content: /*
   * 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,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
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  package org.apache.beam.runners.direct;
  
  import org.apache.beam.runners.core.KeyedWorkItem;
  import org.apache.beam.runners.core.SplittableParDoViaKeyedWorkItems.GBKIntoKeyedWorkItems;
  import org.apache.beam.sdk.runners.AppliedPTransform;
  import org.apache.beam.sdk.util.construction.PTransformReplacements;
  import org.apache.beam.sdk.util.construction.SingleInputOutputOverrideFactory;
  import org.apache.beam.sdk.values.KV;
  import org.apache.beam.sdk.values.PCollection;
  
  /** Provides an implementation of {@link GBKIntoKeyedWorkItems} for the Direct Runner. */
  class DirectGBKIntoKeyedWorkItemsOverrideFactory<KeyT, InputT>
      extends SingleInputOutputOverrideFactory<
          PCollection<KV<KeyT, InputT>>,
          PCollection<KeyedWorkItem<KeyT, InputT>>,
          GBKIntoKeyedWorkItems<KeyT, InputT>> {
    @Override
    public PTransformReplacement<
            PCollection<KV<KeyT, InputT>>, PCollection<KeyedWorkItem<KeyT, InputT>>>
        getReplacementTransform(
            AppliedPTransform<
                    PCollection<KV<KeyT, InputT>>,
                    PCollection<KeyedWorkItem<KeyT, InputT>>,
                    GBKIntoKeyedWorkItems<KeyT, InputT>>
                transform) {
      return PTransformReplacement.of(
          PTransformReplacements.getSingletonMainInput(transform),
          new DirectGroupByKey.DirectGroupByKeyOnly<>());
    }
  }
  