AttributeSet_RT.h

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/*******************************************************************************
 *
 * Copyright (c) 2008-2010 Michael Schulze <mschulze@ivs.cs.uni-magdeburg.de>
 *                    2010 Marcus Foerster <MarcusFoerster1@gmx.de>
 * All rights reserved.
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#ifndef _AttributeSet_RT_h_
#define _AttributeSet_RT_h_

#include <stdint.h>

#include "mw/attributes/access/AttributeSetHeader_RT.h"

namespace famouso {
    namespace mw {
        namespace attributes {
            namespace access {

                class AttributeSet_RT : public AttributeSetHeader_RT {
                    protected:
                        AttributeSet_RT() {
                            // Visibility
                        }

                    public:
                        template <typename Attr>
                        Attr* find_rt() {
                            uint8_t* const data = reinterpret_cast<uint8_t* const>(this);

                            return (famouso::mw::attributes::detail::find<Attr>(&data[0]));
                        }

                        template <typename Attr>
                        const Attr* find_rt() const {
                            const uint8_t* const data = reinterpret_cast<const uint8_t* const>(this);

                            return (famouso::mw::attributes::detail::find<Attr>(&data[0]));
                        }

                        uint16_t length() const {
                            return (contentLength() + headerLength());
                        }

                        uint16_t size() const {
                            const uint8_t* ptr = reinterpret_cast<const uint8_t*>(this);

                            uint16_t result = 0;

                            // TODO: This is a copy-paste-version of the find method, consider implementing
                            //  an iterator class

                            ptr += headerLength();

                            // The pointer were the given sequence ends
                            const uint8_t* const targetPtr = ptr + contentLength();

                            typedef famouso::mw::attributes::access::Attribute_RT attrType;

                            while (ptr < targetPtr) {
                                ++result;

                                // We let the attribute class determine its overall size to skip it
                                ptr += reinterpret_cast<const attrType* const>(&ptr[0])->length();
                            }

                            // We iterated the complete set and so return the counted attributes
                            return (result);
                        }

                        void content(uint8_t* buffer) const {
                            const uint8_t* const data = reinterpret_cast<const uint8_t* const>(this);

                            memcpy(buffer, &data[headerLength()], contentLength());
                        }

                        // TODO: Implement methods for manipulation of the attribute set at runtime
                };

            } // end namespace access
        } // end namespace attributes
    } // end namespace mw
} // end namespace famouso

#endif // _Attribute_h_