Move generic Get/Set into Interface

Author: benaadams

src/Microsoft.AspNet.Http.Features/FeatureCollection.cs

@@ -93,6 +93,16 @@ public IEnumerator<KeyValuePair<Type, object>> GetEnumerator()
  }
  }
 
+ public TFeature Get<TFeature>()
+ {
+ return (TFeature)this[typeof(TFeature)];
+ }
+
+ public void Set<TFeature>(TFeature instance)
+ {
+ this[typeof(TFeature)] = instance;
+ }
+
  private class KeyComparer : IEqualityComparer<KeyValuePair<Type, object>>
  {
  public bool Equals(KeyValuePair<Type, object> x, KeyValuePair<Type, object> y)

src/Microsoft.AspNet.Http.Features/FeatureCollectionExtensions.cs

@@ -27,5 +27,19 @@ public interface IFeatureCollection : IEnumerable<KeyValuePair<Type, object>>
  /// <param name="key"></param>
  /// <returns>The requested feature, or null if it is not present.</returns>
  object this[Type key] { get; set; }
+
+ /// <summary>
+ /// Retrieves the requested feature from the collection.
+ /// </summary>
+ /// <typeparam name="TFeature">The feature key.</typeparam>
+ /// <returns>The requested feature, or null if it is not present.</returns>
+ TFeature Get<TFeature>();
+
+ /// <summary>
+ /// Sets the given feature in the collection.
+ /// </summary>
+ /// <typeparam name="TFeature">The feature key.</typeparam>
+ /// <param name="instance">The feature value.</param>
+ void Set<TFeature>(TFeature instance);
  }
 }

src/Microsoft.AspNet.Http.Features/IFeatureCollection.cs

@@ -358,6 +358,16 @@ public void Set(Type key, object value)
  throw new NotSupportedException();
  }
 
+ public TFeature Get<TFeature>()
+ {
+ return (TFeature)this[typeof(TFeature)];
+ }
+
+ public void Set<TFeature>(TFeature instance)
+ {
+ this[typeof(TFeature)] = instance;
+ }
+
  IEnumerator IEnumerable.GetEnumerator()
  {
  return GetEnumerator();