Add rank_feature and rank_features to visitors/mappers

Author: russcam

src/Nest/Mapping/Visitor/IMappingVisitor.cs

@@ -49,6 +49,10 @@ public interface IMappingVisitor
 		void Visit(IIpRangeProperty property);
 
 		void Visit(IJoinProperty property);
+
+		void Visit(IRankFeatureProperty property);
+
+		void Visit(IRankFeaturesProperty property);
 	}
 
 	public class NoopMappingVisitor : IMappingVisitor
@@ -100,5 +104,9 @@ public virtual void Visit(IDateRangeProperty property) { }
 		public virtual void Visit(IIpRangeProperty property) { }
 
 		public virtual void Visit(IJoinProperty property) { }
+
+		public virtual void Visit(IRankFeatureProperty property) { }
+
+		public virtual void Visit(IRankFeaturesProperty property) { }
 	}
 }

src/Nest/Mapping/Visitor/IPropertyVisitor.cs

@@ -48,6 +48,10 @@ public interface IPropertyVisitor
 
 		void Visit(IJoinProperty type, PropertyInfo propertyInfo, ElasticsearchPropertyAttributeBase attribute);
 
+		void Visit(IRankFeatureProperty type, PropertyInfo propertyInfo, ElasticsearchPropertyAttributeBase attribute);
+
+		void Visit(IRankFeaturesProperty type, PropertyInfo propertyInfo, ElasticsearchPropertyAttributeBase attribute);
+
 		void Visit(IProperty type, PropertyInfo propertyInfo, ElasticsearchPropertyAttributeBase attribute);
 
 		IProperty Visit(PropertyInfo propertyInfo, ElasticsearchPropertyAttributeBase attribute);

src/Nest/Mapping/Visitor/MappingWalker.cs

@@ -211,6 +211,18 @@ public void Accept(IProperties properties)
 					case FieldType.Join:
 						Visit<IJoinProperty>(field, t => { _visitor.Visit(t); });
 						break;
+					case FieldType.RankFeature:
+						Visit<IRankFeatureProperty>(field, t =>
+						{
+							_visitor.Visit(t);
+						});
+						break;
+					case FieldType.RankFeatures:
+						Visit<IRankFeaturesProperty>(field, t =>
+						{
+							_visitor.Visit(t);
+						});
+						break;
 				}
 			}
 		}

src/Nest/Mapping/Visitor/NoopPropertyVisitor.cs

@@ -36,6 +36,10 @@ public void Visit(IIpRangeProperty type, PropertyInfo propertyInfo, Elasticsearc
 
 		public void Visit(IJoinProperty type, PropertyInfo propertyInfo, ElasticsearchPropertyAttributeBase attribute) { }
 
+		public virtual void Visit(IRankFeatureProperty type, PropertyInfo propertyInfo, ElasticsearchPropertyAttributeBase attribute) { }
+
+		public virtual void Visit(IRankFeaturesProperty type, PropertyInfo propertyInfo, ElasticsearchPropertyAttributeBase attribute) { }
+
 		public virtual void Visit(IIpProperty type, PropertyInfo propertyInfo, ElasticsearchPropertyAttributeBase attribute) { }
 
 		public virtual void Visit(IGeoPointProperty type, PropertyInfo propertyInfo, ElasticsearchPropertyAttributeBase attribute) { }
@@ -122,6 +126,12 @@ public void Visit(IProperty type, PropertyInfo propertyInfo, ElasticsearchProper
 				case IIpRangeProperty ipRangeType:
 					Visit(ipRangeType, propertyInfo, attribute);
 					break;
+				case IRankFeatureProperty rankFeature:
+					Visit(rankFeature, propertyInfo, attribute);
+					break;
+				case IRankFeaturesProperty rankFeatures:
+					Visit(rankFeatures, propertyInfo, attribute);
+					break;
 			}
 		}
 	}

src/Tests/Tests/Indices/MappingManagement/GetMapping/GetMappingApiTest.cs

@@ -102,6 +102,7 @@ private static void AssertVisitedProperties(GetMappingResponse response)
 			visitor.CountsShouldContainKeyAndCountBe("long_range", 1);
 			visitor.CountsShouldContainKeyAndCountBe("ip_range", 1);
 			visitor.CountsShouldContainKeyAndCountBe("nested", 1);
+			visitor.CountsShouldContainKeyAndCountBe("rank_feature", 1);
 		}
 	}
 
@@ -191,6 +192,10 @@ internal class TestVisitor : IMappingVisitor
 
 		public void Visit(ITypeMapping mapping) => Increment("type");
 
+		public void Visit(IRankFeatureProperty mapping) => Increment("rank_feature");
+
+		public void Visit(IRankFeaturesProperty mapping) => Increment("rank_features");
+
 		private void Increment(string key)
 		{
 			if (!Counts.ContainsKey(key)) Counts.Add(key, 0);