anystorage.h

// Description: An associative container for arbitrary data.
// Documentation: undocumented.txt

#ifndef PASTELSYS_ANYSTORAGE_H
#define PASTELSYS_ANYSTORAGE_H

#include <boost/any.hpp>

#include <string>
#include <unordered_map>

namespace Pastel
{

    class AnyStorage
    {
    private:
        typedef std::unordered_map<std::string, boost::any>
            DataSet;
        using ConstIterator = DataSet::const_iterator;

    public:
        template <typename Type>
        void set(const std::string& name, const Type& data)
        {
            dataSet_.insert(std::make_pair(name, boost::any(data)));
        }

        template <typename Type>
        Type get(const std::string& name, const Type& defaultReturn = Type())
        {
            ConstIterator iter = dataSet_.find(name);
            if (iter == dataSet_.end())
            {
                return defaultReturn;
            }
            try
            {
                return boost::any_cast<Type>(iter->second);
            }
            catch(boost::bad_any_cast&)
            {
                // Absorb.
            }

            return defaultReturn;
        }

    private:
        std::unordered_map<std::string, boost::any> dataSet_;
    };

}

#endif