Add Allocation Delay and Remaining Delay to Cluster Allocation Explain API

See elastic/elasticsearch#17515

Author: russcam

src/Nest/Cluster/ClusterAllocationExplain/ClusterAllocationExplainResponse.cs

@@ -14,9 +14,27 @@ public interface IClusterAllocationExplainResponse : IResponse
 		[JsonProperty("assigned")]
 		bool Assigned { get; set; }
 
+		[JsonProperty("assigned_node_id")]
+		string AssignedNodeId { get; set; }
+
+		[JsonProperty("shard_state_fetch_pending")]
+		bool ShardStateFetchPending { get; set; }
+
 		[JsonProperty("unassigned_info")]
 		UnassignedInformation UnassignedInformation { get; set; }
 
+		[JsonProperty("allocation_delay")]
+		string AllocationDelay { get; set; }
+
+		[JsonProperty("allocation_delay_ms")]
+		long AllocationDelayInMilliseconds { get; set; }
+
+		[JsonProperty("remaining_delay")]
+		string RemainingDelay { get; set; }
+
+		[JsonProperty("remaining_delay_ms")]
+		long RemainingDelayInMilliseconds { get; set; }
+
 		[JsonProperty("nodes")]
 		[JsonConverter(typeof(VerbatimDictionaryKeysJsonConverter))]
 		Dictionary<string, NodeAllocationExplanation> Nodes { get; set; }
@@ -28,8 +46,20 @@ public class ClusterAllocationExplainResponse : ResponseBase, IClusterAllocation
 
 		public bool Assigned { get; set; }
 
+		public string AssignedNodeId { get; set; }
+
+		public bool ShardStateFetchPending { get; set; }
+
 		public UnassignedInformation UnassignedInformation { get; set; }
 
+		public string AllocationDelay { get; set; }
+
+		public long AllocationDelayInMilliseconds { get; set; }
+
+		public string RemainingDelay { get; set; }
+
+		public long RemainingDelayInMilliseconds { get; set; }
+
 		public Dictionary<string, NodeAllocationExplanation> Nodes { get; set; }
 	}
 
@@ -58,17 +88,30 @@ public class NodeAllocationExplanation
 		[JsonProperty("node_attributes")]
 		public Dictionary<string,string> NodeAttributes { get; set; }
 
+		[JsonProperty("store")]
+		public AllocationStore Store { get; set; }
+
 		// TODO: Are there enum values for this?
 		[JsonProperty("final_decision")]
 		public string FinalDecision { get; set; }
 
+		[JsonProperty("final_explanation")]
+		public string FinalExplanation { get; set; }
+
 		[JsonProperty("weight")]
 		public float Weight { get; set; }
 
 		[JsonProperty("decisions")]
 		public IEnumerable<AllocationDecision> Decisions { get; set; }
 	}
 
+	[JsonObject]
+	public class AllocationStore
+	{
+		[JsonProperty("shard_copy")]
+		public string ShardCopy { get; set; }
+	}
+
 	[JsonObject]
 	public class AllocationDecision
 	{

src/Tests/Cluster/ClusterAllocationExplain/ClusterAllocationExplainApiTests.cs

@@ -54,15 +54,21 @@ protected override void ExpectResponse(IClusterAllocationExplainResponse respons
 			response.Shard.Id.Should().Be(0);
 			response.Shard.IndexUniqueId.Should().NotBeNullOrEmpty();
 			response.Assigned.Should().BeTrue();
+			response.AssignedNodeId.Should().NotBeNullOrWhiteSpace();
+			response.ShardStateFetchPending.Should().BeFalse();
 
 			foreach (var node in response.Nodes)
 			{
 				var explanation = node.Value;
 
+
 				explanation.NodeName.Should().NotBeNullOrEmpty();
 				explanation.Weight.Should().BeGreaterOrEqualTo(0);
 				explanation.NodeAttributes.Should().NotBeEmpty();
+				explanation.Store.Should().NotBeNull();
+				explanation.Store.ShardCopy.Should().NotBeNullOrEmpty();
 				explanation.FinalDecision.Should().NotBeNullOrEmpty();
+				explanation.FinalExplanation.Should().NotBeNullOrEmpty();
 				explanation.Decisions.Should().NotBeNullOrEmpty();
 			}
 		}

src/Tests/Framework/ManagedElasticsearch/Process/ElasticsearchNode.cs

@@ -212,7 +212,8 @@ private void ValidateLicense(IElasticClient client, XplatManualResetEvent handle
 
 			var exceptionMessageStart = "Server has license plugin installed, ";
 #if DOTNETCORE
-			var licenseFile = string.Empty;
+			var licensePath = @"C:\license.json";
+			var licenseFile = File.Exists(licensePath) ? licensePath : string.Empty;
 #else
 			var licenseFile = Environment.GetEnvironmentVariable("ES_LICENSE_FILE", EnvironmentVariableTarget.Machine);
 #endif
@@ -232,7 +233,13 @@ private void ValidateLicense(IElasticClient client, XplatManualResetEvent handle
 
 			Exception exception = null;
 
-			if (license.ApiCall.Success && license.License == null)
+			if (!license.IsValid)
+			{
+				exception = license.ApiCall.HttpStatusCode == 404
+					? new Exception($"{exceptionMessageStart} but the license was not found!")
+					: new Exception($"{exceptionMessageStart} but a {license.ApiCall.HttpStatusCode} was returned!");
+			}
+			else if (license.License == null)
 				exception = new Exception($"{exceptionMessageStart}  but the license was deleted!");
 
 			else if (license.License.Status == LicenseStatus.Expired)