TableFileReader.C

Go to the documentation of this file.

/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     | Website:  https://openfoam.org
    \\  /    A nd           | Copyright (C) 2011-2026 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
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/>.
 
\*---------------------------------------------------------------------------*/
 
#include "TableFileReader.H"
#include "fileOperation.H"
 
// * * * * * * * * * * * * * Protected Member Functions  * * * * * * * * * * //
 
template<class Coordinate, class Value>
Foam::autoPtr<Foam::Function1s::unitSets>
Foam::TableFileReader<Coordinate, Value>::readUnits
(
    const Function1s::unitSets& defaultUnits,
    const dictionary& dict
) const
{
    if (dict.found("units"))
    {
        Function1s::unitSets units(defaultUnits);
        units.read(dict.lookup("units"));
        return
            autoPtr<Function1s::unitSets>
            (
                new Function1s::unitSets(units)
            );
    }
    else
    {
        return autoPtr<Function1s::unitSets>(nullptr);
    }
}
 
 
template<class Coordinate, class Value>
void Foam::TableFileReader<Coordinate, Value>::read
(
    const Function1s::unitSets& defaultUnits,
    const dictionary& dict,
    List<Tuple2<Coordinate, Value>>& table
) const
{
    // Expand the file
    fileName fNameExpanded(fName_);
    fNameExpanded.expand();
 
    // Open a stream and check it
    autoPtr<ISstream> isPtr(fileHandler().NewIFstream(fNameExpanded));
    ISstream& is = isPtr();
    if (!is.good())
    {
        FatalIOErrorInFunction(is)
            << "Cannot open file " << fName_ << nl
            << exit(FatalIOError);
    }
 
    // Read data from the stream
    read(is, table);
 
    // Check something was read
    if (table.empty())
    {
        FatalIOErrorInFunction(is)
            << "Table read from " << fName_ << " is empty" << nl
            << exit(FatalIOError);
    }
 
    // Convert units
    TableReader<Coordinate, Value>::convertRead
    (
        unitsPtr_.valid() ? unitsPtr_() : defaultUnits,
        table
    );
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
template<class Coordinate, class Value>
Foam::TableFileReader<Coordinate, Value>::TableFileReader
(
    const Function1s::unitSets& defaultUnits,
    const dictionary& dict
)
:
    TableReader<Coordinate, Value>(),
    fName_(dict.lookup("file")),
    unitsPtr_(readUnits(defaultUnits, dict))
{}
 
 
template<class Coordinate, class Value>
Foam::TableFileReader<Coordinate, Value>::TableFileReader
(
    const TableFileReader<Coordinate, Value>& tfr
)
:
    TableReader<Coordinate, Value>(tfr),
    fName_(tfr.fName_),
    unitsPtr_
    (
        tfr.unitsPtr_.valid()
      ? new Function1s::unitSets(tfr.unitsPtr_())
      : nullptr
    )
{}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
template<class Coordinate, class Value>
Foam::TableFileReader<Coordinate, Value>::~TableFileReader()
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
template<class Coordinate, class Value>
Foam::List<Foam::Tuple2<Coordinate, Value>>
Foam::TableFileReader<Coordinate, Value>::read
(
    const Function1s::unitSets& units,
    const dictionary& dict,
    const word&
) const
{
    List<Tuple2<Coordinate, Value>> data;
    read(units, dict, data);
    return data;
}
 
 
template<class Coordinate, class Value>
void Foam::TableFileReader<Coordinate, Value>::write
(
    Ostream& os,
    const Function1s::unitSets& units,
    const List<Tuple2<Coordinate, Value>>& table,
    const word&
) const
{
    writeEntry(os, "format", this->type());
    writeEntry(os, "file", fName_);
 
    if (unitsPtr_.valid())
    {
        writeEntry(os, "units", unitsPtr_());
    }
}
 
 
// ************************************************************************* //