DefragPolicySelector.h

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#ifndef __DEFRAGPOLICYSELECTOR_H_113525CAC772E0__
#define __DEFRAGPOLICYSELECTOR_H_113525CAC772E0__


#include "mw/afp/CommonPolicySelector.h"
#include "mw/afp/EmptyType.h"


// Policies
#include "mw/afp/defrag/EventSeqHeaderSupport.h"
#include "mw/afp/defrag/NoEventSeqHeaderSupport.h"

#include "mw/afp/defrag/NoFECHeaderSupport.h"
#include "mw/afp/defrag/FECHeaderSupport.h"

#include "mw/afp/defrag/EventSeqDemux.h"
#include "mw/afp/defrag/SingleEventDemux.h"
#include "mw/afp/defrag/MultiSourceDemux.h"

#include "mw/afp/defrag/InOrderEventDataReconstructor.h"
#include "mw/afp/defrag/OutOfOrderEventDataReconstructor.h"
#include "mw/afp/defrag/FECEventDataReconstructor.h"

#include "mw/afp/defrag/NoDuplicateChecker.h"
#include "mw/afp/defrag/DuplicateChecker.h"

#include "mw/afp/defrag/Statistics.h"


namespace famouso {
    namespace mw {
        namespace afp {

            typedef defrag::Statistics<EmptyType> DefragmentationStatistics;

            IF_CONTAINS_SELECT_TYPE_(SubjectType);
            IF_CONTAINS_SELECT_TYPE_(DefragStatistics);

            // TODO: support multiple publishers per subject

            // config: not only underlying net, but what to support
            template <typename Config>
            struct DefragPolicySelector {
                typedef DefragPolicySelector ThisType;
                typedef CommonPolicySelector<Config> Common;

                typedef typename if_select_type<
                            !Config::event_seq,
                            typename if_select_type<
                                        Config::multiple_subjects,
                                        defrag::MultiSourceDemux<ThisType>,   // no eseq and multiple subjects
                                        defrag::SingleEventDemux<ThisType>    // no eseq and one subject
                            >::type,
                            defrag::EventSeqDemux<ThisType>                   // eseq and maybe multiple subjects
                        >::type DemuxPolicy;

                typedef typename if_select_type<
                            Config::duplicates,
                            defrag::DuplicateChecker<ThisType>,               // dupliactes
                            defrag::NoDuplicateChecker<ThisType>              // no duplicates
                        >::type DuplicateCheckingPolicy;

                typedef typename if_select_type<
                            Config::FEC,
                            defrag::FECEventDataReconstructor<ThisType>,                    // FEC support
                            typename if_select_type<
                                        Config::reordering,
                                        defrag::OutOfOrderEventDataReconstructor<ThisType>, // reordering
                                        defrag::InOrderEventDataReconstructor<ThisType>     // no reordering
                            >::type
                        >::type EventDataReconstructionPolicy;

                typedef typename if_contains_select_type_SubjectType<
                            Config,
                            EmptyType
                        >::type SubjectType;

                typedef typename if_select_type<
                            !Config::event_seq,
                            typename if_select_type<
                                        Config::multiple_subjects,
                                        defrag::SubjectDemuxKey<ThisType, SubjectType>, // ideal net and multiple subjects
                                        defrag::EmptyDemuxKey<ThisType, SubjectType>    // ideal net and one subject
                            >::type,
                            typename if_select_type<
                                        Config::multiple_subjects,
                                        defrag::EseqSubjectDemuxKey<ThisType, SubjectType>, // non ideal net and multiple subjects
                                        defrag::EseqDemuxKey<ThisType, SubjectType>         // non ideal net and one subject
                            >::type
                        >::type EventDemuxKey;


                typedef typename if_select_type<
                            Config::defrag_statistics,
                            typename if_contains_select_type_DefragStatistics<
                                Config,                         // Return Config::DefragStatistics if defined
                                DefragmentationStatistics       // Default statistics otherwise
                            >::type,
                            defrag::NoStatistics                // No statistics
                        >::type DefragStatistics;

                typedef typename Common::OverflowErrorChecking OverflowErrorChecking;

                typedef typename Common::Allocator Allocator;

                typedef typename Common::SizeProp SizeProp;

                enum {
                    concurrent_events = Config::concurrent_events,

                    old_event_ids = Config::old_event_ids,

                    max_fragments = Config::max_fragments
                };
            };

        } // namespace afp
    } // namespace mw
} // namespace famouso


#endif // __DEFRAGPOLICYSELECTOR_H_113525CAC772E0__