67 lines
2.4 KiB
C++
67 lines
2.4 KiB
C++
#include "concordia/hash_generator.hpp"
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#include "concordia/common/utils.hpp"
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#include <boost/filesystem.hpp>
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#include <boost/archive/binary_oarchive.hpp>
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#include <boost/archive/binary_iarchive.hpp>
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#include <boost/algorithm/string.hpp>
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#include <fstream>
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HashGenerator::HashGenerator(boost::shared_ptr<ConcordiaConfig> config)
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throw(ConcordiaException) :
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_wordMapFilePath(config->getWordMapFilePath()),
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_wordMap(boost::shared_ptr<WordMap>(new WordMap)),
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_sentenceAnonymizer(boost::shared_ptr<SentenceAnonymizer>(
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new SentenceAnonymizer(config))) {
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if (boost::filesystem::exists(_wordMapFilePath)) {
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std::ifstream ifs(_wordMapFilePath.c_str(), std::ios::binary);
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boost::archive::binary_iarchive ia(ifs);
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boost::shared_ptr<WordMap> restoredWordMap(new WordMap);
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ia >> *_wordMap;
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}
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}
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HashGenerator::~HashGenerator() {
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}
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std::vector<INDEX_CHARACTER_TYPE> HashGenerator::generateHash(
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const std::string & sentence) throw(ConcordiaException) {
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std::vector<INDEX_CHARACTER_TYPE> result;
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std::vector<std::string> tokenTexts = generateTokenVector(sentence);
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if (tokenTexts.size() > Utils::maxSentenceSize) {
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throw ConcordiaException("Trying to add too long sentence.");
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}
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for (std::vector<std::string>::iterator it = tokenTexts.begin();
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it != tokenTexts.end(); ++it) {
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std::string token = *it;
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INDEX_CHARACTER_TYPE code = _wordMap->getWordCode(token);
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result.push_back(code);
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}
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return result;
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}
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std::vector<std::string> HashGenerator::generateTokenVector(
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const std::string & sentence) {
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std::string anonymizedSentence = _sentenceAnonymizer->anonymize(sentence);
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boost::trim(anonymizedSentence);
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std::vector<std::string> tokenTexts;
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boost::split(tokenTexts, anonymizedSentence, boost::is_any_of(" \t\r\n"),
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boost::algorithm::token_compress_on);
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return tokenTexts;
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}
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void HashGenerator::serializeWordMap() {
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std::ofstream ofs(_wordMapFilePath.c_str(), std::ios::binary);
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boost::archive::binary_oarchive oa(ofs);
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oa << *_wordMap;
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}
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void HashGenerator::clearWordMap() {
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_wordMap = boost::shared_ptr<WordMap>(new WordMap);
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boost::filesystem::remove(_wordMapFilePath);
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}
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