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
@@ -0,0 +1,102 @@
+/*
+ * 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;
+using NodaTime;
+using QuantConnect.Util;
+
+namespace QuantConnect.Lean.Engine.DataFeeds
+{
+    /// <summary>
+    /// Provides an implementation of <see cref="ITimeProvider"/> that can be
+    /// manually advanced through time
+    /// </summary>
+    public class ManualTimeProvider : ITimeProvider
+    {
+        private volatile ReferenceWrapper<DateTime> _currentTime;
+        private readonly DateTimeZone _setCurrentTimeTimeZone;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ManualTimeProvider"/>
+        /// </summary>
+        /// <param name="setCurrentTimeTimeZone">Specify to use this time zone when calling <see cref="SetCurrentTime"/>,
+        /// leave null for the default of <see cref="TimeZones.Utc"/></param>
+        public ManualTimeProvider(DateTimeZone setCurrentTimeTimeZone = null)
+        {
+            _setCurrentTimeTimeZone = setCurrentTimeTimeZone ?? TimeZones.Utc;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ManualTimeProvider"/> class
+        /// </summary>
+        /// <param name="currentTime">The current time in the specified time zone, if the time zone is
+        /// null then the time is interpreted as being in <see cref="TimeZones.Utc"/></param>
+        /// <param name="setCurrentTimeTimeZone">Specify to use this time zone when calling <see cref="SetCurrentTime"/>,
+        /// leave null for the default of <see cref="TimeZones.Utc"/></param>
+        public ManualTimeProvider(DateTime currentTime, DateTimeZone setCurrentTimeTimeZone = null)
+            : this(setCurrentTimeTimeZone)
+        {
+            _currentTime = new ReferenceWrapper<DateTime>(currentTime.ConvertToUtc(_setCurrentTimeTimeZone));
+        }
+
+        /// <summary>
+        /// Gets the current time in UTC
+        /// </summary>
+        /// <returns>The current time in UTC</returns>
+        public DateTime GetUtcNow()
+        {
+            return _currentTime.Value;
+        }
+
+        /// <summary>
+        /// Sets the current time interpreting the specified time as a UTC time
+        /// </summary>
+        /// <param name="time">The current time in UTC</param>
+        public void SetCurrentTimeUtc(DateTime time)
+        {
+            _currentTime = new ReferenceWrapper<DateTime>(time);
+        }
+
+        /// <summary>
+        /// Sets the current time interpeting the specified time as a local time
+        /// using the time zone used at instatiation.
+        /// </summary>
+        /// <param name="time">The local time to set the current time time, will be
+        /// converted into UTC</param>
+        public void SetCurrentTime(DateTime time)
+        {
+            SetCurrentTimeUtc(time.ConvertToUtc(_setCurrentTimeTimeZone));
+        }
+
+        /// <summary>
+        /// Advances the current time by the specified span
+        /// </summary>
+        /// <param name="span">The amount of time to advance the current time by</param>
+        public void Advance(TimeSpan span)
+        {
+            _currentTime = new ReferenceWrapper<DateTime>(_currentTime.Value + span);
+        }
+
+        /// <summary>
+        /// Advances the current time by the specified number of seconds
+        /// </summary>
+        /// <param name="seconds">The number of seconds to advance the current time by</param>
+        public void AdvanceSeconds(double seconds)
+        {
+            Advance(TimeSpan.FromSeconds(seconds));
+        }
+    }
+}