| // 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 "./arrow_types.h" |
| |
| using Rcpp::CharacterVector; |
| using Rcpp::List_; |
| |
| #if defined(ARROW_R_WITH_ARROW) |
| |
| // [[arrow::export]] |
| std::shared_ptr<arrow::csv::ReadOptions> csv___ReadOptions__initialize(List_ options) { |
| auto res = |
| std::make_shared<arrow::csv::ReadOptions>(arrow::csv::ReadOptions::Defaults()); |
| res->use_threads = options["use_threads"]; |
| res->block_size = options["block_size"]; |
| return res; |
| } |
| |
| inline char get_char(CharacterVector x) { return CHAR(STRING_ELT(x, 0))[0]; } |
| |
| // [[arrow::export]] |
| std::shared_ptr<arrow::csv::ParseOptions> csv___ParseOptions__initialize(List_ options) { |
| auto res = |
| std::make_shared<arrow::csv::ParseOptions>(arrow::csv::ParseOptions::Defaults()); |
| res->delimiter = get_char(options["delimiter"]); |
| res->quoting = options["quoting"]; |
| res->quote_char = get_char(options["quote_char"]); |
| res->double_quote = options["double_quote"]; |
| res->escape_char = get_char(options["escape_char"]); |
| res->newlines_in_values = options["newlines_in_values"]; |
| res->header_rows = options["header_rows"]; |
| res->ignore_empty_lines = options["ignore_empty_lines"]; |
| return res; |
| } |
| |
| // [[arrow::export]] |
| std::shared_ptr<arrow::csv::ConvertOptions> csv___ConvertOptions__initialize( |
| List_ options) { |
| auto res = std::make_shared<arrow::csv::ConvertOptions>( |
| arrow::csv::ConvertOptions::Defaults()); |
| res->check_utf8 = options["check_utf8"]; |
| return res; |
| } |
| |
| // [[arrow::export]] |
| std::shared_ptr<arrow::csv::TableReader> csv___TableReader__Make( |
| const std::shared_ptr<arrow::io::InputStream>& input, |
| const std::shared_ptr<arrow::csv::ReadOptions>& read_options, |
| const std::shared_ptr<arrow::csv::ParseOptions>& parse_options, |
| const std::shared_ptr<arrow::csv::ConvertOptions>& convert_options) { |
| std::shared_ptr<arrow::csv::TableReader> table_reader; |
| STOP_IF_NOT_OK(arrow::csv::TableReader::Make(arrow::default_memory_pool(), input, |
| *read_options, *parse_options, |
| *convert_options, &table_reader)); |
| return table_reader; |
| } |
| |
| // [[arrow::export]] |
| std::shared_ptr<arrow::Table> csv___TableReader__Read( |
| const std::shared_ptr<arrow::csv::TableReader>& table_reader) { |
| std::shared_ptr<arrow::Table> table; |
| STOP_IF_NOT_OK(table_reader->Read(&table)); |
| return table; |
| } |
| |
| #endif |