Refactor IBootService

src/SkyWalking.Abstractions/Boot/IBootService.cs

@@ -24,6 +24,8 @@ namespace SkyWalking.Boot
 {
     public interface IBootService : IDisposable
     {
+        int Order { get; }
+        
         Task Initialize(CancellationToken token);
     }
 }
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src/SkyWalking.Core/Boot/ServiceManager.cs

@@ -58,13 +58,10 @@ namespace SkyWalking.Boot
         public async Task Initialize()
         {
             var types = FindServiceTypes();
-            foreach (var type in types)
-            {
-                if (Activator.CreateInstance(type) is IBootService service)
+            foreach (var service in types.Select(Activator.CreateInstance).OfType<IBootService>().OrderBy(x => x.Order))
             {
                 await service.Initialize(_tokenSource.Token);
-                    _services.Add(type, service);
-                }
+                _services.Add(service.GetType(), service);
             }
         }
 

src/SkyWalking.Core/Boot/TimerService.cs

@@ -31,6 +31,8 @@ namespace SkyWalking.Boot
         {
         }
 
+        public virtual int Order { get; } = 2;
+
         public async Task Initialize(CancellationToken token)
         {
             await Initializing(token);

src/SkyWalking.Core/Sampling/SamplingService.cs

@@ -37,6 +37,8 @@ namespace SkyWalking.Sampling
         {
         }
 
+        public int Order { get; } = 1;
+
         public Task Initialize(CancellationToken token)
         {
             return Task.CompletedTask;

src/SkyWalking.Core/SkyWalking.Core.csproj

@@ -14,7 +14,4 @@
   <ItemGroup>
     <ProjectReference Include="..\SkyWalking.Abstractions\SkyWalking.Abstractions.csproj" />
   </ItemGroup>
-  <ItemGroup>
-    <Folder Include="Remote" />
-  </ItemGroup>
 </Project>
\ No newline at end of file