HyukjinKwon commented on code in PR #41742:
URL: https://github.com/apache/spark/pull/41742#discussion_r1244047093
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core/src/main/scala/org/apache/spark/api/r/SerDe.scala:
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@@ -404,6 +404,22 @@ private[spark] object SerDe {
writeKeyValue(dos, k1.asInstanceOf[Object],
v1.asInstanceOf[Object], jvmObjectTracker)
}
+ // Handle Set - write as list
+ case v: java.util.Set[_] =>
+ writeType(dos, "list")
+ writeInt(dos, v.size)
+ val iter = v.iterator
+ while (iter.hasNext) {
+ val elem = iter.next()
+ writeObject(dos, elem.asInstanceOf[Object], jvmObjectTracker)
+ }
+ case v: scala.collection.Set[_] =>
+ writeType(dos, "list")
+ writeInt(dos, v.size)
+ v.foreach { elem =>
+ writeObject(dos, elem.asInstanceOf[Object], jvmObjectTracker)
+ }
Review Comment:
@juliuszsompolski I think I would just avoid adding this ser/de here but add
a method such as `org.apache.spark.api.r.RUtils.getJobTags(sc: SparkContext):
Array[String] = sc.getJobTags().toArray`, and invoke this in `context.R`.
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