Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/2760#discussion_r18853766
--- Diff: core/src/main/scala/org/apache/spark/FutureAction.scala ---
@@ -271,3 +274,55 @@ class ComplexFutureAction[T] extends FutureAction[T] {
def jobIds = jobs
}
+
+private[spark]
+class JavaFutureActionWrapper[S, T](futureAction: FutureAction[S],
converter: S => T)
+ extends JavaFutureAction[T] {
+
+ import scala.collection.JavaConverters._
+
+ override def isCancelled: Boolean = futureAction.isCancelled
+
+ override def isDone: Boolean = {
+ // According to java.util.Future's Javadoc, this returns True if the
task was completed,
+ // whether that completion was due to succesful execution, an
exception, or a cancellation.
+ futureAction.isCancelled || futureAction.isCompleted
+ }
+
+ override def jobIds(): java.util.List[java.lang.Integer] = {
+ new java.util.ArrayList(futureAction.jobIds.map(x => new
Integer(x)).asJava)
--- End diff --
Hmmm... kinda sucks you have to make the conversion manually.
I'd use `Collections.unmodifiableList()` and `Integer.valueOf()` here,
though.
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