83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
/*=============================================================================
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# Filename: ResultFilter.cpp
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# Author: Jiaqi, Chen
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# Mail: chenjiaqi93@163.com
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# Last Modified: 2016-05-03 15:36
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# Description: implement functions in ResultFilter.h
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=============================================================================*/
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#include "ResultFilter.h"
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using namespace std;
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void ResultFilter::addVar(string var)
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{
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if (this->result_filter.count(var) == 0)
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this->result_filter.insert(make_pair(var, make_pair(0, vector<int>(this->MAX_SIZE, 0))));
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}
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void ResultFilter::changeResultHashTable(SPARQLquery &query, int value)
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{
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long tv_begin = Util::get_cur_time();
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for (int i = 0; i < query.getBasicQueryNum(); i++)
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{
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BasicQuery &basicquery = query.getBasicQuery(i);
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vector<unsigned*> &basicquery_result =basicquery.getResultList();
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int result_num = basicquery_result.size();
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int var_num = basicquery.getVarNum();
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for (int j = 0; j < var_num; j++)
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this->addVar(basicquery.getVarName(j));
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vector<vector<int>* > refer;
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for (int j = 0; j < var_num; j++)
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{
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this->result_filter[basicquery.getVarName(j)].first += value;
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refer.push_back(&this->result_filter[basicquery.getVarName(j)].second);
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}
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for (int j = 0; j < result_num; j++)
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for (int k = 0; k < var_num; k++)
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{
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(*refer[k])[this->hash(basicquery_result[j][k])] += value;
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}
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}
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long tv_end = Util::get_cur_time();
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printf("after ResultFilter::change, used %d ms.\n", tv_end - tv_begin);
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}
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void ResultFilter::candFilterWithResultHashTable(BasicQuery &basicquery)
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{
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for (int j = 0; j < basicquery.getVarNum(); j++)
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{
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map<string, pair<int, vector<int> > >::iterator iter = this->result_filter.find(basicquery.getVarName(j));
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if (iter != this->result_filter.end() && iter->second.first != 0)
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{
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vector<int> &col = iter->second.second;
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IDList &idlist = basicquery.getCandidateList(j);
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IDList new_idlist;
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printf("candFilter on %s\n", basicquery.getVarName(j).c_str());
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printf("before candFilter, size = %d\n", idlist.size());
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long tv_begin = Util::get_cur_time();
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for (int k = 0; k < idlist.size(); k++)
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{
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int id = idlist.getID(k);
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if (col[hash(id)] > 0)
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{
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new_idlist.addID(id);
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}
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}
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idlist = new_idlist;
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long tv_end = Util::get_cur_time();
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printf("after candFilter, size = %d, used %d ms.\n", idlist.size(), tv_end - tv_begin);
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}
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}
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}
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