Dario Sassi
90 lines
3.4 KiB
C++
90 lines
3.4 KiB
C++
//----------------------------------------------------------------------------
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// EgalTech 2015-2015
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//----------------------------------------------------------------------------
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// File : MachiningDataFactory.h Data : 05.06.15 Versione : 1.6f1
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// Contenuto : Factory della classe MachiningData.
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//
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//
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//
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// Modifiche : 06.05.15 DS Creazione modulo.
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//
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//
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//----------------------------------------------------------------------------
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#pragma once
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#include "MachiningData.h"
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#include <string>
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#include <unordered_map>
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//----------------------------------------------------------------------------
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#define MCHDATA_REGISTER( sName, T) static const bool bReg_##T = \
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MachiningDataRegister<T>::DoRegister( sName)
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#define MCHDATA_GETNAME( T) MachiningDataRegister<T>::GetName()
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#define MCHDATA_CREATE( sName) MachiningDataFactory::Create( sName)
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#define MCHDATA_GETLIST( vsList) MachiningDataFactory::GetList( vsList)
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//----------------------------------------------------------------------------
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template <typename T>
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class MachiningDataRegister
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{
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public :
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static bool DoRegister( const std::string& sName)
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{ if ( ! MachiningDataFactory::Register( sName, Create))
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return false ;
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GetNamePrivate() = sName ;
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return true ; }
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static MachiningData* Create( void)
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{ return new(nothrow) T ; }
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static const std::string& GetName( void)
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{ return GetNamePrivate() ; }
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private :
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MachiningDataRegister( void) {}
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~MachiningDataRegister( void) {}
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static std::string& GetNamePrivate( void)
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{ static std::string s_sName ;
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return s_sName ; }
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} ;
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//----------------------------------------------------------------------------
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class MachiningDataFactory
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{
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public :
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// definizione del tipo funzione di creazione
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typedef MachiningData* ( *MachiningDataCreator) ( void) ;
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// per registrare le funzioni di creazione
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static bool Register( const std::string& sName, MachiningDataCreator Creator)
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{ return GetCreatorMap().emplace( sName, Creator).second ; }
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// per creare l'oggetto richiesto
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static MachiningData* Create( const std::string& sName)
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{ auto Iter = GetCreatorMap().find( sName) ;
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if ( Iter != GetCreatorMap().end()) {
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if ( Iter->second != nullptr)
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return Iter->second() ;
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}
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return nullptr ;
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}
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// per restituire la lista degli oggetti registrati
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static bool GetList( STRVECTOR& vsList)
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{// verifico parametro di ritorno
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if ( &vsList == nullptr)
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return false ;
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// ciclo sugli oggetti registrati
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for ( auto Iter = GetCreatorMap().cbegin() ; Iter != GetCreatorMap().cend() ; ++ Iter)
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vsList.emplace_back( Iter->first) ;
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return true ;
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}
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private :
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MachiningDataFactory( void) {}
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~MachiningDataFactory( void) {}
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// definizione del tipo mappa con coppie nome, funzione di creazione
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typedef std::unordered_map<std::string, MachiningDataCreator> CreatorMap ;
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// metodo di accesso alla mappa statica
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static CreatorMap& GetCreatorMap( void)
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{ static CreatorMap s_CreatorMap ;
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return s_CreatorMap ;
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}
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} ;
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