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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2024 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 "IOobject.H"
#include "dictionary.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
bool Foam::IOobject::headerOk()
{
return typeHeaderOk<IOobject>(false);
}
bool Foam::IOobject::readHeader(Istream& is)
{
if (IOobject::debug)
{
InfoInFunction << "Reading header for file " << is.name() << endl;
}
// Check Istream not already bad
if (!is.good())
{
if (rOpt_ == MUST_READ || rOpt_ == MUST_READ_IF_MODIFIED)
{
FatalIOErrorInFunction(is)
<< " stream not open for reading essential object from file "
<< is.name()
<< exit(FatalIOError);
}
if (IOobject::debug)
{
SeriousIOErrorInFunction(is)
<< " stream not open for reading from file "
<< is.name() << endl;
}
return false;
}
token firstToken(is);
if
(
is.good()
&& firstToken.isWord()
&& firstToken.wordToken() == foamFile
)
{
dictionary headerDict(is);
IOstream::versionNumber ver = IOstream::currentVersion;
headerDict.readIfPresent("version", ver);
is.version(ver);
is.format(headerDict.lookup("format"));
headerClassName_ = word(headerDict.lookup("class"));
const word headerObject(headerDict.lookup("object"));
if (IOobject::debug && headerObject != name())
{
IOWarningInFunction(is)
<< " object renamed from "
<< name() << " to " << headerObject
<< " for file " << is.name() << endl;
}
// The note entry is optional
headerDict.readIfPresent("note", note_);
}
else
{
if (IOobject::debug)
{
IOWarningInFunction(is)
<< "First token could not be read "
"or is not the keyword 'FoamFile'"
<< nl << nl << "Check header is of the form:" << nl << endl;
writeHeader(Info);
}
return false;
}
// Check stream is still OK
if (is.good())
{
objState_ = GOOD;
}
else
{
if (rOpt_ == MUST_READ || rOpt_ == MUST_READ_IF_MODIFIED)
{
FatalIOErrorInFunction(is)
<< " stream failure while reading header"
<< " on line " << is.lineNumber()
<< " of file " << is.name()
<< " for essential object" << name()
<< exit(FatalIOError);
}
if (IOobject::debug)
{
InfoInFunction
<< "Stream failure while reading header"
<< " on line " << is.lineNumber()
<< " of file " << is.name() << endl;
}
objState_ = BAD;
return false;
}
if (IOobject::debug)
{
Info<< " .... read" << endl;
}
return true;
}
// ************************************************************************* //
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