text: /*
   * 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.
   */
  
  #pragma once
  
  #include <arrow-glib/arrow-glib.h>
  
  G_BEGIN_DECLS
  
  #define GPARQUET_TYPE_ARROW_FILE_READER (gparquet_arrow_file_reader_get_type())
  G_DECLARE_DERIVABLE_TYPE(GParquetArrowFileReader,
                           gparquet_arrow_file_reader,
                           GPARQUET,
                           ARROW_FILE_READER,
                           GObject)
  struct _GParquetArrowFileReaderClass
  {
    GObjectClass parent_class;
  };
  
  GParquetArrowFileReader *
  gparquet_arrow_file_reader_new_arrow(GArrowSeekableInputStream *source,
                                       GError **error);
  GParquetArrowFileReader *
  gparquet_arrow_file_reader_new_path(const gchar *path,
                                      GError **error);
  
  GArrowTable *
  gparquet_arrow_file_reader_read_table(GParquetArrowFileReader *reader,
                                        GError **error);
  
  GArrowSchema *
  gparquet_arrow_file_reader_get_schema(GParquetArrowFileReader *reader,
                                        GError **error);
  
  GArrowChunkedArray *
  gparquet_arrow_file_reader_read_column_data(GParquetArrowFileReader *reader,
                                              gint i,
                                              GError **error);
  
  gint
  gparquet_arrow_file_reader_get_n_row_groups(GParquetArrowFileReader *reader);
  
  void
  gparquet_arrow_file_reader_set_use_threads(GParquetArrowFileReader *reader,
                                             gboolean use_threads);
  
  G_END_DECLS
  