优化ETL过滤模块

Author: nnhy

NewLife.Cube/Areas/Admin/Controllers/FileController.cs

@@ -57,12 +57,14 @@ private FileItem GetItme(String r)
             var inf = GetFile(r) as FileSystemInfo ?? GetDirectory(r);
             if (inf == null) return null;
 
-            var fi = new FileItem();
-            fi.Name = inf.Name;
-            fi.FullName = GetFullName(inf.FullName);
-            fi.Raw = inf.FullName;
-            fi.Directory = inf is DirectoryInfo;
-            fi.LastWrite = inf.LastWriteTime;
+            var fi = new FileItem
+            {
+                Name = inf.Name,
+                FullName = GetFullName(inf.FullName),
+                Raw = inf.FullName,
+                Directory = inf is DirectoryInfo,
+                LastWrite = inf.LastWriteTime
+            };
 
             if (inf is FileInfo)
             {

XCode/Transform/ETL.cs

@@ -81,21 +81,23 @@ public ETL(IEntityOperate source) : this()
         /// <summary>开始</summary>
         public virtual void Start()
         {
+            Modules.Start();
+
             var ext = Extracter;
             if (ext == null) throw new ArgumentNullException(nameof(Extracter), "没有设置数据抽取器");
 
             //if (ext.Setting == null) ext.Setting = new ExtractSetting();
             ext.Init();
 
             if (Stat == null) Stat = new ETLStat();
-
-            Modules.Init(this);
         }
 
         /// <summary>停止</summary>
         public virtual void Stop()
         {
             _Inited = false;
+
+            Modules.Stop();
         }
         #endregion
 
@@ -108,17 +110,18 @@ protected virtual Boolean Init(IExtractSetting set)
         {
             WriteLog("开始处理{0}，区间({1} + {3:n0}, {2})", Name, set.Start, set.End, set.Row);
 
+            Modules.Init();
+
             return true;
         }
 
         /// <summary>抽取并处理一批数据</summary>
         /// <returns>返回抽取数据行数，没有数据返回0，初始化或配置失败返回-1</returns>
         public virtual Int32 Process()
         {
-            if (!Modules.Processing()) return -1;
+            if (!Modules.Processing()) { _Inited = false; return -1; }
 
             var set = Extracter.Setting;
-            if (set == null) { _Inited = false; return -1; }
 
             if (!_Inited)
             {

XCode/Transform/IETLModule.cs

@@ -9,23 +9,60 @@ namespace XCode.Transform
     /// <summary>数据抽取模块，用于自定义抽取过程中各个环节</summary>
     public interface IETLModule
     {
-        void Init(ETL etl);
+        /// <summary>开始调度</summary>
+        void Start();
 
+        /// <summary>停止调度</summary>
+        void Stop();
+
+        /// <summary>首次初始化任务</summary>
+        void Init();
+
+        /// <summary>单批数据处理前</summary>
+        /// <returns></returns>
         Boolean Processing();
+
+        /// <summary>单批数据处理后</summary>
         void Processed();
 
+        /// <summary>实体列表完成后</summary>
+        /// <param name="list"></param>
+        /// <param name="set"></param>
+        /// <param name="success"></param>
+        /// <param name="fetchCost"></param>
+        /// <param name="processCost"></param>
         void OnFinished(IList<IEntity> list, IExtractSetting set, Int32 success, Double fetchCost, Double processCost);
 
+        /// <summary>出错</summary>
+        /// <param name="source"></param>
+        /// <param name="set"></param>
+        /// <param name="ex"></param>
         void OnError(Object source, IExtractSetting set, Exception ex);
     }
 
     static class ETLModuleHelper
     {
-        public static void Init(this IEnumerable<IETLModule> list, ETL etl)
+        public static void Start(this IEnumerable<IETLModule> list)
+        {
+            foreach (var item in list)
+            {
+                item.Start();
+            }
+        }
+
+        public static void Stop(this IEnumerable<IETLModule> list)
+        {
+            foreach (var item in list)
+            {
+                item.Stop();
+            }
+        }
+
+        public static void Init(this IEnumerable<IETLModule> list)
         {
             foreach (var item in list)
             {
-                item.Init(etl);
+                item.Init();
             }
         }