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/*
Author: Shane Neph & Scott Kuehn
Date: Thu Aug 23 17:42:22 PDT 2007
*/
//
// BEDOPS
// Copyright (C) 2011-2022 Shane Neph, Scott Kuehn and Alex Reynolds
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
#ifndef CLASS_WINDOW_AVERAGE_VISITOR_H
#define CLASS_WINDOW_AVERAGE_VISITOR_H
#include "data/measurement/NaN.hpp"
#include "data/measurement/SelectMeasureType.hpp"
namespace Visitors {
template <
typename Process,
typename BaseVisitor
>
struct Average : BaseVisitor {
typedef BaseVisitor BaseClass;
typedef Process ProcessType;
typedef typename BaseClass::RefType RefType;
typedef typename BaseClass::MapType MapType;
explicit Average(const ProcessType& pt = ProcessType())
: pt_(pt), sum_(0), counter_(0)
{ /* */ }
inline void Add(MapType* bt) {
sum_ += *bt;
++counter_;
}
inline void Delete(MapType* bt) {
sum_ -= *bt;
--counter_;
}
inline void DoneReference() {
static const Signal::NaN nan = Signal::NaN();
if ( counter_ > 0 )
pt_.operator()(sum_/counter_);
else
pt_.operator()(nan);
}
inline void End() {
sum_ = 0;
counter_ = 0;
}
virtual ~Average()
{ /* */ }
protected:
ProcessType pt_;
typename Signal::SelectMeasure<MapType>::MeasureType sum_;
int counter_;
};
} // namespace Visitors
#endif // CLASS_WINDOW_AVERAGE_VISITOR_H
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