Files
quantconnect--lean/Engine/DataFeeds/PrecalculatedSubscriptionData.cs
Adalyat Nazirov 7bb143b215 Bug 4031 Change data depending on configuration (#4650)
* Calculate both raw and adjuasted prices for backtesting

* disable second price factoring

* move and reuse method

* test coverage for new methods

* reuse scaling method

* reuse subscriptionData.Create method

* removed unused code

* regression test

* switch to aapl

* fix regression test output

* more asserts

* fix comments - reduce shortcuts and abbrevation

* more comments

* merge parameters

* reduce number of getting price factors

* fix tests

* fix tests

* fix regression tests

* calculate TotalReturn on demand

* include TotalReturn calculations

* perf tuning

* more unit tests for SubscriptionData.Create

* simplify things - store and return only raw and precalculated data

* fix regression tests; change it back

* factor equals 1 for Raw data

* small changes

* follow code style

* implement backward compatibility
2020-09-09 18:40:19 -03:00

70 lines
2.9 KiB
C#

/*
* QUANTCONNECT.COM - Democratizing Finance, Empowering Individuals.
* Lean Algorithmic Trading Engine v2.0. Copyright 2014 QuantConnect Corporation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using QuantConnect.Data;
using System;
namespace QuantConnect.Lean.Engine.DataFeeds
{
/// <summary>
/// Store data both raw and adjusted and the time at which it should be synchronized
/// </summary>
public class PrecalculatedSubscriptionData : SubscriptionData
{
private BaseData _normalizedData;
private SubscriptionDataConfig _config;
private readonly DataNormalizationMode _mode;
/// <summary>
/// Gets the data
/// </summary>
public override BaseData Data
{
get
{
if (_config.DataNormalizationMode == DataNormalizationMode.Raw)
{
return _data;
}
else if (_config.DataNormalizationMode == _mode)
{
return _normalizedData;
}
else
{
throw new ArgumentException($"DataNormalizationMode.{_config.DataNormalizationMode} was requested for "
+ $"symbol {_data.Symbol} but only {_mode} and Raw DataNormalizationMode are available. "
+ "Please configure the desired DataNormalizationMode initially when adding the Symbol");
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="PrecalculatedSubscriptionData"/> class
/// </summary>
/// <param name="configuration">The subscription's configuration</param>
/// <param name="rawData">The base data</param>
/// <param name="normalizedData">The normalized calculated based on raw data</param>
/// <param name="normalizationMode">Specifies how data is normalized</param>
/// <param name="emitTimeUtc">The emit time for the data</param>
public PrecalculatedSubscriptionData(SubscriptionDataConfig configuration, BaseData rawData, BaseData normalizedData, DataNormalizationMode normalizationMode, DateTime emitTimeUtc)
: base(rawData, emitTimeUtc)
{
_config = configuration;
_normalizedData = normalizedData;
_mode = normalizationMode;
}
}
}