| 1 | /**********************************************************************
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| 2 | *
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| 3 | * phrasequeryfilter.cpp --
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| 4 | * Copyright (C) 1999 DigiLib Systems Limited, New Zealand
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| 5 | *
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| 6 | * A component of the Greenstone digital library software
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| 7 | * from the New Zealand Digital Library Project at the
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| 8 | * University of Waikato, New Zealand.
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| 9 | *
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| 10 | * This program is free software; you can redistribute it and/or modify
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| 11 | * it under the terms of the GNU General Public License as published by
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| 12 | * the Free Software Foundation; either version 2 of the License, or
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| 13 | * (at your option) any later version.
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| 14 | *
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| 15 | * This program is distributed in the hope that it will be useful,
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| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 18 | * GNU General Public License for more details.
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| 19 | *
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| 20 | * You should have received a copy of the GNU General Public License
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| 21 | * along with this program; if not, write to the Free Software
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| 22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 23 | *
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| 24 | * $Id: phrasequeryfilter.cpp 534 1999-09-07 04:57:43Z sjboddie $
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| 25 | *
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| 26 | *********************************************************************/
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| 27 |
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| 28 | /*
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| 29 | $Log$
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| 30 | Revision 1.4 1999/09/07 04:57:23 sjboddie
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| 31 | added gpl notice
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| 32 |
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| 33 | Revision 1.3 1999/08/31 22:44:38 rjmcnab
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| 34 | Fixed small bug.
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| 35 |
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| 36 | Revision 1.2 1999/07/07 06:19:45 rjmcnab
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| 37 | Added ability to combine two or more independant queries.
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| 38 |
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| 39 | Revision 1.1 1999/07/01 04:01:47 rjmcnab
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| 40 | Initial revision.
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| 41 |
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| 42 |
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| 43 | */
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| 44 |
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| 45 |
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| 46 | #include "phrasequeryfilter.h"
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| 47 | #include "queryinfo.h"
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| 48 |
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| 49 | #include "phrasesearch.h"
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| 50 |
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| 51 |
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| 52 |
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| 53 | // do aditional query processing
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| 54 | void phrasequeryfilterclass::post_process (const queryparamclass &queryparams,
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| 55 | queryresultsclass &queryresults) {
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| 56 | bool results_shrunk = false;
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| 57 |
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| 58 | // post-process the results if needed
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| 59 | if (queryresults.orgterms.size() > 1 && !queryresults.docs.docset.empty()) {
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| 60 | // get the long version of the index
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| 61 | text_t longindex;
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| 62 | indexmap.to2from (queryparams.index, longindex);
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| 63 |
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| 64 | // process each of the matched documents
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| 65 | docresultmap::iterator docs_here = queryresults.docs.docset.begin();
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| 66 | docresultmap::iterator docs_end = queryresults.docs.docset.end();
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| 67 | while (docs_here != docs_end) {
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| 68 | if ((*docs_here).second.num_query_terms_matched == queryresults.orgterms.size() &&
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| 69 | OID_phrase_search (*mgsearchptr, *gdbmptr, queryparams.index,
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| 70 | queryparams.subcollection, queryparams.language,
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| 71 | longindex, queryparams.collection, queryresults.orgterms,
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| 72 | (*docs_here).second.docnum)) {
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| 73 | (*docs_here).second.num_phrase_match++;
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| 74 | docs_here++;
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| 75 |
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| 76 | } else {
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| 77 | docresultmap::iterator this_doc_here = docs_here;
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| 78 | docs_here++;
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| 79 | if (queryparams.match_mode == 1) {
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| 80 | // need to delete this element, there was no exact match
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| 81 | queryresults.docs.docset.erase(this_doc_here);
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| 82 | results_shrunk = true;
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| 83 | }
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| 84 | }
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| 85 | }
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| 86 | }
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| 87 |
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| 88 | if (results_shrunk) queryresults.docs_matched = queryresults.docs.docset.size();
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| 89 | }
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| 90 |
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| 91 |
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| 92 | void phrasequeryfilterclass::sort_doc_results (const FilterRequest_t &/*request*/,
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| 93 | docresultsclass &docs) {
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| 94 | resultsorderer_t resultsorderer;
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| 95 | resultsorderer.compare_phrase_match = true;
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| 96 | resultsorderer.compare_terms_match = true;
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| 97 | resultsorderer.compare_doc_weight = true;
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| 98 | resultsorderer.docset = &(docs.docset);
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| 99 |
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| 100 | // first get a list of document numbers
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| 101 | docs.docnum_order();
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| 102 |
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| 103 | sort (docs.docorder.begin(), docs.docorder.end(), resultsorderer);
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| 104 | }
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