private static IValueSource valueSourceFor(IEnumerable <string> values, CsvData headers, IColumnMapping mapping)
{
var data = new CsvData(values);
return(headers == null
? mapping.ValueSource(data)
: mapping.ValueSource(data, headers));
}
private void processData <T>(TextReader reader, CsvData headers, CsvRequest <T> request)
{
var mapping = request.Mapping.As <IColumnMapping>();
readUntilComplete(reader, tokens =>
{
var source = valueSourceFor(tokens, headers, mapping);
var result = _resolver.BindModel(typeof(T), source);
request.Callback(result.Value.As <T>());
return(true);
});
}
private CsvData determineHeaders <T>(TextReader reader, CsvRequest <T> request)
{
CsvData headers = null;
if (request.HeadersExist)
{
readUntilComplete(reader, tokens =>
{
if (tokens.Any() && request.UseHeaderOrdering)
{
headers = new CsvData(tokens);
}
return(false);
});
}
return(headers);
}
IValueSource IColumnMapping.ValueSource(CsvData data, CsvData headers)
{
var mapping = this.As <IColumnMapping>();
var badColumns = new List <string>();
var columns = headers
.Values
.Select(x => {
var column = mapping.ColumnFor(x);
if (column == null)
{
badColumns.Add(x);
}
return(column);
}).ToArray();
if (badColumns.Any())
{
throw new CsvColumnException(badColumns);
}
return(data.ToValueSource(columns));
}
IValueSource IColumnMapping.ValueSource(CsvData data)
{
return(data.ToValueSource(_columns));
}
