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[Refactor](inverted index) add analyzer for inverted index to unify a…
…nalysis process
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be/src/olap/rowset/segment_v2/inverted_index/analyzer/analyzer.cpp
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| // 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. | ||
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| #include "olap/rowset/segment_v2/inverted_index/analyzer/analyzer.h" | ||
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| #include "CLucene.h" | ||
| #include "CLucene/analysis/LanguageBasedAnalyzer.h" | ||
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| #ifdef __clang__ | ||
| #pragma clang diagnostic push | ||
| #pragma clang diagnostic ignored "-Wshadow-field" | ||
| #endif | ||
| #include "CLucene/analysis/standard95/StandardAnalyzer.h" | ||
| #ifdef __clang__ | ||
| #pragma clang diagnostic pop | ||
| #endif | ||
| #include "olap/rowset/segment_v2/inverted_index/char_filter/char_filter_factory.h" | ||
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| namespace doris::segment_v2::inverted_index { | ||
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| std::unique_ptr<lucene::util::Reader> InvertedIndexAnalyzer::create_reader( | ||
| CharFilterMap& char_filter_map) { | ||
| std::unique_ptr<lucene::util::Reader> reader = | ||
| std::make_unique<lucene::util::SStringReader<char>>(); | ||
| if (!char_filter_map.empty()) { | ||
| reader = std::unique_ptr<lucene::util::Reader>(CharFilterFactory::create( | ||
| char_filter_map[INVERTED_INDEX_PARSER_CHAR_FILTER_TYPE], reader.release(), | ||
| char_filter_map[INVERTED_INDEX_PARSER_CHAR_FILTER_PATTERN], | ||
| char_filter_map[INVERTED_INDEX_PARSER_CHAR_FILTER_REPLACEMENT])); | ||
| } | ||
| return reader; | ||
| } | ||
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| std::unique_ptr<lucene::analysis::Analyzer> InvertedIndexAnalyzer::create_analyzer( | ||
| const InvertedIndexCtx* inverted_index_ctx) { | ||
| std::unique_ptr<lucene::analysis::Analyzer> analyzer; | ||
| auto analyser_type = inverted_index_ctx->parser_type; | ||
| if (analyser_type == InvertedIndexParserType::PARSER_STANDARD || | ||
| analyser_type == InvertedIndexParserType::PARSER_UNICODE) { | ||
| analyzer = std::make_unique<lucene::analysis::standard95::StandardAnalyzer>(); | ||
| } else if (analyser_type == InvertedIndexParserType::PARSER_ENGLISH) { | ||
| analyzer = std::make_unique<lucene::analysis::SimpleAnalyzer<char>>(); | ||
| } else if (analyser_type == InvertedIndexParserType::PARSER_CHINESE) { | ||
| auto chinese_analyzer = | ||
| std::make_unique<lucene::analysis::LanguageBasedAnalyzer>(L"chinese", false); | ||
| chinese_analyzer->initDict(config::inverted_index_dict_path); | ||
| auto mode = inverted_index_ctx->parser_mode; | ||
| if (mode == INVERTED_INDEX_PARSER_COARSE_GRANULARITY) { | ||
| chinese_analyzer->setMode(lucene::analysis::AnalyzerMode::Default); | ||
| } else { | ||
| chinese_analyzer->setMode(lucene::analysis::AnalyzerMode::All); | ||
| } | ||
| analyzer = std::move(chinese_analyzer); | ||
| } else { | ||
| // default | ||
| analyzer = std::make_unique<lucene::analysis::SimpleAnalyzer<char>>(); | ||
| } | ||
| // set lowercase | ||
| auto lowercase = inverted_index_ctx->lower_case; | ||
| if (lowercase == INVERTED_INDEX_PARSER_TRUE) { | ||
| analyzer->set_lowercase(true); | ||
| } else if (lowercase == INVERTED_INDEX_PARSER_FALSE) { | ||
| analyzer->set_lowercase(false); | ||
| } | ||
| // set stop words | ||
| auto stop_words = inverted_index_ctx->stop_words; | ||
| if (stop_words == "none") { | ||
| analyzer->set_stopwords(nullptr); | ||
| } else { | ||
| analyzer->set_stopwords(&lucene::analysis::standard95::stop_words); | ||
| } | ||
| return analyzer; | ||
| } | ||
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| void InvertedIndexAnalyzer::get_analyse_result(std::vector<std::string>& analyse_result, | ||
| lucene::util::Reader* reader, | ||
| lucene::analysis::Analyzer* analyzer, | ||
| const std::string& field_name, | ||
| InvertedIndexQueryType query_type, | ||
| bool drop_duplicates) { | ||
| analyse_result.clear(); | ||
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| std::wstring field_ws = StringUtil::string_to_wstring(field_name); | ||
| std::unique_ptr<lucene::analysis::TokenStream> token_stream( | ||
| analyzer->tokenStream(field_ws.c_str(), reader)); | ||
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| lucene::analysis::Token token; | ||
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| while (token_stream->next(&token)) { | ||
| if (token.termLength<char>() != 0) { | ||
| analyse_result.emplace_back(token.termBuffer<char>(), token.termLength<char>()); | ||
| } | ||
| } | ||
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| if (token_stream != nullptr) { | ||
| token_stream->close(); | ||
| } | ||
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| if (drop_duplicates && (query_type == InvertedIndexQueryType::MATCH_ANY_QUERY || | ||
| query_type == InvertedIndexQueryType::MATCH_ALL_QUERY)) { | ||
| std::set<std::string> unrepeated_result(analyse_result.begin(), analyse_result.end()); | ||
| analyse_result.assign(unrepeated_result.begin(), unrepeated_result.end()); | ||
| } | ||
| } | ||
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| } // namespace doris::segment_v2::inverted_index |
48 changes: 48 additions & 0 deletions
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be/src/olap/rowset/segment_v2/inverted_index/analyzer/analyzer.h
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,48 @@ | ||
| // 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. | ||
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| #pragma once | ||
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| #include <memory> | ||
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| #include "olap/inverted_index_parser.h" | ||
| #include "olap/rowset/segment_v2/inverted_index_query_type.h" | ||
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| namespace lucene { | ||
| namespace util { | ||
| class Reader; | ||
| } | ||
| namespace analysis { | ||
| class Analyzer; | ||
| } | ||
| } // namespace lucene | ||
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| namespace doris::segment_v2::inverted_index { | ||
| class InvertedIndexAnalyzer { | ||
| public: | ||
| static std::unique_ptr<lucene::util::Reader> create_reader(CharFilterMap& char_filter_map); | ||
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| static std::unique_ptr<lucene::analysis::Analyzer> create_analyzer( | ||
| const InvertedIndexCtx* inverted_index_ctx); | ||
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| static void get_analyse_result(std::vector<std::string>& analyse_result, | ||
| lucene::util::Reader* reader, | ||
| lucene::analysis::Analyzer* analyzer, | ||
| const std::string& field_name, InvertedIndexQueryType query_type, | ||
| bool drop_duplicates = true); | ||
| }; | ||
| } // namespace doris::segment_v2::inverted_index |
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