private List <TradeRecord> ParseInner(Stream stream, IFileReader reader, IDbRecordValidation validation, CultureInfo culture, ILogger logger)
{
Thread.CurrentThread.CurrentCulture = culture;
List <string> lines = reader.ReadFile(stream);
return(GetRecords(lines, validation, logger));
}
private List <TradeRecord> GetRecords(List <string> lines, IDbRecordValidation validation, ILogger logger)
{
List <TradeRecord> trades = new List <TradeRecord>();
int lineCount = 1;
foreach (string line in lines)
{
string[] fields = line.Split(new char[] { ',' });
if (validation.IsValid(fields, lineCount))
{
if (!int.TryParse(fields[1], out var tradeAmount))
{
string message = string.Format("Trade amount on line {0} not a valid integer: '{1}'", lineCount, fields[1]);
logger.Log(message);
}
if (!decimal.TryParse(fields[2], out var tradePrice))
{
string message = string.Format("Trade price on line {0} not a valid decimal: '{1}'", lineCount, fields[2]);
logger.Log(message);
}
var sourceCurrencyCode = fields[0].Substring(0, 3);
var destinationCurrencyCode = fields[0].Substring(3, 3);
trades.Add(GenerateNewTradeRecord(sourceCurrencyCode, destinationCurrencyCode, tradeAmount, tradePrice));
}
lineCount++;
}
return(trades);
}
public List <TradeRecord> Parse(Stream stream, IFileReader reader, IDbRecordValidation validation, ILogger logger)
{
if (stream == null)
{
throw new ArgumentNullException($"{nameof(stream)} can't be equal to null!");
}
if (reader == null)
{
throw new ArgumentNullException($"{nameof(reader)} can't be equal to null!");
}
return(ParseInner(stream, reader, validation, DEFAULT_CULTURE, logger));
}
