iemejia commented on a change in pull request #13018:
URL: https://github.com/apache/beam/pull/13018#discussion_r500538346
##########
File path:
runners/spark/src/main/java/org/apache/beam/runners/spark/translation/streaming/StreamingTransformTranslator.java
##########
@@ -115,6 +119,31 @@ public String toNativeString() {
};
}
+ private static TransformEvaluator<Impulse> impulse() {
+ return new TransformEvaluator<Impulse>() {
+ @Override
+ public void evaluate(Impulse transform, EvaluationContext context) {
+ ClassTag<WindowedValue<byte[]>> classTag =
ClassTag$.MODULE$.apply(WindowedValue.class);
+ JavaRDD<WindowedValue<byte[]>> rdd =
+ context
+ .getSparkContext()
+ .parallelize(
+
Collections.singletonList(WindowedValue.valueInGlobalWindow(new byte[0])));
+ ConstantInputDStream<WindowedValue<byte[]>> inputStream =
+ new ConstantInputDStream<>(context.getStreamingContext().ssc(),
rdd.rdd(), classTag);
+ JavaDStream<WindowedValue<byte[]>> stream = new
JavaDStream<>(inputStream, classTag);
+ UnboundedDataset<byte[]> output =
+ new UnboundedDataset<>(stream,
Collections.singletonList(inputStream.id()));
+ context.putDataset(transform, output);
+ }
+
+ @Override
+ public String toNativeString() {
+ return "sparkContext.<impulse>()";
Review comment:
s/sparkContext/streamingContext just for convention. I applied this
change on merge.
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