files tree made better.

src/Yavsc.Abstract/Workflow/Tasks/IExecutionData.cs

@@ -0,0 +1,17 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+
+namespace Yavsc.Abstract.Workflow
+{
+    public interface IExecutionData
+    {
+         Task Payload { get; }
+
+         ITaskMetaData MetaData { get; }
+         
+         string [] Args { get; }
+        IList<IMayBeFixable> Faults { get; } 
+
+    }
+}

src/Yavsc.Abstract/Workflow/Tasks/IMayBeFixable.cs

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+namespace Yavsc.Abstract.Workflow
+{
+    public interface IMayBeFixable
+    {
+         bool Fixable { get; }
+
+         void TryAndFix();
+    }
+}

src/Yavsc.Abstract/Workflow/Tasks/IRequisition.cs

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+namespace Yavsc.Models
+{
+    public interface IRequisition
+    {
+        bool Eval();
+    }
+}

src/Yavsc.Abstract/Workflow/Tasks/ITaskMetaData.cs

@@ -0,0 +1,11 @@
+using System.Collections.Generic;
+using Yavsc.Models;
+
+namespace Yavsc.Abstract.Workflow
+{
+    public interface ITaskMetaData
+    {
+        string TaskName { get; }
+        IEnumerable <IRequisition> Prerequisites { get; }
+    }
+}

src/Yavsc.Abstract/Workflow/Tasks/ITaskRunner.cs

@@ -0,0 +1,7 @@
+namespace Yavsc.Abstract.Workflow
+{
+    public interface ITaskRunner
+    {
+        IExecutionData Run( ITaskMetaData taskMetaData, string [] args);
+    }
+}

src/Yavsc.Abstract/Workflow/Tasks/ITaskRunnerProvider.cs

@@ -0,0 +1,8 @@
+namespace Yavsc.Abstract.Workflow
+{
+    public interface ITaskRunnerProvider
+    {
+         ITaskRunner[] FindRunner(string runnerName);
+         
+    }
+}

src/Yavsc.Abstract/Workflow/Tasks/TaskManager.cs

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+using System.Collections.Generic;
+using System.Linq;
+
+namespace Yavsc.Abstract.Workflow
+{
+    public class TaskManager : ITaskRunnerProvider
+    {
+        List<ITaskRunner> runners = new List<ITaskRunner>();
+        public void Register(ITaskRunner runner)
+        {
+            runners.Add(runner);
+        }
+        public ITaskRunner[] FindRunner(string runnerName)
+        {
+            if (string.IsNullOrWhiteSpace(runnerName))
+            return runners.ToArray();
+           return runners.Where(r => r.GetType().Name.IndexOf(runnerName.Trim())>=0).ToArray();
+        }
+    }
+}