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b8d950c1a0
To properly search in the xapian database, we need to use the same stop words that the ones used during the indexing.
90 lines
2.5 KiB
C++
90 lines
2.5 KiB
C++
/*
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* Copyright 2011 Emmanuel Engelhart <kelson@kiwix.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#ifndef KIWIX_XAPIAN_SEARCHER_H
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#define KIWIX_XAPIAN_SEARCHER_H
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#include <xapian.h>
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#include "searcher.h"
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#include "reader.h"
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#include <map>
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#include <string>
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using namespace std;
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namespace kiwix {
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class XapianSearcher;
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class XapianResult : public Result {
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public:
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XapianResult(XapianSearcher* searcher, Xapian::MSetIterator& iterator);
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virtual ~XapianResult() {};
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virtual std::string get_url();
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virtual std::string get_title();
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virtual int get_score();
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virtual std::string get_snippet();
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virtual int get_wordCount();
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virtual int get_size();
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private:
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XapianSearcher* searcher;
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Xapian::MSetIterator iterator;
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Xapian::Document document;
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};
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class NoXapianIndexInZim: public exception {
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virtual const char* what() const throw() {
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return "There is no fulltext index in the zim file";
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}
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};
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class XapianSearcher : public Searcher {
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friend class XapianResult;
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public:
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XapianSearcher(const string &xapianDirectoryPath, Reader* reader);
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virtual ~XapianSearcher() {};
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void searchInIndex(string &search, const unsigned int resultStart, const unsigned int resultEnd,
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const bool verbose=false);
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virtual Result* getNextResult();
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void restart_search();
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protected:
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void closeIndex();
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void openIndex(const string &xapianDirectoryPath);
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void setup_queryParser();
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Reader* reader;
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Xapian::Database readableDatabase;
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std::string language;
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std::string stopwords;
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Xapian::QueryParser queryParser;
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Xapian::Stem stemmer;
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Xapian::SimpleStopper stopper;
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Xapian::MSet results;
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Xapian::MSetIterator current_result;
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std::map<std::string, int> valuesmap;
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};
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}
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#endif
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