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.asterix.external.input.record.reader.hdfs.parquet.converter.nested;
  
  import java.io.IOException;
  
  import org.apache.asterix.builders.IAsterixListBuilder;
  import org.apache.asterix.external.input.record.reader.hdfs.parquet.converter.AbstractComplexConverter;
  import org.apache.asterix.external.input.record.reader.hdfs.parquet.converter.IFieldValue;
  import org.apache.asterix.external.input.record.reader.hdfs.parquet.converter.ParquetConverterContext;
  import org.apache.asterix.external.input.record.reader.hdfs.parquet.converter.primitve.PrimitiveConverterProvider;
  import org.apache.asterix.om.pointables.base.DefaultOpenFieldType;
  import org.apache.asterix.om.types.ATypeTag;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  import org.apache.parquet.io.api.PrimitiveConverter;
  import org.apache.parquet.schema.GroupType;
  import org.apache.parquet.schema.PrimitiveType;
  
  public class ArrayConverter extends AbstractComplexConverter {
      private IAsterixListBuilder builder;
  
      public ArrayConverter(AbstractComplexConverter parent, int index, GroupType parquetType,
              ParquetConverterContext context) throws IOException {
          super(parent, index, parquetType, context);
      }
  
      public ArrayConverter(AbstractComplexConverter parent, String stringFieldName, int index, GroupType parquetType,
              ParquetConverterContext context) throws IOException {
          super(parent, stringFieldName, index, parquetType, context);
      }
  
      @Override
      public void start() {
          tempStorage = context.enterCollection();
          builder = context.getCollectionBuilder(DefaultOpenFieldType.NESTED_OPEN_AORDERED_LIST_TYPE);
      }
  
      @Override
      public void end() {
          closeDirectRepeatedChildren();
          try {
              builder.write(getParentDataOutput(), true);
          } catch (IOException e) {
              throw new IllegalStateException(e);
          }
          addThisValueToParent();
          context.exitCollection(tempStorage, builder);
          tempStorage = null;
          builder = null;
      }
  
      @Override
      public ATypeTag getTypeTag() {
          return ATypeTag.ARRAY;
      }
  
      @Override
      public void addValue(IFieldValue value) {
          try {
              builder.addItem(tempStorage);
          } catch (HyracksDataException e) {
              throw new IllegalStateException(e);
          }
      }
  
      @Override
      protected PrimitiveConverter createAtomicConverter(GroupType type, int index) {
          try {
              PrimitiveType primitiveType = type.getType(index).asPrimitiveType();
              return PrimitiveConverterProvider.createPrimitiveConverter(primitiveType, this, index, context);
          } catch (IOException e) {
              throw new IllegalStateException(e);
          }
      }
  
      @Override
      protected ArrayConverter createArrayConverter(GroupType type, int index) {
          try {
              GroupType arrayType = type.getType(index).asGroupType();
              return new ArrayConverter(this, index, arrayType, context);
          } catch (IOException e) {
              throw new IllegalStateException(e);
          }
      }
  
      @Override
      protected ObjectConverter createObjectConverter(GroupType type, int index) {
          try {
              GroupType objectType = type.getType(index).asGroupType();
              return new ObjectConverter(this, index, objectType, context);
          } catch (IOException e) {
              throw new IllegalStateException(e);
          }
      }
  }
  