v2.6.0 (#362)

* Code refactor

* update code format

* Add options package reference

* Rename need retry processor

* update unit tests

* Improve ICapPublisher to singleton.

* Support options pattern for MySqlOptions

* Support options pattern for PostgreSqlOptions

* Remove reference

* update namespace of SubscriberNotFoundException.cs

* update ut

* Support options pattern for CapOptions

* update version to 2.6.0

* Support options pattern for AzureServiceBusOptions

* Fix client listening bug

* update inmemory project to using  option pattern.

* Support options pattern for KafkaOptions.

* Support options pattern for MongoDbOptions.

* Fix options.

* Support options pattern for SqlServerOptions

* upgrade confluent kafka to 1.1.0

* Remove CastleCoreTest project, it is not need again

* Fix transaction dispose.

* Fix mock

* Fix mock

CAP.sln

 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 15
-VisualStudioVersion = 15.0.26730.15
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.29025.244
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{9B2AE124-6636-4DE9-83A3-70360DABD0C4}"
 EndProject
@@ -68,8 +68,6 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DotNetCore.CAP.InMemoryStor
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Sample.AzureServiceBus.InMemory", "samples\Sample.AzureServiceBus.InMemory\Sample.AzureServiceBus.InMemory.csproj", "{1E1E959C-3D0E-45C3-ABCA-DAAACE68AAB8}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DotNetCore.CAP.CastleCoreTest", "test\DotNetCore.CAP.CastleCoreTest\DotNetCore.CAP.CastleCoreTest.csproj", "{BA499B87-77A9-43A2-98A3-89ECF5034E26}"
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -144,10 +142,6 @@ Global
 		{1E1E959C-3D0E-45C3-ABCA-DAAACE68AAB8}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{1E1E959C-3D0E-45C3-ABCA-DAAACE68AAB8}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{1E1E959C-3D0E-45C3-ABCA-DAAACE68AAB8}.Release|Any CPU.Build.0 = Release|Any CPU
-		{BA499B87-77A9-43A2-98A3-89ECF5034E26}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{BA499B87-77A9-43A2-98A3-89ECF5034E26}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{BA499B87-77A9-43A2-98A3-89ECF5034E26}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{BA499B87-77A9-43A2-98A3-89ECF5034E26}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -171,7 +165,6 @@ Global
 		{63B2A464-FBEA-42FB-8EFA-98AFA39FC920} = {9B2AE124-6636-4DE9-83A3-70360DABD0C4}
 		{58B6E829-C6C8-457C-9DD0-C600650254DF} = {9B2AE124-6636-4DE9-83A3-70360DABD0C4}
 		{1E1E959C-3D0E-45C3-ABCA-DAAACE68AAB8} = {3A6B6931-A123-477A-9469-8B468B5385AF}
-		{BA499B87-77A9-43A2-98A3-89ECF5034E26} = {C09CDAB0-6DD4-46E9-B7F3-3EF2A4741EA0}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {2E70565D-94CF-40B4-BFE1-AC18D5F736AB}

CAP.sln.DotSettings

+<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=DB/@EntryIndexedValue">DB</s:String>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=Mongo/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=Postgre/@EntryIndexedValue">True</s:Boolean></wpf:ResourceDictionary>
\ No newline at end of file

build/version.props

 <Project>
 	<PropertyGroup>
 		<VersionMajor>2</VersionMajor>
-		<VersionMinor>5</VersionMinor>
-		<VersionPatch>2</VersionPatch>
+		<VersionMinor>6</VersionMinor>
+		<VersionPatch>0</VersionPatch>
 		<VersionQuality></VersionQuality>
 		<VersionPrefix>$(VersionMajor).$(VersionMinor).$(VersionPatch)</VersionPrefix>
 	</PropertyGroup>

src/DotNetCore.CAP.AzureServiceBus/AzureServiceBusConsumerClient.cs

@@ -10,11 +10,14 @@ using System.Threading.Tasks;
 using Microsoft.Azure.ServiceBus;
 using Microsoft.Azure.ServiceBus.Management;
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 
 namespace DotNetCore.CAP.AzureServiceBus
 {
     internal sealed class AzureServiceBusConsumerClient : IConsumerClient
     {
+        private readonly SemaphoreSlim _connectionLock = new SemaphoreSlim(initialCount: 1, maxCount: 1);
+
         private readonly ILogger _logger;
         private readonly string _subscriptionName;
         private readonly AzureServiceBusOptions _asbOptions;
@@ -26,13 +29,11 @@ namespace DotNetCore.CAP.AzureServiceBus
         public AzureServiceBusConsumerClient(
             ILogger logger,
             string subscriptionName,
-            AzureServiceBusOptions options)
+            IOptions<AzureServiceBusOptions> options)
         {
             _logger = logger;
             _subscriptionName = subscriptionName;
-            _asbOptions = options ?? throw new ArgumentNullException(nameof(options));
-
-            InitAzureServiceBusClient().GetAwaiter().GetResult();
+            _asbOptions = options.Value ?? throw new ArgumentNullException(nameof(options));
         }
 
         public event EventHandler<MessageContext> OnMessageReceived;
@@ -48,6 +49,8 @@ namespace DotNetCore.CAP.AzureServiceBus
                 throw new ArgumentNullException(nameof(topics));
             }
 
+            ConnectAsync().GetAwaiter().GetResult();
+
             var allRuleNames = _consumerClient.GetRulesAsync().GetAwaiter().GetResult().Select(x => x.Name);
 
             foreach (var newRule in topics.Except(allRuleNames))
@@ -73,6 +76,8 @@ namespace DotNetCore.CAP.AzureServiceBus
 
         public void Listening(TimeSpan timeout, CancellationToken cancellationToken)
         {
+            ConnectAsync().GetAwaiter().GetResult();
+
             _consumerClient.RegisterMessageHandler(OnConsumerReceived,
                 new MessageHandlerOptions(OnExceptionReceived)
                 {
@@ -106,33 +111,50 @@ namespace DotNetCore.CAP.AzureServiceBus
 
         #region private methods
 
-        private async Task InitAzureServiceBusClient()
+        private async Task ConnectAsync()
         {
-            ManagementClient mClient;
-            if (_asbOptions.ManagementTokenProvider != null)
-            {
-                mClient = new ManagementClient(new ServiceBusConnectionStringBuilder(
-                    _asbOptions.ConnectionString), _asbOptions.ManagementTokenProvider);
-            }
-            else
+            if (_consumerClient != null)
             {
-                mClient = new ManagementClient(_asbOptions.ConnectionString);
+                return;
             }
 
-            if (!await mClient.TopicExistsAsync(_asbOptions.TopicPath))
+            _connectionLock.Wait();
+
+            try
             {
-                await mClient.CreateTopicAsync(_asbOptions.TopicPath);
-                _logger.LogInformation($"Azure Service Bus created topic: {_asbOptions.TopicPath}");
+                if (_consumerClient == null)
+                {
+                    ManagementClient mClient;
+                    if (_asbOptions.ManagementTokenProvider != null)
+                    {
+                        mClient = new ManagementClient(new ServiceBusConnectionStringBuilder(
+                            _asbOptions.ConnectionString), _asbOptions.ManagementTokenProvider);
+                    }
+                    else
+                    {
+                        mClient = new ManagementClient(_asbOptions.ConnectionString);
+                    }
+
+                    if (!await mClient.TopicExistsAsync(_asbOptions.TopicPath))
+                    {
+                        await mClient.CreateTopicAsync(_asbOptions.TopicPath);
+                        _logger.LogInformation($"Azure Service Bus created topic: {_asbOptions.TopicPath}");
+                    }
+
+                    if (!await mClient.SubscriptionExistsAsync(_asbOptions.TopicPath, _subscriptionName))
+                    {
+                        await mClient.CreateSubscriptionAsync(_asbOptions.TopicPath, _subscriptionName);
+                        _logger.LogInformation($"Azure Service Bus topic {_asbOptions.TopicPath} created subscription: {_subscriptionName}");
+                    }
+
+                    _consumerClient = new SubscriptionClient(_asbOptions.ConnectionString, _asbOptions.TopicPath, _subscriptionName,
+                        ReceiveMode.PeekLock, RetryPolicy.Default);
+                }
             }
-
-            if (!await mClient.SubscriptionExistsAsync(_asbOptions.TopicPath, _subscriptionName))
+            finally
             {
-                await mClient.CreateSubscriptionAsync(_asbOptions.TopicPath, _subscriptionName);
-                _logger.LogInformation($"Azure Service Bus topic {_asbOptions.TopicPath} created subscription: {_subscriptionName}");
+                _connectionLock.Release();
             }
-
-            _consumerClient = new SubscriptionClient(_asbOptions.ConnectionString, _asbOptions.TopicPath, _subscriptionName,
-                ReceiveMode.PeekLock, RetryPolicy.Default);
         }
 
         private Task OnConsumerReceived(Message message, CancellationToken token)

src/DotNetCore.CAP.AzureServiceBus/AzureServiceBusConsumerClientFactory.cs

@@ -2,17 +2,18 @@
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 
 namespace DotNetCore.CAP.AzureServiceBus
 {
     internal sealed class AzureServiceBusConsumerClientFactory : IConsumerClientFactory
     {
         private readonly ILoggerFactory _loggerFactory;
-        private readonly AzureServiceBusOptions _asbOptions;
+        private readonly IOptions<AzureServiceBusOptions> _asbOptions;
 
         public AzureServiceBusConsumerClientFactory(
             ILoggerFactory loggerFactory,
-            AzureServiceBusOptions asbOptions)
+            IOptions<AzureServiceBusOptions> asbOptions)
         {
             _loggerFactory = loggerFactory;
             _asbOptions = asbOptions;

src/DotNetCore.CAP.AzureServiceBus/CAP.AzureServiceBusOptionsExtension.cs

@@ -21,9 +21,7 @@ namespace DotNetCore.CAP
         {
             services.AddSingleton<CapMessageQueueMakerService>();
 
-            var azureServiceBusOptions = new AzureServiceBusOptions();
-            _configure?.Invoke(azureServiceBusOptions);
-            services.AddSingleton(azureServiceBusOptions);
+            services.Configure(_configure);
 
             services.AddSingleton<IConsumerClientFactory, AzureServiceBusConsumerClientFactory>();
             services.AddSingleton<IPublishExecutor, AzureServiceBusPublishMessageSender>();

src/DotNetCore.CAP.AzureServiceBus/IPublishMessageSender.AzureServiceBus.cs

@@ -3,40 +3,45 @@
 
 using System;
 using System.Text;
+using System.Threading;
 using System.Threading.Tasks;
 using DotNetCore.CAP.Internal;
 using DotNetCore.CAP.Processor.States;
 using Microsoft.Azure.ServiceBus;
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 
 namespace DotNetCore.CAP.AzureServiceBus
 {
     internal class AzureServiceBusPublishMessageSender : BasePublishMessageSender
     {
+        private readonly SemaphoreSlim _connectionLock = new SemaphoreSlim(initialCount: 1, maxCount: 1);
+
         private readonly ILogger _logger;
-        private readonly ITopicClient _topicClient;
+        private readonly IOptions<AzureServiceBusOptions> _asbOptions;
+
+        private ITopicClient _topicClient;
 
         public AzureServiceBusPublishMessageSender(
             ILogger<AzureServiceBusPublishMessageSender> logger,
-            CapOptions options,
-            AzureServiceBusOptions asbOptions,
+            IOptions<CapOptions> options,
+            IOptions<AzureServiceBusOptions> asbOptions,
             IStateChanger stateChanger,
             IStorageConnection connection)
             : base(logger, options, connection, stateChanger)
         {
             _logger = logger;
-            ServersAddress = asbOptions.ConnectionString;
-
-            _topicClient = new TopicClient(
-                ServersAddress, 
-                asbOptions.TopicPath,
-                RetryPolicy.NoRetry);
+            _asbOptions = asbOptions;
         }
 
+        protected override string ServersAddress => _asbOptions.Value.ConnectionString;
+
         public override async Task<OperateResult> PublishAsync(string keyName, string content)
         {
             try
             {
+                Connect();
+
                 var contentBytes = Encoding.UTF8.GetBytes(content);
 
                 var message = new Message
@@ -59,5 +64,27 @@ namespace DotNetCore.CAP.AzureServiceBus
                 return OperateResult.Failed(wrapperEx);
             }
         }
+
+        private void Connect()
+        {
+            if (_topicClient != null)
+            {
+                return;
+            }
+
+            _connectionLock.Wait();
+
+            try
+            {
+                if (_topicClient == null)
+                {
+                    _topicClient = new TopicClient(ServersAddress, _asbOptions.Value.TopicPath, RetryPolicy.NoRetry);
+                }
+            }
+            finally
+            {
+                _connectionLock.Release();
+            }
+        }
     }
 }
\ No newline at end of file

src/DotNetCore.CAP.InMemoryStorage/CAP.InMemoryCapOptionsExtension.cs

@@ -17,9 +17,9 @@ namespace DotNetCore.CAP
             services.AddSingleton<IStorageConnection, InMemoryStorageConnection>();
 
             services.AddSingleton<ICapPublisher, InMemoryPublisher>();
-            services.AddSingleton<ICallbackPublisher, InMemoryPublisher>();
+            services.AddSingleton<ICallbackPublisher>(x => (InMemoryPublisher)x.GetService<ICapPublisher>());
+            services.AddSingleton<ICollectProcessor, InMemoryCollectProcessor>();
 
-            services.AddTransient<ICollectProcessor, InMemoryCollectProcessor>();
             services.AddTransient<CapTransactionBase, InMemoryCapTransaction>();
         }
     }

src/DotNetCore.CAP.InMemoryStorage/IStorageConnection.InMemory.cs

@@ -8,6 +8,7 @@ using System.Linq;
 using System.Threading.Tasks;
 using DotNetCore.CAP.Infrastructure;
 using DotNetCore.CAP.Models;
+using Microsoft.Extensions.Options;
 
 namespace DotNetCore.CAP.InMemoryStorage
 {
@@ -15,9 +16,9 @@ namespace DotNetCore.CAP.InMemoryStorage
     {
         private readonly CapOptions _capOptions;
 
-        public InMemoryStorageConnection(CapOptions capOptions)
+        public InMemoryStorageConnection(IOptions<CapOptions> capOptions)
         {
-            _capOptions = capOptions;
+            _capOptions = capOptions.Value;
 
             PublishedMessages = new List<CapPublishedMessage>();
             ReceivedMessages = new List<CapReceivedMessage>();

src/DotNetCore.CAP.Kafka/CAP.KafkaCapOptionsExtension.cs

@@ -21,9 +21,7 @@ namespace DotNetCore.CAP
         {
             services.AddSingleton<CapMessageQueueMakerService>();
 
-            var kafkaOptions = new KafkaOptions();
-            _configure?.Invoke(kafkaOptions);
-            services.AddSingleton(kafkaOptions);
+            services.Configure(_configure);
 
             services.AddSingleton<IConsumerClientFactory, KafkaConsumerClientFactory>();
             services.AddSingleton<IPublishExecutor, KafkaPublishMessageSender>();

src/DotNetCore.CAP.Kafka/DotNetCore.CAP.Kafka.csproj

@@ -13,7 +13,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Confluent.Kafka" Version="1.0.0" />
+    <PackageReference Include="Confluent.Kafka" Version="1.1.0" />
   </ItemGroup>
 
   <ItemGroup>

src/DotNetCore.CAP.Kafka/IConnectionPool.Default.cs

@@ -6,6 +6,7 @@ using System.Collections.Concurrent;
 using System.Threading;
 using Confluent.Kafka;
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 using Newtonsoft.Json;
 
 namespace DotNetCore.CAP.Kafka
@@ -17,18 +18,16 @@ namespace DotNetCore.CAP.Kafka
         private int _pCount;
         private int _maxSize;
 
-        public ConnectionPool(ILogger<ConnectionPool> logger, KafkaOptions options)
+        public ConnectionPool(ILogger<ConnectionPool> logger, IOptions<KafkaOptions> options)
         {
-            ServersAddress = options.Servers;
-
-            _options = options;
+            _options = options.Value;
             _producerPool = new ConcurrentQueue<IProducer<Null, string>>();
-            _maxSize = options.ConnectionPoolSize;
-
-            logger.LogDebug("Kafka configuration of CAP :\r\n {0}", JsonConvert.SerializeObject(options.AsKafkaConfig(), Formatting.Indented));
+            _maxSize = _options.ConnectionPoolSize;
+             
+            logger.LogDebug("Kafka configuration of CAP :\r\n {0}", JsonConvert.SerializeObject(_options.AsKafkaConfig(), Formatting.Indented));
         }
 
-        public string ServersAddress { get; }
+        public string ServersAddress => _options.Servers;
 
         public IProducer<Null, string> RentProducer()
         {

src/DotNetCore.CAP.Kafka/IPublishMessageSender.Kafka.cs

@@ -7,6 +7,7 @@ using Confluent.Kafka;
 using DotNetCore.CAP.Internal;
 using DotNetCore.CAP.Processor.States;
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 
 namespace DotNetCore.CAP.Kafka
 {
@@ -16,15 +17,19 @@ namespace DotNetCore.CAP.Kafka
         private readonly ILogger _logger;
 
         public KafkaPublishMessageSender(
-            CapOptions options, IStateChanger stateChanger, IStorageConnection connection,
-            IConnectionPool connectionPool, ILogger<KafkaPublishMessageSender> logger)
+            ILogger<KafkaPublishMessageSender> logger, 
+            IOptions<CapOptions> options,
+            IStorageConnection connection,
+            IConnectionPool connectionPool, 
+            IStateChanger stateChanger)
             : base(logger, options, connection, stateChanger)
         {
             _logger = logger;
             _connectionPool = connectionPool;
-            ServersAddress = _connectionPool.ServersAddress;
         }
 
+        protected override string ServersAddress => _connectionPool.ServersAddress;
+
         public override async Task<OperateResult> PublishAsync(string keyName, string content)
         {
             var producer = _connectionPool.RentProducer();

src/DotNetCore.CAP.Kafka/KafkaConsumerClient.cs

@@ -5,25 +5,24 @@ using System;
 using System.Collections.Generic;
 using System.Threading;
 using Confluent.Kafka;
+using Microsoft.Extensions.Options;
 
 namespace DotNetCore.CAP.Kafka
 {
     internal sealed class KafkaConsumerClient : IConsumerClient
     {
+        private readonly SemaphoreSlim _connectionLock = new SemaphoreSlim(initialCount: 1, maxCount: 1);
+
         private readonly string _groupId;
         private readonly KafkaOptions _kafkaOptions;
         private IConsumer<Null, string> _consumerClient;
 
-        public KafkaConsumerClient(string groupId, KafkaOptions options)
+        public KafkaConsumerClient(string groupId, IOptions<KafkaOptions> options)
         {
             _groupId = groupId;
-            _kafkaOptions = options ?? throw new ArgumentNullException(nameof(options));
-
-            InitKafkaClient();
+            _kafkaOptions = options.Value ?? throw new ArgumentNullException(nameof(options));
         }
 
-        public IDeserializer<string> StringDeserializer { get; set; }
-
         public event EventHandler<MessageContext> OnMessageReceived;
 
         public event EventHandler<LogMessageEventArgs> OnLog;
@@ -37,11 +36,15 @@ namespace DotNetCore.CAP.Kafka
                 throw new ArgumentNullException(nameof(topics));
             }
 
+            Connect();
+
             _consumerClient.Subscribe(topics);
         }
 
         public void Listening(TimeSpan timeout, CancellationToken cancellationToken)
         {
+            Connect();
+
             while (true)
             {
                 var consumerResult = _consumerClient.Consume(cancellationToken);
@@ -77,17 +80,32 @@ namespace DotNetCore.CAP.Kafka
 
         #region private methods
 
-        private void InitKafkaClient()
+        private void Connect()
         {
-            lock (_kafkaOptions)
+            if (_consumerClient != null)
             {
-                _kafkaOptions.MainConfig["group.id"] = _groupId;
-                _kafkaOptions.MainConfig["auto.offset.reset"] = "earliest";
-                var config = _kafkaOptions.AsKafkaConfig();
-                _consumerClient = new ConsumerBuilder<Null, string>(config)
-                    .SetErrorHandler(ConsumerClient_OnConsumeError)
-                    .Build();
+                return;
             }
+
+            _connectionLock.Wait();
+
+            try
+            {
+                if (_consumerClient == null)
+                {
+                    _kafkaOptions.MainConfig["group.id"] = _groupId;
+                    _kafkaOptions.MainConfig["auto.offset.reset"] = "earliest";
+                    var config = _kafkaOptions.AsKafkaConfig();
+
+                    _consumerClient = new ConsumerBuilder<Null, string>(config)
+                        .SetErrorHandler(ConsumerClient_OnConsumeError)
+                        .Build();
+                }
+            }
+            finally
+            {
+                _connectionLock.Release();
+            } 
         }
 
         private void ConsumerClient_OnConsumeError(IConsumer<Null, string> consumer, Error e)

src/DotNetCore.CAP.Kafka/KafkaConsumerClientFactory.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 Microsoft.Extensions.Options;
+
 namespace DotNetCore.CAP.Kafka
 {
     internal sealed class KafkaConsumerClientFactory : IConsumerClientFactory
     {
-        private readonly KafkaOptions _kafkaOptions;
+        private readonly IOptions<KafkaOptions> _kafkaOptions;
 
-        public KafkaConsumerClientFactory(KafkaOptions kafkaOptions)
+        public KafkaConsumerClientFactory(IOptions<KafkaOptions> kafkaOptions)
         {
             _kafkaOptions = kafkaOptions;
         }

src/DotNetCore.CAP.MongoDB/CAP.MongoDBCapOptionsExtension.cs

@@ -5,6 +5,7 @@ using System;
 using DotNetCore.CAP.Processor;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.DependencyInjection.Extensions;
+using Microsoft.Extensions.Options;
 using MongoDB.Driver;
 
 namespace DotNetCore.CAP.MongoDB
@@ -25,18 +26,20 @@ namespace DotNetCore.CAP.MongoDB
             services.AddSingleton<IStorage, MongoDBStorage>();
             services.AddSingleton<IStorageConnection, MongoDBStorageConnection>();
 
-            services.AddScoped<ICapPublisher, MongoDBPublisher>();
-            services.AddScoped<ICallbackPublisher, MongoDBPublisher>();
+            services.AddSingleton<ICapPublisher, MongoDBPublisher>();
+            services.AddSingleton<ICallbackPublisher>(x => (MongoDBPublisher)x.GetService<ICapPublisher>());
+            services.AddSingleton<ICollectProcessor, MongoDBCollectProcessor>();
 
-            services.AddTransient<ICollectProcessor, MongoDBCollectProcessor>();
             services.AddTransient<CapTransactionBase, MongoDBCapTransaction>();
 
-            var options = new MongoDBOptions();
-            _configure?.Invoke(options);
-            services.AddSingleton(options);
+            services.Configure(_configure);
 
             //Try to add IMongoClient if does not exists
-            services.TryAddSingleton<IMongoClient>(new MongoClient(options.DatabaseConnection));
+            services.TryAddSingleton<IMongoClient>(x =>
+            {
+                var options = x.GetService<IOptions<MongoDBOptions>>().Value;
+                return new MongoClient(options.DatabaseConnection);
+            });
         }
     }
 }
\ No newline at end of file

src/DotNetCore.CAP.MongoDB/ICapPublisher.MongoDB.cs

@@ -7,6 +7,7 @@ using System.Threading.Tasks;
 using DotNetCore.CAP.Abstractions;
 using DotNetCore.CAP.Models;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
 using MongoDB.Driver;
 
 namespace DotNetCore.CAP.MongoDB
@@ -16,10 +17,9 @@ namespace DotNetCore.CAP.MongoDB
         private readonly IMongoClient _client;
         private readonly MongoDBOptions _options;
 
-        public MongoDBPublisher(IServiceProvider provider, MongoDBOptions options)
-            : base(provider)
+        public MongoDBPublisher(IServiceProvider provider) : base(provider)
         {
-            _options = options;
+            _options = provider.GetService<IOptions<MongoDBOptions>>().Value;
             _client = ServiceProvider.GetRequiredService<IMongoClient>();
         }
 
@@ -31,7 +31,7 @@ namespace DotNetCore.CAP.MongoDB
         protected override Task ExecuteAsync(CapPublishedMessage message, ICapTransaction transaction,
             CancellationToken cancel = default(CancellationToken))
         {
-            var insertOptions = new InsertOneOptions {BypassDocumentValidation = false};
+            var insertOptions = new InsertOneOptions { BypassDocumentValidation = false };
 
             var collection = _client
                 .GetDatabase(_options.DatabaseName)
@@ -51,11 +51,10 @@ namespace DotNetCore.CAP.MongoDB
 
             if (NotUseTransaction)
             {
-
                 return collection.InsertOneAsync(store, insertOptions, cancel);
             }
 
-            var dbTrans = (IClientSessionHandle) transaction.DbTransaction;
+            var dbTrans = (IClientSessionHandle)transaction.DbTransaction;
             return collection.InsertOneAsync(dbTrans, store, insertOptions, cancel);
         }
     }

src/DotNetCore.CAP.MongoDB/ICapTransaction.MongoDB.cs

@@ -39,6 +39,7 @@ namespace DotNetCore.CAP
         public override void Dispose()
         {
             (DbTransaction as IClientSessionHandle)?.Dispose();
+            DbTransaction = null;
         }
     }
 

src/DotNetCore.CAP.MongoDB/ICollectProcessor.MongoDB.cs

@@ -3,9 +3,9 @@
 
 using System;
 using System.Threading.Tasks;
-using DotNetCore.CAP.Models;
 using DotNetCore.CAP.Processor;
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 using MongoDB.Driver;
 
 namespace DotNetCore.CAP.MongoDB
@@ -17,19 +17,19 @@ namespace DotNetCore.CAP.MongoDB
         private readonly MongoDBOptions _options;
         private readonly TimeSpan _waitingInterval = TimeSpan.FromMinutes(5);
 
-        public MongoDBCollectProcessor(ILogger<MongoDBCollectProcessor> logger,
-            MongoDBOptions options,
+        public MongoDBCollectProcessor(
+            ILogger<MongoDBCollectProcessor> logger,
+            IOptions<MongoDBOptions> options,
             IMongoClient client)
         {
-            _options = options;
+            _options = options.Value;
             _logger = logger;
             _database = client.GetDatabase(_options.DatabaseName);
         }
 
         public async Task ProcessAsync(ProcessingContext context)
         {
-            _logger.LogDebug(
-                $"Collecting expired data from collection [{_options.PublishedCollection}].");
+            _logger.LogDebug($"Collecting expired data from collection [{_options.PublishedCollection}].");
 
             var publishedCollection = _database.GetCollection<PublishedMessage>(_options.PublishedCollection);
             var receivedCollection = _database.GetCollection<ReceivedMessage>(_options.ReceivedCollection);
@@ -39,6 +39,7 @@ namespace DotNetCore.CAP.MongoDB
                 new DeleteManyModel<PublishedMessage>(
                     Builders<PublishedMessage>.Filter.Lt(x => x.ExpiresAt, DateTime.Now))
             });
+
             await receivedCollection.BulkWriteAsync(new[]
             {
                 new DeleteManyModel<ReceivedMessage>(

src/DotNetCore.CAP.MongoDB/IMonitoringApi.MongoDB.cs

@@ -7,6 +7,7 @@ using DotNetCore.CAP.Dashboard;
 using DotNetCore.CAP.Dashboard.Monitoring;
 using DotNetCore.CAP.Infrastructure;
 using DotNetCore.CAP.Models;
+using Microsoft.Extensions.Options;
 using MongoDB.Bson;
 using MongoDB.Driver;
 
@@ -17,10 +18,10 @@ namespace DotNetCore.CAP.MongoDB
         private readonly IMongoDatabase _database;
         private readonly MongoDBOptions _options;
 
-        public MongoDBMonitoringApi(IMongoClient client, MongoDBOptions options)
+        public MongoDBMonitoringApi(IMongoClient client, IOptions<MongoDBOptions> options)
         {
             var mongoClient = client ?? throw new ArgumentNullException(nameof(client));
-            _options = options ?? throw new ArgumentNullException(nameof(options));
+            _options = options.Value ?? throw new ArgumentNullException(nameof(options));
 
             _database = mongoClient.GetDatabase(_options.DatabaseName);
         }
@@ -140,7 +141,7 @@ namespace DotNetCore.CAP.MongoDB
         private int GetNumberOfMessage(string collectionName, string statusName)
         {
             var collection = _database.GetCollection<BsonDocument>(collectionName);
-            var count = collection.CountDocuments(new BsonDocument {{"StatusName", statusName}});
+            var count = collection.CountDocuments(new BsonDocument { { "StatusName", statusName } });
             return int.Parse(count.ToString());
         }
 
@@ -199,7 +200,7 @@ namespace DotNetCore.CAP.MongoDB
                 }
             };
 
-            var pipeline = new[] {match, groupby};
+            var pipeline = new[] { match, groupby };
 
             var collection = _database.GetCollection<BsonDocument>(collectionName);
             var result = collection.Aggregate<BsonDocument>(pipeline).ToList();

src/DotNetCore.CAP.MongoDB/IStorage.MongoDB.cs

@@ -6,19 +6,21 @@ using System.Threading;
 using System.Threading.Tasks;
 using DotNetCore.CAP.Dashboard;
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 using MongoDB.Driver;
 
 namespace DotNetCore.CAP.MongoDB
 {
     public class MongoDBStorage : IStorage
     {
-        private readonly CapOptions _capOptions;
+        private readonly IOptions<CapOptions> _capOptions;
         private readonly IMongoClient _client;
         private readonly ILogger<MongoDBStorage> _logger;
-        private readonly MongoDBOptions _options;
+        private readonly IOptions<MongoDBOptions> _options;
 
-        public MongoDBStorage(CapOptions capOptions,
-            MongoDBOptions options,
+        public MongoDBStorage(
+            IOptions<CapOptions> capOptions,
+            IOptions<MongoDBOptions> options,
             IMongoClient client,
             ILogger<MongoDBStorage> logger)
         {
@@ -45,31 +47,32 @@ namespace DotNetCore.CAP.MongoDB
                 return;
             }
 
-            var database = _client.GetDatabase(_options.DatabaseName);
-            var names = (await database.ListCollectionNamesAsync(cancellationToken: cancellationToken))?.ToList();
+            var options = _options.Value;
+            var database = _client.GetDatabase(options.DatabaseName);
+            var names = (await database.ListCollectionNamesAsync(cancellationToken: cancellationToken)).ToList();
 
-            if (names.All(n => n != _options.ReceivedCollection))
+            if (names.All(n => n != options.ReceivedCollection))
             {
-                await database.CreateCollectionAsync(_options.ReceivedCollection, cancellationToken: cancellationToken);
+                await database.CreateCollectionAsync(options.ReceivedCollection, cancellationToken: cancellationToken);
             }
 
-            if (names.All(n => n != _options.PublishedCollection))
+            if (names.All(n => n != options.PublishedCollection))
             {
-                await database.CreateCollectionAsync(_options.PublishedCollection,
+                await database.CreateCollectionAsync(options.PublishedCollection,
                     cancellationToken: cancellationToken);
             }
 
-            var receivedMessageIndexNames = new string[] {
+            var receivedMessageIndexNames = new[] {
                 nameof(ReceivedMessage.Name), nameof(ReceivedMessage.Added), nameof(ReceivedMessage.ExpiresAt),
                 nameof(ReceivedMessage.StatusName), nameof(ReceivedMessage.Retries), nameof(ReceivedMessage.Version) };
 
-            var publishedMessageIndexNames = new string[] {
+            var publishedMessageIndexNames = new[] {
                 nameof(PublishedMessage.Name), nameof(PublishedMessage.Added), nameof(PublishedMessage.ExpiresAt),
                 nameof(PublishedMessage.StatusName), nameof(PublishedMessage.Retries), nameof(PublishedMessage.Version) };
 
             await Task.WhenAll(
-                TryCreateIndexesAsync<ReceivedMessage>(_options.ReceivedCollection, receivedMessageIndexNames),
-                TryCreateIndexesAsync<PublishedMessage>(_options.PublishedCollection, publishedMessageIndexNames)
+                TryCreateIndexesAsync<ReceivedMessage>(options.ReceivedCollection, receivedMessageIndexNames),
+                TryCreateIndexesAsync<PublishedMessage>(options.PublishedCollection, publishedMessageIndexNames)
                 );
 
             _logger.LogDebug("Ensuring all create database tables script are applied.");
@@ -87,15 +90,15 @@ namespace DotNetCore.CAP.MongoDB
                 if (indexNames.Any() == false)
                     return;
 
-                var indexes = indexNames.Select(index_name =>
+                var indexes = indexNames.Select(indexName =>
                 {
                     var indexOptions = new CreateIndexOptions
                     {
-                        Name = index_name,
+                        Name = indexName,
                         Background = true,
                     };
                     var indexBuilder = Builders<T>.IndexKeys;
-                    return new CreateIndexModel<T>(indexBuilder.Descending(index_name), indexOptions);
+                    return new CreateIndexModel<T>(indexBuilder.Descending(indexName), indexOptions);
                 }).ToArray();
 
                 await col.Indexes.CreateManyAsync(indexes, cancellationToken);

src/DotNetCore.CAP.MongoDB/IStorageConnection.MongoDB.cs

@@ -6,6 +6,7 @@ using System.Collections.Generic;
 using System.Threading.Tasks;
 using DotNetCore.CAP.Infrastructure;
 using DotNetCore.CAP.Models;
+using Microsoft.Extensions.Options;
 using MongoDB.Driver;
 
 namespace DotNetCore.CAP.MongoDB
@@ -17,10 +18,13 @@ namespace DotNetCore.CAP.MongoDB
         private readonly IMongoDatabase _database;
         private readonly MongoDBOptions _options;
 
-        public MongoDBStorageConnection(CapOptions capOptions, MongoDBOptions options, IMongoClient client)
+        public MongoDBStorageConnection(
+            IOptions<CapOptions> capOptions,
+            IOptions<MongoDBOptions> options, 
+            IMongoClient client)
         {
-            _capOptions = capOptions;
-            _options = options;
+            _capOptions = capOptions.Value;
+            _options = options.Value;
             _client = client;
             _database = _client.GetDatabase(_options.DatabaseName);
         }

src/DotNetCore.CAP.MongoDB/IStorageTransaction.MongoDB.cs

@@ -17,7 +17,7 @@ namespace DotNetCore.CAP.MongoDB
         public MongoDBStorageTransaction(IMongoClient client, MongoDBOptions options)
         {
             _options = options;
-            _database = client.GetDatabase(options.DatabaseName);
+            _database = client.GetDatabase(_options.DatabaseName);
             _session = client.StartSession();
             _session.StartTransaction();
         }

src/DotNetCore.CAP.MySql/CAP.MySqlCapOptionsExtension.cs

@@ -4,8 +4,8 @@
 using System;
 using DotNetCore.CAP.MySql;
 using DotNetCore.CAP.Processor;
-using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
 
 // ReSharper disable once CheckNamespace
 namespace DotNetCore.CAP
@@ -24,39 +24,15 @@ namespace DotNetCore.CAP
             services.AddSingleton<CapStorageMarkerService>();
             services.AddSingleton<IStorage, MySqlStorage>();
             services.AddSingleton<IStorageConnection, MySqlStorageConnection>();
+            services.AddSingleton<ICapPublisher, MySqlPublisher>();
+            services.AddSingleton<ICallbackPublisher>(provider => (MySqlPublisher)provider.GetService<ICapPublisher>());
+            services.AddSingleton<ICollectProcessor, MySqlCollectProcessor>();
 
-            services.AddScoped<ICapPublisher, MySqlPublisher>();
-            services.AddScoped<ICallbackPublisher, MySqlPublisher>();
-
-            services.AddTransient<ICollectProcessor, MySqlCollectProcessor>();
             services.AddTransient<CapTransactionBase, MySqlCapTransaction>();
 
-            AddSingletionMySqlOptions(services);
-        }
-
-        private void AddSingletionMySqlOptions(IServiceCollection services)
-        {
-            var mysqlOptions = new MySqlOptions();
-
-            _configure(mysqlOptions);
-
-            if (mysqlOptions.DbContextType != null)
-            {
-                services.AddSingleton(x =>
-                {
-                    using (var scope = x.CreateScope())
-                    {
-                        var provider = scope.ServiceProvider;
-                        var dbContext = (DbContext) provider.GetService(mysqlOptions.DbContextType);
-                        mysqlOptions.ConnectionString = dbContext.Database.GetDbConnection().ConnectionString;
-                        return mysqlOptions;
-                    }
-                });
-            }
-            else
-            {
-                services.AddSingleton(mysqlOptions);
-            }
-        }
+            //Add MySqlOptions
+            services.Configure(_configure);
+            services.AddSingleton<IConfigureOptions<MySqlOptions>, ConfigureMySqlOptions>();
+        } 
     }
 }
\ No newline at end of file

src/DotNetCore.CAP.MySql/CAP.MySqlOptions.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 Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
+
 namespace DotNetCore.CAP
 {
     public class MySqlOptions : EFOptions
@@ -10,4 +14,29 @@ namespace DotNetCore.CAP
         /// </summary>
         public string ConnectionString { get; set; }
     }
+
+    internal class ConfigureMySqlOptions : IConfigureOptions<MySqlOptions>
+    {
+        private readonly IServiceScopeFactory _serviceScopeFactory;
+
+        public ConfigureMySqlOptions(IServiceScopeFactory serviceScopeFactory)
+        {
+            _serviceScopeFactory = serviceScopeFactory;
+        }
+
+        public void Configure(MySqlOptions options)
+        {
+            if (options.DbContextType != null)
+            {
+                using (var scope = _serviceScopeFactory.CreateScope())
+                {
+                    var provider = scope.ServiceProvider;
+                    using (var dbContext = (DbContext)provider.GetRequiredService(options.DbContextType))
+                    {
+                        options.ConnectionString = dbContext.Database.GetDbConnection().ConnectionString;
+                    }
+                }
+            }
+        }
+    }
 }
\ No newline at end of file

src/DotNetCore.CAP.MySql/ICapPublisher.MySql.cs

@@ -10,6 +10,7 @@ using DotNetCore.CAP.Abstractions;
 using DotNetCore.CAP.Models;
 using Microsoft.EntityFrameworkCore.Storage;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
 using MySql.Data.MySqlClient;
 
 namespace DotNetCore.CAP.MySql
@@ -20,7 +21,7 @@ namespace DotNetCore.CAP.MySql
 
         public MySqlPublisher(IServiceProvider provider) : base(provider)
         {
-            _options = provider.GetService<MySqlOptions>();
+            _options = provider.GetService<IOptions<MySqlOptions>>().Value;
         }
 
         public async Task PublishCallbackAsync(CapPublishedMessage message)

src/DotNetCore.CAP.MySql/ICapTransaction.MySql.cs

@@ -50,6 +50,7 @@ namespace DotNetCore.CAP
         public override void Dispose()
         {
             (DbTransaction as IDbTransaction)?.Dispose();
+            DbTransaction = null;
         }
     }
 

src/DotNetCore.CAP.MySql/ICollectProcessor.MySql.cs

@@ -6,6 +6,7 @@ using System.Threading.Tasks;
 using Dapper;
 using DotNetCore.CAP.Processor;
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 using MySql.Data.MySqlClient;
 
 namespace DotNetCore.CAP.MySql
@@ -18,11 +19,10 @@ namespace DotNetCore.CAP.MySql
         private readonly MySqlOptions _options;
         private readonly TimeSpan _waitingInterval = TimeSpan.FromMinutes(5);
 
-        public MySqlCollectProcessor(ILogger<MySqlCollectProcessor> logger,
-            MySqlOptions mysqlOptions)
+        public MySqlCollectProcessor(ILogger<MySqlCollectProcessor> logger, IOptions<MySqlOptions> mysqlOptions)
         {
             _logger = logger;
-            _options = mysqlOptions;
+            _options = mysqlOptions.Value;
         }
 
         public async Task ProcessAsync(ProcessingContext context)
@@ -44,7 +44,7 @@ namespace DotNetCore.CAP.MySql
                     {
                         removedCount = await connection.ExecuteAsync(
                             $@"DELETE FROM `{table}` WHERE ExpiresAt < @now limit @count;",
-                            new {now = DateTime.Now, count = MaxBatch});
+                            new { now = DateTime.Now, count = MaxBatch });
                     }
 
                     if (removedCount != 0)

src/DotNetCore.CAP.MySql/IMonitoringApi.MySql.cs

@@ -10,6 +10,7 @@ using DotNetCore.CAP.Dashboard;
 using DotNetCore.CAP.Dashboard.Monitoring;
 using DotNetCore.CAP.Infrastructure;
 using DotNetCore.CAP.Models;
+using Microsoft.Extensions.Options;
 
 namespace DotNetCore.CAP.MySql
 {
@@ -18,10 +19,10 @@ namespace DotNetCore.CAP.MySql
         private readonly string _prefix;
         private readonly MySqlStorage _storage;
 
-        public MySqlMonitoringApi(IStorage storage, MySqlOptions options)
+        public MySqlMonitoringApi(IStorage storage, IOptions<MySqlOptions> options)
         {
             _storage = storage as MySqlStorage ?? throw new ArgumentNullException(nameof(storage));
-            _prefix = options?.TableNamePrefix ?? throw new ArgumentNullException(nameof(options));
+            _prefix = options.Value.TableNamePrefix ?? throw new ArgumentNullException(nameof(options));
         }
 
         public StatisticsDto GetStatistics()
@@ -126,7 +127,7 @@ select count(Id) from `{0}.received` where StatusName = N'Failed';", _prefix);
         {
             var sqlQuery = $"select count(Id) from `{_prefix}.{tableName}` where StatusName = @state";
 
-            var count = connection.ExecuteScalar<int>(sqlQuery, new {state = statusName});
+            var count = connection.ExecuteScalar<int>(sqlQuery, new { state = statusName });
             return count;
         }
 
@@ -169,7 +170,7 @@ select aggr.* from (
 
             var valuesMap = connection.Query<TimelineCounter>(
                     sqlQuery,
-                    new {keys = keyMaps.Keys, statusName})
+                    new { keys = keyMaps.Keys, statusName })
                 .ToDictionary(x => x.Key, x => x.Count);
 
             foreach (var key in keyMaps.Keys)

src/DotNetCore.CAP.MySql/IStorage.MySql.cs

@@ -8,20 +8,22 @@ using System.Threading.Tasks;
 using Dapper;
 using DotNetCore.CAP.Dashboard;
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 using MySql.Data.MySqlClient;
 
 namespace DotNetCore.CAP.MySql
 {
     public class MySqlStorage : IStorage
     {
-        private readonly CapOptions _capOptions;
+        private readonly IOptions<CapOptions> _capOptions;
+        private readonly IOptions<MySqlOptions> _options;
         private readonly IDbConnection _existingConnection = null;
         private readonly ILogger _logger;
-        private readonly MySqlOptions _options;
 
-        public MySqlStorage(ILogger<MySqlStorage> logger,
-            MySqlOptions options,
-            CapOptions capOptions)
+        public MySqlStorage(
+            ILogger<MySqlStorage> logger,
+            IOptions<MySqlOptions> options, 
+            IOptions<CapOptions> capOptions)
         {
             _options = options;
             _capOptions = capOptions;
@@ -45,10 +47,10 @@ namespace DotNetCore.CAP.MySql
                 return;
             }
 
-            var sql = CreateDbTablesScript(_options.TableNamePrefix);
-            using (var connection = new MySqlConnection(_options.ConnectionString))
+            var sql = CreateDbTablesScript(_options.Value.TableNamePrefix);
+            using (var connection = new MySqlConnection(_options.Value.ConnectionString))
             {
-               await connection.ExecuteAsync(sql);
+                await connection.ExecuteAsync(sql);
             }
 
             _logger.LogDebug("Ensuring all create database tables script are applied.");
@@ -103,7 +105,7 @@ CREATE TABLE IF NOT EXISTS `{prefix}.published` (
 
         internal IDbConnection CreateAndOpenConnection()
         {
-            var connection = _existingConnection ?? new MySqlConnection(_options.ConnectionString);
+            var connection = _existingConnection ?? new MySqlConnection(_options.Value.ConnectionString);
 
             if (connection.State == ConnectionState.Closed)
             {

src/DotNetCore.CAP.MySql/IStorageConnection.MySql.cs

@@ -7,6 +7,7 @@ using System.Threading.Tasks;
 using Dapper;
 using DotNetCore.CAP.Infrastructure;
 using DotNetCore.CAP.Models;
+using Microsoft.Extensions.Options;
 using MySql.Data.MySqlClient;
 
 namespace DotNetCore.CAP.MySql
@@ -14,16 +15,17 @@ namespace DotNetCore.CAP.MySql
     public class MySqlStorageConnection : IStorageConnection
     {
         private readonly CapOptions _capOptions;
+        private readonly IOptions<MySqlOptions> _options;
         private readonly string _prefix;
 
-        public MySqlStorageConnection(MySqlOptions options, CapOptions capOptions)
+        public MySqlStorageConnection(IOptions<MySqlOptions> options, IOptions<CapOptions> capOptions)
         {
-            _capOptions = capOptions;
-            Options = options;
-            _prefix = Options.TableNamePrefix;
+            _options = options;
+            _capOptions = capOptions.Value;
+            _prefix = options.Value.TableNamePrefix;
         }
 
-        public MySqlOptions Options { get; }
+        public MySqlOptions Options => _options.Value;
 
         public IStorageTransaction CreateTransaction()
         {

src/DotNetCore.CAP.PostgreSql/CAP.PostgreSqlCapOptionsExtension.cs

@@ -4,8 +4,8 @@
 using System;
 using DotNetCore.CAP.PostgreSql;
 using DotNetCore.CAP.Processor;
-using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
 
 // ReSharper disable once CheckNamespace
 namespace DotNetCore.CAP
@@ -24,38 +24,14 @@ namespace DotNetCore.CAP
             services.AddSingleton<CapStorageMarkerService>();
             services.AddSingleton<IStorage, PostgreSqlStorage>();
             services.AddSingleton<IStorageConnection, PostgreSqlStorageConnection>();
+            services.AddSingleton<ICapPublisher, PostgreSqlPublisher>();
+            services.AddSingleton<ICallbackPublisher>(provider => (PostgreSqlPublisher)provider.GetService<ICapPublisher>());
+            services.AddSingleton<ICollectProcessor, PostgreSqlCollectProcessor>();
 
-            services.AddScoped<ICapPublisher, PostgreSqlPublisher>();
-            services.AddScoped<ICallbackPublisher, PostgreSqlPublisher>();
-
-            services.AddTransient<ICollectProcessor, PostgreSqlCollectProcessor>();
             services.AddTransient<CapTransactionBase, PostgreSqlCapTransaction>();
 
-            AddSingletonPostgreSqlOptions(services);
-        }
-
-        private void AddSingletonPostgreSqlOptions(IServiceCollection services)
-        {
-            var postgreSqlOptions = new PostgreSqlOptions();
-            _configure(postgreSqlOptions);
-
-            if (postgreSqlOptions.DbContextType != null)
-            {
-                services.AddSingleton(x =>
-                {
-                    using (var scope = x.CreateScope())
-                    {
-                        var provider = scope.ServiceProvider;
-                        var dbContext = (DbContext) provider.GetService(postgreSqlOptions.DbContextType);
-                        postgreSqlOptions.ConnectionString = dbContext.Database.GetDbConnection().ConnectionString;
-                        return postgreSqlOptions;
-                    }
-                });
-            }
-            else
-            {
-                services.AddSingleton(postgreSqlOptions);
-            }
+            services.Configure(_configure);
+            services.AddSingleton<IConfigureOptions<PostgreSqlOptions>, ConfigurePostgreSqlOptions>();
         }
     }
 }
\ No newline at end of file

src/DotNetCore.CAP.PostgreSql/CAP.PostgreSqlOptions.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 Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
+
+// ReSharper disable once CheckNamespace
 namespace DotNetCore.CAP
 {
     public class PostgreSqlOptions : EFOptions
@@ -10,4 +15,29 @@ namespace DotNetCore.CAP
         /// </summary>
         public string ConnectionString { get; set; }
     }
+
+    internal class ConfigurePostgreSqlOptions : IConfigureOptions<PostgreSqlOptions>
+    {
+        private readonly IServiceScopeFactory _serviceScopeFactory;
+
+        public ConfigurePostgreSqlOptions(IServiceScopeFactory serviceScopeFactory)
+        {
+            _serviceScopeFactory = serviceScopeFactory;
+        }
+
+        public void Configure(PostgreSqlOptions options)
+        {
+            if (options.DbContextType != null)
+            {
+                using (var scope = _serviceScopeFactory.CreateScope())
+                {
+                    var provider = scope.ServiceProvider;
+                    using (var dbContext = (DbContext)provider.GetRequiredService(options.DbContextType))
+                    {
+                        options.ConnectionString = dbContext.Database.GetDbConnection().ConnectionString;
+                    }
+                }
+            }
+        }
+    }
 }
\ No newline at end of file

src/DotNetCore.CAP.PostgreSql/ICapPublisher.PostgreSql.cs

@@ -10,6 +10,7 @@ using DotNetCore.CAP.Abstractions;
 using DotNetCore.CAP.Models;
 using Microsoft.EntityFrameworkCore.Storage;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
 using Npgsql;
 
 namespace DotNetCore.CAP.PostgreSql
@@ -20,7 +21,7 @@ namespace DotNetCore.CAP.PostgreSql
 
         public PostgreSqlPublisher(IServiceProvider provider) : base(provider)
         {
-            _options = provider.GetService<PostgreSqlOptions>();
+            _options = provider.GetService<IOptions<PostgreSqlOptions>>().Value;
         }
 
         public async Task PublishCallbackAsync(CapPublishedMessage message)

src/DotNetCore.CAP.PostgreSql/ICapTransaction.PostgreSql.cs

@@ -50,6 +50,7 @@ namespace DotNetCore.CAP
         public override void Dispose()
         {
             (DbTransaction as IDbTransaction)?.Dispose();
+            DbTransaction = null;
         }
     }
 

src/DotNetCore.CAP.PostgreSql/ICollectlProcessor.PostgreSql.cs

@@ -6,6 +6,7 @@ using System.Threading.Tasks;
 using Dapper;
 using DotNetCore.CAP.Processor;
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 using Npgsql;
 
 namespace DotNetCore.CAP.PostgreSql
@@ -25,10 +26,10 @@ namespace DotNetCore.CAP.PostgreSql
         private readonly TimeSpan _waitingInterval = TimeSpan.FromMinutes(5);
 
         public PostgreSqlCollectProcessor(ILogger<PostgreSqlCollectProcessor> logger,
-            PostgreSqlOptions sqlServerOptions)
+            IOptions<PostgreSqlOptions> sqlServerOptions)
         {
             _logger = logger;
-            _options = sqlServerOptions;
+            _options = sqlServerOptions.Value;
         }
 
         public async Task ProcessAsync(ProcessingContext context)
@@ -44,7 +45,7 @@ namespace DotNetCore.CAP.PostgreSql
                     {
                         removedCount = await connection.ExecuteAsync(
                             $"DELETE FROM \"{_options.Schema}\".\"{table}\" WHERE \"ExpiresAt\" < @now AND \"Id\" IN (SELECT \"Id\" FROM \"{_options.Schema}\".\"{table}\" LIMIT @count);",
-                            new {now = DateTime.Now, count = MaxBatch});
+                            new { now = DateTime.Now, count = MaxBatch });
                     }
 
                     if (removedCount != 0)

src/DotNetCore.CAP.PostgreSql/IMonitoringApi.PostgreSql.cs

@@ -10,6 +10,7 @@ using DotNetCore.CAP.Dashboard;
 using DotNetCore.CAP.Dashboard.Monitoring;
 using DotNetCore.CAP.Infrastructure;
 using DotNetCore.CAP.Models;
+using Microsoft.Extensions.Options;
 
 namespace DotNetCore.CAP.PostgreSql
 {
@@ -18,9 +19,9 @@ namespace DotNetCore.CAP.PostgreSql
         private readonly PostgreSqlOptions _options;
         private readonly PostgreSqlStorage _storage;
 
-        public PostgreSqlMonitoringApi(IStorage storage, PostgreSqlOptions options)
+        public PostgreSqlMonitoringApi(IStorage storage, IOptions<PostgreSqlOptions> options)
         {
-            _options = options ?? throw new ArgumentNullException(nameof(options));
+            _options = options.Value ?? throw new ArgumentNullException(nameof(options));
             _storage = storage as PostgreSqlStorage ?? throw new ArgumentNullException(nameof(storage));
         }
 

src/DotNetCore.CAP.PostgreSql/IStorage.PostgreSql.cs

@@ -8,20 +8,21 @@ using System.Threading.Tasks;
 using Dapper;
 using DotNetCore.CAP.Dashboard;
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 using Npgsql;
 
 namespace DotNetCore.CAP.PostgreSql
 {
     public class PostgreSqlStorage : IStorage
     {
-        private readonly CapOptions _capOptions;
+        private readonly IOptions<CapOptions> _capOptions;
         private readonly IDbConnection _existingConnection = null;
         private readonly ILogger _logger;
-        private readonly PostgreSqlOptions _options;
+        private readonly IOptions<PostgreSqlOptions> _options;
 
         public PostgreSqlStorage(ILogger<PostgreSqlStorage> logger,
-            CapOptions capOptions,
-            PostgreSqlOptions options)
+            IOptions<CapOptions> capOptions,
+            IOptions<PostgreSqlOptions> options)
         {
             _options = options;
             _logger = logger;
@@ -45,9 +46,9 @@ namespace DotNetCore.CAP.PostgreSql
                 return;
             }
 
-            var sql = CreateDbTablesScript(_options.Schema);
+            var sql = CreateDbTablesScript(_options.Value.Schema);
 
-            using (var connection = new NpgsqlConnection(_options.ConnectionString))
+            using (var connection = new NpgsqlConnection(_options.Value.ConnectionString))
             {
                 await connection.ExecuteAsync(sql);
             }
@@ -72,7 +73,7 @@ namespace DotNetCore.CAP.PostgreSql
 
         internal IDbConnection CreateAndOpenConnection()
         {
-            var connection = _existingConnection ?? new NpgsqlConnection(_options.ConnectionString);
+            var connection = _existingConnection ?? new NpgsqlConnection(_options.Value.ConnectionString);
 
             if (connection.State == ConnectionState.Closed)
             {

src/DotNetCore.CAP.PostgreSql/IStorageConnection.PostgreSql.cs

@@ -7,6 +7,7 @@ using System.Threading.Tasks;
 using Dapper;
 using DotNetCore.CAP.Infrastructure;
 using DotNetCore.CAP.Models;
+using Microsoft.Extensions.Options;
 using Npgsql;
 
 namespace DotNetCore.CAP.PostgreSql
@@ -15,10 +16,12 @@ namespace DotNetCore.CAP.PostgreSql
     {
         private readonly CapOptions _capOptions;
 
-        public PostgreSqlStorageConnection(PostgreSqlOptions options, CapOptions capOptions)
+        public PostgreSqlStorageConnection(
+            IOptions<PostgreSqlOptions> options,
+            IOptions<CapOptions> capOptions)
         {
-            _capOptions = capOptions;
-            Options = options;
+            _capOptions = capOptions.Value;
+            Options = options.Value;
         }
 
         public PostgreSqlOptions Options { get; }

src/DotNetCore.CAP.RabbitMQ/CAP.RabbiMQOptions.cs

@@ -6,6 +6,7 @@
 using System;
 using RabbitMQ.Client;
 
+// ReSharper disable once CheckNamespace
 namespace DotNetCore.CAP
 {
     public class RabbitMQOptions

src/DotNetCore.CAP.RabbitMQ/CAP.RabbitMQCapOptionsExtension.cs

@@ -20,11 +20,8 @@ namespace DotNetCore.CAP
         public void AddServices(IServiceCollection services)
         {
             services.AddSingleton<CapMessageQueueMakerService>();
-
-            var options = new RabbitMQOptions();
-            _configure?.Invoke(options);
-            services.AddSingleton(options);
-
+             
+            services.Configure(_configure);
             services.AddSingleton<IConsumerClientFactory, RabbitMQConsumerClientFactory>();
             services.AddSingleton<IConnectionChannelPool, ConnectionChannelPool>();
             services.AddSingleton<IPublishExecutor, RabbitMQPublishMessageSender>();

src/DotNetCore.CAP.RabbitMQ/IConnectionChannelPool.Default.cs

@@ -7,6 +7,7 @@ using System.Diagnostics;
 using System.Reflection;
 using System.Threading;
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 using RabbitMQ.Client;
 
 namespace DotNetCore.CAP.RabbitMQ
@@ -18,37 +19,34 @@ namespace DotNetCore.CAP.RabbitMQ
         private readonly ILogger<ConnectionChannelPool> _logger;
         private readonly ConcurrentQueue<IModel> _pool;
         private IConnection _connection;
-        private static readonly object s_lock = new object();
+        private static readonly object SLock = new object();
 
         private int _count;
         private int _maxSize;
 
-        public ConnectionChannelPool(ILogger<ConnectionChannelPool> logger,
-            CapOptions capOptions,
-            RabbitMQOptions options)
+        public ConnectionChannelPool(
+            ILogger<ConnectionChannelPool> logger,
+            IOptions<CapOptions> capOptionsAccessor,
+            IOptions<RabbitMQOptions> optionsAccessor)
         {
             _logger = logger;
             _maxSize = DefaultPoolSize;
             _pool = new ConcurrentQueue<IModel>();
-            _connectionActivator = CreateConnection(options);
 
-            HostAddress = options.HostName + ":" + options.Port;
+            var capOptions = capOptionsAccessor.Value;
+            var options = optionsAccessor.Value;
 
-            if (CapOptions.DefaultVersion == capOptions.Version)
-            {
-                Exchange = options.ExchangeName;
-            }
-            else
-            {
-                Exchange = options.ExchangeName + "." + capOptions.Version;
-            }
+            _connectionActivator = CreateConnection(options);
+
+            HostAddress = $"{options.HostName}:{options.Port}";
+            Exchange = CapOptions.DefaultVersion == capOptions.Version ? options.ExchangeName : $"{options.ExchangeName}.{capOptions.Version}";
 
             _logger.LogDebug($"RabbitMQ configuration:'HostName:{options.HostName}, Port:{options.Port}, UserName:{options.UserName}, Password:{options.Password}, ExchangeName:{options.ExchangeName}'");
         }
 
         IModel IConnectionChannelPool.Rent()
         {
-            lock (s_lock)
+            lock (SLock)
             {
                 while (_count > _maxSize)
                 {
@@ -100,14 +98,14 @@ namespace DotNetCore.CAP.RabbitMQ
                 Password = options.Password,
                 VirtualHost = options.VirtualHost
             };
-            
+
             if (options.HostName.Contains(","))
             {
                 options.ConnectionFactoryOptions?.Invoke(factory);
                 return () => factory.CreateConnection(
                     options.HostName.Split(new[] { "," }, StringSplitOptions.RemoveEmptyEntries), serviceName);
             }
-           
+
             factory.HostName = options.HostName;
             options.ConnectionFactoryOptions?.Invoke(factory);
             return () => factory.CreateConnection(serviceName);
@@ -135,7 +133,7 @@ namespace DotNetCore.CAP.RabbitMQ
             }
             catch (Exception e)
             {
-                _logger.LogError(e,"RabbitMQ channel model create failed!");
+                _logger.LogError(e, "RabbitMQ channel model create failed!");
                 Console.WriteLine(e);
                 throw;
             }

src/DotNetCore.CAP.RabbitMQ/IPublishMessageSender.RabbitMQ.cs

@@ -7,6 +7,7 @@ using System.Threading.Tasks;
 using DotNetCore.CAP.Internal;
 using DotNetCore.CAP.Processor.States;
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 using RabbitMQ.Client;
 using RabbitMQ.Client.Framing;
 
@@ -18,16 +19,21 @@ namespace DotNetCore.CAP.RabbitMQ
         private readonly ILogger _logger;
         private readonly string _exchange;
 
-        public RabbitMQPublishMessageSender(ILogger<RabbitMQPublishMessageSender> logger, CapOptions options,
-            IStorageConnection connection, IConnectionChannelPool connectionChannelPool, IStateChanger stateChanger)
+        public RabbitMQPublishMessageSender(
+            ILogger<RabbitMQPublishMessageSender> logger,
+            IOptions<CapOptions> options,
+            IStorageConnection connection,
+            IConnectionChannelPool connectionChannelPool,
+            IStateChanger stateChanger)
             : base(logger, options, connection, stateChanger)
         {
             _logger = logger;
             _connectionChannelPool = connectionChannelPool;
             _exchange = _connectionChannelPool.Exchange;
-            ServersAddress = _connectionChannelPool.HostAddress;
         }
 
+        protected override string ServersAddress => _connectionChannelPool.HostAddress;
+
         public override Task<OperateResult> PublishAsync(string keyName, string content)
         {
             var channel = _connectionChannelPool.Rent();
@@ -48,14 +54,14 @@ namespace DotNetCore.CAP.RabbitMQ
             }
             catch (Exception ex)
             {
-                var wapperEx = new PublisherSentFailedException(ex.Message, ex);
+                var wrapperEx = new PublisherSentFailedException(ex.Message, ex);
                 var errors = new OperateError
                 {
                     Code = ex.HResult.ToString(),
                     Description = ex.Message
                 };
 
-                return Task.FromResult(OperateResult.Failed(wapperEx, errors));
+                return Task.FromResult(OperateResult.Failed(wrapperEx, errors));
             }
             finally
             {

src/DotNetCore.CAP.RabbitMQ/RabbitMQConsumerClient.cs

@@ -5,6 +5,7 @@ using System;
 using System.Collections.Generic;
 using System.Text;
 using System.Threading;
+using Microsoft.Extensions.Options;
 using RabbitMQ.Client;
 using RabbitMQ.Client.Events;
 
@@ -12,6 +13,8 @@ namespace DotNetCore.CAP.RabbitMQ
 {
     internal sealed class RabbitMQConsumerClient : IConsumerClient
     {
+        private readonly SemaphoreSlim _connectionLock = new SemaphoreSlim(initialCount: 1, maxCount: 1);
+
         private readonly IConnectionChannelPool _connectionChannelPool;
         private readonly string _exchangeName;
         private readonly string _queueName;
@@ -23,14 +26,12 @@ namespace DotNetCore.CAP.RabbitMQ
 
         public RabbitMQConsumerClient(string queueName,
             IConnectionChannelPool connectionChannelPool,
-            RabbitMQOptions options)
+            IOptions<RabbitMQOptions> options)
         {
             _queueName = queueName;
             _connectionChannelPool = connectionChannelPool;
-            _rabbitMQOptions = options;
+            _rabbitMQOptions = options.Value;
             _exchangeName = connectionChannelPool.Exchange;
-
-            InitClient();
         }
 
         public event EventHandler<MessageContext> OnMessageReceived;
@@ -46,6 +47,8 @@ namespace DotNetCore.CAP.RabbitMQ
                 throw new ArgumentNullException(nameof(topics));
             }
 
+            Connect();
+
             foreach (var topic in topics)
             {
                 _channel.QueueBind(_queueName, _exchangeName, topic);
@@ -54,6 +57,8 @@ namespace DotNetCore.CAP.RabbitMQ
 
         public void Listening(TimeSpan timeout, CancellationToken cancellationToken)
         {
+            Connect();
+
             var consumer = new EventingBasicConsumer(_channel);
             consumer.Received += OnConsumerReceived;
             consumer.Shutdown += OnConsumerShutdown;
@@ -88,25 +93,39 @@ namespace DotNetCore.CAP.RabbitMQ
             _connection.Dispose();
         }
 
-        private void InitClient()
-        {
-            _connection = _connectionChannelPool.GetConnection();
+        #region events
 
-            _channel = _connection.CreateModel();
+        private void Connect()
+        {
+            if (_connection != null)
+            {
+                return;
+            }
 
-            _channel.ExchangeDeclare(
-                _exchangeName,
-                RabbitMQOptions.ExchangeType,
-                true);
+            _connectionLock.Wait();
 
-            var arguments = new Dictionary<string, object>
+            try
             {
-                {"x-message-ttl", _rabbitMQOptions.QueueMessageExpires}
-            };
-            _channel.QueueDeclare(_queueName, durable: true, exclusive: false, autoDelete: false, arguments: arguments);
-        }
+                if (_connection == null)
+                {
+                    _connection = _connectionChannelPool.GetConnection();
 
-        #region events
+                    _channel = _connection.CreateModel();
+
+                    _channel.ExchangeDeclare(_exchangeName, RabbitMQOptions.ExchangeType, true);
+
+                    var arguments = new Dictionary<string, object>
+                    {
+                        {"x-message-ttl", _rabbitMQOptions.QueueMessageExpires}
+                    };
+                    _channel.QueueDeclare(_queueName, durable: true, exclusive: false, autoDelete: false, arguments: arguments);
+                }
+            }
+            finally
+            {
+                _connectionLock.Release();
+            }
+        } 
 
         private void OnConsumerConsumerCancelled(object sender, ConsumerEventArgs e)
         {

src/DotNetCore.CAP.RabbitMQ/RabbitMQConsumerClientFactory.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 Microsoft.Extensions.Options;
+
 namespace DotNetCore.CAP.RabbitMQ
 {
     internal sealed class RabbitMQConsumerClientFactory : IConsumerClientFactory
     {
         private readonly IConnectionChannelPool _connectionChannelPool;
-        private readonly RabbitMQOptions _rabbitMQOptions;
+        private readonly IOptions<RabbitMQOptions> _rabbitMQOptions;
 
-        public RabbitMQConsumerClientFactory(RabbitMQOptions rabbitMQOptions, IConnectionChannelPool channelPool)
+        public RabbitMQConsumerClientFactory(IOptions<RabbitMQOptions> rabbitMQOptions, IConnectionChannelPool channelPool)
         {
             _rabbitMQOptions = rabbitMQOptions;
             _connectionChannelPool = channelPool;

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

@@ -5,8 +5,8 @@ using System;
 using DotNetCore.CAP.Processor;
 using DotNetCore.CAP.SqlServer;
 using DotNetCore.CAP.SqlServer.Diagnostics;
-using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
 
 // ReSharper disable once CheckNamespace
 namespace DotNetCore.CAP
@@ -23,42 +23,18 @@ namespace DotNetCore.CAP
         public void AddServices(IServiceCollection services)
         {
             services.AddSingleton<CapStorageMarkerService>();
+
             services.AddSingleton<DiagnosticProcessorObserver>();
             services.AddSingleton<IStorage, SqlServerStorage>();
             services.AddSingleton<IStorageConnection, SqlServerStorageConnection>();
+            services.AddSingleton<ICapPublisher, SqlServerPublisher>();
+            services.AddSingleton<ICallbackPublisher>(x => (SqlServerPublisher)x.GetService<ICapPublisher>());
+            services.AddSingleton<ICollectProcessor, SqlServerCollectProcessor>();
 
-            services.AddScoped<ICapPublisher, SqlServerPublisher>();
-            services.AddScoped<ICallbackPublisher, SqlServerPublisher>();
-
-            services.AddTransient<ICollectProcessor, SqlServerCollectProcessor>();
             services.AddTransient<CapTransactionBase, SqlServerCapTransaction>();
 
-            AddSqlServerOptions(services);
-        }
-
-        private void AddSqlServerOptions(IServiceCollection services)
-        {
-            var sqlServerOptions = new SqlServerOptions();
-
-            _configure(sqlServerOptions);
-
-            if (sqlServerOptions.DbContextType != null)
-            {
-                services.AddSingleton(x =>
-                {
-                    using (var scope = x.CreateScope())
-                    {
-                        var provider = scope.ServiceProvider;
-                        var dbContext = (DbContext) provider.GetService(sqlServerOptions.DbContextType);
-                        sqlServerOptions.ConnectionString = dbContext.Database.GetDbConnection().ConnectionString;
-                        return sqlServerOptions;
-                    }
-                });
-            }
-            else
-            {
-                services.AddSingleton(sqlServerOptions);
-            }
+            services.Configure(_configure);
+            services.AddSingleton<IConfigureOptions<SqlServerOptions>, ConfigureSqlServerOptions>();
         }
     }
 }
\ No newline at end of file

src/DotNetCore.CAP.SqlServer/CAP.SqlServerOptions.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 Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
+
+// ReSharper disable once CheckNamespace
 namespace DotNetCore.CAP
 {
     public class SqlServerOptions : EFOptions
@@ -10,4 +15,30 @@ namespace DotNetCore.CAP
         /// </summary>
         public string ConnectionString { get; set; }
     }
+
+
+    internal class ConfigureSqlServerOptions : IConfigureOptions<SqlServerOptions>
+    {
+        private readonly IServiceScopeFactory _serviceScopeFactory;
+
+        public ConfigureSqlServerOptions(IServiceScopeFactory serviceScopeFactory)
+        {
+            _serviceScopeFactory = serviceScopeFactory;
+        }
+
+        public void Configure(SqlServerOptions options)
+        {
+            if (options.DbContextType != null)
+            {
+                using (var scope = _serviceScopeFactory.CreateScope())
+                {
+                    var provider = scope.ServiceProvider;
+                    using (var dbContext = (DbContext)provider.GetRequiredService(options.DbContextType))
+                    {
+                        options.ConnectionString = dbContext.Database.GetDbConnection().ConnectionString;
+                    }
+                }
+            }
+        }
+    }
 }
\ No newline at end of file

src/DotNetCore.CAP.SqlServer/ICapPublisher.SqlServer.cs

@@ -11,6 +11,7 @@ using DotNetCore.CAP.Abstractions;
 using DotNetCore.CAP.Models;
 using Microsoft.EntityFrameworkCore.Storage;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
 
 namespace DotNetCore.CAP.SqlServer
 {
@@ -20,7 +21,7 @@ namespace DotNetCore.CAP.SqlServer
 
         public SqlServerPublisher(IServiceProvider provider) : base(provider)
         {
-            _options = ServiceProvider.GetService<SqlServerOptions>();
+            _options = ServiceProvider.GetService<IOptions<SqlServerOptions>>().Value;
         }
 
         public async Task PublishCallbackAsync(CapPublishedMessage message)

src/DotNetCore.CAP.SqlServer/ICapTransaction.SqlServer.cs

@@ -12,6 +12,7 @@ using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Infrastructure;
 using Microsoft.EntityFrameworkCore.Storage;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
 
 // ReSharper disable once CheckNamespace
 namespace DotNetCore.CAP
@@ -23,9 +24,9 @@ namespace DotNetCore.CAP
 
         public SqlServerCapTransaction(
             IDispatcher dispatcher,
-            SqlServerOptions sqlServerOptions,
             IServiceProvider serviceProvider) : base(dispatcher)
         {
+            var sqlServerOptions = serviceProvider.GetService<IOptions<SqlServerOptions>>().Value;
             if (sqlServerOptions.DbContextType != null)
             {
                 _dbContext = serviceProvider.GetService(sqlServerOptions.DbContextType) as DbContext;
@@ -56,14 +57,14 @@ namespace DotNetCore.CAP
                 }
             }
 
-            var transactionKey = ((SqlConnection) dbTransaction.Connection).ClientConnectionId;
+            var transactionKey = ((SqlConnection)dbTransaction.Connection).ClientConnectionId;
             if (_diagnosticProcessor.BufferList.TryGetValue(transactionKey, out var list))
             {
                 list.Add(msg);
             }
             else
             {
-                var msgList = new List<CapPublishedMessage>(1) {msg};
+                var msgList = new List<CapPublishedMessage>(1) { msg };
                 _diagnosticProcessor.BufferList.TryAdd(transactionKey, msgList);
             }
         }
@@ -109,6 +110,7 @@ namespace DotNetCore.CAP
                     dbContextTransaction.Dispose();
                     break;
             }
+            DbTransaction = null;
         }
     }
 
@@ -149,7 +151,7 @@ namespace DotNetCore.CAP
 
             var dbTransaction = dbConnection.BeginTransaction();
             var capTransaction = publisher.Transaction.Begin(dbTransaction, autoCommit);
-            return (IDbTransaction) capTransaction.DbTransaction;
+            return (IDbTransaction)capTransaction.DbTransaction;
         }
 
         /// <summary>

src/DotNetCore.CAP.SqlServer/ICollectProcessor.SqlServer.cs

@@ -7,6 +7,7 @@ using System.Threading.Tasks;
 using Dapper;
 using DotNetCore.CAP.Processor;
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 
 namespace DotNetCore.CAP.SqlServer
 {
@@ -25,10 +26,10 @@ namespace DotNetCore.CAP.SqlServer
         private readonly TimeSpan _waitingInterval = TimeSpan.FromMinutes(5);
 
         public SqlServerCollectProcessor(ILogger<SqlServerCollectProcessor> logger,
-            SqlServerOptions sqlServerOptions)
+            IOptions<SqlServerOptions> sqlServerOptions)
         {
             _logger = logger;
-            _options = sqlServerOptions;
+            _options = sqlServerOptions.Value;
         }
 
         public async Task ProcessAsync(ProcessingContext context)

src/DotNetCore.CAP.SqlServer/IStorage.SqlServer.cs

@@ -11,6 +11,7 @@ using Dapper;
 using DotNetCore.CAP.Dashboard;
 using DotNetCore.CAP.SqlServer.Diagnostics;
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 
 namespace DotNetCore.CAP.SqlServer
 {
@@ -23,14 +24,14 @@ namespace DotNetCore.CAP.SqlServer
         private readonly SqlServerOptions _options;
 
         public SqlServerStorage(ILogger<SqlServerStorage> logger,
-            CapOptions capOptions,
-            SqlServerOptions options,
+            IOptions<CapOptions> capOptions,
+            IOptions<SqlServerOptions> options,
             DiagnosticProcessorObserver diagnosticProcessorObserver)
         {
-            _options = options;
+            _options = options.Value;
             _diagnosticProcessorObserver = diagnosticProcessorObserver;
             _logger = logger;
-            _capOptions = capOptions;
+            _capOptions = capOptions.Value;
         }
 
         public IStorageConnection GetConnection()

src/DotNetCore.CAP/Abstractions/CapPublisherBase.cs

@@ -15,9 +15,9 @@ namespace DotNetCore.CAP.Abstractions
 {
     public abstract class CapPublisherBase : ICapPublisher
     {
-        private readonly CapTransactionBase _transaction;
         private readonly IMessagePacker _msgPacker;
         private readonly IContentSerializer _serializer;
+        private CapTransactionBase _transaction;
 
         protected bool NotUseTransaction;
 
@@ -28,14 +28,27 @@ namespace DotNetCore.CAP.Abstractions
         protected CapPublisherBase(IServiceProvider service)
         {
             ServiceProvider = service;
-            _transaction = service.GetRequiredService<CapTransactionBase>();
             _msgPacker = service.GetRequiredService<IMessagePacker>();
             _serializer = service.GetRequiredService<IContentSerializer>();
         }
 
         protected IServiceProvider ServiceProvider { get; }
 
-        public ICapTransaction Transaction => _transaction;
+        public ICapTransaction Transaction
+        {
+            get
+            {
+                if (_transaction == null)
+                {
+                    using (var scope = ServiceProvider.CreateScope())
+                    {
+                        _transaction = scope.ServiceProvider.GetRequiredService<CapTransactionBase>();
+                    }
+                }
+
+                return _transaction;
+            }
+        }
 
         public void Publish<T>(string name, T contentObj, string callbackName = null)
         {
@@ -99,7 +112,7 @@ namespace DotNetCore.CAP.Abstractions
             {
                 if (NotUseTransaction || Transaction.AutoCommit)
                 {
-                    _transaction.Dispose();
+                    _transaction?.Dispose();
                 }
             }
         }

src/DotNetCore.CAP/CAP.ServiceCollectionExtensions.cs

@@ -2,7 +2,6 @@
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
 using System;
-using System.Collections.Generic;
 using DotNetCore.CAP;
 using DotNetCore.CAP.Abstractions;
 using DotNetCore.CAP.Internal;
@@ -11,7 +10,6 @@ using DotNetCore.CAP.Processor.States;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.Extensions.DependencyInjection.Extensions;
-using Microsoft.Extensions.Hosting;
 
 // ReSharper disable once CheckNamespace
 namespace Microsoft.Extensions.DependencyInjection
@@ -58,7 +56,7 @@ namespace Microsoft.Extensions.DependencyInjection
             services.TryAddSingleton<IStateChanger, StateChanger>();
 
             //Queue's message processor
-            services.TryAddSingleton<NeedRetryMessageProcessor>();
+            services.TryAddSingleton<MessageNeedToRetryProcessor>();
             services.TryAddSingleton<TransportCheckProcessor>();
 
             //Sender and Executors   
@@ -73,11 +71,11 @@ namespace Microsoft.Extensions.DependencyInjection
             {
                 serviceExtension.AddServices(services);
             }
-            services.AddSingleton(options);
+            services.Configure(setupAction);
 
-            //Startup and Middleware
-            services.AddTransient<IHostedService, DefaultBootstrapper>();
+            //Startup and Hosted
             services.AddTransient<IStartupFilter, CapStartupFilter>();
+            services.AddHostedService<DefaultBootstrapper>();
 
             return new CapBuilder(services);
         }

src/DotNetCore.CAP/DotNetCore.CAP.csproj

@@ -33,11 +33,9 @@
   <ItemGroup>
     <PackageReference Include="Consul" Version="0.7.2.6" />
     <PackageReference Include="Microsoft.AspNetCore.Hosting.Abstractions" Version="2.2.0" />
-    <PackageReference Include="Microsoft.AspNetCore.Http.Abstractions" Version="2.2.0" />
-    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="2.2.0" />
+    <PackageReference Include="Microsoft.Extensions.Options" Version="2.2.0" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
     <PackageReference Include="System.Diagnostics.DiagnosticSource" Version="4.5.1" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="2.2.0" />
   </ItemGroup>
   
   <ItemGroup>

src/DotNetCore.CAP/IConsumerServiceSelector.Default.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;
-using System.Collections.Generic;
-using System.Linq;
-using System.Reflection;
-using System.Text.RegularExpressions;
-using DotNetCore.CAP.Abstractions;
-using DotNetCore.CAP.Infrastructure;
-using Microsoft.Extensions.DependencyInjection;
-using System.Collections.Concurrent;
-
-namespace DotNetCore.CAP
-{
-    /// <inheritdoc />
-    /// <summary>
-    /// A default <see cref="T:DotNetCore.CAP.Abstractions.IConsumerServiceSelector" /> implementation.
-    /// </summary>
-    public class DefaultConsumerServiceSelector : IConsumerServiceSelector
-    {
-        private readonly CapOptions _capOptions;
-        private readonly IServiceProvider _serviceProvider;
-
-        /// <summary>
-        /// since this class be designed as a Singleton service,the following two list must be thread safe!
-        /// </summary>
-        private readonly ConcurrentDictionary<string, List<RegexExecuteDescriptor<ConsumerExecutorDescriptor>>> _asteriskList;
-        private readonly ConcurrentDictionary<string, List<RegexExecuteDescriptor<ConsumerExecutorDescriptor>>> _poundList;
-
-        /// <summary>
-        /// Creates a new <see cref="DefaultConsumerServiceSelector" />.
-        /// </summary>
-        public DefaultConsumerServiceSelector(IServiceProvider serviceProvider, CapOptions capOptions)
-        {
-            _serviceProvider = serviceProvider;
-            _capOptions = capOptions;
-
-            _asteriskList = new ConcurrentDictionary<string, List<RegexExecuteDescriptor<ConsumerExecutorDescriptor>>>();
-            _poundList = new ConcurrentDictionary<string, List<RegexExecuteDescriptor<ConsumerExecutorDescriptor>>>();
-        }
-
-        public IReadOnlyList<ConsumerExecutorDescriptor> SelectCandidates()
-        {
-            var executorDescriptorList = new List<ConsumerExecutorDescriptor>();
-
-            executorDescriptorList.AddRange(FindConsumersFromInterfaceTypes(_serviceProvider));
-
-            executorDescriptorList.AddRange(FindConsumersFromControllerTypes());
-
-            return executorDescriptorList;
-        }
-
-        public ConsumerExecutorDescriptor SelectBestCandidate(string key, IReadOnlyList<ConsumerExecutorDescriptor> executeDescriptor)
-        {
-            var result = MatchUsingName(key, executeDescriptor);
-            if (result != null)
-            {
-                return result;
-            }
-
-            //[*] match with regex, i.e.  foo.*.abc
-            result = MatchAsteriskUsingRegex(key, executeDescriptor);
-            if (result != null)
-            {
-                return result;
-            }
-
-            //[#] match regex, i.e. foo.#
-            result = MatchPoundUsingRegex(key, executeDescriptor);
-            return result;
-        }
-
-        protected virtual IEnumerable<ConsumerExecutorDescriptor> FindConsumersFromInterfaceTypes(
-            IServiceProvider provider)
-        {
-            var executorDescriptorList = new List<ConsumerExecutorDescriptor>();
-
-            var capSubscribeTypeInfo = typeof(ICapSubscribe).GetTypeInfo();
-
+// 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;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text.RegularExpressions;
+using DotNetCore.CAP.Abstractions;
+using DotNetCore.CAP.Infrastructure;
+using Microsoft.Extensions.DependencyInjection;
+using System.Collections.Concurrent;
+using Microsoft.Extensions.Options;
+
+namespace DotNetCore.CAP
+{
+    /// <inheritdoc />
+    /// <summary>
+    /// A default <see cref="T:DotNetCore.CAP.Abstractions.IConsumerServiceSelector" /> implementation.
+    /// </summary>
+    public class DefaultConsumerServiceSelector : IConsumerServiceSelector
+    {
+        private readonly CapOptions _capOptions;
+        private readonly IServiceProvider _serviceProvider;
+
+        /// <summary>
+        /// since this class be designed as a Singleton service,the following two list must be thread safe!
+        /// </summary>
+        private readonly ConcurrentDictionary<string, List<RegexExecuteDescriptor<ConsumerExecutorDescriptor>>> _asteriskList;
+        private readonly ConcurrentDictionary<string, List<RegexExecuteDescriptor<ConsumerExecutorDescriptor>>> _poundList;
+
+        /// <summary>
+        /// Creates a new <see cref="DefaultConsumerServiceSelector" />.
+        /// </summary>
+        public DefaultConsumerServiceSelector(IServiceProvider serviceProvider)
+        {
+            _serviceProvider = serviceProvider;
+            _capOptions = serviceProvider.GetService<IOptions<CapOptions>>().Value;
+
+            _asteriskList = new ConcurrentDictionary<string, List<RegexExecuteDescriptor<ConsumerExecutorDescriptor>>>();
+            _poundList = new ConcurrentDictionary<string, List<RegexExecuteDescriptor<ConsumerExecutorDescriptor>>>();
+        }
+
+        public IReadOnlyList<ConsumerExecutorDescriptor> SelectCandidates()
+        {
+            var executorDescriptorList = new List<ConsumerExecutorDescriptor>();
+
+            executorDescriptorList.AddRange(FindConsumersFromInterfaceTypes(_serviceProvider));
+
+            executorDescriptorList.AddRange(FindConsumersFromControllerTypes());
+
+            return executorDescriptorList;
+        }
+
+        public ConsumerExecutorDescriptor SelectBestCandidate(string key, IReadOnlyList<ConsumerExecutorDescriptor> executeDescriptor)
+        {
+            var result = MatchUsingName(key, executeDescriptor);
+            if (result != null)
+            {
+                return result;
+            }
+
+            //[*] match with regex, i.e.  foo.*.abc
+            result = MatchAsteriskUsingRegex(key, executeDescriptor);
+            if (result != null)
+            {
+                return result;
+            }
+
+            //[#] match regex, i.e. foo.#
+            result = MatchPoundUsingRegex(key, executeDescriptor);
+            return result;
+        }
+
+        protected virtual IEnumerable<ConsumerExecutorDescriptor> FindConsumersFromInterfaceTypes(
+            IServiceProvider provider)
+        {
+            var executorDescriptorList = new List<ConsumerExecutorDescriptor>();
+
+            var capSubscribeTypeInfo = typeof(ICapSubscribe).GetTypeInfo();
+
             foreach (var service in ServiceCollectionExtensions.ServiceCollection.Where(o => o.ImplementationType != null && o.ServiceType != null))
             {
                 var typeInfo = service.ImplementationType.GetTypeInfo();
                 if (!capSubscribeTypeInfo.IsAssignableFrom(typeInfo))
                 {
                     continue;
-                }
+                }
                 var serviceTypeInfo = service.ServiceType.GetTypeInfo();
 
                 executorDescriptorList.AddRange(GetTopicAttributesDescription(typeInfo, serviceTypeInfo));
             }
 
-            return executorDescriptorList;
-        }
-
-        protected virtual IEnumerable<ConsumerExecutorDescriptor> FindConsumersFromControllerTypes()
-        {
-            var executorDescriptorList = new List<ConsumerExecutorDescriptor>();
-
-            var types = Assembly.GetEntryAssembly().ExportedTypes;
-            foreach (var type in types)
-            {
-                var typeInfo = type.GetTypeInfo();
-                if (Helper.IsController(typeInfo))
-                {
-                    executorDescriptorList.AddRange(GetTopicAttributesDescription(typeInfo));
-                }
-            }
-
-            return executorDescriptorList;
-        }
-
-        protected IEnumerable<ConsumerExecutorDescriptor> GetTopicAttributesDescription(TypeInfo typeInfo, TypeInfo serviceTypeInfo = null)
-        {
-            foreach (var method in typeInfo.DeclaredMethods)
-            {
-                var topicAttr = method.GetCustomAttributes<TopicAttribute>(true);
-                var topicAttributes = topicAttr as IList<TopicAttribute> ?? topicAttr.ToList();
-
-                if (!topicAttributes.Any())
-                {
-                    continue;
-                }
-
-                foreach (var attr in topicAttributes)
-                {
-                    if (attr.Group == null)
-                    {
-                        attr.Group = _capOptions.DefaultGroup + "." + _capOptions.Version;
-                    }
-                    else
-                    {
-                        attr.Group = attr.Group + "." + _capOptions.Version;
-                    }
-
-                    yield return InitDescriptor(attr, method, typeInfo, serviceTypeInfo);
-                }
-            }
-        }
-
-        private static ConsumerExecutorDescriptor InitDescriptor(
-            TopicAttribute attr,
-            MethodInfo methodInfo,
+            return executorDescriptorList;
+        }
+
+        protected virtual IEnumerable<ConsumerExecutorDescriptor> FindConsumersFromControllerTypes()
+        {
+            var executorDescriptorList = new List<ConsumerExecutorDescriptor>();
+
+            var types = Assembly.GetEntryAssembly().ExportedTypes;
+            foreach (var type in types)
+            {
+                var typeInfo = type.GetTypeInfo();
+                if (Helper.IsController(typeInfo))
+                {
+                    executorDescriptorList.AddRange(GetTopicAttributesDescription(typeInfo));
+                }
+            }
+
+            return executorDescriptorList;
+        }
+
+        protected IEnumerable<ConsumerExecutorDescriptor> GetTopicAttributesDescription(TypeInfo typeInfo, TypeInfo serviceTypeInfo = null)
+        {
+            foreach (var method in typeInfo.DeclaredMethods)
+            {
+                var topicAttr = method.GetCustomAttributes<TopicAttribute>(true);
+                var topicAttributes = topicAttr as IList<TopicAttribute> ?? topicAttr.ToList();
+
+                if (!topicAttributes.Any())
+                {
+                    continue;
+                }
+
+                foreach (var attr in topicAttributes)
+                {
+                    if (attr.Group == null)
+                    {
+                        attr.Group = _capOptions.DefaultGroup + "." + _capOptions.Version;
+                    }
+                    else
+                    {
+                        attr.Group = attr.Group + "." + _capOptions.Version;
+                    }
+
+                    yield return InitDescriptor(attr, method, typeInfo, serviceTypeInfo);
+                }
+            }
+        }
+
+        private static ConsumerExecutorDescriptor InitDescriptor(
+            TopicAttribute attr,
+            MethodInfo methodInfo,
             TypeInfo implType,
-            TypeInfo serviceTypeInfo)
-        {
-            var descriptor = new ConsumerExecutorDescriptor
-            {
-                Attribute = attr,
-                MethodInfo = methodInfo,
+            TypeInfo serviceTypeInfo)
+        {
+            var descriptor = new ConsumerExecutorDescriptor
+            {
+                Attribute = attr,
+                MethodInfo = methodInfo,
                 ImplTypeInfo = implType,
-                ServiceTypeInfo = serviceTypeInfo
-            };
-
-            return descriptor;
-        }
-
-        private ConsumerExecutorDescriptor MatchUsingName(string key, IReadOnlyList<ConsumerExecutorDescriptor> executeDescriptor)
-        {
-            return executeDescriptor.FirstOrDefault(x => x.Attribute.Name == key);
-        }
-
-        private ConsumerExecutorDescriptor MatchAsteriskUsingRegex(string key, IReadOnlyList<ConsumerExecutorDescriptor> executeDescriptor)
-        {
-            var group = executeDescriptor.First().Attribute.Group;
-            if (!_asteriskList.TryGetValue(group, out var tmpList))
-            {
-                tmpList = executeDescriptor.Where(x => x.Attribute.Name.IndexOf('*') >= 0)
-                    .Select(x => new RegexExecuteDescriptor<ConsumerExecutorDescriptor>
-                    {
-                        Name = ("^" + x.Attribute.Name + "$").Replace("*", "[0-9_a-zA-Z]+").Replace(".", "\\."),
-                        Descriptor = x
-                    }).ToList();
-                _asteriskList.TryAdd(group, tmpList);
-            }
-
-            foreach (var red in tmpList)
-            {
-                if (Regex.IsMatch(key, red.Name, RegexOptions.Singleline))
-                {
-                    return red.Descriptor;
-                }
-            }
-
-            return null;
-        }
-
-        private ConsumerExecutorDescriptor MatchPoundUsingRegex(string key, IReadOnlyList<ConsumerExecutorDescriptor> executeDescriptor)
-        {
-            var group = executeDescriptor.First().Attribute.Group;
-            if (!_poundList.TryGetValue(group, out var tmpList))
-            {
-                tmpList = executeDescriptor
-                    .Where(x => x.Attribute.Name.IndexOf('#') >= 0)
-                    .Select(x => new RegexExecuteDescriptor<ConsumerExecutorDescriptor>
-                    {
-                        Name = ("^" + x.Attribute.Name + "$").Replace("#", "[0-9_a-zA-Z\\.]+"),
-                        Descriptor = x
-                    }).ToList();
-                _poundList.TryAdd(group, tmpList);
-            }
-
-            foreach (var red in tmpList)
-            {
-                if (Regex.IsMatch(key, red.Name, RegexOptions.Singleline))
-                {
-                    return red.Descriptor;
-                }
-            }
-
-            return null;
-        }
-
-
-        private class RegexExecuteDescriptor<T>
-        {
-            public string Name { get; set; }
-
-            public T Descriptor { get; set; }
-        }
-    }
+                ServiceTypeInfo = serviceTypeInfo
+            };
+
+            return descriptor;
+        }
+
+        private ConsumerExecutorDescriptor MatchUsingName(string key, IReadOnlyList<ConsumerExecutorDescriptor> executeDescriptor)
+        {
+            return executeDescriptor.FirstOrDefault(x => x.Attribute.Name == key);
+        }
+
+        private ConsumerExecutorDescriptor MatchAsteriskUsingRegex(string key, IReadOnlyList<ConsumerExecutorDescriptor> executeDescriptor)
+        {
+            var group = executeDescriptor.First().Attribute.Group;
+            if (!_asteriskList.TryGetValue(group, out var tmpList))
+            {
+                tmpList = executeDescriptor.Where(x => x.Attribute.Name.IndexOf('*') >= 0)
+                    .Select(x => new RegexExecuteDescriptor<ConsumerExecutorDescriptor>
+                    {
+                        Name = ("^" + x.Attribute.Name + "$").Replace("*", "[0-9_a-zA-Z]+").Replace(".", "\\."),
+                        Descriptor = x
+                    }).ToList();
+                _asteriskList.TryAdd(group, tmpList);
+            }
+
+            foreach (var red in tmpList)
+            {
+                if (Regex.IsMatch(key, red.Name, RegexOptions.Singleline))
+                {
+                    return red.Descriptor;
+                }
+            }
+
+            return null;
+        }
+
+        private ConsumerExecutorDescriptor MatchPoundUsingRegex(string key, IReadOnlyList<ConsumerExecutorDescriptor> executeDescriptor)
+        {
+            var group = executeDescriptor.First().Attribute.Group;
+            if (!_poundList.TryGetValue(group, out var tmpList))
+            {
+                tmpList = executeDescriptor
+                    .Where(x => x.Attribute.Name.IndexOf('#') >= 0)
+                    .Select(x => new RegexExecuteDescriptor<ConsumerExecutorDescriptor>
+                    {
+                        Name = ("^" + x.Attribute.Name + "$").Replace("#", "[0-9_a-zA-Z\\.]+"),
+                        Descriptor = x
+                    }).ToList();
+                _poundList.TryAdd(group, tmpList);
+            }
+
+            foreach (var red in tmpList)
+            {
+                if (Regex.IsMatch(key, red.Name, RegexOptions.Singleline))
+                {
+                    return red.Descriptor;
+                }
+            }
+
+            return null;
+        }
+
+
+        private class RegexExecuteDescriptor<T>
+        {
+            public string Name { get; set; }
+
+            public T Descriptor { get; set; }
+        }
+    }
 }
\ No newline at end of file

src/DotNetCore.CAP/IPublishMessageSender.Base.cs

@@ -11,6 +11,7 @@ using DotNetCore.CAP.Models;
 using DotNetCore.CAP.Processor;
 using DotNetCore.CAP.Processor.States;
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 
 namespace DotNetCore.CAP
 {
@@ -21,7 +22,7 @@ namespace DotNetCore.CAP
         private readonly CapOptions _options;
         private readonly IStateChanger _stateChanger;
 
-        protected string ServersAddress { get; set; }
+        protected abstract string ServersAddress { get; }
 
         // diagnostics listener
         // ReSharper disable once InconsistentNaming
@@ -30,11 +31,11 @@ namespace DotNetCore.CAP
 
         protected BasePublishMessageSender(
             ILogger logger,
-            CapOptions options,
+            IOptions<CapOptions> options,
             IStorageConnection connection,
             IStateChanger stateChanger)
         {
-            _options = options;
+            _options = options.Value;
             _connection = connection;
             _stateChanger = stateChanger;
             _logger = logger;

src/DotNetCore.CAP/ISubscribeExecutor.Default.cs

@@ -11,6 +11,7 @@ using DotNetCore.CAP.Models;
 using DotNetCore.CAP.Processor;
 using DotNetCore.CAP.Processor.States;
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 
 namespace DotNetCore.CAP
 {
@@ -30,7 +31,7 @@ namespace DotNetCore.CAP
 
         public DefaultSubscriberExecutor(
             ILogger<DefaultSubscriberExecutor> logger,
-            CapOptions options,
+            IOptions<CapOptions> options,
             IConsumerInvokerFactory consumerInvokerFactory,
             ICallbackMessageSender callbackMessageSender,
             IStateChanger stateChanger,
@@ -39,7 +40,7 @@ namespace DotNetCore.CAP
         {
             _selector = selector;
             _callbackMessageSender = callbackMessageSender;
-            _options = options;
+            _options = options.Value;
             _stateChanger = stateChanger;
             _connection = connection;
             _logger = logger;

src/DotNetCore.CAP/Processor/IProcessingServer.Cap.cs

@@ -94,7 +94,7 @@ namespace DotNetCore.CAP.Processor
             var returnedProcessors = new List<IProcessor>
             {
                 _provider.GetRequiredService<TransportCheckProcessor>(),
-                _provider.GetRequiredService<NeedRetryMessageProcessor>(),
+                _provider.GetRequiredService<MessageNeedToRetryProcessor>(),
                 _provider.GetRequiredService<ICollectProcessor>()
             };
 

src/DotNetCore.CAP/Processor/IProcessor.NeedRetry.cs

@@ -7,27 +7,28 @@ using System.Linq;
 using System.Threading.Tasks;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 
 namespace DotNetCore.CAP.Processor
 {
-    public class NeedRetryMessageProcessor : IProcessor
+    public class MessageNeedToRetryProcessor : IProcessor
     {
         private readonly TimeSpan _delay = TimeSpan.FromSeconds(1);
-        private readonly ILogger<NeedRetryMessageProcessor> _logger;
+        private readonly ILogger<MessageNeedToRetryProcessor> _logger;
         private readonly IPublishMessageSender _publishMessageSender;
         private readonly ISubscriberExecutor _subscriberExecutor;
         private readonly TimeSpan _waitingInterval;
 
-        public NeedRetryMessageProcessor(
-            CapOptions options,
-            ILogger<NeedRetryMessageProcessor> logger,
+        public MessageNeedToRetryProcessor(
+            IOptions<CapOptions> options,
+            ILogger<MessageNeedToRetryProcessor> logger,
             ISubscriberExecutor subscriberExecutor,
             IPublishMessageSender publishMessageSender)
         {
             _logger = logger;
             _subscriberExecutor = subscriberExecutor;
             _publishMessageSender = publishMessageSender;
-            _waitingInterval = TimeSpan.FromSeconds(options.FailedRetryInterval);
+            _waitingInterval = TimeSpan.FromSeconds(options.Value.FailedRetryInterval);
         }
 
         public async Task ProcessAsync(ProcessingContext context)

src/DotNetCore.CAP/Internal/SubscriberNotFoundException.cs → src/DotNetCore.CAP/SubscriberNotFoundException.cs

@@ -3,7 +3,7 @@
 
 using System;
 
-namespace DotNetCore.CAP.Internal
+namespace DotNetCore.CAP
 {
     public class SubscriberNotFoundException : Exception
     {

test/DotNetCore.CAP.CastleCoreTest/ConsumerServiceSelectorTest.cs

-using Castle.DynamicProxy;
-using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.DependencyInjection.Extensions;
-using System;
-using Xunit;
-
-namespace DotNetCore.CAP.CastleDynamicProxyTest
-{
-    public class ConsumerServiceSelectorTest
-    {
-        private IServiceProvider _provider;
-
-        public ConsumerServiceSelectorTest()
-        {
-            var services = new ServiceCollection();
-            
-            services.AddSingleton(typeof(ICapSubscribe), f =>
-            {
-                var generator = new ProxyGenerator();
-                return generator.CreateClassProxy(typeof(TestSubscribeClass));
-            });
-
-            services.AddSingleton<ITestSubscribeClass, TestSubscribeClass>();
-
-            services.AddLogging();
-
-            services.TryAddSingleton<IConsumerServiceSelector, CastleCoreConsumerServiceSelector>();
-
-            services.AddCap(x => { });
-
-            _provider = services.BuildServiceProvider();
-        }
-
-        [Theory]
-        [InlineData("cap.castle.sub")]
-        public void CanFindCapSubscribeTopic(string topic)
-        {
-            var selector = _provider.GetRequiredService<IConsumerServiceSelector>();
-
-            var candidates = selector.SelectCandidates();
-            Assert.Equal(1, candidates.Count);
-        }
-    }
-
-    public interface ITestSubscribeClass
-    {
-
-    }
-
-    public class TestSubscribeClass : ITestSubscribeClass, ICapSubscribe
-    {
-        [CapSubscribe("cap.castle.sub")]
-        public void TestSubscribe(DateTime dateTime)
-        {
-            Console.WriteLine(dateTime);
-        }
-    }
-}

test/DotNetCore.CAP.CastleCoreTest/DotNetCore.CAP.CastleCoreTest.csproj

-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
-
-    <IsPackable>false</IsPackable>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <PackageReference Include="Castle.Core" Version="4.4.0" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="2.2.0" />
-    <PackageReference Include="Microsoft.Extensions.Logging" Version="2.2.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.0.1" />
-    <PackageReference Include="xunit" Version="2.4.1" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1">
-      <PrivateAssets>all</PrivateAssets>
-      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
-    </PackageReference>
-  </ItemGroup>
-
-  <ItemGroup>
-    <ProjectReference Include="..\..\src\DotNetCore.CAP\DotNetCore.CAP.csproj" />
-  </ItemGroup>
-
-</Project>

test/DotNetCore.CAP.CastleCoreTest/IConsumerServiceSelector.CastleCore.cs

-using Castle.Core;
-using Castle.DynamicProxy;
-using DotNetCore.CAP.Infrastructure;
-using Microsoft.Extensions.DependencyInjection;
-using System;
-using System.Collections.Generic;
-using System.Reflection;
-
-namespace DotNetCore.CAP.CastleDynamicProxyTest
-{
-    public class CastleCoreConsumerServiceSelector : DefaultConsumerServiceSelector
-    {
-        public CastleCoreConsumerServiceSelector(IServiceProvider serviceProvider, CapOptions capOptions) 
-            : base(serviceProvider, capOptions)
-        {
-
-        }
-
-        protected override IEnumerable<ConsumerExecutorDescriptor> FindConsumersFromInterfaceTypes(IServiceProvider provider)
-        {
-            var executorDescriptorList = new List<ConsumerExecutorDescriptor>();
-
-            using (var scoped = provider.CreateScope())
-            {
-                var scopedProvider = scoped.ServiceProvider;
-                var consumerServices = scopedProvider.GetServices<ICapSubscribe>();
-                foreach (var service in consumerServices)
-                {
-                    var serviceType = service.GetType();
-                    // Castle dynamic proxy...
-                    TypeInfo typeInfo = ProxyServices.IsDynamicProxy(serviceType) ? ProxyUtil.GetUnproxiedType(service).GetTypeInfo()
-                        : serviceType.GetTypeInfo();
-
-                    if (!typeof(ICapSubscribe).GetTypeInfo().IsAssignableFrom(typeInfo))
-                    {
-                        continue;
-                    }
-
-                    executorDescriptorList.AddRange(GetTopicAttributesDescription(typeInfo));
-                }
-
-                return executorDescriptorList;
-            }
-        }
-    }
-}

test/DotNetCore.CAP.MongoDB.Test/DatabaseTestHost.cs

 using System;
 using System.Threading;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
 using MongoDB.Driver;
 
 namespace DotNetCore.CAP.MongoDB.Test
@@ -11,9 +12,9 @@ namespace DotNetCore.CAP.MongoDB.Test
 
         protected IServiceProvider Provider { get; private set; }
         protected IMongoClient MongoClient => Provider.GetService<IMongoClient>();
-        protected IMongoDatabase Database => MongoClient.GetDatabase(MongoDBOptions.DatabaseName);
-        protected CapOptions CapOptions => Provider.GetService<CapOptions>();
-        protected MongoDBOptions MongoDBOptions => Provider.GetService<MongoDBOptions>();
+        protected IMongoDatabase Database => MongoClient.GetDatabase(MongoDBOptions.Value.DatabaseName);
+        protected CapOptions CapOptions => Provider.GetService<IOptions<CapOptions>>().Value;
+        protected IOptions<MongoDBOptions> MongoDBOptions => Provider.GetService<IOptions<MongoDBOptions>>();
 
         protected DatabaseTestHost()
         {
@@ -37,9 +38,9 @@ namespace DotNetCore.CAP.MongoDB.Test
             services.AddOptions();
             services.AddLogging();
             _connectionString = ConnectionUtil.ConnectionString;
-
-            services.AddSingleton(new MongoDBOptions() { DatabaseConnection = _connectionString });
-            services.AddSingleton(new CapOptions());
+            services.AddOptions<CapOptions>();
+            services.Configure<MongoDBOptions>(x => x.DatabaseConnection = _connectionString);
+           
             services.AddSingleton<IMongoClient>(x => new MongoClient(_connectionString));
             services.AddSingleton<MongoDBStorage>();
 
@@ -49,7 +50,7 @@ namespace DotNetCore.CAP.MongoDB.Test
 
         public void Dispose()
         {
-            MongoClient.DropDatabase(MongoDBOptions.DatabaseName);
+            MongoClient.DropDatabase(MongoDBOptions.Value.DatabaseName);
         }
     }
 }
\ No newline at end of file

test/DotNetCore.CAP.MongoDB.Test/MongoDBMonitoringApiTest.cs

@@ -17,7 +17,7 @@ namespace DotNetCore.CAP.MongoDB.Test
         {
             _api = new MongoDBMonitoringApi(MongoClient, MongoDBOptions);
 
-            var collection = Database.GetCollection<PublishedMessage>(MongoDBOptions.PublishedCollection);
+            var collection = Database.GetCollection<PublishedMessage>(MongoDBOptions.Value.PublishedCollection);
             collection.InsertMany(new[]
             {
                 new PublishedMessage

test/DotNetCore.CAP.MongoDB.Test/MongoDBStorageConnectionTest.cs

@@ -38,7 +38,7 @@ namespace DotNetCore.CAP.MongoDB.Test
         public void ChangeReceivedState_Test()
         {
             StoreReceivedMessageAsync_TestAsync();
-            var collection = Database.GetCollection<ReceivedMessage>(MongoDBOptions.ReceivedCollection);
+            var collection = Database.GetCollection<ReceivedMessage>(MongoDBOptions.Value.ReceivedCollection);
 
             var msg = collection.Find(x => true).FirstOrDefault();
             _connection.ChangeReceivedState(msg.Id, StatusName.Scheduled).Should().BeTrue();
@@ -64,7 +64,7 @@ namespace DotNetCore.CAP.MongoDB.Test
             };
             _connection.StoreReceivedMessage(msg);
 
-            var collection = Database.GetCollection<ReceivedMessage>(MongoDBOptions.ReceivedCollection);
+            var collection = Database.GetCollection<ReceivedMessage>(MongoDBOptions.Value.ReceivedCollection);
 
             var updateDef = Builders<ReceivedMessage>
                 .Update.Set(x => x.Added, DateTime.Now.AddMinutes(-5));

test/DotNetCore.CAP.MongoDB.Test/MongoDBStorageTest.cs

@@ -11,11 +11,11 @@ namespace DotNetCore.CAP.MongoDB.Test
         public void InitializeAsync_Test()
         {
             var names = MongoClient.ListDatabaseNames()?.ToList();
-            names.Should().Contain(MongoDBOptions.DatabaseName);
+            names.Should().Contain(MongoDBOptions.Value.DatabaseName);
 
             var collections = Database.ListCollectionNames()?.ToList();
-            collections.Should().Contain(MongoDBOptions.PublishedCollection);
-            collections.Should().Contain(MongoDBOptions.ReceivedCollection);
+            collections.Should().Contain(MongoDBOptions.Value.PublishedCollection);
+            collections.Should().Contain(MongoDBOptions.Value.ReceivedCollection);
         }
     }
 }
\ No newline at end of file

test/DotNetCore.CAP.MySql.Test/MySqlStorageConnectionTest.cs

@@ -3,6 +3,7 @@ using System.Threading.Tasks;
 using Dapper;
 using DotNetCore.CAP.Infrastructure;
 using DotNetCore.CAP.Models;
+using Microsoft.Extensions.Options;
 using Xunit;
 
 namespace DotNetCore.CAP.MySql.Test
@@ -14,8 +15,8 @@ namespace DotNetCore.CAP.MySql.Test
 
         public MySqlStorageConnectionTest()
         {
-            var options = GetService<MySqlOptions>();
-            var capOptions = GetService<CapOptions>();
+            var options = GetService<IOptions<MySqlOptions>>();
+            var capOptions = GetService<IOptions<CapOptions>>();
             _storage = new MySqlStorageConnection(options, capOptions);
         }
 

test/DotNetCore.CAP.MySql.Test/TestHost.cs

@@ -28,8 +28,9 @@ namespace DotNetCore.CAP.MySql.Test
             services.AddLogging();
 
             _connectionString = ConnectionUtil.GetConnectionString();
-            services.AddSingleton(new MySqlOptions { ConnectionString = _connectionString });
-            services.AddSingleton(new CapOptions());
+            services.AddOptions<CapOptions>();
+            services.Configure<MySqlOptions>(x => x.ConnectionString = _connectionString);
+            
             services.AddSingleton<MySqlStorage>();
 
             _services = services;

test/DotNetCore.CAP.PostgreSql.Test/PostgreSqlStorageConnectionTest.cs

@@ -3,6 +3,7 @@ using System.Threading.Tasks;
 using Dapper;
 using DotNetCore.CAP.Infrastructure;
 using DotNetCore.CAP.Models;
+using Microsoft.Extensions.Options;
 using Xunit;
 
 namespace DotNetCore.CAP.PostgreSql.Test
@@ -14,9 +15,9 @@ namespace DotNetCore.CAP.PostgreSql.Test
 
         public PostgreSqlStorageConnectionTest()
         {
-            var options = GetService<PostgreSqlOptions>();
-            var capOptions = GetService<CapOptions>();
-            _storage = new PostgreSqlStorageConnection(options,capOptions);
+            var options = GetService<IOptions<PostgreSqlOptions>>();
+            var capOptions = GetService<IOptions<CapOptions>>();
+            _storage = new PostgreSqlStorageConnection(options, capOptions);
         }
 
         [Fact]
@@ -74,13 +75,13 @@ namespace DotNetCore.CAP.PostgreSql.Test
             var insertedId = SnowflakeId.Default().NextId();
             var receivedMessage = new CapReceivedMessage
             {
-                Id= insertedId,
+                Id = insertedId,
                 Name = "PostgreSqlStorageConnectionTest",
                 Content = "",
                 Group = "mygroup",
                 StatusName = StatusName.Scheduled
             };
-           
+
             using (var connection = ConnectionUtil.CreateConnection())
             {
                 await connection.ExecuteAsync(sql, receivedMessage);

test/DotNetCore.CAP.PostgreSql.Test/TestHost.cs

@@ -28,8 +28,9 @@ namespace DotNetCore.CAP.PostgreSql.Test
             services.AddLogging();
 
             _connectionString = ConnectionUtil.GetConnectionString();
-            services.AddSingleton(new PostgreSqlOptions { ConnectionString = _connectionString });
-            services.AddSingleton(new CapOptions());
+
+            services.AddOptions<CapOptions>();
+            services.Configure<PostgreSqlOptions>(x => x.ConnectionString = _connectionString);
             services.AddSingleton<PostgreSqlStorage>();
 
             _services = services;

test/DotNetCore.CAP.SqlServer.Test/DatabaseTestHost.cs

@@ -4,6 +4,7 @@ using System.Data.SqlClient;
 using Dapper;
 using DotNetCore.CAP.SqlServer.Diagnostics;
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 using Moq;
 
 namespace DotNetCore.CAP.SqlServer.Test
@@ -11,8 +12,8 @@ namespace DotNetCore.CAP.SqlServer.Test
     public abstract class DatabaseTestHost : IDisposable
     {
         protected ILogger<SqlServerStorage> Logger;
-        protected CapOptions CapOptions;
-        protected SqlServerOptions SqlSeverOptions;
+        protected IOptions<CapOptions> CapOptions;
+        protected IOptions<SqlServerOptions> SqlSeverOptions;
         protected DiagnosticProcessorObserver DiagnosticProcessorObserver;
 
         public bool SqlObjectInstalled;
@@ -20,11 +21,14 @@ namespace DotNetCore.CAP.SqlServer.Test
         protected DatabaseTestHost()
         {
             Logger = new Mock<ILogger<SqlServerStorage>>().Object;
-            CapOptions = new Mock<CapOptions>().Object;
-            SqlSeverOptions = new SqlServerOptions()
-            {
-                ConnectionString = ConnectionUtil.GetConnectionString()
-            };
+
+            var capOptions = new Mock<IOptions<CapOptions>>();
+            capOptions.Setup(x => x.Value).Returns(new CapOptions());
+            CapOptions = capOptions.Object;
+
+            var options = new Mock<IOptions<SqlServerOptions>>();
+            options.Setup(x => x.Value).Returns(new SqlServerOptions { ConnectionString = ConnectionUtil.GetConnectionString() });
+            SqlSeverOptions = options.Object;
 
             DiagnosticProcessorObserver = new DiagnosticProcessorObserver(new Mock<IDispatcher>().Object);
 

test/DotNetCore.CAP.SqlServer.Test/SqlServerStorageConnectionTest.cs

@@ -14,7 +14,7 @@ namespace DotNetCore.CAP.SqlServer.Test
 
         public SqlServerStorageConnectionTest()
         {
-            _storage = new SqlServerStorageConnection(SqlSeverOptions, CapOptions);
+            _storage = new SqlServerStorageConnection(SqlSeverOptions.Value, CapOptions.Value);
         }
 
         [Fact]

test/DotNetCore.CAP.Test/CAP.BuilderTest.cs

@@ -4,6 +4,7 @@ using System.Threading.Tasks;
 using DotNetCore.CAP.Abstractions;
 using DotNetCore.CAP.Models;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
 using Xunit;
 
 namespace DotNetCore.CAP.Test
@@ -81,7 +82,7 @@ namespace DotNetCore.CAP.Test
             var services = new ServiceCollection();
             services.AddCap(x => { });
             var builder = services.BuildServiceProvider();
-            var capOptions = builder.GetService<CapOptions>();
+            var capOptions = builder.GetService<IOptions<CapOptions>>().Value;
             Assert.NotNull(capOptions);
         }
 

test/DotNetCore.CAP.Test/ConsumerServiceSelectorTest.cs

 using System;
 using System.Threading.Tasks;
 using DotNetCore.CAP.Abstractions;
-using DotNetCore.CAP.Internal;
 using Microsoft.Extensions.DependencyInjection;
 using Xunit;
 

test/DotNetCore.CAP.Test/CustomConsumerSubscribeTest.cs

@@ -4,6 +4,7 @@ using System.Linq;
 using System.Reflection;
 using System.Threading.Tasks;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
 using Xunit;
 
 namespace DotNetCore.CAP.Test
@@ -48,10 +49,10 @@ namespace DotNetCore.CAP.Test
     {
         private readonly CapOptions _capOptions;
 
-        public MyConsumerServiceSelector(IServiceProvider serviceProvider, CapOptions capOptions)
-            : base(serviceProvider, capOptions)
+        public MyConsumerServiceSelector(IServiceProvider serviceProvider)
+            : base(serviceProvider)
         {
-            _capOptions = capOptions;
+            _capOptions = serviceProvider.GetService<IOptions<CapOptions>>().Value;
         }
 
         protected override IEnumerable<ConsumerExecutorDescriptor> FindConsumersFromInterfaceTypes(IServiceProvider provider)