HeartSaVioR commented on a change in pull request #28887:
URL: https://github.com/apache/spark/pull/28887#discussion_r443275238
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File path:
external/kafka-0-10-sql/src/main/scala/org/apache/spark/sql/kafka010/KafkaContinuousReader.scala
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@@ -70,15 +71,17 @@ class KafkaContinuousReader(
private var offset: Offset = _
override def setStartOffset(start: ju.Optional[Offset]): Unit = {
- offset = start.orElse {
- val offsets = initialOffsets match {
- case EarliestOffsetRangeLimit =>
KafkaSourceOffset(offsetReader.fetchEarliestOffsets())
- case LatestOffsetRangeLimit =>
KafkaSourceOffset(offsetReader.fetchLatestOffsets(None))
- case SpecificOffsetRangeLimit(p) =>
offsetReader.fetchSpecificOffsets(p, reportDataLoss)
+ offset = start.orElseGet(new Supplier[Offset] {
Review comment:
Nice finding! It's quite confusing on Scala-friendly developers.
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