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Distribution.hpp

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/*******************************************************************************
 * This file is part of openWNS (open Wireless Network Simulator)
 * _____________________________________________________________________________
 *
 * Copyright (C) 2004-2007
 * Chair of Communication Networks (ComNets)
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 * fax: ++49-241-80-22242
 * email: info@openwns.org
 * www: http://www.openwns.org
 * _____________________________________________________________________________
 *
 * openWNS is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License version 2 as published by the
 * Free Software Foundation;
 *
 * openWNS 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 Lesser General Public License for more
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#ifndef WNS_DISTRIBUTION_DISTRIBUTION_HPP
#define WNS_DISTRIBUTION_DISTRIBUTION_HPP

#include <WNS/PyConfigViewCreator.hpp>
#include <WNS/distribution/RNGConfigCreator.hpp>
#include <WNS/pyconfig/View.hpp>
#include <WNS/StaticFactory.hpp>
#include <WNS/simulator/Simulator.hpp>
#include <WNS/rng/RNGen.hpp>
#include <WNS/logger/Logger.hpp>


#include <sstream>

namespace wns { namespace distribution {

    class Distribution
    {
    public:
        Distribution() :
            rng_(wns::simulator::getRNG())
        {};

        Distribution(wns::rng::RNGen* rng) :
            rng_(rng)
        {};

        virtual
        ~Distribution()
        {};

        virtual double
        operator()() = 0;

        friend std::ostream&
        operator <<(std::ostream& os, const Distribution& d)
        {
            os << d.paramString();
            return os;
        };

    protected:

        wns::rng::RNGen*
        getRNG()
        {
            return rng_;
        };

    private:
        virtual std::string
        paramString() const = 0;

        wns::rng::RNGen* rng_;

    }; // Distribution

    typedef PyConfigViewCreator<Distribution> DistributionCreator;
    typedef StaticFactory<DistributionCreator> DistributionFactory;

    typedef RNGConfigCreator<Distribution> RNGDistributionCreator;
    typedef StaticFactory<RNGDistributionCreator> RNGDistributionFactory;

    class IHasMean
    {
    public:

        virtual double
        getMean() const = 0;
    };
} // distribution
} // wns

#endif // NOT defined WNS_DISTRIBUTION_DISTRIBUTION_HPP

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