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.
   */
  package org.apache.beam.runners.spark.structuredstreaming.translation.batch;
  
  import java.io.IOException;
  import java.util.function.Supplier;
  import org.apache.beam.runners.spark.structuredstreaming.io.BoundedDatasetFactory;
  import org.apache.beam.runners.spark.structuredstreaming.translation.TransformTranslator;
  import org.apache.beam.sdk.io.BoundedSource;
  import org.apache.beam.sdk.options.PipelineOptions;
  import org.apache.beam.sdk.transforms.windowing.GlobalWindow;
  import org.apache.beam.sdk.util.construction.SplittableParDo;
  import org.apache.beam.sdk.values.PBegin;
  import org.apache.beam.sdk.values.PCollection;
  import org.apache.beam.sdk.values.WindowedValue;
  import org.apache.spark.sql.Encoder;
  import org.apache.spark.sql.SparkSession;
  
  /**
   * Translator for a {@link SplittableParDo.PrimitiveBoundedRead} that creates a Dataset via an RDD
   * to avoid an additional serialization roundtrip.
   */
  class ReadSourceTranslatorBatch<T>
      extends TransformTranslator<PBegin, PCollection<T>, SplittableParDo.PrimitiveBoundedRead<T>> {
  
    ReadSourceTranslatorBatch() {
      super(0.05f);
    }
  
    @Override
    public void translate(SplittableParDo.PrimitiveBoundedRead<T> transform, Context cxt)
        throws IOException {
      SparkSession session = cxt.getSparkSession();
      BoundedSource<T> source = transform.getSource();
      Supplier<PipelineOptions> options = cxt.getOptionsSupplier();
  
      Encoder<WindowedValue<T>> encoder =
          cxt.windowedEncoder(source.getOutputCoder(), GlobalWindow.Coder.INSTANCE);
  
      cxt.putDataset(
          cxt.getOutput(),
          BoundedDatasetFactory.createDatasetFromRDD(session, source, options, encoder),
          false);
    }
  }
  