Function WriteStructBatch

cpp/src/arrow/adapters/orc/util.cc:703–730

}

Status WriteStructBatch(const Array& array, int64_t orc_offset,
                        liborc::ColumnVectorBatch* column_vector_batch) {
  std::shared_ptr<Array> array_ = MakeArray(array.data());
  std::shared_ptr<StructArray> struct_array(checked_pointer_cast<StructArray>(array_));
  auto batch = checked_cast<liborc::StructVectorBatch*>(column_vector_batch);
  std::size_t size = array.type()->fields().size();
  int64_t arrow_length = array.length();
  int64_t running_arrow_offset = 0, running_orc_offset = orc_offset;
  // First fill fields of ColumnVectorBatch
  if (array.null_count()) {
    batch->hasNulls = true;
  }
  for (; running_arrow_offset < arrow_length;
       running_orc_offset++, running_arrow_offset++) {
    if (array.IsNull(running_arrow_offset)) {
      batch->notNull[running_orc_offset] = false;
    } else {
      batch->notNull[running_orc_offset] = true;
    }
  }
  // Fill the fields
  for (std::size_t i = 0; i < size; i++) {
    batch->fields[i]->resize(orc_offset + arrow_length);
    RETURN_NOT_OK(WriteBatch(*(struct_array->field(static_cast<int>(i))), orc_offset,
                             batch->fields[i]));
  }
  return Status::OK();
}

template <class ArrayType>
Status WriteListBatch(const Array& array, int64_t orc_offset,