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.DataOutput;
  import java.io.IOException;
  import java.util.List;
  
  import org.apache.asterix.external.input.filter.embedder.IExternalFilterValueEmbedder;
  import org.apache.asterix.external.input.record.reader.hdfs.parquet.converter.ParquetConverterContext;
  import org.apache.hadoop.conf.Configuration;
  import org.apache.hyracks.api.exceptions.Warning;
  import org.apache.hyracks.data.std.api.IValueReference;
  import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;
  import org.apache.parquet.schema.GroupType;
  
  public class RootConverter extends ObjectConverter {
      private final ArrayBackedValueStorage rootBuffer;
  
      public RootConverter(GroupType parquetType, IExternalFilterValueEmbedder valueEmbedder, Configuration configuration,
              List<Warning> warnings) throws IOException {
          super(null, -1, parquetType, new ParquetConverterContext(configuration, valueEmbedder, warnings));
          this.rootBuffer = new ArrayBackedValueStorage();
      }
  
      @Override
      protected DataOutput getParentDataOutput() {
          rootBuffer.reset();
          return rootBuffer.getDataOutput();
      }
  
      @Override
      protected boolean isRoot() {
          return true;
      }
  
      public IValueReference getRecord() {
          return rootBuffer;
      }
  
  }
  