从山证v2.3.0拷贝

2024-05-09 14:06:26 +08:00
parent 566ff33259
commit f9d8a256a6
4471 changed files with 1203456 additions and 9 deletions
@@ -0,0 +1,69 @@
+namespace YLErp.Modules.DataProviderModule
+{
+    /// <summary>
+    /// 标的信息提供(这个类一般用于结算和涉及到历史数据时的业务)
+    /// </summary>
+    public class UnderlyingProvider : YLBaseService
+    {
+        private Dictionary<string, underlying_manager> _underlyingDic;
+
+        public UnderlyingProvider(OptUserInfo userInfo) : base(userInfo)
+        {
+
+        }
+
+        public UnderlyingProvider(YLBaseService baseService) : base(baseService)
+        {
+        }
+
+        /// <summary>
+        /// 初始化基础缓存,可以不调用,
+        /// 如果涉及到批量处理时调用后提升一定的数据访问性能
+        /// </summary>
+        public UnderlyingProvider Initialize(DateTime? minMaturityDate)
+        {
+            var date = (minMaturityDate ?? DateTime.Today).AddDays(-30);
+            _underlyingDic = DbContext.underlying_manager.AsNoTracking()
+                       .Where(n => n.MaturityDate >= date && n.UnderlyingInstrumentType == ConsGlobal.InstrumentType.CommodityFutures)
+                       .ToDictionary(n => n.UnderlyingCode, StringComparer.OrdinalIgnoreCase);
+            return this;
+        }
+
+        /// <summary>
+        /// 数据字典(初始化缓存后累加方式继续积累缓存)
+        /// </summary>
+        private Dictionary<string, underlying_manager> UnderlyingDic
+        {
+            get
+            {
+                return _underlyingDic ?? (_underlyingDic = new Dictionary<string, underlying_manager>(StringComparer.OrdinalIgnoreCase));
+            }
+        }
+
+        /// <summary>
+        /// 根据代码获取标的信息
+        /// </summary>
+        public underlying_manager GetUnderlying(string underlyingCode)
+        {
+            if (underlyingCode is null)
+            {
+                throw new ArgumentNullException(nameof(underlyingCode));
+            }
+
+            if (!UnderlyingDic.TryGetValue(underlyingCode, out var underlying))
+            {
+                UnderlyingDic[underlyingCode] = underlying = DbContext.underlying_manager.AsNoTracking().FirstOrDefault(n => n.UnderlyingCode == underlyingCode);
+            }
+
+            return underlying;
+        }
+
+        /// <summary>
+        /// 返回数据查询接口(现在返回的是EF查询接口)
+        /// </summary>
+        public IQueryable<underlying_manager> GetUnderlyingQuery()
+        {
+            return DbContext.underlying_manager.AsNoTracking();
+        }
+    }
+}