Refactoring

src/DotNetCore.CAP/ISubscribeExecutor.Default.cs

@@ -164,7 +164,7 @@ namespace DotNetCore.CAP
             if (!_selector.TryGetTopicExector(receivedMessage.Name, receivedMessage.Group,
                 out var executor))
             {
-                var error = $"message can not be found subscriber, Message:{receivedMessage},\r\n see: https://github.com/dotnetcore/CAP/issues/63";
+                var error = $"Message can not be found subscriber. {receivedMessage} \r\n see: https://github.com/dotnetcore/CAP/issues/63";
                 throw new SubscriberNotFoundException(error);
             }
 

src/DotNetCore.CAP/Infrastructure/Helper.cs

@@ -4,7 +4,6 @@
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
-using System.Linq;
 using System.Reflection;
 using DotNetCore.CAP.Diagnostics;
 using Newtonsoft.Json;

src/DotNetCore.CAP/Infrastructure/SnowflakeId.cs

@@ -2,6 +2,7 @@
 // An object that generates IDs. This is broken into a separate class in case we ever want to support multiple worker threads per process
 
 using System;
+using System.Threading;
 
 namespace DotNetCore.CAP.Infrastructure
 {
@@ -49,7 +50,7 @@ namespace DotNetCore.CAP.Infrastructure
         {
             lock (s_lock)
             {
-                return _snowflakeId ?? (_snowflakeId = new SnowflakeId(AppDomain.CurrentDomain.Id, datacenterId));
+                return _snowflakeId ?? (_snowflakeId = new SnowflakeId(Thread.CurrentThread.ManagedThreadId, datacenterId));
             }
         }