From fd5877acb4d961de6dfa99bc8e195cfe449888d8 Mon Sep 17 00:00:00 2001
From: J W <woodjon@gmail.com>
Date: Fri, 15 Mar 2019 19:47:07 -0400
Subject: [PATCH 1/2] Initial add of loading model by path

---
 src/Microsoft.ML.Data/DataLoadSave/TransformerChain.cs    | 8 ++++++++
 src/Microsoft.ML.Data/Model/ModelOperationsCatalog.cs     | 2 ++
 .../Api/CookbookSamples/CookbookSamplesDynamicApi.cs      | 4 +---
 3 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/src/Microsoft.ML.Data/DataLoadSave/TransformerChain.cs b/src/Microsoft.ML.Data/DataLoadSave/TransformerChain.cs
index a20bc5113c..8402cf643a 100644
--- a/src/Microsoft.ML.Data/DataLoadSave/TransformerChain.cs
+++ b/src/Microsoft.ML.Data/DataLoadSave/TransformerChain.cs
@@ -300,5 +300,13 @@ public static TransformerChain<ITransformer> LoadFrom(IHostEnvironment env, Stre
                 }
             }
         }
+
+        public static TransformerChain<ITransformer> LoadFromPath(IHostEnvironment env, string modelPath)
+        {
+            using (var stream = File.OpenRead(modelPath))
+            {
+                return LoadFrom(env, stream);
+            }
+        }
     }
 }
diff --git a/src/Microsoft.ML.Data/Model/ModelOperationsCatalog.cs b/src/Microsoft.ML.Data/Model/ModelOperationsCatalog.cs
index 0443240e1d..3ee384154a 100644
--- a/src/Microsoft.ML.Data/Model/ModelOperationsCatalog.cs
+++ b/src/Microsoft.ML.Data/Model/ModelOperationsCatalog.cs
@@ -40,6 +40,8 @@ internal ModelOperationsCatalog(IHostEnvironment env)
         /// <returns>The loaded model.</returns>
         public ITransformer Load(Stream stream) => TransformerChain.LoadFrom(_env, stream);
 
+        public ITransformer Load(string modelPath) => TransformerChain.LoadFromPath(_env, modelPath);
+
         /// <summary>
         /// The catalog of model explainability operations.
         /// </summary>
diff --git a/test/Microsoft.ML.Tests/Scenarios/Api/CookbookSamples/CookbookSamplesDynamicApi.cs b/test/Microsoft.ML.Tests/Scenarios/Api/CookbookSamples/CookbookSamplesDynamicApi.cs
index cebf20503e..413c54f83d 100644
--- a/test/Microsoft.ML.Tests/Scenarios/Api/CookbookSamples/CookbookSamplesDynamicApi.cs
+++ b/test/Microsoft.ML.Tests/Scenarios/Api/CookbookSamples/CookbookSamplesDynamicApi.cs
@@ -130,9 +130,7 @@ private void TrainRegression(string trainDataPath, string testDataPath, string m
             // Potentially, the lines below can be in a different process altogether.
 
             // When you load the model, it's a 'dynamic' transformer. 
-            ITransformer loadedModel;
-            using (var stream = File.OpenRead(modelPath))
-                loadedModel = mlContext.Model.Load(stream);
+            ITransformer loadedModel = mlContext.Model.Load(modelPath);
         }
 
         [Fact]

From b2da9bd6e74ce06c9d24c6d31871989545fdd887 Mon Sep 17 00:00:00 2001
From: J W <woodjon@gmail.com>
Date: Fri, 15 Mar 2019 19:52:10 -0400
Subject: [PATCH 2/2] Add XML doc

---
 src/Microsoft.ML.Data/Model/ModelOperationsCatalog.cs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Microsoft.ML.Data/Model/ModelOperationsCatalog.cs b/src/Microsoft.ML.Data/Model/ModelOperationsCatalog.cs
index 3ee384154a..8e9bd0df28 100644
--- a/src/Microsoft.ML.Data/Model/ModelOperationsCatalog.cs
+++ b/src/Microsoft.ML.Data/Model/ModelOperationsCatalog.cs
@@ -40,6 +40,11 @@ internal ModelOperationsCatalog(IHostEnvironment env)
         /// <returns>The loaded model.</returns>
         public ITransformer Load(Stream stream) => TransformerChain.LoadFrom(_env, stream);
 
+        /// <summary>
+        /// Load the model from a filePath of the model.
+        /// </summary>
+        /// <param name="modelPath">The path of the model to load./></param>
+        /// <returns>The loaded model.</returns>
         public ITransformer Load(string modelPath) => TransformerChain.LoadFromPath(_env, modelPath);
 
         /// <summary>