Clear up Name and Id parameters (#3810)

src/CodeGeneration/ApiGenerator/Domain/Specification/UrlPart.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.Transactions;
 
 namespace ApiGenerator.Domain.Specification
 {
@@ -36,49 +37,56 @@ public string ClrTypeName
 
 				switch (Name)
 				{
+					case "category_id": return "LongId";
+					case "timestamp": return "Timestamp";
+					case "index_metric": return "IndexMetrics";
+					case "metric": return "Metrics";
+
+					case "node_id" when Type == "list": 
+						return "NodeIds";
+
+					case "fields" when Type == "list": 
+						return "Fields";
+
+					case "parent_task_id":
+					case "task_id": 
+						return "TaskId";
+
+					case "forecast_id":
+					case "action_id":
+						return "Ids";
+
 					case "index":
 					case "new_index":
+					case "target": 
 						return Type == "string" ? "IndexName" : "Indices";
-					case "target":
-						return "IndexName";
-					case "type": return Type == "string" ? "Name" : "Names";
+
 					case "watch_id":
 					case "job_id":
 					case "calendar_id":
 					case "event_id":
 					case "datafeed_id":
 					case "snapshot_id":
 					case "filter_id":
-					case "id": return Type == "string" ? "Id" : "Ids";
-					case "category_id": return "CategoryId";
-					case "policy_id": return "PolicyId";
-					case "forecast_id": return "ForecastIds";
-					case "nodes":
-					case "node_id": return Type == "string" ? "NodeId" : "NodeIds";
-					case "field":
-					case "fields": return Type == "string" ? "Field" : "Fields";
-					case "index_metric": return "IndexMetrics";
-					case "metric":
-						return "Metrics";
-					case "feature": return "Features";
-					case "action_id": return "ActionIds";
+					case "policy_id":
+					case "id": 
+						return "Id";
+
 					case "application":
 					case "repository":
 					case "snapshot":
-					case "lang":
+					case "user":
 					case "username":
-					case "usernames":
-					case "realm":
 					case "realms":
 					case "alias":
 					case "context":
 					case "name":
-					case "user":
 					case "thread_pool_patterns":
+					case "type":
 						return Type == "string" ? "Name" : "Names";
-					case "parent_task_id":
-					case "task_id": return "TaskId";
-					case "timestamp": return "Timestamp";
+
+
+					//This forces a compilation error post code generation as intended
 					default: return Type + "_";
 				}
 			}

src/Elasticsearch.Net/Serialization/IUrlParameter.cs

@@ -1,3 +1,6 @@
+using System;
+using System.Globalization;
+
 namespace Elasticsearch.Net
 {
 	public interface IUrlParameter

src/Nest/CommonAbstractions/Infer/Id/Ids.cs

@@ -0,0 +1,61 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using Elasticsearch.Net;
+
+namespace Nest
+{
+	[DebuggerDisplay("{DebugDisplay,nq}")]
+	public class Ids : IUrlParameter, IEquatable<Ids>
+	{
+		private readonly List<string> _ids;
+
+		public Ids(IEnumerable<string> value) => _ids = value?.ToList();
+
+		public Ids(string value)
+		{
+			if (!value.IsNullOrEmptyCommaSeparatedList(out var arr))
+				_ids = arr.ToList();
+		}
+
+		private string DebugDisplay => ((IUrlParameter)this).GetString(null);
+
+		public bool Equals(Ids other)
+		{
+			if (other == null) return false;
+			if (_ids == null && other._ids == null) return true;
+			if (_ids == null || other._ids == null) return false;
+
+			return _ids.Count == other._ids.Count &&
+				_ids.OrderBy(id => id).SequenceEqual(other._ids.OrderBy(id => id));
+		}
+
+		string IUrlParameter.GetString(IConnectionConfigurationValues settings) =>
+			string.Join(",", _ids ?? Enumerable.Empty<string>());
+
+		public static implicit operator Ids(string value) =>
+			value.IsNullOrEmptyCommaSeparatedList(out var arr) ? null : new Ids(arr);
+
+		public static implicit operator Ids(string[] value) =>
+			value.IsEmpty() ? null : new Ids(value);
+
+		public override bool Equals(object obj) => obj is Ids other && Equals(other);
+
+		public override int GetHashCode()
+		{
+			if (_ids == null) return 0;
+			unchecked
+			{
+				var hc = 0;
+				foreach (var id in _ids.OrderBy(id => id))
+					hc = hc * 17 + id.GetHashCode();
+				return hc;
+			}
+		}
+
+		public static bool operator ==(Ids left, Ids right) => Equals(left, right);
+
+		public static bool operator !=(Ids left, Ids right) => !Equals(left, right);
+	}
+}

src/Nest/CommonAbstractions/Infer/LongId/LongId.cs

@@ -0,0 +1,39 @@
+using System;
+using System.Globalization;
+using Elasticsearch.Net;
+
+namespace Nest
+{
+	public class LongId : IUrlParameter, IEquatable<LongId>
+	{
+		internal readonly long Value;
+
+		public LongId(long value) => Value = value;
+
+		public bool Equals(LongId other) => Value == other.Value;
+
+		// ReSharper disable once ImpureMethodCallOnReadonlyValueField
+		public string GetString(IConnectionConfigurationValues settings) => Value.ToString(CultureInfo.InvariantCulture);
+
+		public static implicit operator LongId(long value) => new LongId(value);
+
+		public static implicit operator long(LongId value) => value.Value;
+
+		public override bool Equals(object obj)
+		{
+			switch (obj)
+			{
+				case int l: return Value == l;
+				case long l: return Value == l;
+				case LongId i: return Value == i.Value;
+				default: return false;
+			}
+		}
+
+		public override int GetHashCode() => Value.GetHashCode();
+
+		public static bool operator ==(LongId left, LongId right) => Equals(left, right);
+
+		public static bool operator !=(LongId left, LongId right) => !Equals(left, right);
+	}
+}