private static string GetMessage(Type targetType, IDataSheetCell cell)
{
return
($"Conversion from '{nameof(String)}' to '{targetType.Name}' is not supported for value " +
$"'{cell.GetString()}' within cell {cell.ColumnLetter}{cell.RowNumber}. " +
"Try configuring additional converters to support the requested operation!");
}
public object ConvertTo(IDataSheetCell cell, Type convertTo)
{
if (cell == null)
{
throw new ArgumentNullException(nameof(cell));
}
if (convertTo == null)
{
throw new ArgumentNullException(nameof(convertTo));
}
var converters = _converterProvider.GetConverters();
if (converters.Empty())
{
throw new NoConvertersConfiguredException();
}
if (converters.ContainsKey(convertTo) == false)
{
throw new CellValueConversionNotSupportedException(convertTo, cell);
}
var converter = converters[convertTo];
try
{
return(converter(cell));
}
catch (Exception exception)
{
throw ValueException.ForInvalidValue(convertTo, cell, exception);
}
}
private bool TryMatchCellValue(IDataSheetCell c)
{
var cellValue = c.GetValue <string>();
var searchCriteria = _convention.ApplyConvention(cellValue);
var result =
string.Compare(searchCriteria, _valueToFind, _options) == 0;
return(result);
}
public TTargetValue ConvertTo <TTargetValue>(IDataSheetCell cell)
{
var value = ConvertTo(cell, typeof(TTargetValue));
if (value.AnyValue())
{
return((TTargetValue)value);
}
return(default(TTargetValue));
}
public void ShouldNotTrimValueWhenConvertingToString(IDataSheetCell cell, HardcodedConverterProvider sut)
{
// Arrange
cell.GetStringOrDefault().Returns(" Value ");
var converters = sut.GetConverters();
var converter = converters[typeof(string)];
// Act
var result = converter(cell);
// Assert
Assert.Equal(" Value ", result);
}
public IDataSheetPicture MoveTo(IDataSheetCell cell)
{
if (cell == null)
{
throw new ArgumentNullException(nameof(cell));
}
var internalCell = ((DataSheetCell)cell).Internal;
_picture.MoveTo(internalCell);
return(this);
}
public static ValueException ForInvalidValue(Type targetType, IDataSheetCell cell)
{
if (targetType == null)
{
throw new ArgumentNullException(nameof(targetType));
}
if (cell == null)
{
throw new ArgumentNullException(nameof(cell));
}
var message = GetMessage(targetType, cell);
return(new ValueException(message));
}
public CellValueConversionNotSupportedException(Type targetType, IDataSheetCell cell)
: base(GetMessage(targetType, cell))
{
}
private static string GetMessage(Type targetType, IDataSheetCell cell)
{
return
($"Conversion from '{typeof(string).Name}' to '{targetType.Name}' for value '{cell.GetString()}' has failed!" +
$" Value in the cell '{cell.ColumnLetter + cell.RowNumber}' is not valid for the destination type! Please check converter logic or amend the value within the cell.");
}
public static ValueException ForInvalidValue <TDestinationValueType>(IDataSheetCell cell, Exception exception)
{
return(ForInvalidValue(typeof(TDestinationValueType), cell, exception));
}
public static ValueException ForMissingValue <TDestinationValueType>(string worksheetName, IDataSheetCell cell)
{
var message = $"Value of type '{typeof(TDestinationValueType).Name}' expected in worksheet {worksheetName} cell {cell.ColumnLetter}{cell.RowNumber}";
return(new ValueException(message));
}
