| 640 | /// string. |
| 641 | template <typename T> |
| 642 | ArrayVectorPtr nestedArrayVectorFromJson( |
| 643 | const std::vector<std::string>& jsonArrays, |
| 644 | const TypePtr& arrayType = ARRAY(CppToType<T>::create())) { |
| 645 | std::vector<std::optional<std::vector<std::optional<T>>>> baseVector; |
| 646 | std::vector<vector_size_t> offsets; |
| 647 | std::vector<vector_size_t> nulls; |
| 648 | const std::vector<std::optional<T>> empty; |
| 649 | int offset = 0; |
| 650 | for (auto i = 0; i < jsonArrays.size(); i++) { |
| 651 | const auto& jsonArray = jsonArrays.at(i); |
| 652 | BOLT_CHECK(!jsonArray.empty()); |
| 653 | const folly::dynamic arraysObject = folly::parseJson(jsonArray); |
| 654 | offsets.push_back(offset); |
| 655 | if (arraysObject.isNull()) { |
| 656 | // Null array. |
| 657 | nulls.push_back(i); |
| 658 | continue; |
| 659 | } |
| 660 | for (const auto& nestedArray : arraysObject) { |
| 661 | if (nestedArray.isNull()) { |
| 662 | // Null nested array |
| 663 | baseVector.push_back(std::nullopt); |
| 664 | } else { |
| 665 | std::vector<std::optional<T>> elements; |
| 666 | appendElementsFromJsonArray(nestedArray, elements); |
| 667 | baseVector.push_back(elements); |
| 668 | } |
| 669 | } |
| 670 | offset += arraysObject.size(); |
| 671 | } |
| 672 | auto baseArrayVector = arrayVectorNullable<T>(baseVector, arrayType); |
| 673 | return arrayVector(offsets, baseArrayVector, nulls); |
| 674 | } |
| 675 | |
| 676 | ArrayVectorPtr allNullArrayVector( |
| 677 | vector_size_t size, |