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   * 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.spark.structuredstreaming.translation.batch;
  
  import static org.apache.beam.repackaged.core.org.apache.commons.lang3.ArrayUtils.EMPTY_BYTE_ARRAY;
  
  import org.apache.beam.runners.spark.structuredstreaming.translation.TransformTranslator;
  import org.apache.beam.sdk.coders.ByteArrayCoder;
  import org.apache.beam.sdk.transforms.Impulse;
  import org.apache.beam.sdk.transforms.windowing.GlobalWindow;
  import org.apache.beam.sdk.values.PBegin;
  import org.apache.beam.sdk.values.PCollection;
  import org.apache.beam.sdk.values.WindowedValue;
  import org.apache.beam.sdk.values.WindowedValues;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.ImmutableList;
  import org.apache.spark.sql.Dataset;
  
  class ImpulseTranslatorBatch extends TransformTranslator<PBegin, PCollection<byte[]>, Impulse> {
  
    ImpulseTranslatorBatch() {
      super(0);
    }
  
    @Override
    public void translate(Impulse transform, Context cxt) {
      Dataset<WindowedValue<byte[]>> dataset =
          cxt.createDataset(
              ImmutableList.of(WindowedValues.valueInGlobalWindow(EMPTY_BYTE_ARRAY)),
              cxt.windowedEncoder(ByteArrayCoder.of(), GlobalWindow.Coder.INSTANCE));
      cxt.putDataset(cxt.getOutput(), dataset);
    }
  }
  