Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/7825#discussion_r36258722
--- Diff:
extras/kinesis-asl/src/main/scala/org/apache/spark/streaming/kinesis/KinesisReceiver.scala
---
@@ -165,6 +199,81 @@ private[kinesis] class KinesisReceiver(
workerId = null
}
+ /** Add records of the given shard to the current block being generated
*/
+ private[kinesis] def addRecords(shardId: String, records:
java.util.List[Record]): Unit = {
+ if (records.size > 0) {
+ val dataIterator = records.iterator().map { record =>
+ val byteBuffer = record.getData()
+ val byteArray = new Array[Byte](byteBuffer.remaining())
+ byteBuffer.get(byteArray)
+ byteArray
+ }
+ val metadata = SequenceNumberRange(streamName, shardId,
+ records.get(0).getSequenceNumber(), records.get(records.size() -
1).getSequenceNumber())
+ blockGenerator.addMultipleDataWithCallback(dataIterator, metadata)
+
+ }
+ }
+
+ /** Get the latest sequence number for the given shard that can be
checkpointed through KCL */
+ private[kinesis] def getLatestSeqNumToCheckpoint(shardId: String):
Option[String] = {
+ shardIdToLatestStoredSeqNum.get(shardId)
+ }
+
+ /**
+ * Remember the range of sequence numbers that was added to the
currently active block.
+ * Internally, this is synchronized with
`finalizeRangesForCurrentBlock()`.
+ */
+ private def rememberAddedRange(range: SequenceNumberRange): Unit = {
+ seqNumRangesInCurrentBlock += range
+ }
+
+ /**
+ * Finalize the ranges added to the block that was active and prepare
the ranges buffer
+ * for next block. Internally, this is synchronized with
`rememberAddedRange()`.
+ */
+ private def finalizeRangesForCurrentBlock(blockId: StreamBlockId): Unit
= {
+ blockIdToSeqNumRanges(blockId) =
SequenceNumberRanges(seqNumRangesInCurrentBlock.toSeq)
--- End diff --
I think you should call `toIndexedSeq`. `toSeq` just returns itself for
ArrayBuffer. E.g.:
```
scala> val x = new scala.collection.mutable.ArrayBuffer[Int]
x: scala.collection.mutable.ArrayBuffer[Int] = ArrayBuffer()
scala> x eq x.toSeq
res0: Boolean = true
scala> x eq x.toIndexedSeq
res1: Boolean = false
```
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