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 Python.Runtime;
+using QuantConnect.Python;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace QuantConnect.Securities
+{
+    /// <summary>
+    /// Provides an implementation of <see cref="ISecurityInitializer"/> that executes
+    /// each initializer in order
+    /// </summary>
+    public class CompositeSecurityInitializer : ISecurityInitializer
+    {
+        private readonly List<ISecurityInitializer> _initializers;
+
+        /// <summary>
+        /// Gets the list of internal security initializers
+        /// </summary>
+        public List<ISecurityInitializer> Initializers => _initializers.ToList();
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="CompositeSecurityInitializer"/> class
+        /// </summary>
+        /// <param name="initializers">The initializers to execute in order</param>
+        public CompositeSecurityInitializer(params PyObject[] initializers)
+        {
+            _initializers = initializers.Select(x => (ISecurityInitializer)new SecurityInitializerPythonWrapper(x)).ToList();
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="CompositeSecurityInitializer"/> class
+        /// </summary>
+        /// <param name="initializers">The initializers to execute in order</param>
+        public CompositeSecurityInitializer(params ISecurityInitializer[] initializers)
+        {
+            _initializers = initializers.ToList();
+        }
+
+        /// <summary>
+        /// Execute each of the internally held initializers in sequence
+        /// </summary>
+        /// <param name="security">The security to be initialized</param>
+        public void Initialize(Security security)
+        {
+            foreach (var initializer in _initializers)
+            {
+                initializer.Initialize(security);
+            }
+        }
+
+        /// <summary>
+        /// Adds a new security initializer to this composite initializer
+        /// </summary>
+        /// <param name="initializer">The initializer to add</param>
+        public void AddSecurityInitializer(ISecurityInitializer initializer)
+        {
+            _initializers.Add(initializer);
+        }
+    }
+}