Host.hpp

//
// Pluma - Plug-in Management Framework
// Copyright (C) 2010-2012 Gil Costa (gsaurus@gmail.com)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
//    you must not claim that you wrote the original software.
//    If you use this software in a product, an acknowledgment
//    in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
//    and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//

#ifndef PLUMA_HOST_HPP
#define PLUMA_HOST_HPP

// Headers
#include <Pluma/Config.hpp>
#include <Pluma/Provider.hpp>

#include <vector>
#include <list>
#include <map>

namespace pluma{

class PLUMA_API Host{
friend class PluginManager;
friend class Provider;


public:

    bool add(Provider* provider);


private:

    Host();

    ~Host();

    bool knows(const std::string& type) const;

    unsigned int getVersion(const std::string& type) const;

    unsigned int getLowestVersion(const std::string& type) const;

    void registerType(const std::string& type, unsigned int version, unsigned int lowestVersion);

    const std::list<Provider*>* getProviders(const std::string& type) const;

    void clearProviders();

    bool validateProvider(Provider* provider) const;

    bool registerProvider(Provider* provider);

    void cancelAddictions();

    bool confirmAddictions();



// Member data

private:

    struct ProviderInfo{
        unsigned int version;
        unsigned int lowestVersion;
        std::list<Provider*> providers;
    };

    typedef std::map<std::string, ProviderInfo > ProvidersMap;
    typedef std::map<std::string, std::list<Provider*> > TempProvidersMap;

    ProvidersMap knownTypes;        
    TempProvidersMap addRequests;   

};

}   // namespace pluma

#endif // PLUMA_HOST_HPP