zhangstar333 commented on code in PR #12492: URL: https://github.com/apache/doris/pull/12492#discussion_r966653604
########## be/src/vec/runtime/vparquet_writer.cpp: ########## @@ -0,0 +1,782 @@ +// 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 "vec/runtime/vparquet_writer.h" + +#include <arrow/array.h> +#include <arrow/status.h> +#include <time.h> + +#include "io/file_writer.h" +#include "util/mysql_global.h" +#include "util/types.h" +#include "vec/columns/column_nullable.h" +#include "vec/columns/column_string.h" +#include "vec/columns/column_vector.h" +#include "vec/data_types/data_type_nullable.h" +#include "vec/exprs/vexpr.h" + +namespace doris::vectorized { + +VParquetWriterWrapper::VParquetWriterWrapper(doris::FileWriter* file_writer, + const std::vector<VExprContext*>& output_vexpr_ctxs, + const std::map<std::string, std::string>& properties, + const std::vector<std::vector<std::string>>& schema, + bool output_object_data) + : _output_vexpr_ctxs(output_vexpr_ctxs), + _str_schema(schema), + _cur_written_rows(0), + _rg_writer(nullptr), + _output_object_data(output_object_data) { + _outstream = std::shared_ptr<ParquetOutputStream>(new ParquetOutputStream(file_writer)); + parse_properties(properties); + parse_schema(schema); + init_parquet_writer(); +} + +void VParquetWriterWrapper::parse_properties( + const std::map<std::string, std::string>& propertie_map) { + parquet::WriterProperties::Builder builder; + for (auto it = propertie_map.begin(); it != propertie_map.end(); it++) { + std::string property_name = it->first; + std::string property_value = it->second; + if (property_name == "compression") { + // UNCOMPRESSED, SNAPPY, GZIP, BROTLI, ZSTD, LZ4, LZO, BZ2 + if (property_value == "snappy") { + builder.compression(parquet::Compression::SNAPPY); + } else if (property_value == "gzip") { + builder.compression(parquet::Compression::GZIP); + } else if (property_value == "brotli") { + builder.compression(parquet::Compression::BROTLI); + } else if (property_value == "zstd") { + builder.compression(parquet::Compression::ZSTD); + } else if (property_value == "lz4") { + builder.compression(parquet::Compression::LZ4); + } else if (property_value == "lzo") { + builder.compression(parquet::Compression::LZO); + } else if (property_value == "bz2") { + builder.compression(parquet::Compression::BZ2); + } else { + builder.compression(parquet::Compression::UNCOMPRESSED); + } + } else if (property_name == "disable_dictionary") { + if (property_value == "true") { + builder.enable_dictionary(); + } else { + builder.disable_dictionary(); + } + } else if (property_name == "version") { + if (property_value == "v1") { + builder.version(parquet::ParquetVersion::PARQUET_1_0); + } else { + builder.version(parquet::ParquetVersion::PARQUET_2_LATEST); + } + } + } + _properties = builder.build(); +} + +Status VParquetWriterWrapper::parse_schema(const std::vector<std::vector<std::string>>& schema) { + parquet::schema::NodeVector fields; + for (auto column = schema.begin(); column != schema.end(); column++) { + std::string repetition_type = (*column)[0]; + parquet::Repetition::type parquet_repetition_type = parquet::Repetition::REQUIRED; + if (repetition_type.find("required") != std::string::npos) { + parquet_repetition_type = parquet::Repetition::REQUIRED; + } else if (repetition_type.find("repeated") != std::string::npos) { + parquet_repetition_type = parquet::Repetition::REPEATED; + } else if (repetition_type.find("optional") != std::string::npos) { + parquet_repetition_type = parquet::Repetition::OPTIONAL; + } else { + parquet_repetition_type = parquet::Repetition::UNDEFINED; + } + + std::string data_type = (*column)[1]; + parquet::Type::type parquet_data_type = parquet::Type::BYTE_ARRAY; + if (data_type == "boolean") { + parquet_data_type = parquet::Type::BOOLEAN; + } else if (data_type.find("int32") != std::string::npos) { + parquet_data_type = parquet::Type::INT32; + } else if (data_type.find("int64") != std::string::npos) { + parquet_data_type = parquet::Type::INT64; + } else if (data_type.find("int96") != std::string::npos) { + parquet_data_type = parquet::Type::INT96; + } else if (data_type.find("float") != std::string::npos) { + parquet_data_type = parquet::Type::FLOAT; + } else if (data_type.find("double") != std::string::npos) { + parquet_data_type = parquet::Type::DOUBLE; + } else if (data_type.find("byte_array") != std::string::npos) { + parquet_data_type = parquet::Type::BYTE_ARRAY; + } else if (data_type.find("fixed_len_byte_array") != std::string::npos) { + parquet_data_type = parquet::Type::FIXED_LEN_BYTE_ARRAY; + } else { + parquet_data_type = parquet::Type::UNDEFINED; + } + + std::string column_name = (*column)[2]; + fields.push_back(parquet::schema::PrimitiveNode::Make(column_name, parquet_repetition_type, + parquet::LogicalType::None(), + parquet_data_type)); + _schema = std::static_pointer_cast<parquet::schema::GroupNode>( + parquet::schema::GroupNode::Make("schema", parquet::Repetition::REQUIRED, fields)); + } + return Status::OK(); +} + +Status VParquetWriterWrapper::write(const Block& block) { + if (block.rows() == 0) { + return Status::OK(); + } + size_t sz = block.rows(); + try { + for (size_t i = 0; i < block.columns(); i++) { + auto& col = block.get_by_position(i).column; + auto& type = block.get_by_position(i).type; + switch (_output_vexpr_ctxs[i]->root()->type().type) { + case TYPE_BOOLEAN: { + if (_str_schema[i][1] != "boolean") { + return Status::InvalidArgument( + "project field type is boolean, " + "but the definition type of column {} is {}", + _str_schema[i][2], _str_schema[i][1]); + } + parquet::RowGroupWriter* rgWriter = get_rg_writer(); + parquet::BoolWriter* col_writer = + static_cast<parquet::BoolWriter*>(rgWriter->column(i)); + bool default_bool = false; + if (const auto* not_nullable_column = + check_and_get_column<const ColumnVector<UInt8>>(col.get())) { + col_writer->WriteBatch( + sz, nullptr, nullptr, + reinterpret_cast<const bool*>(not_nullable_column->get_data().data())); + } else if (const auto* nullable_column = + check_and_get_column<const ColumnNullable>(col.get())) { Review Comment: here check nullable column, it maybe placed on the top of switch, so that all cases not need to write check nullable code -- This is an automated message from the Apache Git Service. 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