paramregistry.h

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/***************************************************************************
 *   Copyright (C) 2007 by Ilya A. Volynets-Evenbakh                       *
 *   ilya@total-knowledge.com                                              *
 *                                                                         *
 *   This program 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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program 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.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#ifndef _SERVERCONFIG_PARAMREGISTRY_H_
#define _SERVERCONFIG_PARAMREGISTRY_H_

#include "context.h"

namespace container {
namespace serverconfig {

template <class T>
    class ParamRegistry
{
public:
    typedef bool (T::*setter_f)(const ConfigNode& val);
    typedef std::map<std::string, setter_f> settermap_t;
    typedef std::map<std::string, Context::UnsetParam> flagmap_t;
public:
    void registerParam(const std::string& type, setter_f setter, int flags)
    {
        m_sregistry[type]=setter;
        m_fregistry[type]=Context::UnsetParam(flags);
    }
    bool setParam(const ConfigNode& val, T* context)
    {
        if(m_sregistry.find(val.getType())==m_sregistry.end())
            return false;
        setter_f set=m_sregistry[val.getType()];
        return (context->*set)(val);
    }
    
    ParamRegistry(void(*registerParams)(ParamRegistry<T>&))
    {
        registerParams(*this);
    }
    void getParamList(Context::unsetparams_t& ret)
    {
        ret.clear();
        ret.insert(m_fregistry.begin(),m_fregistry.end());
    }
private:
    settermap_t m_sregistry;
    flagmap_t m_fregistry;
};

}
}
#endif //_SERVERCONFIG_PARAMREGISTRY_H_