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   * Licensed to the Apache Software Foundation (ASF) under one
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   * distributed with this work for additional information
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   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
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   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
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   * See the License for the specific language governing permissions and
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  package org.apache.beam.runners.spark;
  
  import java.util.List;
  import org.apache.beam.runners.spark.translation.streaming.CreateStreamingSparkView;
  import org.apache.beam.sdk.runners.AppliedPTransform;
  import org.apache.beam.sdk.runners.PTransformOverride;
  import org.apache.beam.sdk.transforms.PTransform;
  import org.apache.beam.sdk.util.construction.PTransformMatchers;
  import org.apache.beam.sdk.util.construction.PTransformTranslation;
  import org.apache.beam.sdk.util.construction.SplittableParDo;
  import org.apache.beam.sdk.util.construction.SplittableParDoNaiveBounded;
  import org.apache.beam.sdk.util.construction.UnsupportedOverrideFactory;
  import org.apache.beam.sdk.values.PCollection;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.ImmutableList;
  
  /** {@link PTransform} overrides for Spark runner. */
  @SuppressWarnings({
    "rawtypes" // TODO(https://github.com/apache/beam/issues/20447)
  })
  public final class SparkTransformOverrides {
    public static List<PTransformOverride> getDefaultOverrides(boolean streaming) {
      ImmutableList.Builder<PTransformOverride> builder = ImmutableList.builder();
      // TODO: [https://github.com/apache/beam/issues/19107] Support @RequiresStableInput on Spark
      // runner
      builder.add(
          PTransformOverride.of(
              PTransformMatchers.requiresStableInputParDoMulti(),
              UnsupportedOverrideFactory.withMessage(
                  "Spark runner currently doesn't support @RequiresStableInput annotation.")));
      if (!streaming) {
        builder
            .add(
                PTransformOverride.of(
                    PTransformMatchers.splittableParDo(), new SplittableParDo.OverrideFactory()))
            .add(
                PTransformOverride.of(
                    PTransformMatchers.urnEqualTo(PTransformTranslation.SPLITTABLE_PROCESS_KEYED_URN),
                    new SplittableParDoNaiveBounded.OverrideFactory()));
      } else {
        builder.add(
            PTransformOverride.of(
                // For streaming pipelines, this override is applied only when the PTransform has the
                // same URN
                // as PTransformTranslation.CREATE_VIEW_TRANSFORM and at least one of its inputs is
                // UNBOUNDED
                PTransformMatchers.urnEqualTo(PTransformTranslation.CREATE_VIEW_TRANSFORM_URN)
                    .and(
                        (AppliedPTransform<?, ?, ?> appliedPTransform) ->
                            appliedPTransform.getInputs().values().stream()
                                .anyMatch(
                                    e -> e.isBounded().equals(PCollection.IsBounded.UNBOUNDED))),
                CreateStreamingSparkView.Factory.INSTANCE));
      }
      return builder.build();
    }
  }
  