OutputFileRegistry.hpp

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#pragma once
 
#include <memory>
#include <alib/string>
#include <alib/map>
#include <functional>
 
#include <exception/CommonException.h>
#include <abstraction/OperationAbstraction.hpp>
 
namespace abstraction {
 
class OutputFileRegistry {
    class Entry {
    public:
        virtual std::shared_ptr < abstraction::OperationAbstraction > getAbstraction ( const std::string & typehint ) const = 0;
 
        virtual ~Entry ( ) = default;
    };
 
    class EntryImpl : public Entry {
        std::function < std::shared_ptr < abstraction::OperationAbstraction > ( const std::string & typehint ) > m_callback;
    public:
        explicit EntryImpl ( std::shared_ptr < abstraction::OperationAbstraction > ( * callback ) ( const std::string & typehint ) ) : m_callback ( callback ) {
        }
 
        std::shared_ptr < abstraction::OperationAbstraction > getAbstraction ( const std::string & typehint ) const override;
    };
 
    static ext::map < std::string, std::unique_ptr < Entry > > & getEntries ( );
 
public:
    static void registerOutputFileHandler ( const std::string & fileType, std::shared_ptr < abstraction::OperationAbstraction > ( * callback ) ( const std::string & typehint ) );
 
    static void unregisterOutputFileHandler ( const std::string & fileType );
 
    static std::shared_ptr < abstraction::OperationAbstraction > getAbstraction ( const std::string & fileType, const std::string & typehint );
};
 
} /* namespace abstraction */