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 com.aliyun.odps.table.record.accessor;
  
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.arrow.vector.complex.ListVector;
  
  import com.aliyun.odps.table.arrow.accessor.ArrowArrayAccessor;
  import com.aliyun.odps.table.arrow.accessor.ArrowVectorAccessor;
  import com.aliyun.odps.type.ArrayTypeInfo;
  import com.aliyun.odps.type.TypeInfo;
  
  public class ArrowArrayAccessorImpl {
  
      public static class ArrowArrayAccessorForRecord extends ArrowArrayAccessor<List<Object>> {
  
          private final boolean isExtension;
          private final TypeInfo elementTypeInfo;
          private final ArrowVectorAccessor dataAccessor;
  
          public ArrowArrayAccessorForRecord(ListVector vector, TypeInfo typeInfo, boolean isExtension) {
              super(vector);
              this.isExtension = isExtension;
              this.elementTypeInfo = ((ArrayTypeInfo) typeInfo).getElementTypeInfo();
              this.dataAccessor = ArrowToRecordConverter.
                      createColumnVectorAccessor(vector.getDataVector(), elementTypeInfo, isExtension);
          }
  
          @Override
          protected List<Object> getArrayData(int offset, int length) {
              List<Object> list = new ArrayList<>();
              try {
                  for (int i = 0; i < length; i++) {
                      list.add(ArrowToRecordConverter.getData(dataAccessor,
                              elementTypeInfo, offset + i, isExtension));
                  }
                  return list;
              } catch (Exception e) {
                  throw new RuntimeException("Could not get the array", e);
              }
          }
      }
  }
  