public async Task ProcessStreamItem(StreamPrice price)
{
StreamPrice currentPrice = null;
bool found = _prices.TryGetValue(price.Id, out currentPrice);
switch (price.Operation)
{
case StreamOperation.Insert:
case StreamOperation.Update:
if (!found || currentPrice.Compare(price) != 0)
{
if (_persistenceLayer != null)
{
await _persistenceLayer.ProcessStreamItem(price);
}
}
_prices[price.Id] = price;
break;
case StreamOperation.Delete:
if (found)
{
if (_persistenceLayer != null)
{
await _persistenceLayer.ProcessStreamItem(price);
}
_prices.TryRemove(price.Id, out currentPrice);
}
break;
default:
break;
}
}
private void UpsertPriceBatch(StreamPrice price, IStreamPersisterBatch tx = null)
{
var batchPersister = tx as SqlBatchStreamPersister;
var IntrumentTmp = price.Id.Split(':')[1];
var InstrumentIdSplit = IntrumentTmp.Split('-');
var MarketId = int.Parse(InstrumentIdSplit[0]);
var SubmarketId = int.Parse(InstrumentIdSplit[1]);
var Id = int.Parse(InstrumentIdSplit[2]);
batchPersister.AddRow((MarketId * 10 + SubmarketId) * 1000000 + Id, price.PriceLatest, price.PriceDate, price.Date, price.SequenceNumber);
}
private async Task UpsertPrice(StreamPrice price)
{
var CallSPCmd = new SqlCommand();
await DoSqlCmd(CallSPCmd, () =>
{
var IntrumentTmp = price.Id.Split(':')[1];
var InstrumentIdSplit = IntrumentTmp.Split('-');
var MarketId = int.Parse(InstrumentIdSplit[0]);
var SubmarketId = int.Parse(InstrumentIdSplit[1]);
var Id = int.Parse(InstrumentIdSplit[2]);
CallSPCmd.CommandText = "exec UpsertPrice @InstrumentId, @Price, @PriceLatest, @Timestamp, @SequenceNumber";
CallSPCmd.Parameters.Add("@InstrumentId", SqlDbType.Int).Value = (MarketId * 10 + SubmarketId) * 1000000 + Id;
CallSPCmd.Parameters.Add("@Price", SqlDbType.Float).Value = price.PriceLatest;
CallSPCmd.Parameters.Add("@Pricelatest", SqlDbType.DateTime).Value = price.PriceDate;
CallSPCmd.Parameters.Add("@Timestamp", SqlDbType.DateTime).Value = price.Date;
CallSPCmd.Parameters.Add("@SequenceNumber", SqlDbType.BigInt).Value = price.SequenceNumber;
});
}
public virtual Task PriceUpdated(StreamPrice streamItem)
{
return(Task.CompletedTask);
}
public override Task PriceDeleted(StreamPrice streamItem)
{
return(_dataLayer.ProcessStreamItem(streamItem));
}