taegeonum commented on a change in pull request #123: [NEMO-129] Support Beam's
WindowedWordCount example
URL: https://github.com/apache/incubator-nemo/pull/123#discussion_r225755579
##########
File path:
compiler/frontend/beam/src/main/java/org/apache/nemo/compiler/frontend/beam/PipelineTranslator.java
##########
@@ -198,11 +196,29 @@ private static void parDoMultiOutputTranslator(final
TranslationContext ctx,
pValueWithTupleTag.getKey()));
}
+ private static GroupByKeyTransform createGBKTransform(
+ final TranslationContext ctx,
+ final TransformVertex transformVertex) {
+ final AppliedPTransform pTransform =
transformVertex.getNode().toAppliedPTransform(PIPELINE.get());
+ final PCollection<?> mainInput = (PCollection<?>)
+
Iterables.getOnlyElement(TransformInputs.nonAdditionalInputs(pTransform));
+ final TupleTag mainOutputTag = new TupleTag<>("main output");
+
+ return new GroupByKeyTransform(
+ getOutputCoders(pTransform),
+ mainOutputTag,
+ Collections.emptyList(),
+ mainInput.getWindowingStrategy(),
+ Collections.emptyList(), /* side inputs */
Review comment:
Done
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