std::shared_ptr Comparator::Make()

in src/parquet/util/comparison.cc [27:64]

• 38 lines of code
• 14 McCabe index (conditional complexity)

std::shared_ptr<Comparator> Comparator::Make(const ColumnDescriptor* descr) {
  if (SortOrder::SIGNED == descr->sort_order()) {
    switch (descr->physical_type()) {
      case Type::BOOLEAN:
        return std::make_shared<CompareDefaultBoolean>();
      case Type::INT32:
        return std::make_shared<CompareDefaultInt32>();
      case Type::INT64:
        return std::make_shared<CompareDefaultInt64>();
      case Type::FLOAT:
        return std::make_shared<CompareDefaultFloat>();
      case Type::DOUBLE:
        return std::make_shared<CompareDefaultDouble>();
      case Type::BYTE_ARRAY:
        return std::make_shared<CompareDefaultByteArray>();
      case Type::FIXED_LEN_BYTE_ARRAY:
        return std::make_shared<CompareDefaultFLBA>(descr->type_length());
      default:
        ParquetException::NYI("Signed Compare not implemented");
    }
  } else if (SortOrder::UNSIGNED == descr->sort_order()) {
    switch (descr->physical_type()) {
      case Type::INT32:
        return std::make_shared<CompareUnsignedInt32>();
      case Type::INT64:
        return std::make_shared<CompareUnsignedInt64>();
      case Type::BYTE_ARRAY:
        return std::make_shared<CompareUnsignedByteArray>();
      case Type::FIXED_LEN_BYTE_ARRAY:
        return std::make_shared<CompareUnsignedFLBA>(descr->type_length());
      default:
        ParquetException::NYI("Unsigned Compare not implemented");
    }
  } else {
    throw ParquetException("UNKNOWN Sort Order");
  }
  return nullptr;
}