Method Init

cpp/src/arrow/json/reader.cc:248–253

        task_group_(std::move(task_group)) {}

  Status Init(std::shared_ptr<io::InputStream> input) {
    ARROW_ASSIGN_OR_RAISE(auto it,
                          io::MakeInputStreamIterator(input, read_options_.block_size));
    return MakeReadaheadIterator(std::move(it), task_group_->parallelism())
        .Value(&buffer_iterator_);
  }

  Result<std::shared_ptr<Table>> Read() override {
    auto block_it = MakeChunkingIterator(std::move(buffer_iterator_),