echauchot commented on a change in pull request #15267:
URL: https://github.com/apache/beam/pull/15267#discussion_r704217234
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File path:
runners/spark/src/main/java/org/apache/beam/runners/spark/structuredstreaming/translation/batch/GroupByKeyTranslatorBatch.java
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@@ -17,74 +17,95 @@
*/
package org.apache.beam.runners.spark.structuredstreaming.translation.batch;
-import java.io.Serializable;
-import org.apache.beam.runners.core.InMemoryStateInternals;
-import org.apache.beam.runners.core.StateInternals;
-import org.apache.beam.runners.core.StateInternalsFactory;
-import org.apache.beam.runners.core.SystemReduceFn;
+import java.util.ArrayList;
+import java.util.List;
+import org.apache.beam.runners.core.Concatenate;
import
org.apache.beam.runners.spark.structuredstreaming.translation.AbstractTranslationContext;
import
org.apache.beam.runners.spark.structuredstreaming.translation.TransformTranslator;
-import
org.apache.beam.runners.spark.structuredstreaming.translation.batch.functions.GroupAlsoByWindowViaOutputBufferFn;
import
org.apache.beam.runners.spark.structuredstreaming.translation.helpers.EncoderHelpers;
import
org.apache.beam.runners.spark.structuredstreaming.translation.helpers.KVHelpers;
+import org.apache.beam.sdk.coders.CannotProvideCoderException;
import org.apache.beam.sdk.coders.Coder;
-import org.apache.beam.sdk.coders.IterableCoder;
import org.apache.beam.sdk.coders.KvCoder;
+import org.apache.beam.sdk.transforms.Combine;
import org.apache.beam.sdk.transforms.PTransform;
+import org.apache.beam.sdk.transforms.windowing.BoundedWindow;
import org.apache.beam.sdk.util.WindowedValue;
import org.apache.beam.sdk.values.KV;
import org.apache.beam.sdk.values.PCollection;
import org.apache.beam.sdk.values.WindowingStrategy;
+import org.apache.spark.api.java.function.FlatMapFunction;
import org.apache.spark.sql.Dataset;
import org.apache.spark.sql.KeyValueGroupedDataset;
+import scala.Tuple2;
class GroupByKeyTranslatorBatch<K, V>
- implements TransformTranslator<
- PTransform<PCollection<KV<K, V>>, PCollection<KV<K, Iterable<V>>>>> {
+ implements TransformTranslator<
Review comment:
we use spotless for this runner as well as it is in the same module as
the other runner. Spotless seems happy with this indentation but I'll change it
to conform to the other indentation used in the other places.
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