Files
quantconnect--lean/Engine/Alphas/IAlphaHandler.cs
T
2020-03-31 20:53:19 -03:00

68 lines
2.7 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 System.ComponentModel.Composition;
using QuantConnect.Interfaces;
using QuantConnect.Lean.Engine.TransactionHandlers;
using QuantConnect.Packets;
namespace QuantConnect.Lean.Engine.Alpha
{
/// <summary>
/// Alpha handler defines how to process insights generated by an algorithm
/// </summary>
[InheritedExport(typeof(IAlphaHandler))]
public interface IAlphaHandler
{
/// <summary>
/// Gets a flag indicating if this handler's thread is still running and processing messages
/// </summary>
bool IsActive { get; }
/// <summary>
/// Gets the current alpha runtime statistics
/// </summary>
AlphaRuntimeStatistics RuntimeStatistics { get; }
/// <summary>
/// Initializes this alpha handler to accept insights from the specified algorithm
/// </summary>
/// <param name="job">The algorithm job</param>
/// <param name="algorithm">The algorithm instance</param>
/// <param name="messagingHandler">Handler used for sending insights</param>
/// <param name="api">Api instance</param>
/// <param name="transactionHandler">Algorithms transaction handler</param>
void Initialize(AlgorithmNodePacket job, IAlgorithm algorithm, IMessagingHandler messagingHandler, IApi api, ITransactionHandler transactionHandler);
/// <summary>
/// Invoked after the algorithm's Initialize method was called allowing the alpha handler to check
/// other things, such as sampling period for backtests
/// </summary>
/// <param name="algorithm">The algorithm instance</param>
void OnAfterAlgorithmInitialized(IAlgorithm algorithm);
/// <summary>
/// Performs processing in sync with the algorithm's time loop to provide consisten reading of data
/// </summary>
void ProcessSynchronousEvents();
/// <summary>
/// Stops processing in the <see cref="Run"/> method
/// </summary>
void Exit();
}
}