static int MakePages()

in src/parquet/test-util.h [392:441]

• 45 lines of code
• 9 McCabe index (conditional complexity)

static int MakePages(const ColumnDescriptor* d, int num_pages, int levels_per_page,
                     vector<int16_t>& def_levels, vector<int16_t>& rep_levels,
                     vector<typename Type::c_type>& values, vector<uint8_t>& buffer,
                     vector<shared_ptr<Page>>& pages,
                     Encoding::type encoding = Encoding::PLAIN) {
  int num_levels = levels_per_page * num_pages;
  int num_values = 0;
  uint32_t seed = 0;
  int16_t zero = 0;
  int16_t max_def_level = d->max_definition_level();
  int16_t max_rep_level = d->max_repetition_level();
  vector<int> values_per_page(num_pages, levels_per_page);
  // Create definition levels
  if (max_def_level > 0) {
    def_levels.resize(num_levels);
    random_numbers(num_levels, seed, zero, max_def_level, def_levels.data());
    for (int p = 0; p < num_pages; p++) {
      int num_values_per_page = 0;
      for (int i = 0; i < levels_per_page; i++) {
        if (def_levels[i + p * levels_per_page] == max_def_level) {
          num_values_per_page++;
          num_values++;
        }
      }
      values_per_page[p] = num_values_per_page;
    }
  } else {
    num_values = num_levels;
  }
  // Create repitition levels
  if (max_rep_level > 0) {
    rep_levels.resize(num_levels);
    random_numbers(num_levels, seed, zero, max_rep_level, rep_levels.data());
  }
  // Create values
  values.resize(num_values);
  if (encoding == Encoding::PLAIN) {
    InitValues<typename Type::c_type>(num_values, values, buffer);
    PaginatePlain<Type>(d, values, def_levels, max_def_level, rep_levels, max_rep_level,
                        levels_per_page, values_per_page, pages);
  } else if (encoding == Encoding::RLE_DICTIONARY ||
             encoding == Encoding::PLAIN_DICTIONARY) {
    // Calls InitValues and repeats the data
    InitDictValues<typename Type::c_type>(num_values, levels_per_page, values, buffer);
    PaginateDict<Type>(d, values, def_levels, max_def_level, rep_levels, max_rep_level,
                       levels_per_page, values_per_page, pages);
  }

  return num_values;
}