Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/5400#discussion_r27923630
--- Diff:
core/src/main/scala/org/apache/spark/util/io/ByteArrayChunkOutputStream.scala
---
@@ -91,4 +95,41 @@ class ByteArrayChunkOutputStream(chunkSize: Int) extends
OutputStream {
ret
}
}
+
+ /**
+ * get a copy of the data between the two endpoints
+ */
+ def slice(start: Long, until: Long): Array[Byte] = {
+ require((until - start) < Integer.MAX_VALUE, "max slice length =
Integer.MAX_VALUE")
+ var chunkStart = 0L
+ var chunkIdx = 0
+ var foundStart = false
+ val length = (until - start).toInt
+ val result = new Array[Byte](length)
+ while (!foundStart) {
+ val nextSize = chunkStart + chunks(chunkIdx).size
+ if (nextSize > start) {
+ foundStart = true
+ }
+ else {
--- End diff --
nit: move to previous line
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