58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
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/*
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1.1.1 Class Implementation
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----
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This file is part of SECONDO.
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Copyright (C) 2017,
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Faculty of Mathematics and Computer Science,
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Database Systems for New Applications.
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SECONDO 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 2 of the License, or
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(at your option) any later version.
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SECONDO 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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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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*/
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#include "NestedList.h"
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#include "ListUtils.h"
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#include "Algebras/Relation-C++/RelationAlgebra.h"
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#include "OperatorRELARG.hpp"
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#include <loguru.hpp>
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using namespace std;
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extern boost::recursive_mutex nlparsemtx;
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namespace DBService {
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ListExpr OperatorRELARG::mapType(ListExpr args)
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{
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LOG_F(INFO, "%s", "Acquiring lock for nlparsemtx...");
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boost::lock_guard<boost::recursive_mutex> guard(nlparsemtx);
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LOG_F(INFO, "%s", "Successfully acquired lock for nlparsemtx...");
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if(!nl->HasMinLength(args,1)){
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return listutils::typeError("too less arguments");
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}
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if(!Relation::checkType(nl->First(args))){
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return listutils::typeError("first argument is not a relation");
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}
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return nl->First(args);
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}
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} /* namespace DBService */
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