public void Add(Quotation quotation)
{
if (quotation == null)
{
throw new ArgumentNullException(nameof(quotation));
}
QuotationQueue queue;
if (!_list.ContainsKey(quotation.Symbol.Id))
{
queue = new QuotationQueue();
if (!_list.TryAdd(quotation.Symbol.Id, queue))
{
queue = _list[quotation.Symbol.Id];
}
}
else
{
queue = _list[quotation.Symbol.Id];
}
var previous = Get(quotation.Symbol.Id);
if (previous != null)
{
quotation.Direction = previous.Bid > quotation.Bid ? Direction.Down : Direction.Up;
}
queue.Add(quotation);
}
private void ClearExpire(QuotationQueue queue)
{
queue.Remove(ExpireSeconds);
}
