bool CModelData::ReadRowSeedFile()

in cli/mparser.cpp [527:648]
94 lines of code
22 McCabe index (conditional complexity)

bool CModelData::ReadRowSeedFile( const wstring& filePath )
{
    if( trim( filePath ).empty() ) return( true );

    // Some implementations of wifstream only allow ANSI strings as file names so converting before using
    string ansiFilePath = wideCharToAnsi( filePath );
    wifstream file( ansiFilePath );
    if ( !file )
    {
        PrintMessage( InputDataError, L"Couldn't open file:", filePath.data() );
        return( false );
    }
    wstring line;

    // parameter names

    bool fileEmpty = false;
    if ( readLineFromFile( file, line ))
    {
        if ( trim( line ).empty() ) fileEmpty = true;
    }
    else
    {
        fileEmpty = true;
    }

    if ( fileEmpty )
    {
        PrintMessage( RowSeedsWarning, L"Seeding file is empty" ); 
        return( true );
    }

    EncodingType encoding = getEncodingType( line );
    if ( encoding != EncodingType::ANSI
      && encoding != EncodingType::UTF8 )
    {
        PrintMessage( RowSeedsError, L"Only ANSI and UTF-8 are supported" );
        return( false );
    }

    vector< vector<CModelParameter>::iterator > parameters;

    wstrings params;
    split( line, RESULT_DELIMITER, params );
    for( auto & param : params )
    {
        vector<CModelParameter>::iterator found = FindParameterByName( param );
        if ( found == Parameters.end())
        {
            PrintMessage( RowSeedsWarning, L"Parameter", 
                                           param.data(),
                                           L"not found in the model. Skipping..." );
        }
        parameters.push_back( found );
    }

    // if any parameter equals to ModelData.Parameters.end()
    // this parameter could not be found in the model

    while( readLineFromFile( file, line ))
    {
        if ( trim(line).empty() ) break;

        wstrings values;
        split( line, RESULT_DELIMITER, values );

        unsigned int n_param = 0;
        CModelRowSeed rowSeed;
        for ( wstrings::iterator i_value  = values.begin(); 
                                 i_value != values.end(); 
                               ++i_value, ++n_param )
        {
            // There could be fewer parameter names (in the first line)
            // than there is values in the following lines. This has
            // to be detected and a warning issued
            if ( n_param < (unsigned int) parameters.size() && parameters[ n_param ] != Parameters.end() )
            {
                CModelParameter &param = *(parameters[ n_param ]);
                
                // remove the negative marker and match up the raw name
                if ( i_value->length() > 0  && (*i_value)[ 0 ] == InvalidPrefix )
                {
                    *i_value = trim( i_value->substr( 1, i_value->length() - 1 ));
                }

                // if any value could not be found, the whole seed row is not invalid
                // we just remove that one offending value and the rest of the row can
                // stay intact; we cannot really warn about this as in a model with
                // submodels this is very normal
                int found = param.GetValueOrdinal( *i_value, CaseSensitive );
                if ( found == -1 )
                {
                    if ( ! i_value->empty() )
                    {
                        PrintMessage( RowSeedsWarning, L"Value", 
                                                    i_value->data(),
                                                    L"not found in the model. Skipping this value..." );
                    }
                }
                else
                {
                    // we don't care about result parameters as we should not seed we expected results
                    if ( ! param.IsResultParameter )
                    {
                        rowSeed.push_back( make_pair( param.Name, *i_value ));
                    }
                }
            }
        }
        if ( ! rowSeed.empty() )
        {
            RowSeeds.push_back( rowSeed );
        }
    }

    if( ! ValidateRowSeeds())
    {
        return( false );
    }

    return( true );
}