// create the iterator
private static CsvIterator create(StreamReader breader, bool headerRow, char separator)
{
try
{
if (!headerRow)
{
return(new CsvIterator(breader, separator, ImmutableList.of(), ImmutableMap.of(), 0));
}
string line = breader.ReadLine();
int lineNumber = 1;
while (!string.ReferenceEquals(line, null))
{
ImmutableList <string> headers = CsvFile.parseLine(line, lineNumber, separator);
if (!headers.Empty)
{
return(new CsvIterator(breader, separator, headers, CsvFile.buildSearchHeaders(headers), lineNumber));
}
line = breader.ReadLine();
lineNumber++;
}
throw new System.ArgumentException("Could not read header row from empty CSV file");
}
catch (Exception ex)
{
try
{
breader.Close();
}
catch (IOException ex2)
{
ex.addSuppressed(ex2);
}
throw ex;
}
catch (IOException ex)
{
try
{
breader.Close();
}
catch (IOException ex2)
{
ex.addSuppressed(ex2);
}
throw new UncheckedIOException(ex);
}
}
//-------------------------------------------------------------------------
/// <summary>
/// Checks whether there is another row in the CSV file.
/// </summary>
/// <returns> true if there is another row, false if not </returns>
/// <exception cref="UncheckedIOException"> if an IO exception occurs </exception>
/// <exception cref="IllegalArgumentException"> if the file cannot be parsed </exception>
public override bool hasNext()
{
if (nextRow != null)
{
return(true);
}
else
{
string line = null;
while (!string.ReferenceEquals((line = Unchecked.wrap(() => reader.ReadLine())), null))
{
currentLineNumber++;
ImmutableList <string> fields = CsvFile.parseLine(line, currentLineNumber, separator);
if (!fields.Empty)
{
nextRow = new CsvRow(headers_Renamed, searchHeaders, currentLineNumber, fields);
return(true);
}
}
return(false);
}
}
