ParameterRequirement.hpp

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//===========================================================================
//
// File: ParameterRequirement.hpp
//
// Created: Tue Jun  2 19:05:02 2009
//
// Author(s): Bård Skaflestad     <bard.skaflestad@sintef.no>
//            Atgeirr F Rasmussen <atgeirr@sintef.no>
//
// $Date$
//
// $Revision$
//
//===========================================================================
 
/*
  Copyright 2009, 2010 SINTEF ICT, Applied Mathematics.
  Copyright 2009, 2010 Statoil ASA.
 
  This file is part of the Open Porous Media project (OPM).
 
  OPM 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 3 of the License, or
  (at your option) any later version.
 
  OPM 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 OPM.  If not, see <http://www.gnu.org/licenses/>.
*/
 
#ifndef OPM_PARAMETERREQUIREMENT_HEADER
#define OPM_PARAMETERREQUIREMENT_HEADER
 
#include <algorithm>
#include <cassert>
#include <sstream>
#include <string>
#include <vector>
 
namespace Opm {
    struct ParameterRequirementNone {
        template<typename T>
        std::string operator()(const T&) const {
        return "";
        }
    };
 
    struct ParameterRequirementProbability {
        std::string operator()(double x) const {
        if ( (x < 0.0) || (x > 1.0) ) {
            std::ostringstream stream;
            stream << "The value '" << x
                           << "' is not in the interval [0, 1].";
            return stream.str();
        } else {
            return "";
        }
        }
    };
 
    struct ParameterRequirementPositive {
        template<typename T>
        std::string operator()(const T& x) const {
        if (x > 0) {
            return "";
        } else {
            std::ostringstream stream;
            stream << "The value '" << x << "' is not positive.";
            return stream.str();
        }
        }
    };
 
    struct ParameterRequirementNegative {
        template<typename T>
        std::string operator()(const T& x) const {
        if (x < 0) {
            return "";
        } else {
            std::ostringstream stream;
            stream << "The value '" << x << "' is not negative.";
            return stream.str();
        }
        }
    };
 
    struct ParameterRequirementNonPositive {
        template<typename T>
        std::string operator()(const T& x) const {
        if (x > 0) {
            std::ostringstream stream;
            stream << "The value '" << x << "' is positive.";
            return stream.str();
        } else {
            return "";
        }
        }
    };
 
    struct ParameterRequirementNonNegative {
        template<typename T>
        std::string operator()(const T& x) const {
        if (x < 0) {
            std::ostringstream stream;
            stream << "The value '" << x << "' is negative.";
            return stream.str();
        } else {
            return "";
        }
        }
    };
 
    struct ParameterRequirementNonZero {
        template<typename T>
        std::string operator()(const T& x) const {
        if (x != 0) {
            return "";
        } else {
            return "The value was zero.";
        }
        }
    };
 
    struct ParameterRequirementNonEmpty {
        std::string operator()(const std::string& x) const {
        if (x != "") {
            return "The string was empty.";
        } else {
            return "";
        }
        }
    };
 
    template<class Requirement1, class Requirement2>
    struct ParameterRequirementAnd {
        ParameterRequirementAnd(const Requirement1& r1, const Requirement2& r2) :
        r1_(r1), r2_(r2) { }
 
        template<typename T>
        std::string operator()(const T& t) const {
        std::string e1 = r1_(t);
        std::string e2 = r2_(t);
        if (e1 == "") {
            return e2;
        } else if (e2 == "") {
            return e1;
        } else {
            return e1 + " AND " + e2;
        }
        }
    private:
        const Requirement1 r1_;
        const Requirement2 r2_;
    };
 
    struct ParameterRequirementMemberOf {
        explicit ParameterRequirementMemberOf(const std::vector<std::string>& elements)
        : elements_(elements) {
        assert(elements_.size() > 0);
        }
 
        std::string operator()(const std::string& x) const {
        if (std::find(elements_.begin(), elements_.end(), x) == elements_.end()) {
            if (elements_.size() == 1) {
            return "The string '" + x + "' is not '" + elements_[0] + "'.";
            }
            std::ostringstream stream;
            stream << "The string '" << x << "' is not among '";
            for (int i = 0; i < int(elements_.size()) - 2; ++i) {
            stream << elements_[i] << "', '";
            }
            stream << elements_[elements_.size() - 2]
               << "' and '"
               << elements_[elements_.size() - 1]
               << "'.";
            return stream.str();
        } else {
            return "";
        }
        }
    private:
        const std::vector<std::string> elements_;
    };
} // namespace Opm
 
#endif // OPM_PARAMETERREQUIREMENT_HEADER