[Backport 7.6] Deserialize string bool and int repository setting values

src/Nest/Modules/SnapshotAndRestore/Repositories/AzureRepository.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Runtime.Serialization;
+using Elasticsearch.Net.Utf8Json;
 
 namespace Nest
 {
@@ -46,6 +47,7 @@ public interface IAzureRepositorySettings : IRepositorySettings
 		/// affect index files that are already compressed by default. Defaults to <c>false</c>.
 		/// </summary>
 		[DataMember(Name ="compress")]
+		[JsonFormatter(typeof(NullableStringBooleanFormatter))]
 		bool? Compress { get; set; }
 
 		/// <summary>

src/Nest/Modules/SnapshotAndRestore/Repositories/HdfsRepository.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Runtime.Serialization;
+using Elasticsearch.Net.Utf8Json;
 
 namespace Nest
 {
@@ -39,12 +40,14 @@ public interface IHdfsRepositorySettings : IRepositorySettings
 		/// affect index files that are already compressed by default. Defaults to <c>false</c>.
 		/// </summary>
 		[DataMember(Name ="compress")]
+		[JsonFormatter(typeof(NullableStringBooleanFormatter))]
 		bool? Compress { get; set; }
 
 		/// <summary>
 		/// Throttles the number of streams (per node) preforming snapshot operation. Defaults to 5
 		/// </summary>
 		[DataMember(Name ="concurrent_streams")]
+		[JsonFormatter(typeof(NullableStringIntFormatter))]
 		int? ConcurrentStreams { get; set; }
 
 		/// <summary>
@@ -63,6 +66,7 @@ public interface IHdfsRepositorySettings : IRepositorySettings
 		/// Whether to load the default Hadoop configuration (default) or not
 		/// </summary>
 		[DataMember(Name ="load_defaults")]
+		[JsonFormatter(typeof(NullableStringBooleanFormatter))]
 		bool? LoadDefaults { get; set; }
 
 		/// <summary>

src/Nest/Modules/SnapshotAndRestore/Repositories/ReadOnlyUrlRepository.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Runtime.Serialization;
+using Elasticsearch.Net.Utf8Json;
 
 namespace Nest
 {
@@ -28,6 +29,7 @@ public interface IReadOnlyUrlRepositorySettings : IRepositorySettings
 		/// Throttles the number of streams (per node) preforming snapshot operation. Defaults to 5
 		/// </summary>
 		[DataMember(Name ="concurrent_streams")]
+		[JsonFormatter(typeof(NullableStringIntFormatter))]
 		int? ConcurrentStreams { get; set; }
 
 		/// <summary>

src/Nest/Modules/SnapshotAndRestore/Repositories/S3Repository.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Runtime.Serialization;
+using Elasticsearch.Net.Utf8Json;
 
 namespace Nest
 {
@@ -77,13 +78,15 @@ public interface IS3RepositorySettings : IRepositorySettings
 		/// Defaults to false.
 		/// </summary>
 		[DataMember(Name ="compress")]
+		[JsonFormatter(typeof(NullableStringBooleanFormatter))]
 		bool? Compress { get; set; }
 
 		/// <summary>
 		/// When set to true files are encrypted on server side using AES256 algorithm.
 		/// Defaults to false.
 		/// </summary>
 		[DataMember(Name ="server_side_encryption")]
+		[JsonFormatter(typeof(NullableStringBooleanFormatter))]
 		bool? ServerSideEncryption { get; set; }
 
 		/// <summary>
@@ -99,6 +102,7 @@ public interface IS3RepositorySettings : IRepositorySettings
 		// be automatically determined by the AWS Java SDK used internally by Elasticsearch
 		/// </summary>
 		[DataMember(Name = "path_style_access")]
+		[JsonFormatter(typeof(NullableStringBooleanFormatter))]
 		bool? PathStyleAccess { get; set; }
 
 		/// <summary>
@@ -108,6 +112,7 @@ public interface IS3RepositorySettings : IRepositorySettings
 		/// encoding. Defaults to false.
 		/// </summary>
 		[DataMember(Name = "disable_chunked_encoding")]
+		[JsonFormatter(typeof(NullableStringBooleanFormatter))]
 		bool? DisableChunkedEncoding { get; set; }
 	}
 

tests/Tests.Reproduce/GithubIssue4467.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Text;
+using Elastic.Xunit.XunitPlumbing;
+using Elasticsearch.Net;
+using FluentAssertions;
+using Nest;
+
+namespace Tests.Reproduce
+{
+	public class GithubIssue4467
+	{
+		[U]
+		public void CanDeserializeRepositories()
+		{
+			var json = @"{
+			  ""test_repository"": {
+			    ""type"": ""azure"",
+			    ""settings"": {
+			      ""container"": ""test-backup-container"",
+			      ""client"": ""default"",
+			      ""base_path"": ""test-backups"",
+			      ""chunk_size"": ""64mb""
+			    }
+			  },
+			  ""repo_aligncare_v7"": {
+			    ""type"": ""azure"",
+			    ""settings"": {
+			      ""container"": ""aligncare-backup-container-02292020"",
+			      ""base_path"": ""aligncare-backups"",
+			      ""chunk_size"": ""64m"",
+			      ""compress"": ""true""
+			    }
+			  }
+			}";
+
+			var bytes = Encoding.UTF8.GetBytes(json);
+			var pool = new SingleNodeConnectionPool(new Uri("http://localhost:9200"));
+			var connectionSettings = new ConnectionSettings(pool, new InMemoryConnection(bytes));
+			var client = new ElasticClient(connectionSettings);
+
+			Func<GetRepositoryResponse> responseAction = () =>  client.Snapshot.GetRepository();
+			responseAction.Should().NotThrow();
+
+			var response = responseAction();
+			response.Repositories.Should().HaveCount(2);
+
+			var azureRepository = response.Azure("repo_aligncare_v7");
+			azureRepository.Should().NotBeNull();
+			azureRepository.Settings.Compress.Should().BeTrue();
+		}
+	}
+}