/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
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* See the License for the specific language governing permissions and
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*/
package org.apache.beam.runners.direct;
import org.apache.beam.runners.core.construction.PTransformReplacements;
import org.apache.beam.runners.core.construction.SingleInputOutputOverrideFactory;
import org.apache.beam.sdk.runners.AppliedPTransform;
import org.apache.beam.sdk.runners.PTransformOverrideFactory;
import org.apache.beam.sdk.transforms.GroupByKey;
import org.apache.beam.sdk.values.KV;
import org.apache.beam.sdk.values.PCollection;
/** A {@link PTransformOverrideFactory} for {@link GroupByKey} PTransforms. */
final class DirectGroupByKeyOverrideFactory<K, V>
extends SingleInputOutputOverrideFactory<
PCollection<KV<K, V>>, PCollection<KV<K, Iterable<V>>>, GroupByKey<K, V>> {
@Override
public PTransformReplacement<PCollection<KV<K, V>>, PCollection<KV<K, Iterable<V>>>>
getReplacementTransform(
AppliedPTransform<
PCollection<KV<K, V>>, PCollection<KV<K, Iterable<V>>>, GroupByKey<K, V>>
transform) {
return PTransformReplacement.of(
PTransformReplacements.getSingletonMainInput(transform),
new DirectGroupByKey<>(transform.getTransform()));
}
}