public IEnumerable <CsvRow> Read(Stream sourceStream, Encoding encoding, bool throwOnUnknownColumns, bool throwOnDuplicateColumns)
{
StreamReader sourceReader;
if (encoding != null)
{
sourceReader = new StreamReader(sourceStream, encoding);
}
else
{
sourceReader = new StreamReader(sourceStream, true);
}
using (sourceReader)
{
using (CsvReader csvReader = new CsvReader(sourceReader, true))
{
if (csvReader.Headers != null)
{
CsvColumnMap columnMap = this.CreateColumnMap(csvReader.Headers, throwOnUnknownColumns, throwOnDuplicateColumns);
yield return(this.CreateCsvRow(0, csvReader.Headers, columnMap));
int index = 0;
foreach (string[] data in csvReader.ReadRows())
{
index++;
CsvRow row = this.CreateCsvRow(index, data, columnMap);
this.ValidateRow(row);
yield return(row);
}
}
}
}
yield break;
}
public virtual CsvColumnMap CreateColumnMap(IList <string> columnNames, bool throwOnUnknownColumns, bool throwOnDuplicateColumns)
{
CsvColumnMap result = new CsvColumnMap(columnNames, throwOnDuplicateColumns);
foreach (string text in this.RequiredColumns.Keys)
{
if (!result.Contains(text))
{
throw new CsvRequiredColumnMissingException(text);
}
}
foreach (string text2 in this.ProhibitedColumns)
{
if (result.Contains(text2))
{
throw new CsvProhibitedColumnPresentException(text2);
}
}
if (throwOnUnknownColumns)
{
HashSet <string> hashSet = new HashSet <string>(columnNames, StringComparer.OrdinalIgnoreCase);
hashSet.ExceptWith(this.RequiredColumns.Keys);
hashSet.ExceptWith(this.OptionalColumns.Keys);
if (hashSet.Count > 0)
{
string columns = '"' + string.Join("\", \"", hashSet.ToArray <string>()) + '"';
throw new CsvUnknownColumnsException(columns, hashSet);
}
}
return(result);
}
public CsvRow(int index, IList <string> data, CsvColumnMap columnMap)
{
if (data.Count != columnMap.Count)
{
throw new CsvWrongNumberOfColumnsException(index, columnMap.Count, data.Count);
}
this.index = index;
this.data = data;
this.columnMap = columnMap;
this.errors = new Dictionary <string, PropertyValidationError>();
}
public CsvColumnMap(IList <string> columnNames)
{
this = new CsvColumnMap(columnNames, true);
}
protected virtual CsvRow CreateCsvRow(int index, IList <string> data, CsvColumnMap columnMap)
{
return(new CsvRow(index, data, columnMap));
}
