public void TransferInfo(ITradeRecordSource source,
ITradeRecordDestination destination,
ITradeRecordValidator validator,
IRecordFactory recordFactory)
{
var records = source.ReadRecords(validator, recordFactory);
destination.WriteRecords(records);
}
public IEnumerable <TradeRecord> ReadRecords(ITradeRecordValidator validator, IRecordFactory recordFactory)
{
if (validator == null)
{
throw new ArgumentNullException($"{nameof(validator)} can't be null");
}
if (recordFactory == null)
{
throw new ArgumentNullException($"{nameof(recordFactory)} can't be null");
}
var lineNumber = 0;
using (var sr = new StreamReader(_sourcePath))
{
while (true)
{
var recordLine = sr.ReadLine();
if (recordLine != null)
{
TradeRecord record = null;
try
{
record = CreateValidRecord(recordLine.Split(",".ToCharArray()), recordFactory, validator);
}
catch (ArgumentException e)
{
var logMessage = $"{e.Message}. Invalid record. Line:{lineNumber}";
LoggerService.Warning(logMessage);
}
if (record != null)
{
yield return(record);
}
lineNumber++;
}
else
{
yield break;
}
}
}
}
private TradeRecord CreateValidRecord(string[] fields, IRecordFactory recordFactory, ITradeRecordValidator validator)
{
if (fields.Length != StandartFieldLength)
{
throw new ArgumentException("Not valid amount of fields");
}
if (fields[0].Length != StandartCurrencyLength)
{
throw new ArgumentException("Not valid currency codes");
}
var source = fields[0].Substring(0, 3);
var destination = fields[0].Substring(3, 3);
return(recordFactory.CreateNewRecord(destination, source, fields[2], fields[1], validator));
}
public TradeRecord CreateNewRecord(string destinationCurrency, string sourceCurrency, string price, string lots, ITradeRecordValidator validator)
{
validator.CheckInfo(destinationCurrency, sourceCurrency, price, lots);
return(new TradeRecord(
destinationCurrency,
sourceCurrency,
float.Parse(lots, NumberStyles.AllowDecimalPoint | NumberStyles.AllowThousands, CultureInfo.InvariantCulture),
decimal.Parse(price, NumberStyles.AllowDecimalPoint | NumberStyles.AllowThousands, CultureInfo.InvariantCulture)
));
}
