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.arrow.adapter.avro.producers;
  
  import java.io.IOException;
  import org.apache.arrow.vector.FieldVector;
  import org.apache.arrow.vector.complex.FixedSizeListVector;
  import org.apache.avro.io.Encoder;
  
  /**
   * Producer that produces array values from a {@link FixedSizeListVector}, writes data to an avro
   * encoder.
   */
  public class AvroFixedSizeListProducer extends BaseAvroProducer<FixedSizeListVector> {
  
    private final Producer<? extends FieldVector> delegate;
  
    /** Instantiate an AvroFixedSizeListProducer. */
    public AvroFixedSizeListProducer(
        FixedSizeListVector vector, Producer<? extends FieldVector> delegate) {
      super(vector);
      this.delegate = delegate;
    }
  
    @Override
    public void produce(Encoder encoder) throws IOException {
  
      encoder.writeArrayStart();
      encoder.setItemCount(vector.getListSize());
  
      for (int i = 0; i < vector.getListSize(); i++) {
        encoder.startItem();
        delegate.produce(encoder);
      }
  
      encoder.writeArrayEnd();
      currentIndex++;
    }
  
    @Override
    public void skipNull() {
      super.skipNull();
      // Child vector contains a fixed number of elements for each entry
      int childIndex = currentIndex * vector.getListSize();
      delegate.setPosition(childIndex);
    }
  
    @Override
    public void setPosition(int index) {
      if (index < 0 || index > vector.getValueCount()) {
        throw new IllegalArgumentException("Index out of bounds");
      }
      super.setPosition(index);
      // Child vector contains a fixed number of elements for each entry
      int childIndex = currentIndex * vector.getListSize();
      delegate.setPosition(childIndex);
    }
  
    @Override
    @SuppressWarnings("unchecked")
    public void resetValueVector(FixedSizeListVector vector) {
      ((Producer<FieldVector>) delegate).resetValueVector(vector.getDataVector());
    }
  }
  