/// <summary>
/// To create a Reactive Extension for the event of candle total volume excess above a specific level.
/// </summary>
/// <param name="candleManager">The candles manager.</param>
/// <param name="series">Candles series, from which a candle will be taken.</param>
/// <param name="volume">The level. If the <see cref="Unit.Type"/> type equals to <see cref="UnitTypes.Limit"/>, specified price is set. Otherwise, shift value is specified.</param>
/// <returns>Reactive Extension.</returns>
public static IObservable <Candle> RxWhenCurrentCandleTotalVolumeMore(this ICandleManager candleManager,
CandleSeries series, Unit volume)
{
if (series == null)
{
throw new ArgumentNullException(nameof(series));
}
if (volume == null)
{
throw new ArgumentNullException(nameof(volume));
}
var finishVolume = volume;
if (volume.Type != UnitTypes.Limit)
{
var curCandle = candleManager.GetCurrentCandle <Candle>(series);
if (curCandle == null)
{
throw new ArgumentException(nameof(series));
}
finishVolume = curCandle.TotalVolume + volume;
}
return(candleManager.RxProcessing()
.Where(arg => arg.Series == series && arg.Candle.TotalVolume > finishVolume)
.Select(arg => arg.Candle));
}
/// <summary>
/// To create a Reactive Extension for candle change event.
/// </summary>
/// <param name="candleManager">The candles manager.</param>
/// <param name="candle">The candle to be traced for change.</param>
/// <returns>Reactive Extension.</returns>
public static IObservable <Candle> RxWhenChanged(this ICandleManager candleManager, Candle candle)
{
if (candle == null)
{
throw new ArgumentNullException(nameof(candle));
}
return(candleManager.RxProcessing().Where(arg => arg.Candle == candle).Select(arg => arg.Candle));
}
/// <summary>
/// To create a Reactive Extension for the event of candle closing price excess above a specific level.
/// </summary>
/// <param name="candleManager">The candles manager.</param>
/// <param name="candle">The candle to be traced for the event of candle closing price excess above a specific level.</param>
/// <param name="price">The level. If the <see cref="Unit.Type"/> type equals to <see cref="UnitTypes.Limit"/>, specified price is set. Otherwise, shift value is specified.</param>
/// <returns>Reactive Extension.</returns>
public static IObservable <Candle> RxWhenClosePriceMore(this ICandleManager candleManager, Candle candle,
Unit price)
{
if (candle == null)
{
throw new ArgumentNullException(nameof(candle));
}
if (price == null)
{
throw new ArgumentNullException(nameof(price));
}
return(candleManager.RxProcessing().Where(arg => arg.Candle == candle && arg.Candle.ClosePrice > price)
.Select(arg => arg.Candle));
}
/// <summary>
/// To create a Reactive Extension for the event of candle total volume excess above a specific level.
/// </summary>
/// <param name="candleManager">The candles manager.</param>
/// <param name="candle">The candle to be traced for the event of candle total volume excess above a specific level.</param>
/// <param name="volume">The level. If the <see cref="Unit.Type"/> type equals to <see cref="UnitTypes.Limit"/>, specified price is set. Otherwise, shift value is specified.</param>
/// <returns>Reactive Extension.</returns>
public static IObservable <Candle> RxWhenTotalVolumeMore(this ICandleManager candleManager, Candle candle,
Unit volume)
{
if (candle == null)
{
throw new ArgumentNullException(nameof(candle));
}
if (volume == null)
{
throw new ArgumentNullException(nameof(volume));
}
var finishVolume = volume.Type == UnitTypes.Limit ? volume : candle.TotalVolume + volume;
return(candleManager.RxProcessing()
.Where(arg => arg.Candle == candle && arg.Candle.TotalVolume > finishVolume)
.Select(arg => arg.Candle));
}
