CSV.H

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/*---------------------------------------------------------------------------*\
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-------------------------------------------------------------------------------
    Copyright (C) 2011-2017 OpenFOAM Foundation
    Copyright (C) 2017-2021 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM 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.
 
    OpenFOAM 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 OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::Function1Types::CSV
 
Description
    Templated CSV function.
 
    Reference column is always a scalar, e.g. time.
 
    Usage:
    \verbatim
        <entryName> csvFile;
        <entryName>Coeffs
        {
            nHeaderLine         4;          // number of header lines
            refColumn           0;          // reference column index
            componentColumns    (1 2 3);    // component column indices
            separator           ",";        // optional (defaults to ",")
            mergeSeparators     no;         // merge multiple separators
            file                "fileXYZ";  // name of csv data file
            outOfBounds         clamp;      // optional out-of-bounds handling
            interpolationScheme linear;     // optional interpolation scheme
        }
    \endverbatim
 
SourceFiles
    CSV.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Function1Types_CSV_H
#define Function1Types_CSV_H
 
#include "Function1.H"
#include "TableBase.H"
#include "Tuple2.H"
#include "labelList.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace Function1Types
{
 
/*---------------------------------------------------------------------------*\
                           Class CSV Declaration
\*---------------------------------------------------------------------------*/
 
template<class Type>
class CSV
:
    public TableBase<Type>
{
    // Private Data
 
        //- Number header lines
        const label nHeaderLine_;
 
        //- Column of the time
        const label refColumn_;
 
        //- Labels of the components
        const labelList componentColumns_;
 
        //- Separator character
        const char separator_;
 
        //- Merge separators flag, e.g. ',,,' becomes ','
        const bool mergeSeparators_;
 
        //- File name for csv table
        fileName fName_;
 
 
    // Private Member Functions
 
        //- Get component columns entry
        static labelList getComponentColumns
        (
            const word& name,
            const dictionary& dict
        );
 
        //- Read csv data table
        void read();
 
        //- Read component values from the split string
        Type readValue(const List<string>& strings) const;
 
        //- No copy assignment
        void operator=(const CSV<Type>&) = delete;
 
 
public:
 
    //- Declare type-name, virtual type (with debug switch)
    TypeName("csvFile");
 
 
    // Constructors
 
        //- Construct from entry name, dictionary and optional registry
        CSV
        (
            const word& entryName,
            const dictionary& dict,
            const objectRegistry* obrPtr = nullptr,
            const fileName& fName = fileName::null
        );
 
        //- Copy construct
        explicit CSV(const CSV<Type>& csv);
 
        //- Construct and return a clone
        virtual tmp<Function1<Type>> clone() const
        {
            return tmp<Function1<Type>>(new CSV<Type>(*this));
        }
 
 
    //- Destructor
    virtual ~CSV() = default;
 
 
    // Member Functions
 
        //- Return const access to the file name
        virtual const fileName& fName() const;
 
        //- Write in dictionary format
        virtual void writeData(Ostream& os) const;
 
        //- Write coefficient entries in dictionary format
        virtual void writeEntries(Ostream& os) const;
};
 
 
// Template specialisations
template<>
label CSV<label>::readValue(const List<string>& strings) const;
 
template<>
scalar CSV<scalar>::readValue(const List<string>& strings) const;
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Function1Types
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "CSV.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //