140 lines
3.3 KiB
C++
140 lines
3.3 KiB
C++
/*
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----
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This file is part of SECONDO.
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Copyright (C) 2018,
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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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*/
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#ifndef DARRAYELEMENT_H
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#define DARRAYELEMENT_H
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#include <string>
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#include <iostream>
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#include "NestedList.h"
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#include "SecondoSMI.h"
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#include "Algebras/Relation-C++/RelationAlgebra.h"
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namespace distributed2{
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/*
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2 Class ~DArrayElement~
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This class represents information about a single worker of a DArray.
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*/
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class DArrayElement{
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public:
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DArrayElement(const std::string& _server, const int _port,
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const int _num, const std::string& _config);
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DArrayElement(const DArrayElement& src);
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DArrayElement& operator=(const DArrayElement& src);
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~DArrayElement();
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inline void setNum(const int num){
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this->num = num;
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}
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void set(const std::string& server, const int port,
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const int num, const std::string& config);
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bool operator==(const DArrayElement& other) const;
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inline bool operator!=(const DArrayElement& other) const{
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return !((*this) == other);
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}
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bool operator<(const DArrayElement& other) const;
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bool operator>(const DArrayElement& other) const;
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ListExpr toListExpr() const;
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bool readFrom(SmiRecord& valueRecord, size_t& offset);
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bool saveTo(SmiRecord& valueRecord, size_t& offset) const;
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void print(std::ostream& out)const;
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inline std::string getHost()const{ return server; }
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inline int getPort() const {return port; }
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inline std::string getConfig() const{ return config; }
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inline int getNum() const{ return num; }
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template<class H, class C>
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static DArrayElement* createFromTuple(Tuple* tuple, int num,
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int hostPos, int portPos, int configPos){
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if(!tuple || (num < 0) ) {
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return 0;
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}
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H* CcHost = (H*) tuple->GetAttribute(hostPos);
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CcInt* CcPort = (CcInt*) tuple->GetAttribute(portPos);
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C* CcConfig = (C*) tuple->GetAttribute(configPos);
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if(!CcHost->IsDefined() || !CcPort->IsDefined() ||
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!CcConfig->IsDefined()){
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return 0;
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}
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std::string host = CcHost->GetValue();
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int port = CcPort->GetValue();
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std::string config = CcConfig->GetValue();
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if(port<=0){
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return 0;
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}
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return new DArrayElement(host,port,num,config);
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}
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private:
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std::string server;
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uint32_t port;
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uint32_t num;
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std::string config;
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};
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std::ostream& operator<<(std::ostream& out, const DArrayElement& elem);
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bool InDArrayElement(ListExpr list, DArrayElement& result);
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}
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#endif
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