPARK-43790][PYSPARK][CONNECT][ML] Add `copyFromLocalToFS` API

["WeichenXu123 (via GitHub)" <gi...@apache.org>]

WeichenXu123 commented on code in PR #41357:
URL: https://github.com/apache/spark/pull/41357#discussion_r1209105558


##########
connector/connect/server/src/main/scala/org/apache/spark/sql/connect/service/SparkConnectAddArtifactsHandler.scala:
##########
@@ -89,6 +92,28 @@ class SparkConnectAddArtifactsHandler(val responseObserver: StreamObserver[AddAr
     artifactManager.addArtifact(holder, artifact.path, artifact.stagedPath, artifact.fragment)
   }
 
+  protected def uploadStagedArtifactToFS(artifact: StagedArtifact): Unit = {
+    try {
+      val hadoopConf = holder.session.sparkContext.hadoopConfiguration
+      assert(artifact.path.startsWith(forwardToFSPrefix))
+      val destFSPath = new FSPath(
+        Paths.get("/").resolve(artifact.path.subpath(1, artifact.path.getNameCount)).toString
+      )
+      val localPath = artifact.stagedPath
+      val fs = destFSPath.getFileSystem(hadoopConf)
+      fs.copyFromLocalFile(
+        false,
+        true,
+        new FSPath(localPath.toString),
+        destFSPath
+      )
+    } catch {
+      case e: java.io.IOException =>
+        // TODO: report failure in response message

Review Comment:
   Discussion: Shall we add a field in ArtifactResponse message for holding failure information here ?



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