Map additional Recovery API response properties. (#4067)

This commit

- Map additonal Recovery API response properties.
- Add NullableDateTimeEpochMillisecondsFormatter

(cherry picked from commit 412b832)

src/Nest/CommonAbstractions/SerializationBehavior/JsonFormatters/DateTimeEpochMillisecondsFormatter.cs

@@ -0,0 +1,47 @@
+using System;
+using Elasticsearch.Net.Utf8Json;
+
+namespace Nest
+{
+	internal class NullableDateTimeEpochMillisecondsFormatter : IJsonFormatter<DateTime?>
+	{
+		public DateTime? Deserialize(ref JsonReader reader, IJsonFormatterResolver formatterResolver)
+		{
+			var token = reader.GetCurrentJsonToken();
+
+			switch (token)
+			{
+				case JsonToken.String:
+				{
+					var formatter = formatterResolver.GetFormatter<DateTime>();
+					return formatter.Deserialize(ref reader, formatterResolver);
+				}
+				case JsonToken.Null:
+				{
+					reader.ReadNext();
+					return null;
+				}
+				case JsonToken.Number:
+				{
+					var millisecondsSinceEpoch = reader.ReadDouble();
+					var dateTimeOffset = DateTimeUtil.Epoch.AddMilliseconds(millisecondsSinceEpoch);
+					return dateTimeOffset.DateTime;
+				}
+				default:
+					throw new Exception($"Cannot deserialize {nameof(DateTime)} from token {token}");
+			}
+		}
+
+		public void Serialize(ref JsonWriter writer, DateTime? value, IJsonFormatterResolver formatterResolver)
+		{
+			if (value == null)
+			{
+				writer.WriteNull();
+				return;
+			}
+
+			var dateTimeDifference = (value.Value - DateTimeUtil.Epoch).TotalMilliseconds;
+			writer.WriteInt64((long)dateTimeDifference);
+		}
+	}
+}

src/Nest/Indices/Monitoring/IndicesRecovery/RecoveryBytes.cs

@@ -4,16 +4,16 @@ namespace Nest
 {
 	public class RecoveryBytes
 	{
-		[DataMember(Name ="percent")]
+		[DataMember(Name = "percent")]
 		public string Percent { get; internal set; }
 
-		[DataMember(Name ="recovered")]
+		[DataMember(Name = "recovered")]
 		public long Recovered { get; internal set; }
 
-		[DataMember(Name ="reused")]
+		[DataMember(Name = "reused")]
 		public long Reused { get; internal set; }
 
-		[DataMember(Name ="total")]
+		[DataMember(Name = "total")]
 		public long Total { get; internal set; }
 	}
 }

src/Nest/Indices/Monitoring/IndicesRecovery/RecoveryIndexStatus.cs

@@ -1,16 +1,26 @@
-using System.Runtime.Serialization;
+using System;
+using System.Runtime.Serialization;
 
 namespace Nest
 {
 	public class RecoveryIndexStatus
 	{
-		[DataMember(Name ="bytes")]
-		public RecoveryBytes Bytes { get; internal set; }
+		[Obsolete("Deprecated. Use Size instead. Will be removed in 8.0")]
+		public RecoveryBytes Bytes => Size;
 
-		[DataMember(Name ="files")]
+		[DataMember(Name = "files")]
 		public RecoveryFiles Files { get; internal set; }
 
-		[DataMember(Name ="total_time_in_millis")]
+		[DataMember(Name = "size")]
+		public RecoveryBytes Size { get; internal set; }
+
+		[DataMember(Name = "source_throttle_time_in_millis")]
+		public long SourceThrottleTimeInMilliseconds { get; internal set; }
+
+		[DataMember(Name = "target_throttle_time_in_millis")]
+		public long TargetThrottleTimeInMilliseconds { get; internal set; }
+
+		[DataMember(Name = "total_time_in_millis")]
 		public long TotalTimeInMilliseconds { get; internal set; }
 	}
 }

src/Nest/Indices/Monitoring/IndicesRecovery/RecoveryVerifyIndex.cs

@@ -0,0 +1,13 @@
+using System.Runtime.Serialization;
+
+namespace Nest
+{
+	public class RecoveryVerifyIndex
+	{
+		[DataMember(Name ="check_index_time_in_millis")]
+		public long CheckIndexTimeInMilliseconds { get; internal set; }
+
+		[DataMember(Name ="total_time_in_millis")]
+		public long TotalTimeInMilliseconds { get; internal set; }
+	}
+}

src/Nest/Indices/Monitoring/IndicesRecovery/ShardRecovery.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Runtime.Serialization;
+using Elasticsearch.Net.Utf8Json;
 
 namespace Nest
 {
@@ -20,13 +21,17 @@ public class ShardRecovery
 		[DataMember(Name ="stage")]
 		public string Stage { get; internal set; }
 
-		[DataMember(Name ="start")]
+		[Obsolete("Deprecated. Will be removed in 8.0")]
 		public RecoveryStartStatus Start { get; internal set; }
 
-		[DataMember(Name ="start_time")]
+		// TODO Rename property in 8.0
+		[JsonFormatter(typeof(NullableDateTimeEpochMillisecondsFormatter))]
+		[DataMember(Name ="start_time_in_millis")]
 		public DateTime? StartTime { get; internal set; }
 
-		[DataMember(Name ="stop_time")]
+		// TODO Rename property in 8.0
+		[JsonFormatter(typeof(NullableDateTimeEpochMillisecondsFormatter))]
+		[DataMember(Name ="stop_time_in_millis")]
 		public DateTime? StopTime { get; internal set; }
 
 		[DataMember(Name ="target")]
@@ -40,5 +45,8 @@ public class ShardRecovery
 
 		[DataMember(Name ="type")]
 		public string Type { get; internal set; }
+
+		[DataMember(Name ="verify_index")]
+		public RecoveryVerifyIndex VerifyIndex { get; internal set; }
 	}
 }