Introduce Application Instance Id & Rename IApplicationNameAccessor to IApplicationInfoAccessor

framework/src/Volo.Abp.Core/Microsoft/Extensions/DependencyInjection/ServiceCollectionApplicationExtensions.cs

@@ -43,6 +43,12 @@ public static class ServiceCollectionApplicationExtensions
     [CanBeNull]
     public static string GetApplicationName(this IServiceCollection services)
     {
-        return services.GetSingletonInstance<IApplicationNameAccessor>().ApplicationName;
+        return services.GetSingletonInstance<IApplicationInfoAccessor>().ApplicationName;
+    }
+    
+    [NotNull]
+    public static string GetApplicationInstanceId(this IServiceCollection services)
+    {
+        return services.GetSingletonInstance<IApplicationInfoAccessor>().InstanceId;
     }
 }

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

@@ -26,6 +26,8 @@ public abstract class AbpApplicationBase : IAbpApplication
 
     public string ApplicationName { get; }
 
+    public string InstanceId { get; } = Guid.NewGuid().ToString();
+
     private bool _configuredServices;
 
     internal AbpApplicationBase(
@@ -47,7 +49,7 @@ public abstract class AbpApplicationBase : IAbpApplication
         ApplicationName = GetApplicationName(options);
 
         services.AddSingleton<IAbpApplication>(this);
-        services.AddSingleton<IApplicationNameAccessor>(this);
+        services.AddSingleton<IApplicationInfoAccessor>(this);
         services.AddSingleton<IModuleContainer>(this);
 
         services.AddCoreServices();

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

@@ -7,7 +7,7 @@ namespace Volo.Abp;
 
 public interface IAbpApplication :
     IModuleContainer,
-    IApplicationNameAccessor,
+    IApplicationInfoAccessor,
     IDisposable
 {
     /// <summary>

framework/src/Volo.Abp.Core/Volo/Abp/IApplicationNameAccessor.cs → framework/src/Volo.Abp.Core/Volo/Abp/IApplicationInfoAccessor.cs

@@ -2,7 +2,7 @@ using JetBrains.Annotations;
 
 namespace Volo.Abp;
 
-public interface IApplicationNameAccessor
+public interface IApplicationInfoAccessor
 {
     /// <summary>
     /// Name of the application.
@@ -11,4 +11,11 @@ public interface IApplicationNameAccessor
     /// </summary>
     [CanBeNull]
     string ApplicationName { get; }
+    
+    /// <summary>
+    /// A unique identifier for this application instance.
+    /// This value changes whenever the application is restarted.
+    /// </summary>
+    [NotNull]
+    string InstanceId { get; }
 }

framework/test/Volo.Abp.Core.Tests/Volo/Abp/AbpApplication_Initialize_Tests.cs

@@ -151,7 +151,7 @@ public class AbpApplication_Initialize_Tests
     }
 
     [Fact]
-    public void Should_Set_And_Get_ApplicationName()
+    public void Should_Set_And_Get_ApplicationName_And_InstanceId()
     {
         var applicationName = "MyApplication";
 
@@ -165,10 +165,9 @@ public class AbpApplication_Initialize_Tests
 
             application.Initialize();
 
-            application.ServiceProvider
-                .GetRequiredService<IApplicationNameAccessor>()
-                .ApplicationName
-                .ShouldBe(applicationName);
+            var appInfo = application.ServiceProvider.GetRequiredService<IApplicationInfoAccessor>();
+            appInfo.ApplicationName.ShouldBe(applicationName);
+            appInfo.InstanceId.ShouldNotBeNullOrEmpty();
         }
 
         using (var application = AbpApplicationFactory.Create<IndependentEmptyModule>(options =>
@@ -185,7 +184,7 @@ public class AbpApplication_Initialize_Tests
             application.Initialize();
 
             application.ServiceProvider
-                .GetRequiredService<IApplicationNameAccessor>()
+                .GetRequiredService<IApplicationInfoAccessor>()
                 .ApplicationName
                 .ShouldBe(applicationName);
         }
@@ -199,7 +198,7 @@ public class AbpApplication_Initialize_Tests
             application.Initialize();
 
             application.ServiceProvider
-                .GetRequiredService<IApplicationNameAccessor>()
+                .GetRequiredService<IApplicationInfoAccessor>()
                 .ApplicationName
                 .ShouldBe(applicationName);
         }

modules/feature-management/src/Volo.Abp.FeatureManagement.Domain/Volo/Abp/FeatureManagement/StaticFeatureSaver.cs

@@ -22,7 +22,7 @@ public class StaticFeatureSaver : IStaticFeatureSaver, ITransientDependency
     protected IFeatureDefinitionRecordRepository FeatureRepository { get; }
     protected IFeatureDefinitionSerializer FeatureSerializer { get; }
     protected IDistributedCache Cache { get; }
-    protected IApplicationNameAccessor ApplicationNameAccessor { get; }
+    protected IApplicationInfoAccessor ApplicationInfoAccessor { get; }
     protected IAbpDistributedLock DistributedLock { get; }
     protected AbpFeatureOptions FeatureOptions { get; }
     protected ICancellationTokenProvider CancellationTokenProvider { get; }
@@ -35,7 +35,7 @@ public class StaticFeatureSaver : IStaticFeatureSaver, ITransientDependency
         IFeatureDefinitionSerializer featureSerializer,
         IDistributedCache cache,
         IOptions<AbpDistributedCacheOptions> cacheOptions,
-        IApplicationNameAccessor applicationNameAccessor,
+        IApplicationInfoAccessor applicationInfoAccessor,
         IAbpDistributedLock distributedLock,
         IOptions<AbpFeatureOptions> featureManagementOptions,
         ICancellationTokenProvider cancellationTokenProvider)
@@ -45,7 +45,7 @@ public class StaticFeatureSaver : IStaticFeatureSaver, ITransientDependency
         FeatureRepository = featureRepository;
         FeatureSerializer = featureSerializer;
         Cache = cache;
-        ApplicationNameAccessor = applicationNameAccessor;
+        ApplicationInfoAccessor = applicationInfoAccessor;
         DistributedLock = distributedLock;
         CancellationTokenProvider = cancellationTokenProvider;
         FeatureOptions = featureManagementOptions.Value;
@@ -249,7 +249,7 @@ public class StaticFeatureSaver : IStaticFeatureSaver, ITransientDependency
 
     private string GetApplicationDistributedLockKey()
     {
-        return $"{CacheOptions.KeyPrefix}_{ApplicationNameAccessor.ApplicationName}_AbpFeatureUpdateLock";
+        return $"{CacheOptions.KeyPrefix}_{ApplicationInfoAccessor.ApplicationName}_AbpFeatureUpdateLock";
     }
 
     private string GetCommonDistributedLockKey()
@@ -259,7 +259,7 @@ public class StaticFeatureSaver : IStaticFeatureSaver, ITransientDependency
 
     private string GetApplicationHashCacheKey()
     {
-        return $"{CacheOptions.KeyPrefix}_{ApplicationNameAccessor.ApplicationName}_AbpFeaturesHash";
+        return $"{CacheOptions.KeyPrefix}_{ApplicationInfoAccessor.ApplicationName}_AbpFeaturesHash";
     }
 
     private string GetCommonStampCacheKey()

modules/permission-management/src/Volo.Abp.PermissionManagement.Domain/Volo/Abp/PermissionManagement/StaticPermissionSaver.cs

@@ -22,7 +22,7 @@ public class StaticPermissionSaver : IStaticPermissionSaver, ITransientDependenc
     protected IPermissionDefinitionRecordRepository PermissionRepository { get; }
     protected IPermissionDefinitionSerializer PermissionSerializer { get; }
     protected IDistributedCache Cache { get; }
-    protected IApplicationNameAccessor ApplicationNameAccessor { get; }
+    protected IApplicationInfoAccessor ApplicationInfoAccessor { get; }
     protected IAbpDistributedLock DistributedLock { get; }
     protected AbpPermissionOptions PermissionOptions { get; }
     protected ICancellationTokenProvider CancellationTokenProvider { get; }
@@ -35,7 +35,7 @@ public class StaticPermissionSaver : IStaticPermissionSaver, ITransientDependenc
         IPermissionDefinitionSerializer permissionSerializer,
         IDistributedCache cache,
         IOptions<AbpDistributedCacheOptions> cacheOptions,
-        IApplicationNameAccessor applicationNameAccessor,
+        IApplicationInfoAccessor applicationInfoAccessor,
         IAbpDistributedLock distributedLock,
         IOptions<AbpPermissionOptions> permissionOptions,
         ICancellationTokenProvider cancellationTokenProvider)
@@ -45,7 +45,7 @@ public class StaticPermissionSaver : IStaticPermissionSaver, ITransientDependenc
         PermissionRepository = permissionRepository;
         PermissionSerializer = permissionSerializer;
         Cache = cache;
-        ApplicationNameAccessor = applicationNameAccessor;
+        ApplicationInfoAccessor = applicationInfoAccessor;
         DistributedLock = distributedLock;
         CancellationTokenProvider = cancellationTokenProvider;
         PermissionOptions = permissionOptions.Value;
@@ -249,7 +249,7 @@ public class StaticPermissionSaver : IStaticPermissionSaver, ITransientDependenc
 
     private string GetApplicationDistributedLockKey()
     {
-        return $"{CacheOptions.KeyPrefix}_{ApplicationNameAccessor.ApplicationName}_AbpPermissionUpdateLock";
+        return $"{CacheOptions.KeyPrefix}_{ApplicationInfoAccessor.ApplicationName}_AbpPermissionUpdateLock";
     }
 
     private string GetCommonDistributedLockKey()
@@ -259,7 +259,7 @@ public class StaticPermissionSaver : IStaticPermissionSaver, ITransientDependenc
 
     private string GetApplicationHashCacheKey()
     {
-        return $"{CacheOptions.KeyPrefix}_{ApplicationNameAccessor.ApplicationName}_AbpPermissionsHash";
+        return $"{CacheOptions.KeyPrefix}_{ApplicationInfoAccessor.ApplicationName}_AbpPermissionsHash";
     }
 
     private string GetCommonStampCacheKey()