TuttleOFX/libraries/tuttle/src/tuttle/host/NodeHashContainer.hpp

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#ifndef _TUTTLE_HOST_NODEHASHCONTAINER_HPP_
#define _TUTTLE_HOST_NODEHASHCONTAINER_HPP_

#include "NodeAtTimeKey.hpp"
#include "exceptions.hpp"

#include <ofxCore.h>

#include <map>
#include <string>
#include <cstddef>
#include <ostream>

namespace tuttle {
namespace host {

class NodeHashContainer
{
public:
        NodeHashContainer()
        {}
        
        std::size_t getFirst() const
        {
                return _hashes.begin()->second;
        }
        std::size_t getHash( const NodeAtTimeKey& k ) const
        {
                Map::const_iterator it = _hashes.find(k);
                if( it == _hashes.end() )
                {
                        BOOST_THROW_EXCEPTION( exception::BadIndex() );
                }
                return it->second;
        }
        std::size_t getHash( const std::string& name, const OfxTime& time ) const
        {
                return getHash( NodeAtTimeKey(name, time) );
        }
        
        void addHash( const std::string& name, const OfxTime& time, const std::size_t hash )
        {
                NodeAtTimeKey k(name, time);
                addHash( k, hash );
        }
        void addHash( const NodeAtTimeKey& k, const std::size_t hash )
        {
                _hashes[k] = hash;
        }

public:
        friend std::ostream& operator<<( std::ostream& os, const NodeHashContainer& c );

private:
        typedef std::map<NodeAtTimeKey, std::size_t> Map;
        Map _hashes;
};

}
}

#endif