Start/stop background jobs on application initialization/shutdown

framework/Volo.Abp.sln

@@ -194,9 +194,11 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Volo.Abp.AspNetCore.Mvc.UI.
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Volo.Abp.EntityFrameworkCore.MySQL", "src\Volo.Abp.EntityFrameworkCore.MySQL\Volo.Abp.EntityFrameworkCore.MySQL.csproj", "{27C120C9-F618-4C1D-B959-8D0B048D0835}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Volo.Abp.BackgroundJobs", "src\Volo.Abp.BackgroundJobs\Volo.Abp.BackgroundJobs.csproj", "{E6E0BBB5-48A7-4FDA-8A47-8B308BCD36AD}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Volo.Abp.BackgroundJobs", "src\Volo.Abp.BackgroundJobs\Volo.Abp.BackgroundJobs.csproj", "{E6E0BBB5-48A7-4FDA-8A47-8B308BCD36AD}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Volo.Abp.BackgroundWorkers", "src\Volo.Abp.BackgroundWorkers\Volo.Abp.BackgroundWorkers.csproj", "{6C3E76B8-C4DA-4E74-9F8B-A8BC4C831722}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Volo.Abp.BackgroundWorkers", "src\Volo.Abp.BackgroundWorkers\Volo.Abp.BackgroundWorkers.csproj", "{6C3E76B8-C4DA-4E74-9F8B-A8BC4C831722}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Volo.Abp.BackgroundJobs.Tests", "test\Volo.Abp.BackgroundJobs.Tests\Volo.Abp.BackgroundJobs.Tests.csproj", "{D86548EA-7047-4623-8824-F6285CD254AA}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -556,6 +558,10 @@ Global
 		{6C3E76B8-C4DA-4E74-9F8B-A8BC4C831722}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{6C3E76B8-C4DA-4E74-9F8B-A8BC4C831722}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{6C3E76B8-C4DA-4E74-9F8B-A8BC4C831722}.Release|Any CPU.Build.0 = Release|Any CPU
+		{D86548EA-7047-4623-8824-F6285CD254AA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D86548EA-7047-4623-8824-F6285CD254AA}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D86548EA-7047-4623-8824-F6285CD254AA}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D86548EA-7047-4623-8824-F6285CD254AA}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -651,6 +657,7 @@ Global
 		{27C120C9-F618-4C1D-B959-8D0B048D0835} = {5DF0E140-0513-4D0D-BE2E-3D4D85CD70E6}
 		{E6E0BBB5-48A7-4FDA-8A47-8B308BCD36AD} = {5DF0E140-0513-4D0D-BE2E-3D4D85CD70E6}
 		{6C3E76B8-C4DA-4E74-9F8B-A8BC4C831722} = {5DF0E140-0513-4D0D-BE2E-3D4D85CD70E6}
+		{D86548EA-7047-4623-8824-F6285CD254AA} = {447C8A77-E5F0-4538-8687-7383196D04EA}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {BB97ECF4-9A84-433F-A80B-2A3285BDD1D5}

framework/src/Volo.Abp.BackgroundJobs/Volo/Abp/BackgroundJobs/AbpBackgroundJobsModule.cs

@@ -1,4 +1,5 @@
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
 using Volo.Abp.BackgroundWorkers;
 using Volo.Abp.Guids;
 using Volo.Abp.Json;
@@ -19,5 +20,19 @@ namespace Volo.Abp.BackgroundJobs
         {
             context.Services.AddAssemblyOf<AbpBackgroundJobsModule>();
         }
+
+        public override void OnApplicationInitialization(ApplicationInitializationContext context)
+        {
+            var options = context.ServiceProvider.GetRequiredService<IOptions<BackgroundJobOptions>>().Value;
+            if (options.IsJobExecutionEnabled)
+            {
+                context.ServiceProvider
+                    .GetRequiredService<IBackgroundWorkerManager>()
+                    .Add(
+                        context.ServiceProvider
+                            .GetRequiredService<IBackgroundJobManager>()
+                    );
+            }
+        }
     }
 }

framework/src/Volo.Abp.BackgroundJobs/Volo/Abp/BackgroundJobs/BackgroundJobManager.cs

@@ -3,7 +3,6 @@ using System.Diagnostics;
 using System.Threading.Tasks;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
-using Microsoft.Extensions.Logging.Abstractions;
 using Volo.Abp.BackgroundWorkers;
 using Volo.Abp.DependencyInjection;
 using Volo.Abp.Guids;

framework/src/Volo.Abp.BackgroundWorkers/Volo/Abp/BackgroundWorkers/AbpBackgroundWorkersModule.cs

@@ -1,4 +1,5 @@
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
 using Volo.Abp.Modularity;
 using Volo.Abp.Threading;
 
@@ -13,5 +14,27 @@ namespace Volo.Abp.BackgroundWorkers
         {
             context.Services.AddAssemblyOf<AbpBackgroundWorkersModule>();
         }
+
+        public override void OnApplicationInitialization(ApplicationInitializationContext context)
+        {
+            var options = context.ServiceProvider.GetRequiredService<IOptions<BackgroundWorkerOptions>>().Value;
+            if (options.IsEnabled)
+            {
+                context.ServiceProvider
+                    .GetRequiredService<IBackgroundWorkerManager>()
+                    .Start();
+            }
+        }
+
+        public override void OnApplicationShutdown(ApplicationShutdownContext context)
+        {
+            var options = context.ServiceProvider.GetRequiredService<IOptions<BackgroundWorkerOptions>>().Value;
+            if (options.IsEnabled)
+            {
+                context.ServiceProvider
+                    .GetRequiredService<IBackgroundWorkerManager>()
+                    .StopAndWaitToStop();
+            }
+        }
     }
 }

framework/src/Volo.Abp.BackgroundWorkers/Volo/Abp/BackgroundWorkers/BackgroundWorkerOptions.cs

@@ -0,0 +1,7 @@
+namespace Volo.Abp.BackgroundWorkers
+{
+    public class BackgroundWorkerOptions
+    {
+        public bool IsEnabled { get; set; }
+    }
+}

framework/src/Volo.Abp.Core/Volo/Abp/AbpApplicationBase.cs

@@ -46,9 +46,12 @@ namespace Volo.Abp
 
         public virtual void Shutdown()
         {
-            ServiceProvider
-                .GetRequiredService<IModuleManager>()
-                .ShutdownModules(new ApplicationShutdownContext());
+            using (var scope = ServiceProvider.CreateScope())
+            {
+                scope.ServiceProvider
+                    .GetRequiredService<IModuleManager>()
+                    .ShutdownModules(new ApplicationShutdownContext(scope.ServiceProvider));
+            }
         }
 
         public virtual void Dispose()
@@ -66,7 +69,7 @@ namespace Volo.Abp
         {
             using (var scope = ServiceProvider.CreateScope())
             {
-                ServiceProvider
+                scope.ServiceProvider
                     .GetRequiredService<IModuleManager>()
                     .InitializeModules(new ApplicationInitializationContext(scope.ServiceProvider));
             }

framework/src/Volo.Abp.Core/Volo/Abp/ApplicationShutdownContext.cs

@@ -1,7 +1,17 @@
-namespace Volo.Abp
+using System;
+using JetBrains.Annotations;
+
+namespace Volo.Abp
 {
     public class ApplicationShutdownContext
     {
+        public IServiceProvider ServiceProvider { get; }
+
+        public ApplicationShutdownContext([NotNull] IServiceProvider serviceProvider)
+        {
+            Check.NotNull(serviceProvider, nameof(serviceProvider));
 
+            ServiceProvider = serviceProvider;
+        }
     }
 }

framework/test/Volo.Abp.BackgroundJobs.Tests/Volo.Abp.BackgroundJobs.Tests.csproj

@@ -0,0 +1,20 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <AssemblyName>Volo.Abp.BackgroundJobs.Tests</AssemblyName>
+    <PackageId>Volo.Abp.BackgroundJobs.Tests</PackageId>
+    <GenerateRuntimeConfigurationFiles>true</GenerateRuntimeConfigurationFiles>
+    <GenerateAssemblyConfigurationAttribute>false</GenerateAssemblyConfigurationAttribute>
+    <GenerateAssemblyCompanyAttribute>false</GenerateAssemblyCompanyAttribute>
+    <GenerateAssemblyProductAttribute>false</GenerateAssemblyProductAttribute>
+    <RootNamespace />
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\src\Volo.Abp.BackgroundJobs\Volo.Abp.BackgroundJobs.csproj" />
+    <ProjectReference Include="..\AbpTestBase\AbpTestBase.csproj" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.7.2" />
+  </ItemGroup>
+
+</Project>

framework/test/Volo.Abp.BackgroundJobs.Tests/Volo/Abp/BackgroundJobs/Class1.cs

@@ -0,0 +1,7 @@
+namespace Volo.Abp.BackgroundJobs
+{
+    public class Class1
+    {
+
+    }
+}