private void SaveStockPrice(Stock stock)
{
var store = DocumentStore.Store;
using (var session = store.OpenSession())
{
var dbStock = session.Load<Stock>("stocks/" + stock.Symbol);
if (dbStock == null)
{
session.Store(stock);
}
else
{
dbStock.Price = stock.Price;
}
session.SaveChanges();
}
}
private bool TryUpdateStockPrice(Stock stock)
{
// Randomly choose whether to update this stock or not
var r = _updateOrNotRandom.NextDouble();
if (r > .1)
{
return false;
}
// Update the stock price by a random factor of the range percent
var random = new Random((int)Math.Floor(stock.Price));
var percentChange = random.NextDouble() * _rangePercent;
var pos = random.NextDouble() > .51;
var change = Math.Round(stock.Price * (decimal)percentChange, 2);
change = pos ? change : -change;
stock.Price += change;
return true;
}
private void BroadcastStockPrice(Stock stock)
{
Clients.All.updateStockPrice(stock);
}