Fix SqlServer service injection bug

src/DotNetCore.CAP.SqlServer/CAP.SqlServerCapOptionsExtension.cs

@@ -2,10 +2,12 @@
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
 using System;
+using DotNetCore.CAP.Internal;
 using DotNetCore.CAP.Persistence;
 using DotNetCore.CAP.SqlServer;
 using DotNetCore.CAP.SqlServer.Diagnostics;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.DependencyInjection.Extensions;
 using Microsoft.Extensions.Options;
 
 // ReSharper disable once CheckNamespace
@@ -28,6 +30,7 @@ namespace DotNetCore.CAP
             services.AddSingleton<IDataStorage, SqlServerDataStorage>();
             services.AddSingleton<IStorageInitializer, SqlServerStorageInitializer>();
             services.AddTransient<CapTransactionBase, SqlServerCapTransaction>();
+            services.TryAddEnumerable(ServiceDescriptor.Singleton<IProcessingServer, DiagnosticRegister>());
 
             services.Configure(_configure);
             services.AddSingleton<IConfigureOptions<SqlServerOptions>, ConfigureSqlServerOptions>();

src/DotNetCore.CAP.SqlServer/Diagnostics/IProcessingServer.DiagnosticRegister.cs

+// Copyright (c) .NET Core Community. All rights reserved.
+// Licensed under the MIT License. See License.txt in the project root for license information.
+
+using System.Diagnostics;
+using DotNetCore.CAP.Internal;
+
+namespace DotNetCore.CAP.SqlServer.Diagnostics
+{
+    public class DiagnosticRegister : IProcessingServer
+    {
+        private readonly DiagnosticProcessorObserver _diagnosticProcessorObserver;
+
+        public DiagnosticRegister(DiagnosticProcessorObserver diagnosticProcessorObserver)
+        {
+            _diagnosticProcessorObserver = diagnosticProcessorObserver;
+        }
+
+        public void Dispose()
+        {
+
+        }
+
+        public void Pulse()
+        {
+            
+        }
+
+        public void Start()
+        {
+            DiagnosticListener.AllListeners.Subscribe(_diagnosticProcessorObserver);
+        }
+    }
+}

src/DotNetCore.CAP.SqlServer/IStorageInitializer.SqlServer.cs

 // Copyright (c) .NET Core Community. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-using System.Diagnostics;
 using System.Threading;
 using System.Threading.Tasks;
 using Dapper;
 using DotNetCore.CAP.Persistence;
-using DotNetCore.CAP.SqlServer.Diagnostics;
 using Microsoft.Data.SqlClient;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
@@ -15,17 +13,14 @@ namespace DotNetCore.CAP.SqlServer
 {
     public class SqlServerStorageInitializer : IStorageInitializer
     {
-        private readonly DiagnosticProcessorObserver _diagnosticProcessorObserver;
         private readonly ILogger _logger;
         private readonly IOptions<SqlServerOptions> _options;
 
         public SqlServerStorageInitializer(
             ILogger<SqlServerStorageInitializer> logger,
-            IOptions<SqlServerOptions> options,
-            DiagnosticProcessorObserver diagnosticProcessorObserver)
+            IOptions<SqlServerOptions> options)
         {
             _options = options;
-            _diagnosticProcessorObserver = diagnosticProcessorObserver;
             _logger = logger;
         }
 
@@ -50,11 +45,8 @@ namespace DotNetCore.CAP.SqlServer
             }
 
             _logger.LogDebug("Ensuring all create database tables script are applied.");
-
-            DiagnosticListener.AllListeners.Subscribe(_diagnosticProcessorObserver);
         }
 
-
         protected virtual string CreateDbTablesScript(string schema)
         {
             var batchSql =