Github user soumitrak commented on a diff in the pull request:
https://github.com/apache/spark/pull/2665#discussion_r20199347
--- Diff:
streaming/src/test/java/org/apache/spark/streaming/JavaAPISuite.java ---
@@ -1241,6 +1243,49 @@ public void testUpdateStateByKey() {
@SuppressWarnings("unchecked")
@Test
+ public void testUpdateStateByKeyWithInitial() {
+ List<List<Tuple2<String, Integer>>> inputData = stringIntKVStream;
+
+ List<Tuple2<String, Integer>> initial = Arrays.asList (
+ new Tuple2<String, Integer> ("california", 1),
+ new Tuple2<String, Integer> ("new york", 2));
+
+ JavaRDD<Tuple2<String, Integer>> tmpRDD =
ssc.sparkContext().parallelize(initial);
+ JavaPairRDD<String, Integer> initialRDD = JavaPairRDD.fromJavaRDD
(tmpRDD);
+
+ List<List<Tuple2<String, Integer>>> expected = Arrays.asList(
+ Arrays.asList(new Tuple2<String, Integer>("california", 5),
+ new Tuple2<String, Integer>("new york", 7)),
+ Arrays.asList(new Tuple2<String, Integer>("california", 15),
+ new Tuple2<String, Integer>("new york", 11)),
+ Arrays.asList(new Tuple2<String, Integer>("california", 15),
+ new Tuple2<String, Integer>("new york", 11)));
+
+ JavaDStream<Tuple2<String, Integer>> stream =
JavaTestUtils.attachTestInputStream(ssc, inputData, 1);
+ JavaPairDStream<String, Integer> pairStream =
JavaPairDStream.fromJavaDStream(stream);
+
+ JavaPairDStream<String, Integer> updated = pairStream.updateStateByKey(
+ new Function2<List<Integer>, Optional<Integer>,
Optional<Integer>>() {
+ @Override
--- End diff --
I don't have any other change to do. Actually I copied the previous method.
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