// Licensed to the Apache Software Foundation (ASF) under one // or more contributor license agreements. See the NOTICE file // distributed with this work for additional information // regarding copyright ownership. The ASF licenses this file // to you under the Apache License, Version 2.0 (the // "License"); you may not use this file except in compliance // with the License. You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, // software distributed under the License is distributed on an // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY // KIND, either express or implied. See the License for the // specific language governing permissions and limitations // under the License. #include #include #include #include #include #include #include #include using arrow::Status; namespace { Status RunMain(int argc, char** argv) { const char* csv_filename = "test.csv"; const char* arrow_filename = "test.arrow"; std::cerr << "* Reading CSV file '" << csv_filename << "' into table" << std::endl; ARROW_ASSIGN_OR_RAISE(auto input_file, arrow::io::ReadableFile::Open(csv_filename)); ARROW_ASSIGN_OR_RAISE(auto csv_reader, arrow::csv::TableReader::Make( arrow::io::default_io_context(), input_file, arrow::csv::ReadOptions::Defaults(), arrow::csv::ParseOptions::Defaults(), arrow::csv::ConvertOptions::Defaults())); ARROW_ASSIGN_OR_RAISE(auto table, csv_reader->Read()); std::cerr << "* Read table:" << std::endl; ARROW_RETURN_NOT_OK(arrow::PrettyPrint(*table, {}, &std::cerr)); std::cerr << "* Writing table into Arrow IPC file '" << arrow_filename << "'" << std::endl; ARROW_ASSIGN_OR_RAISE(auto output_file, arrow::io::FileOutputStream::Open(arrow_filename)); ARROW_ASSIGN_OR_RAISE(auto batch_writer, arrow::ipc::MakeFileWriter(output_file, table->schema())); ARROW_RETURN_NOT_OK(batch_writer->WriteTable(*table)); ARROW_RETURN_NOT_OK(batch_writer->Close()); return Status::OK(); } } // namespace int main(int argc, char** argv) { Status st = RunMain(argc, argv); if (!st.ok()) { std::cerr << st << std::endl; return 1; } return 0; }