procedurelibrary.cpp

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/*****************************************************************************
    NumeRe: Framework fuer Numerische Rechnungen
    Copyright (C) 2017  Erik Haenel et al.
 
    This program 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.
 
    This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/
 
#include "procedurelibrary.hpp"
#include "../ui/error.hpp"
#include "../utils/tools.hpp"
 
 
ProcedureLibrary::~ProcedureLibrary()
{
    for (auto iter = mLibraryEntries.begin(); iter != mLibraryEntries.end(); ++iter)
        delete (iter->second);
}
 
 
ProcedureElement* ProcedureLibrary::constructProcedureElement(const std::string& sProcedureFileName)
{
    if (fileExists(sProcedureFileName))
    {
        return new ProcedureElement(getFileContents(sProcedureFileName), sProcedureFileName);
    }
 
    return nullptr;
}
 
 
StyledTextFile ProcedureLibrary::getFileContents(const std::string& sProcedureFileName)
{
    StyledTextFile procFile(sProcedureFileName);
 
    if (!procFile.getLinesCount())
        throw SyntaxError(SyntaxError::FILE_NOT_EXIST, sProcedureFileName, SyntaxError::invalid_position, sProcedureFileName);
 
    return procFile;
}
 
 
ProcedureElement* ProcedureLibrary::getProcedureContents(const std::string& sProcedureFileName)
{
    if (mLibraryEntries.find(sProcedureFileName) == mLibraryEntries.end())
    {
        ProcedureElement* element = constructProcedureElement(sProcedureFileName);
 
        if (element)
            mLibraryEntries[sProcedureFileName] = element;
        else
            throw SyntaxError(SyntaxError::FILE_NOT_EXIST, sProcedureFileName, SyntaxError::invalid_position, sProcedureFileName);
    }
 
    return mLibraryEntries[sProcedureFileName];
}
 
 
void ProcedureLibrary::updateLibrary()
{
    for (auto iter = mLibraryEntries.begin(); iter != mLibraryEntries.end(); )
    {
        delete (iter->second);
 
        try
        {
            ProcedureElement* element = constructProcedureElement(iter->first);
 
            if (element)
            {
                iter->second = element;
                iter++;
            }
            else
                iter = mLibraryEntries.erase(iter);
        }
        catch (...)
        {
            iter = mLibraryEntries.erase(iter);
        }
    }
}