More optimizations.

src/Squidex.Infrastructure.MongoDb/MongoDb/BsonJsonReader.cs

@@ -37,16 +37,6 @@ namespace Squidex.Infrastructure.MongoDb
             {
                 SetToken(NewtonsoftJsonToken.PropertyName, bsonReader.ReadName().UnescapeBson());
             }
-            else if (bsonReader.State == BsonReaderState.EndOfDocument)
-            {
-                SetToken(NewtonsoftJsonToken.EndObject);
-                bsonReader.ReadEndDocument();
-            }
-            else if (bsonReader.State == BsonReaderState.EndOfArray)
-            {
-                SetToken(NewtonsoftJsonToken.EndArray);
-                bsonReader.ReadEndArray();
-            }
             else if (bsonReader.State == BsonReaderState.Value)
             {
                 switch (bsonReader.CurrentBsonType)
@@ -95,6 +85,16 @@ namespace Squidex.Infrastructure.MongoDb
                         throw new NotSupportedException();
                 }
             }
+            else if (bsonReader.State == BsonReaderState.EndOfDocument)
+            {
+                SetToken(NewtonsoftJsonToken.EndObject);
+                bsonReader.ReadEndDocument();
+            }
+            else if (bsonReader.State == BsonReaderState.EndOfArray)
+            {
+                SetToken(NewtonsoftJsonToken.EndArray);
+                bsonReader.ReadEndArray();
+            }
 
             if (bsonReader.State == BsonReaderState.Initial)
             {

src/Squidex.Infrastructure.MongoDb/MongoDb/MongoExtensions.cs

@@ -101,10 +101,7 @@ namespace Squidex.Infrastructure.MongoDb
             {
                 var update = updater(Builders<T>.Update.Set(x => x.Version, newVersion));
 
-                await collection.UpdateOneAsync(x => x.Id.Equals(key) && x.Version == oldVersion,
-                    update
-                        .Set(x => x.Version, newVersion),
-                    Upsert);
+                await collection.UpdateOneAsync(x => x.Id.Equals(key) && x.Version == oldVersion, update, Upsert);
             }
             catch (MongoWriteException ex)
             {

src/Squidex.Infrastructure/Json/Newtonsoft/ConverterContractResolver.cs

@@ -6,6 +6,7 @@
 // ==========================================================================
 
 using System;
+using System.Collections.Generic;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Serialization;
 
@@ -14,10 +15,23 @@ namespace Squidex.Infrastructure.Json.Newtonsoft
     public sealed class ConverterContractResolver : CamelCasePropertyNamesContractResolver
     {
         private readonly JsonConverter[] converters;
+        private readonly object lockObject = new object();
+        private Dictionary<Type, JsonConverter> converterCache = new Dictionary<Type, JsonConverter>();
 
         public ConverterContractResolver(params JsonConverter[] converters)
         {
             this.converters = converters;
+
+            foreach (var converter in converters)
+            {
+                if (converter is ISupportedTypes supportedTypes)
+                {
+                    foreach (var type in supportedTypes.SupportedTypes)
+                    {
+                        converterCache[type] = converter;
+                    }
+                }
+            }
         }
 
         protected override JsonDictionaryContract CreateDictionaryContract(Type objectType)
@@ -38,15 +52,32 @@ namespace Squidex.Infrastructure.Json.Newtonsoft
                 return result;
             }
 
+            var cache = converterCache;
+
+            if (cache == null || !cache.TryGetValue(objectType, out result))
+            {
                 foreach (var converter in converters)
                 {
                     if (converter.CanConvert(objectType))
                     {
-                    return converter;
+                        result = converter;
+                    }
+                }
+
+                lock (lockObject)
+                {
+                    cache = converterCache;
+
+                    var updatedCache = (cache != null)
+                        ? new Dictionary<Type, JsonConverter>(cache)
+                        : new Dictionary<Type, JsonConverter>();
+                    updatedCache[objectType] = result;
+
+                    converterCache = updatedCache;
                 }
             }
 
-            return null;
+            return result;
         }
     }
 }

src/Squidex.Infrastructure/Json/Newtonsoft/EnvelopeHeadersConverter.cs

@@ -6,6 +6,7 @@
 // ==========================================================================
 
 using System;
+using System.Collections.Generic;
 using Newtonsoft.Json;
 using Squidex.Infrastructure.EventSourcing;
 using Squidex.Infrastructure.Json.Objects;
@@ -14,6 +15,11 @@ namespace Squidex.Infrastructure.Json.Newtonsoft
 {
     public sealed class EnvelopeHeadersConverter : JsonValueConverter
     {
+        public override IEnumerable<Type> SupportedTypes
+        {
+            get { yield return typeof(EnvelopeHeaders); }
+        }
+
         public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
         {
             var result = base.ReadJson(reader, objectType, existingValue, serializer);

src/Squidex.Infrastructure/Json/Newtonsoft/ISupportedTypes.cs

@@ -0,0 +1,17 @@
+// ==========================================================================
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex UG (haftungsbeschraenkt)
+//  All rights reserved. Licensed under the MIT license.
+// ==========================================================================
+
+using System;
+using System.Collections.Generic;
+
+namespace Squidex.Infrastructure.Json.Newtonsoft
+{
+    public interface ISupportedTypes
+    {
+        IEnumerable<Type> SupportedTypes { get; }
+    }
+}

src/Squidex.Infrastructure/Json/Newtonsoft/InstantConverter.cs

@@ -6,6 +6,7 @@
 // ==========================================================================
 
 using System;
+using System.Collections.Generic;
 using Newtonsoft.Json;
 using NodaTime;
 using NodaTime.Text;
@@ -14,6 +15,15 @@ namespace Squidex.Infrastructure.Json.Newtonsoft
 {
     public sealed class InstantConverter : JsonConverter
     {
+        public IEnumerable<Type> SupportedTypes
+        {
+            get
+            {
+                yield return typeof(Instant);
+                yield return typeof(Instant?);
+            }
+        }
+
         public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
         {
             if (value != null)

src/Squidex.Infrastructure/Json/Newtonsoft/JsonClassConverter.cs

@@ -6,12 +6,18 @@
 // ==========================================================================
 
 using System;
+using System.Collections.Generic;
 using Newtonsoft.Json;
 
 namespace Squidex.Infrastructure.Json.Newtonsoft
 {
-    public abstract class JsonClassConverter<T> : JsonConverter where T : class
+    public abstract class JsonClassConverter<T> : JsonConverter, ISupportedTypes where T : class
     {
+        public IEnumerable<Type> SupportedTypes
+        {
+            get { yield return typeof(T); }
+        }
+
         public sealed override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
         {
             if (reader.TokenType == JsonToken.Null)
@@ -22,6 +28,8 @@ namespace Squidex.Infrastructure.Json.Newtonsoft
             return ReadValue(reader, objectType, serializer);
         }
 
+        protected abstract T ReadValue(JsonReader reader, Type objectType, JsonSerializer serializer);
+
         public sealed override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
         {
             if (value == null)
@@ -33,13 +41,11 @@ namespace Squidex.Infrastructure.Json.Newtonsoft
             WriteValue(writer, (T)value, serializer);
         }
 
+        protected abstract void WriteValue(JsonWriter writer, T value, JsonSerializer serializer);
+
         public override bool CanConvert(Type objectType)
         {
             return objectType == typeof(T);
         }
-
-        protected abstract void WriteValue(JsonWriter writer, T value, JsonSerializer serializer);
-
-        protected abstract T ReadValue(JsonReader reader, Type objectType, JsonSerializer serializer);
     }
 }

src/Squidex.Infrastructure/Json/Newtonsoft/JsonValueConverter.cs

@@ -6,6 +6,7 @@
 // ==========================================================================
 
 using System;
+using System.Collections.Generic;
 using System.Globalization;
 using Newtonsoft.Json;
 using Squidex.Infrastructure.Json.Objects;
@@ -14,8 +15,24 @@ using Squidex.Infrastructure.Json.Objects;
 
 namespace Squidex.Infrastructure.Json.Newtonsoft
 {
-    public class JsonValueConverter : JsonConverter
+    public class JsonValueConverter : JsonConverter, ISupportedTypes
     {
+        private readonly HashSet<Type> supportedTypes = new HashSet<Type>
+        {
+            typeof(IJsonValue),
+            typeof(JsonArray),
+            typeof(JsonBoolean),
+            typeof(JsonNull),
+            typeof(JsonNumber),
+            typeof(JsonObject),
+            typeof(JsonString)
+        };
+
+        public virtual IEnumerable<Type> SupportedTypes
+        {
+            get { return supportedTypes; }
+        }
+
         public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
         {
             return ReadJson(reader);
@@ -161,7 +178,7 @@ namespace Squidex.Infrastructure.Json.Newtonsoft
 
         public override bool CanConvert(Type objectType)
         {
-            return typeof(IJsonValue).IsAssignableFrom(objectType);
+            return supportedTypes.Contains(objectType);
         }
     }
 }

src/Squidex.Infrastructure/Log/JsonLogWriter.cs

@@ -96,7 +96,7 @@ namespace Squidex.Infrastructure.Log
 
         IObjectWriter IObjectWriter.WriteProperty(string property, string value)
         {
-            jsonWriter.WritePropertyName(property.ToCamelCase());
+            jsonWriter.WritePropertyName(Format(property));
             jsonWriter.WriteValue(value);
 
             return this;
@@ -104,7 +104,7 @@ namespace Squidex.Infrastructure.Log
 
         IObjectWriter IObjectWriter.WriteProperty(string property, double value)
         {
-            jsonWriter.WritePropertyName(property.ToCamelCase());
+            jsonWriter.WritePropertyName(Format(property));
             jsonWriter.WriteValue(value);
 
             return this;
@@ -112,7 +112,7 @@ namespace Squidex.Infrastructure.Log
 
         IObjectWriter IObjectWriter.WriteProperty(string property, long value)
         {
-            jsonWriter.WritePropertyName(property.ToCamelCase());
+            jsonWriter.WritePropertyName(Format(property));
             jsonWriter.WriteValue(value);
 
             return this;
@@ -120,7 +120,7 @@ namespace Squidex.Infrastructure.Log
 
         IObjectWriter IObjectWriter.WriteProperty(string property, bool value)
         {
-            jsonWriter.WritePropertyName(property.ToCamelCase());
+            jsonWriter.WritePropertyName(Format(property));
             jsonWriter.WriteValue(value);
 
             return this;
@@ -128,7 +128,7 @@ namespace Squidex.Infrastructure.Log
 
         IObjectWriter IObjectWriter.WriteProperty(string property, DateTime value)
         {
-            jsonWriter.WritePropertyName(property.ToCamelCase());
+            jsonWriter.WritePropertyName(Format(property));
             jsonWriter.WriteValue(value.ToString("o", CultureInfo.InvariantCulture));
 
             return this;
@@ -136,7 +136,7 @@ namespace Squidex.Infrastructure.Log
 
         IObjectWriter IObjectWriter.WriteProperty(string property, DateTimeOffset value)
         {
-            jsonWriter.WritePropertyName(property.ToCamelCase());
+            jsonWriter.WritePropertyName(Format(property));
             jsonWriter.WriteValue(value.ToString("o", CultureInfo.InvariantCulture));
 
             return this;
@@ -144,7 +144,7 @@ namespace Squidex.Infrastructure.Log
 
         IObjectWriter IObjectWriter.WriteProperty(string property, TimeSpan value)
         {
-            jsonWriter.WritePropertyName(property.ToCamelCase());
+            jsonWriter.WritePropertyName(Format(property));
             jsonWriter.WriteValue(value);
 
             return this;
@@ -152,7 +152,7 @@ namespace Squidex.Infrastructure.Log
 
         IObjectWriter IObjectWriter.WriteObject(string property, Action<IObjectWriter> objectWriter)
         {
-            jsonWriter.WritePropertyName(property);
+            jsonWriter.WritePropertyName(Format(property));
             jsonWriter.WriteStartObject();
 
             objectWriter?.Invoke(this);
@@ -164,7 +164,7 @@ namespace Squidex.Infrastructure.Log
 
         IObjectWriter IObjectWriter.WriteArray(string property, Action<IArrayWriter> arrayWriter)
         {
-            jsonWriter.WritePropertyName(property.ToCamelCase());
+            jsonWriter.WritePropertyName(Format(property));
             jsonWriter.WriteStartArray();
 
             arrayWriter?.Invoke(this);
@@ -185,6 +185,16 @@ namespace Squidex.Infrastructure.Log
             return this;
         }
 
+        private static string Format(string property)
+        {
+            if (ReferenceEquals(string.IsInterned(property), property))
+            {
+                return property;
+            }
+
+            return property.ToCamelCase();
+        }
+
         public override string ToString()
         {
             jsonWriter.WriteEndObject();

src/Squidex/Config/Domain/SerializationServices.cs

@@ -9,8 +9,6 @@ using Microsoft.Extensions.DependencyInjection;
 using Migrate_01;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Converters;
-using NodaTime;
-using NodaTime.Serialization.JsonNet;
 using Squidex.Domain.Apps.Core;
 using Squidex.Domain.Apps.Core.Apps.Json;
 using Squidex.Domain.Apps.Core.Rules.Json;
@@ -68,8 +66,6 @@ namespace Squidex.Config.Domain
             settings.DateParseHandling = DateParseHandling.None;
 
             settings.TypeNameHandling = typeNameHandling;
-
-            settings.ConfigureForNodaTime(DateTimeZoneProviders.Tzdb);
         }
 
         static SerializationServices()

src/Squidex/Squidex.csproj

@@ -80,7 +80,6 @@
     <PackageReference Include="Microsoft.Orleans.OrleansRuntime" Version="2.1.2" />
     <PackageReference Include="MongoDB.Driver" Version="2.7.2" />
     <PackageReference Include="NJsonSchema" Version="9.12.2" />
-    <PackageReference Include="NodaTime.Serialization.JsonNet" Version="2.0.0" />
     <PackageReference Include="NSwag.AspNetCore" Version="11.20.1" />
     <PackageReference Include="OpenCover" Version="4.6.519" />
     <PackageReference Include="Orleans.Providers.MongoDB" Version="2.0.1" />