Implement IsJobExecutionEnabled for all background job providers

framework/src/Volo.Abp.BackgroundJobs.Abstractions/Volo/Abp/BackgroundJobs/AbpBackgroundJobOptions.cs

@@ -8,8 +8,7 @@ namespace Volo.Abp.BackgroundJobs
     {
         private readonly Dictionary<Type, BackgroundJobConfiguration> _jobConfigurationsByArgsType;
         private readonly Dictionary<string, BackgroundJobConfiguration> _jobConfigurationsByName;
-
-        //TODO: Implement for all providers! (Hangfire does not implement yet)
+        
         /// <summary>
         /// Default: true.
         /// </summary>

framework/src/Volo.Abp.BackgroundJobs.Abstractions/Volo/Abp/BackgroundJobs/NullBackgroundJobManager.cs

@@ -19,7 +19,8 @@ namespace Volo.Abp.BackgroundJobs
         public virtual Task<string> EnqueueAsync<TArgs>(TArgs args, BackgroundJobPriority priority = BackgroundJobPriority.Normal,
             TimeSpan? delay = null)
         {
-            throw new AbpException("Background job system has not a real implementation. If it's mandatory, use an implementation (either the default provider or a 3rd party implementation). If it's optional, check IBackgroundJobManager.IsAvailable() extension method and act based on it.");
+            //throw new AbpException("Background job system has not a real implementation. If it's mandatory, use an implementation (either the default provider or a 3rd party implementation). If it's optional, check IBackgroundJobManager.IsAvailable() extension method and act based on it.");
+            return Task.FromResult(string.Empty);
         }
     }
 }

framework/src/Volo.Abp.BackgroundJobs.HangFire/Volo/Abp/BackgroundJobs/Hangfire/AbpBackgroundJobsHangfireModule.cs

@@ -1,4 +1,5 @@
-using Volo.Abp.Hangfire;
+using Microsoft.Extensions.DependencyInjection;
+using Volo.Abp.Hangfire;
 using Volo.Abp.Modularity;
 
 namespace Volo.Abp.BackgroundJobs.Hangfire
@@ -6,9 +7,16 @@ namespace Volo.Abp.BackgroundJobs.Hangfire
     [DependsOn(
         typeof(AbpBackgroundJobsAbstractionsModule),
         typeof(AbpHangfireModule)
-        )]
+    )]
     public class AbpBackgroundJobsHangfireModule : AbpModule
     {
-
+        public override void ConfigureServices(ServiceConfigurationContext context)
+        {
+            var options = context.Services.ExecutePreConfiguredActions<AbpBackgroundJobOptions>();
+            if (!options.IsJobExecutionEnabled)
+            {
+                context.Services.AddSingleton<IBackgroundJobManager>(x => new NullBackgroundJobManager());
+            }
+        }
     }
-}
+}

framework/src/Volo.Abp.BackgroundJobs.Quartz/Volo/Abp/BackgroundJobs/Quartz/AbpBackgroundJobsQuartzModule.cs

@@ -12,7 +12,15 @@ namespace Volo.Abp.BackgroundJobs.Quartz
     {
         public override void ConfigureServices(ServiceConfigurationContext context)
         {
-            context.Services.AddTransient(typeof(QuartzJobExecutionAdapter<>));
+            var options = context.Services.ExecutePreConfiguredActions<AbpBackgroundJobOptions>();
+            if (!options.IsJobExecutionEnabled)
+            {
+                context.Services.AddSingleton<IBackgroundJobManager>(x => new NullBackgroundJobManager());
+            }
+            else
+            {
+                context.Services.AddTransient(typeof(QuartzJobExecutionAdapter<>));
+            }
         }
     }
 }