Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * Version: MPL 1.1 / GPLv3+ / LGPLv3+
       4             :  *
       5             :  * The contents of this file are subject to the Mozilla Public License Version
       6             :  * 1.1 (the "License"); you may not use this file except in compliance with
       7             :  * the License or as specified alternatively below. You may obtain a copy of
       8             :  * the License at http://www.mozilla.org/MPL/
       9             :  *
      10             :  * Software distributed under the License is distributed on an "AS IS" basis,
      11             :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12             :  * for the specific language governing rights and limitations under the
      13             :  * License.
      14             :  *
      15             :  * Major Contributor(s):
      16             :  * Copyright (C) 2012 Gert van Valkenhoef <g.h.m.van.valkenhoef@rug.nl>
      17             :  *  (initial developer)
      18             :  *
      19             :  * All Rights Reserved.
      20             :  *
      21             :  * For minor contributions see the git repository.
      22             :  *
      23             :  * Alternatively, the contents of this file may be used under the terms of
      24             :  * either the GNU General Public License Version 3 or later (the "GPLv3+"), or
      25             :  * the GNU Lesser General Public License Version 3 or later (the "LGPLv3+"),
      26             :  * in which case the provisions of the GPLv3+ or the LGPLv3+ are applicable
      27             :  * instead of those above.
      28             :  */
      29             : 
      30             : #include <helpcompiler/HelpSearch.hxx>
      31             : #include <osl/file.hxx>
      32             : #include <osl/thread.hxx>
      33             : 
      34             : #include "LuceneHelper.hxx"
      35             : 
      36           0 : HelpSearch::HelpSearch(rtl::OUString const &lang, rtl::OUString const &indexDir)
      37           0 :     : d_lang(lang)
      38             : {
      39           0 :     rtl::OUString ustrSystemPath;
      40           0 :     osl::File::getSystemPathFromFileURL(indexDir, ustrSystemPath);
      41           0 :     d_indexDir = rtl::OUStringToOString(ustrSystemPath, osl_getThreadTextEncoding());
      42           0 : }
      43             : 
      44           0 : bool HelpSearch::query(rtl::OUString const &queryStr, bool captionOnly,
      45             :         std::vector<rtl::OUString> &rDocuments, std::vector<float> &rScores) {
      46             : 
      47           0 :     lucene::index::IndexReader *reader = lucene::index::IndexReader::open(d_indexDir.getStr());
      48           0 :     lucene::search::IndexSearcher searcher(reader);
      49             : 
      50           0 :     TCHAR captionField[] = L"caption";
      51           0 :     TCHAR contentField[] = L"content";
      52           0 :     TCHAR *field = captionOnly ? captionField : contentField;
      53             : 
      54           0 :     bool isWildcard = queryStr[queryStr.getLength() - 1] == L'*';
      55           0 :     std::vector<TCHAR> aQueryStr(OUStringToTCHARVec(queryStr));
      56             :     lucene::search::Query *pQuery;
      57           0 :     if (isWildcard)
      58           0 :         pQuery = _CLNEW lucene::search::WildcardQuery(_CLNEW lucene::index::Term(field, &aQueryStr[0]));
      59             :     else
      60           0 :         pQuery = _CLNEW lucene::search::TermQuery(_CLNEW lucene::index::Term(field, &aQueryStr[0]));
      61             : 
      62           0 :     lucene::search::Hits *hits = searcher.search(pQuery);
      63           0 :     for (unsigned i = 0; i < hits->length(); ++i) {
      64           0 :         lucene::document::Document &doc = hits->doc(i); // Document* belongs to Hits.
      65           0 :         wchar_t const *path = doc.get(L"path");
      66           0 :         rDocuments.push_back(TCHARArrayToOUString(path != 0 ? path : L""));
      67           0 :         rScores.push_back(hits->score(i));
      68             :     }
      69             : 
      70           0 :     _CLDELETE(hits);
      71           0 :     _CLDELETE(pQuery);
      72             : 
      73           0 :     reader->close();
      74           0 :     _CLDELETE(reader);
      75             : 
      76           0 :     return true;
      77             : }
      78             : 
      79             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */