chore: import upstream snapshot with attribution

2026-07-13 13:02:50 +08:00
commit 0fc60fdcb1
5008 changed files with 910633 additions and 0 deletions
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+/*
+ * 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.Data.Auxiliary;
+
+namespace QuantConnect.Interfaces
+{
+    /// <summary>
+    /// Provides instances of <see cref="FactorFile{T}"/> at run time
+    /// </summary>
+    [InheritedExport(typeof(IFactorFileProvider))]
+    public interface IFactorFileProvider
+    {
+        /// <summary>
+        /// Initializes our FactorFileProvider by supplying our mapFileProvider
+        /// and dataProvider
+        /// </summary>
+        /// <param name="mapFileProvider">MapFileProvider to use</param>
+        /// <param name="dataProvider">DataProvider to use</param>
+        void Initialize(IMapFileProvider mapFileProvider, IDataProvider dataProvider);
+
+        /// <summary>
+        /// Gets a <see cref="FactorFile{T}"/> instance for the specified symbol, or null if not found
+        /// </summary>
+        /// <param name="symbol">The security's symbol whose factor file we seek</param>
+        /// <returns>The resolved factor file, or null if not found</returns>
+        IFactorProvider Get(Symbol symbol);
+    }
+}