core/DataStack.h

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// /////////////////////////////////////////////////////////////////////////////
//
// Name:            DataStack.h
// Author:          Michael Bartsch (ZCCdark203)
//
// Desc :           Declaration of the DataStack class.
//
// License:         Copyright (C) 2009 Michael Bartsch and Contributors
//
//                  This program is free software: you can redistribute it
//                  and/or modify it under the terms of the zlib/libpng License.
//                  See main.cpp for conditions of distribution and use.
//
// /////////////////////////////////////////////////////////////////////////////

#ifndef __DATASTACK_H__
#define __DATASTACK_H__

// Include files
#include "../dependencies.h"
#include "ReferenceCounted.h"
#include "DataStore.h"

// Forward declarations.
class DataStore;


// DataStack class
class DataStack : public ReferenceCounted
{
public:

    // Initialisation and deinitialisation
    DataStack(const std::string &name);
    ~DataStack();

    void init();
    void clear();

    // Methods
    u32 getID() const;
    const std::string& getName() const;

    u32 getSize() const;

    template<typename T>
    bool setVar(const std::string &name, const T &value)
    {
        // Convert the variable.
        std::stringstream ss;
        ss << value;

        // In case the variable has been converted we'll store it.
        if(ss.good())
        {
           mVars[name] = ss.str();
           return true;
        }

        // The variable hasn't been converted correctly.
        else return false;
    };

    template<typename T>
    T getVar(const std::string &name)
    {
        // Try to find the given variable.
        std::map<std::string, std::string>::iterator it;
        it = mVars.find(name);

        // Did we find the variable?
        if(it != mVars.end())
        {
           std::stringstream ss(it->second);
           T t;

           ss >> t;
           return t;
        }

        // We didn't find the variable.
        else return NULL;
    };

    std::string getVar(const std::string &name);

    void removeVars();
    bool removeVar(const std::string &name);

    bool saveBencode(const std::string &fileName);
    bool loadBencode(const std::string &fileName);

    bool saveXML(const std::string &fileName);
    bool loadXML(const std::string &fileName);

private:

    // Static members
    static u32 mIDCount;

    // Normal members
    u32 mID;
    std::string mName;

    std::map<std::string, std::string> mVars;
};

#endif

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