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.writer.printer.parquet;
  
  import org.apache.parquet.schema.LogicalTypeAnnotation;
  import org.apache.parquet.schema.PrimitiveType;
  import org.apache.parquet.schema.Types;
  
  public class ParquetSchemaBuilderUtils {
  
      public static Types.BaseGroupBuilder<?, ?> getGroupChild(Types.Builder parent) {
          if (parent instanceof Types.BaseGroupBuilder) {
              return ((Types.BaseGroupBuilder<?, ?>) parent).optionalGroup();
          } else if (parent instanceof Types.BaseListBuilder) {
              return ((Types.BaseListBuilder<?, ?>) parent).optionalGroupElement();
          } else {
              return null;
          }
      }
  
      public static Types.BaseListBuilder<?, ?> getListChild(Types.Builder parent) {
          if (parent instanceof Types.BaseGroupBuilder) {
              return ((Types.BaseGroupBuilder<?, ?>) parent).optionalList();
          } else if (parent instanceof Types.BaseListBuilder) {
              return ((Types.BaseListBuilder<?, ?>) parent).optionalListElement();
          } else {
              return null;
          }
      }
  
      public static Types.Builder<?, ?> getPrimitiveChild(Types.Builder parent, PrimitiveType.PrimitiveTypeName type,
              LogicalTypeAnnotation annotation) {
          if (parent instanceof Types.BaseGroupBuilder) {
              return ((Types.BaseGroupBuilder<?, ?>) parent).optional(type).as(annotation);
          } else if (parent instanceof Types.BaseListBuilder) {
              return ((Types.BaseListBuilder<?, ?>) parent).optionalElement(type).as(annotation);
          } else {
              return null;
          }
      }
  }
  