Reintroduce old HOCON, lay groundwork for gradual introduction of HOCON stand-alone (#4299)

* added original HOCON back to Akka.NET v1.4

* Extracted IHoconConfig interface as a proof of concept

* API approvals

* Revert "Extracted IHoconConfig interface as a proof of concept"

This reverts commit d1561be.

* disabled HOCON specs

* added warning about HOCON spec

* added API approval

* make Logs_config_on_start spec cross-platform

* fixed bug with Akka.Configuration.Config serialization binding

* fixed issues with ActorMaterializer settings

Author: Aaronontheweb

docs/articles/hocon/index.md

@@ -8,7 +8,7 @@
 using System;
 using System.Collections.Generic;
 using Akka.Benchmarks.Configurations;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using BenchmarkDotNet.Attributes;
 
 namespace Akka.Benchmarks.Hocon

src/benchmark/Akka.Benchmarks/Hocon/HoconBenchmarks.cs

@@ -10,7 +10,7 @@
 using System.Linq;
 using System.Threading.Tasks;
 using Akka.Actor;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Pattern;
 using ConfigurationFactory = Akka.Configuration.ConfigurationFactory;
 

src/benchmark/PersistenceBenchmark/Program.cs

@@ -14,7 +14,7 @@
 using System.Threading;
 using System.Threading.Tasks;
 using Akka.Actor;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Util.Internal;
 
 namespace PingPong

src/benchmark/PingPong/Program.cs

@@ -14,7 +14,7 @@
 using System.Threading;
 using System.Threading.Tasks;
 using Akka.Actor;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Util.Internal;
 
 namespace RemotePingPong

src/benchmark/RemotePingPong/Program.cs

@@ -6,7 +6,7 @@
 //-----------------------------------------------------------------------
 
 using Akka.Actor;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using System;
 using System.Runtime;
 

src/benchmark/SpawnBenchmark/Program.cs

@@ -14,7 +14,7 @@
 using Akka.Configuration;
 using Akka.Remote.TestKit;
 using FluentAssertions;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using ConfigurationFactory = Akka.Configuration.ConfigurationFactory;
 
 namespace Akka.Cluster.Metrics.Tests.MultiNode

src/contrib/cluster/Akka.Cluster.Metrics.Tests.MultiNode/ClusterMetricsExtensionSpec.cs

@@ -21,7 +21,7 @@
 using Akka.Remote.TestKit;
 using Akka.Routing;
 using FluentAssertions;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Address = Akka.Actor.Address;
 using ConfigurationFactory = Akka.Configuration.ConfigurationFactory;
 

src/contrib/cluster/Akka.Cluster.Metrics.Tests.MultiNode/ClustetMetricsRoutingSpec.cs

@@ -13,7 +13,7 @@
 using Akka.Configuration;
 using Akka.Remote.TestKit;
 using FluentAssertions;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using ConfigurationFactory = Akka.Configuration.ConfigurationFactory;
 
 namespace Akka.Cluster.Metrics.Tests.MultiNode

src/contrib/cluster/Akka.Cluster.Metrics.Tests.MultiNode/Sample/StatsSampleSpec.cs

@@ -15,7 +15,7 @@
 using Xunit;
 using FluentAssertions;
 using FsCheck;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using ConfigurationFactory = Akka.Configuration.ConfigurationFactory;
 
 namespace Akka.Cluster.Metrics.Tests

src/contrib/cluster/Akka.Cluster.Metrics.Tests/ClusterMetricsSettingsSpec.cs

@@ -16,7 +16,7 @@
 using Akka.TestKit;
 using Akka.Util.Internal;
 using FluentAssertions;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Xunit;
 using ConfigurationFactory = Akka.Configuration.ConfigurationFactory;
 

src/contrib/cluster/Akka.Cluster.Metrics.Tests/WeightedRouteesSpec.cs

@@ -12,8 +12,8 @@
 using Akka.Cluster.Metrics.Events;
 using Akka.Cluster.Metrics.Helpers;
 using Akka.Cluster.Metrics.Serialization;
+using Akka.Configuration;
 using Akka.Util;
-using Hocon;
 using ConfigurationFactory = Akka.Configuration.ConfigurationFactory;
 
 namespace Akka.Cluster.Metrics

src/contrib/cluster/Akka.Cluster.Metrics/ClusterMetrics.cs

@@ -8,7 +8,7 @@
 using System;
 using Akka.Actor;
 using Akka.Configuration;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 
 namespace Akka.Cluster.Metrics
 {

src/contrib/cluster/Akka.Cluster.Metrics/ClusterMetricsStrategy.cs

@@ -6,7 +6,7 @@
 //-----------------------------------------------------------------------
 
 using System;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 
 namespace Akka.Cluster.Metrics.Configuration
 {

src/contrib/cluster/Akka.Cluster.Metrics/Configuration/ClusterMetricsSettings.cs

@@ -12,7 +12,7 @@
 using Akka.Cluster.Metrics.Helpers;
 using Akka.Event;
 using Akka.Util;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 
 namespace Akka.Cluster.Metrics
 {

src/contrib/cluster/Akka.Cluster.Metrics/MetricsCollectorBuilder.cs

@@ -18,7 +18,7 @@
 using Akka.Routing;
 using Akka.Util;
 using Akka.Util.Extensions;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 
 namespace Akka.Cluster.Metrics
 {

src/contrib/cluster/Akka.Cluster.Metrics/Routing/ClusterMetricsRouting.cs

@@ -12,7 +12,7 @@
 using Akka.Cluster.Metrics.Serialization;
 using Akka.Configuration;
 using Akka.Util;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 
 namespace Akka.Cluster.Metrics
 {

src/contrib/cluster/Akka.Cluster.Metrics/Routing/MetricSelectors.cs

@@ -8,7 +8,7 @@
 using System;
 using Akka.Actor;
 using Akka.Cluster.TestKit;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Remote.TestKit;
 using System.Collections.Immutable;
 using System.Threading.Tasks;

src/contrib/cluster/Akka.Cluster.Sharding.Tests.MultiNode/ClusterShardingCustomShardAllocationSpec.cs

@@ -11,7 +11,7 @@
 using System.Linq;
 using Akka.Actor;
 using Akka.Cluster.TestKit;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Remote.TestKit;
 using Akka.Remote.Transport;
 using Akka.Util;

src/contrib/cluster/Akka.Cluster.Sharding.Tests.MultiNode/ClusterShardingFailureSpec.cs

@@ -9,7 +9,7 @@
 using System.Linq;
 using Akka.Actor;
 using Akka.Cluster.TestKit;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Remote.TestKit;
 using System.Collections.Immutable;
 using Akka.Util;

src/contrib/cluster/Akka.Cluster.Sharding.Tests.MultiNode/ClusterShardingGetStateSpec.cs

@@ -9,7 +9,7 @@
 using System.Linq;
 using Akka.Actor;
 using Akka.Cluster.TestKit;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Remote.TestKit;
 using Akka.Util;
 using FluentAssertions;

src/contrib/cluster/Akka.Cluster.Sharding.Tests.MultiNode/ClusterShardingGetStatsSpec.cs

@@ -10,7 +10,7 @@
 using System.Linq;
 using Akka.Actor;
 using Akka.Cluster.TestKit;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Remote.TestKit;
 using System.Collections.Immutable;
 using System.IO;

src/contrib/cluster/Akka.Cluster.Sharding.Tests.MultiNode/ClusterShardingGracefulShutdownSpec.cs

@@ -10,7 +10,7 @@
 using System.Linq;
 using Akka.Actor;
 using Akka.Cluster.TestKit;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Remote.TestKit;
 using System.Collections.Immutable;
 using System.IO;

src/contrib/cluster/Akka.Cluster.Sharding.Tests.MultiNode/ClusterShardingLeavingSpec.cs

@@ -11,7 +11,7 @@
 using System.Linq;
 using Akka.Actor;
 using Akka.Cluster.TestKit;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Remote.TestKit;
 using Akka.Util;
 using FluentAssertions;

src/contrib/cluster/Akka.Cluster.Sharding.Tests.MultiNode/ClusterShardingMinMembersSpec.cs

@@ -11,7 +11,7 @@
 using System.Linq;
 using Akka.Actor;
 using Akka.Cluster.TestKit;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Remote.TestKit;
 using Akka.Util;
 using FluentAssertions;

src/contrib/cluster/Akka.Cluster.Sharding.Tests.MultiNode/ClusterShardingRememberEntitiesNewExtractorSpec.cs

@@ -11,7 +11,7 @@
 using System.Threading;
 using Akka.Actor;
 using Akka.Cluster.TestKit;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Remote.TestKit;
 using Akka.Util;
 using FluentAssertions;

src/contrib/cluster/Akka.Cluster.Sharding.Tests.MultiNode/ClusterShardingRememberEntitiesSpec.cs

@@ -9,7 +9,7 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Threading;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Persistence;
 using Akka.Remote.TestKit;
 using Akka.Actor;

src/contrib/cluster/Akka.Cluster.Sharding.Tests.MultiNode/ClusterShardingSpec.cs

@@ -6,7 +6,7 @@
 //-----------------------------------------------------------------------
 
 using System;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Xunit;
 
 namespace Akka.Cluster.Sharding.Tests

src/contrib/cluster/Akka.Cluster.Sharding.Tests/ClusterShardingConfigSpec.cs

@@ -8,7 +8,7 @@
 using System;
 using Akka.Actor;
 using Akka.Cluster.Tools.Singleton;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Util;
 using FluentAssertions;
 using Xunit;

src/contrib/cluster/Akka.Cluster.Sharding.Tests/ClusterShardingInternalsSpec.cs

@@ -10,7 +10,7 @@
 using Akka.Actor;
 using Akka.Cluster.Sharding.Serialization;
 using Akka.Cluster.Tools.Singleton;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Serialization;
 using Akka.TestKit;
 using Akka.Util.Internal;

src/contrib/cluster/Akka.Cluster.Sharding.Tests/ClusterShardingMessageSerializerSpec.cs

@@ -7,7 +7,7 @@
 
 using System;
 using Akka.Cluster.Tools.Singleton;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.TestKit;
 using Xunit;
 

src/contrib/cluster/Akka.Cluster.Sharding.Tests/ClusterShardingSettingsSpec.cs

@@ -10,7 +10,7 @@
 using System.Threading.Tasks;
 using Akka.Actor;
 using Akka.Cluster.Tools.Singleton;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.TestKit;
 using Akka.Util;
 using FluentAssertions;

src/contrib/cluster/Akka.Cluster.Sharding.Tests/CoordinatedShutdownShardingSpec.cs

@@ -5,7 +5,7 @@
 // </copyright>
 //-----------------------------------------------------------------------
 
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.DistributedData;
 using Akka.DistributedData.Internal;
 using Akka.DistributedData.Serialization;

src/contrib/cluster/Akka.Cluster.Sharding.Tests/DDataClusterShardingConfigSpec.cs

@@ -7,7 +7,7 @@
 
 using System;
 using Akka.Cluster.Tools.Singleton;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.TestKit.TestActors;
 using Akka.Util;
 using FluentAssertions;

src/contrib/cluster/Akka.Cluster.Sharding.Tests/GetShardTypeNamesSpec.cs

@@ -12,7 +12,7 @@
 using System.Threading.Tasks;
 using Akka.Actor;
 using Akka.Cluster.Tools.Singleton;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.TestKit;
 using Akka.Util;
 using FluentAssertions;

src/contrib/cluster/Akka.Cluster.Sharding.Tests/InactiveEntityPassivationSpec.cs

@@ -10,7 +10,7 @@
 using System.Threading.Tasks;
 using Akka.Actor;
 using Akka.Cluster.Tools.Singleton;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.TestKit;
 using Akka.Util.Extensions;
 using FluentAssertions;

src/contrib/cluster/Akka.Cluster.Sharding.Tests/PersistentShardSpec.cs

@@ -8,7 +8,7 @@
 using System;
 using Akka.Actor;
 using Akka.Cluster.Tools.Singleton;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.TestKit.TestActors;
 using Akka.Util;
 using FluentAssertions;

src/contrib/cluster/Akka.Cluster.Sharding.Tests/ProxyShardingSpec.cs

@@ -8,7 +8,7 @@
 using System;
 using System.Globalization;
 using Akka.Actor;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Event;
 using Akka.Pattern;
 using Akka.Util;

src/contrib/cluster/Akka.Cluster.Sharding.Tests/SupervisionSpec.cs

@@ -14,7 +14,7 @@
 using System.Threading.Tasks;
 using Akka.Actor;
 using Akka.Cluster.Tools.Singleton;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Dispatch;
 using Akka.Event;
 using Akka.Pattern;

src/contrib/cluster/Akka.Cluster.Sharding/ClusterSharding.cs

@@ -8,7 +8,7 @@
 using System;
 using Akka.Actor;
 using Akka.Cluster.Tools.Singleton;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 
 namespace Akka.Cluster.Sharding
 {

src/contrib/cluster/Akka.Cluster.Sharding/ClusterShardingSettings.cs

@@ -15,7 +15,7 @@
 using Akka.Cluster.TestKit;
 using Akka.Cluster.Tools.Client;
 using Akka.Cluster.Tools.PublishSubscribe;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Remote.TestKit;
 using Akka.TestKit.TestActors;
 using FluentAssertions;

src/contrib/cluster/Akka.Cluster.Tools.Tests.MultiNode/ClusterClient/ClusterClientHandoverSpec.cs

@@ -16,7 +16,7 @@
 using Akka.Cluster.Tools.Client;
 using Akka.Cluster.Tools.PublishSubscribe;
 using Akka.Cluster.Tools.PublishSubscribe.Internal;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Remote.TestKit;
 using Akka.Remote.Transport;
 using Akka.Util.Internal;

src/contrib/cluster/Akka.Cluster.Tools.Tests.MultiNode/ClusterClient/ClusterClientSpec.cs

@@ -11,7 +11,7 @@
 using Akka.Cluster.TestKit;
 using Akka.Cluster.Tools.Client;
 using Akka.Cluster.Tools.PublishSubscribe;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Remote.TestKit;
 using FluentAssertions;
 

src/contrib/cluster/Akka.Cluster.Tools.Tests.MultiNode/ClusterClient/ClusterClientStartSpecConfig.cs

@@ -12,7 +12,7 @@
 using Akka.Cluster.Tools.Client;
 using Akka.Cluster.Tools.PublishSubscribe;
 using Akka.Cluster.Tools.PublishSubscribe.Internal;
-using Hocon; using Akka.Configuration;
+using Akka.Configuration;
 using Akka.Remote.TestKit;
 using FluentAssertions;