More minor performance improvements.

backend/src/Squidex.Domain.Apps.Entities/Contents/Text/Extensions.cs

@@ -15,7 +15,8 @@ namespace Squidex.Domain.Apps.Entities.Contents.Text
 {
     public static class Extensions
     {
-        private static readonly ObjectPool<StringBuilder> Pool = new DefaultObjectPool<StringBuilder>(new StringBuilderPooledObjectPolicy());
+        private static readonly ObjectPool<StringBuilder> StringBuilderPool =
+            new DefaultObjectPool<StringBuilder>(new StringBuilderPooledObjectPolicy());
 
         public static Dictionary<string, string> ToTexts(this NamedContentData data)
         {
@@ -24,23 +25,30 @@ namespace Squidex.Domain.Apps.Entities.Contents.Text
             if (data != null)
             {
                 var languages = new Dictionary<string, StringBuilder>();
-
-                foreach (var value in data.Values)
+                try
                 {
-                    if (value != null)
+                    foreach (var value in data.Values)
                     {
-                        foreach (var (key, jsonValue) in value)
+                        if (value != null)
                         {
-                            AppendJsonText(languages, key, jsonValue);
+                            foreach (var (key, jsonValue) in value)
+                            {
+                                AppendJsonText(languages, key, jsonValue);
+                            }
                         }
                     }
-                }
 
-                foreach (var (key, stringBuilder) in languages)
+                    foreach (var (key, sb) in languages)
+                    {
+                        result[key] = sb.ToString();
+                    }
+                }
+                finally
                 {
-                    result[key] = stringBuilder.ToString();
-
-                    Pool.Return(stringBuilder);
+                    foreach (var (_, sb) in languages)
+                    {
+                        StringBuilderPool.Return(sb);
+                    }
                 }
             }
 
@@ -73,19 +81,19 @@ namespace Squidex.Domain.Apps.Entities.Contents.Text
         {
             if (!string.IsNullOrWhiteSpace(text))
             {
-                if (!languages.TryGetValue(language, out var stringBuilder))
+                if (!languages.TryGetValue(language, out var sb))
                 {
-                    stringBuilder = Pool.Get();
+                    sb = StringBuilderPool.Get();
 
-                    languages[language] = stringBuilder;
+                    languages[language] = sb;
                 }
 
-                if (stringBuilder.Length > 0)
+                if (sb.Length > 0)
                 {
-                    stringBuilder.Append(" ");
+                    sb.Append(" ");
                 }
 
-                stringBuilder.Append(text);
+                sb.Append(text);
             }
         }
     }

backend/src/Squidex.Infrastructure.Azure/EventSourcing/StreamPosition.cs

@@ -6,11 +6,15 @@
 // ==========================================================================
 
 using System.Text;
+using Microsoft.Extensions.ObjectPool;
 
 namespace Squidex.Infrastructure.EventSourcing
 {
     internal sealed class StreamPosition
     {
+        private static readonly ObjectPool<StringBuilder> StringBuilderPool =
+            new DefaultObjectPool<StringBuilder>(new StringBuilderPooledObjectPolicy());
+
         public long Timestamp { get; }
 
         public long CommitOffset { get; }
@@ -32,15 +36,21 @@ namespace Squidex.Infrastructure.EventSourcing
 
         public static implicit operator string(StreamPosition position)
         {
-            var sb = new StringBuilder(20);
-
-            sb.Append(position.Timestamp);
-            sb.Append("-");
-            sb.Append(position.CommitOffset);
-            sb.Append("-");
-            sb.Append(position.CommitSize);
+            var sb = StringBuilderPool.Get();
+            try
+            {
+                sb.Append(position.Timestamp);
+                sb.Append("-");
+                sb.Append(position.CommitOffset);
+                sb.Append("-");
+                sb.Append(position.CommitSize);
 
-            return sb.ToString();
+                return sb.ToString();
+            }
+            finally
+            {
+                StringBuilderPool.Return(sb);
+            }
         }
 
         public static implicit operator StreamPosition(string? position)
@@ -49,7 +59,10 @@ namespace Squidex.Infrastructure.EventSourcing
             {
                 var parts = position.Split('-');
 
-                return new StreamPosition(long.Parse(parts[0]), long.Parse(parts[1]), long.Parse(parts[2]));
+                return new StreamPosition(
+                    long.Parse(parts[0]),
+                    long.Parse(parts[1]),
+                    long.Parse(parts[2]));
             }
 
             return new StreamPosition(0, -1, -1);

backend/src/Squidex.Infrastructure.MongoDb/EventSourcing/StreamPosition.cs

@@ -6,12 +6,16 @@
 // ==========================================================================
 
 using System.Text;
+using Microsoft.Extensions.ObjectPool;
 using MongoDB.Bson;
 
 namespace Squidex.Infrastructure.EventSourcing
 {
     internal sealed class StreamPosition
     {
+        private static readonly ObjectPool<StringBuilder> StringBuilderPool =
+            new DefaultObjectPool<StringBuilder>(new StringBuilderPooledObjectPolicy());
+
         private static readonly BsonTimestamp EmptyTimestamp = new BsonTimestamp(946681200, 0);
 
         public BsonTimestamp Timestamp { get; }
@@ -35,17 +39,23 @@ namespace Squidex.Infrastructure.EventSourcing
 
         public static implicit operator string(StreamPosition position)
         {
-            var sb = new StringBuilder(20);
-
-            sb.Append(position.Timestamp.Timestamp);
-            sb.Append("-");
-            sb.Append(position.Timestamp.Increment);
-            sb.Append("-");
-            sb.Append(position.CommitOffset);
-            sb.Append("-");
-            sb.Append(position.CommitSize);
+            var sb = StringBuilderPool.Get();
+            try
+            {
+                sb.Append(position.Timestamp.Timestamp);
+                sb.Append("-");
+                sb.Append(position.Timestamp.Increment);
+                sb.Append("-");
+                sb.Append(position.CommitOffset);
+                sb.Append("-");
+                sb.Append(position.CommitSize);
 
-            return sb.ToString();
+                return sb.ToString();
+            }
+            finally
+            {
+                StringBuilderPool.Return(sb);
+            }
         }
 
         public static implicit operator StreamPosition(string? position)

backend/src/Squidex.Infrastructure/Email/SmtpEmailSender.cs

@@ -18,7 +18,7 @@ namespace Squidex.Infrastructure.Email
     public sealed class SmtpEmailSender : IEmailSender
     {
         private readonly SmptOptions options;
-        private readonly ObjectPool<SmtpClient> pool;
+        private readonly ObjectPool<SmtpClient> clientPool;
 
         internal sealed class SmtpClientPolicy : PooledObjectPolicy<SmtpClient>
         {
@@ -53,19 +53,19 @@ namespace Squidex.Infrastructure.Email
 
             this.options = options.Value;
 
-            pool = new DefaultObjectPoolProvider().Create(new SmtpClientPolicy(options.Value));
+            clientPool = new DefaultObjectPoolProvider().Create(new SmtpClientPolicy(options.Value));
         }
 
         public async Task SendAsync(string recipient, string subject, string body)
         {
-            var smtpClient = pool.Get();
+            var smtpClient = clientPool.Get();
             try
             {
                 await smtpClient.SendMailAsync(options.Sender, recipient, subject, body);
             }
             finally
             {
-                pool.Return(smtpClient);
+                clientPool.Return(smtpClient);
             }
         }
     }

backend/src/Squidex.Infrastructure/Log/JsonLogWriterFactory.cs

@@ -12,7 +12,7 @@ namespace Squidex.Infrastructure.Log
 {
     public sealed class JsonLogWriterFactory : IObjectWriterFactory
     {
-        private readonly ObjectPool<JsonLogWriter> pool;
+        private readonly ObjectPool<JsonLogWriter> writerPool;
 
         internal sealed class JsonLogWriterPolicy : PooledObjectPolicy<JsonLogWriter>
         {
@@ -47,7 +47,7 @@ namespace Squidex.Infrastructure.Log
 
         public JsonLogWriterFactory(bool indended = false, bool formatLine = false)
         {
-            pool = new DefaultObjectPoolProvider().Create(new JsonLogWriterPolicy(indended, formatLine));
+            writerPool = new DefaultObjectPoolProvider().Create(new JsonLogWriterPolicy(indended, formatLine));
         }
 
         public static JsonLogWriterFactory Default()
@@ -62,12 +62,12 @@ namespace Squidex.Infrastructure.Log
 
         public IObjectWriter Create()
         {
-            return pool.Get();
+            return writerPool.Get();
         }
 
         public void Release(IObjectWriter writer)
         {
-            pool.Return((JsonLogWriter)writer);
+            writerPool.Return((JsonLogWriter)writer);
         }
     }
 }

backend/tools/TestSuite/TestSuite.ApiTests/GraphQLTests.cs

@@ -93,7 +93,7 @@ namespace TestSuite.ApiTests
                                 data: flatData {
                                     name
                                     cities {
-                                        data:flatData {
+                                        data: flatData {
                                             name
                                         }
                                     }