gaborgsomogyi commented on a change in pull request #26935:
URL: https://github.com/apache/spark/pull/26935#discussion_r512699722
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/state/HDFSBackedStateStoreProvider.scala
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@@ -79,6 +78,23 @@ private[state] class HDFSBackedStateStoreProvider extends
StateStoreProvider wit
// java.util.ConcurrentModificationException
type MapType = java.util.concurrent.ConcurrentHashMap[UnsafeRow, UnsafeRow]
+ class HDFSBackedReadStateStore(val version: Long, map: MapType)
+ extends ReadStateStore {
+
+ override def id: StateStoreId =
HDFSBackedStateStoreProvider.this.stateStoreId
+
+ override def get(key: UnsafeRow): UnsafeRow = map.get(key)
+
+ override def iterator(): Iterator[UnsafeRowPair] = {
+ val unsafeRowPair = new UnsafeRowPair()
+ map.entrySet.asScala.iterator.map { entry =>
+ unsafeRowPair.withRows(entry.getKey, entry.getValue)
+ }
+ }
+
+ override def abort(): Unit = {}
+ }
Review comment:
Nit: Just a final thing, don't we need a `toString` like
`HDFSBackedStateStore`?
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