LimeReport/limereport/base/lrsimpleabstractfactory.h
2021-08-18 14:21:36 -03:00

104 lines
4.5 KiB
C++

/***************************************************************************
* This file is part of the Lime Report project *
* Copyright (C) 2021 by Alexander Arin *
* arin_a@bk.ru *
* *
** GNU General Public License Usage **
* *
* This library is free software: you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
* *
** GNU Lesser General Public License **
* *
* This library is free software: you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License as *
* published by the Free Software Foundation, either version 3 of the *
* License, or (at your option) any later version. *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library. *
* If not, see <http://www.gnu.org/licenses/>. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
****************************************************************************/
#ifndef LRSIMPLEABSTRACTFACTORY_H
#define LRSIMPLEABSTRACTFACTORY_H
#include "lrsingleton.h"
#include "lrglobal.h"
#include <stdexcept>
#include <QHash>
#include <QMap>
#include <QString>
namespace LimeReport{
template
<
typename AbstractProduct,
typename IdentifierType,
typename ProductCreator
>
class SimpleAbstractFactory
: public Singleton< SimpleAbstractFactory< AbstractProduct,IdentifierType,ProductCreator > >
{
private:
typedef QHash<IdentifierType,ProductCreator> FactoryMap;
friend class Singleton< SimpleAbstractFactory< AbstractProduct,IdentifierType,ProductCreator > >;
public:
bool registerCreator(const IdentifierType& id, ProductCreator creator){
return (m_factoryMap.insert(id,creator).value()==creator);
}
bool unregisterCreator(const IdentifierType& id){
return (m_factoryMap.remove(id)==1);
}
ProductCreator objectCreator(const IdentifierType& id){
if (m_factoryMap.contains(id)){
return m_factoryMap[id];
} else {
return 0;
}
}
const FactoryMap& map(){return m_factoryMap;}
int mapElementCount(){return m_factoryMap.count();}
private:
FactoryMap m_factoryMap;
};
template
<
typename AbstractProduct,
typename IdentifierType,
typename ProductCreator,
typename Attribs
>
class AttribAbstractFactory : public SimpleAbstractFactory< AbstractProduct,IdentifierType,ProductCreator >{
typedef SimpleAbstractFactory< AbstractProduct,IdentifierType,ProductCreator > SimpleFactory;
typedef QMap<IdentifierType,Attribs> AliasMap;
friend class Singleton<AttribAbstractFactory< AbstractProduct,IdentifierType,ProductCreator,Attribs > >;
public :
bool registerCreator(const IdentifierType &id, Attribs attribs, ProductCreator creator){
return SimpleFactory::registerCreator(id,creator) && (m_attribsMap.insert(id,attribs).value()==attribs);
}
bool unregisterCreator(const IdentifierType &id){
return SimpleFactory::unregisterCreator(id)&&(m_attribsMap.remove(id)==1);
}
QString attribs(const IdentifierType& id){
if (m_attribsMap.contains(id)){
return m_attribsMap.value(id);
} else return "";
}
const AliasMap& attribsMap(){return m_attribsMap;}
private:
AliasMap m_attribsMap;
};
}
#endif //LRSIMPLEABSTRACTFACTORY_H