Resolved #1094: Configuration redesign.

framework/src/Volo.Abp.AspNetCore/Microsoft/Extensions/DependencyInjection/AbpAspNetCoreServiceCollectionExtensions.cs

@@ -1,6 +1,4 @@
-using System;
-using Microsoft.AspNetCore.Hosting;
-using Microsoft.Extensions.Configuration;
+using Microsoft.AspNetCore.Hosting;
 
 namespace Microsoft.Extensions.DependencyInjection
 {
@@ -10,19 +8,5 @@ namespace Microsoft.Extensions.DependencyInjection
         {
             return services.GetSingletonInstance<IWebHostEnvironment>();
         }
-
-        [Obsolete]
-        public static IConfigurationRoot BuildConfiguration(this IServiceCollection services, AbpConfigurationBuilderOptions options = null)
-        {
-            return services.GetHostingEnvironment().BuildConfiguration(options);
-        }
-
-        [Obsolete]
-        public static IConfigurationRoot AddConfiguration(this IServiceCollection services, AbpConfigurationBuilderOptions options = null)
-        {
-            var configuration = services.BuildConfiguration(options);
-            services.SetConfiguration(configuration);
-            return configuration;
-        }
     }
 }

framework/src/Volo.Abp.AspNetCore/Volo/Abp/AspNetCore/AbpAspNetCoreModule.cs

@@ -29,11 +29,6 @@ namespace Volo.Abp.AspNetCore
         )]
     public class AbpAspNetCoreModule : AbpModule
     {
-        public override void PreConfigureServices(ServiceConfigurationContext context)
-        {
-            context.Services.AddConfiguration();
-        }
-
         public override void ConfigureServices(ServiceConfigurationContext context)
         {
             Configure<AbpAuditingOptions>(options =>

framework/src/Volo.Abp.Core/Microsoft/Extensions/Configuration/AbpConfigurationBuilderOptions.cs

@@ -35,5 +35,10 @@ namespace Microsoft.Extensions.Configuration
         /// Prefix for the environment variables.
         /// </summary>
         public string EnvironmentVariablesPrefix { get; set; }
+
+        /// <summary>
+        /// Command line arguments.
+        /// </summary>
+        public string[] CommandLineArgs { get; set; }
     }
 }

framework/src/Volo.Abp.Core/Microsoft/Extensions/Configuration/ConfigurationHelper.cs

@@ -5,7 +5,8 @@ namespace Microsoft.Extensions.Configuration
 {
     public static class ConfigurationHelper
     {
-        public static IConfigurationRoot BuildConfiguration(AbpConfigurationBuilderOptions options = null)
+        public static IConfigurationRoot BuildConfiguration(
+            AbpConfigurationBuilderOptions options = null)
         {
             options = options ?? new AbpConfigurationBuilderOptions();
 
@@ -22,8 +23,6 @@ namespace Microsoft.Extensions.Configuration
             {
                 builder = builder.AddJsonFile($"{options.FileName}.{options.EnvironmentName}.json", optional: true, reloadOnChange: true);
             }
-            
-            builder = builder.AddEnvironmentVariables(options.EnvironmentVariablesPrefix);
 
             if (options.EnvironmentName == "Development")
             {
@@ -37,6 +36,13 @@ namespace Microsoft.Extensions.Configuration
                 }
             }
 
+            builder = builder.AddEnvironmentVariables(options.EnvironmentVariablesPrefix);
+
+            if (options.CommandLineArgs != null)
+            {
+                builder = builder.AddCommandLine(options.CommandLineArgs);
+            }
+
             return builder.Build();
         }
     }

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

@@ -1,20 +1,17 @@
-using System;
-using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection.Extensions;
 using Microsoft.Extensions.Hosting;
-using Volo.Abp.Configuration;
 
 namespace Microsoft.Extensions.DependencyInjection
 {
     public static class ServiceCollectionConfigurationExtensions
     {
-        [Obsolete]
-        public static IServiceCollection SetConfiguration(this IServiceCollection services, IConfigurationRoot configurationRoot)
+        public static IServiceCollection ReplaceConfiguration(this IServiceCollection services, IConfiguration configuration)
         {
-            return services.Replace(ServiceDescriptor.Singleton<IConfigurationAccessor>(new DefaultConfigurationAccessor(configurationRoot)));
+            return services.Replace(ServiceDescriptor.Singleton<IConfiguration>(configuration));
         }
 
-        public static IConfigurationRoot GetConfiguration(this IServiceCollection services)
+        public static IConfiguration GetConfiguration(this IServiceCollection services)
         {
             var hostBuilderContext = services.GetSingletonInstanceOrNull<HostBuilderContext>();
             if (hostBuilderContext?.Configuration != null)
@@ -22,7 +19,7 @@ namespace Microsoft.Extensions.DependencyInjection
                 return hostBuilderContext.Configuration as IConfigurationRoot;
             }
 
-            return services.GetSingletonInstance<IConfigurationAccessor>().Configuration;
+            return services.GetSingletonInstance<IConfiguration>();
         }
     }
 }

framework/src/Volo.Abp.Core/Volo.Abp.Core.csproj

@@ -17,6 +17,7 @@
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="3.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="3.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.CommandLine" Version="3.0.0" />
     <PackageReference Include="Microsoft.Extensions.Options" Version="3.0.0" />
     <PackageReference Include="Microsoft.Extensions.Options.ConfigurationExtensions" Version="3.0.0" />
     <PackageReference Include="Microsoft.Extensions.Logging" Version="3.0.0" />

framework/src/Volo.Abp.Core/Volo/Abp/Configuration/DefaultConfigurationAccessor.cs

@@ -1,23 +0,0 @@
-using Microsoft.Extensions.Configuration;
-
-namespace Volo.Abp.Configuration
-{
-    public class DefaultConfigurationAccessor : IConfigurationAccessor
-    {
-        public static DefaultConfigurationAccessor Empty { get; }
-
-        public virtual IConfigurationRoot Configuration { get; }
-
-        static DefaultConfigurationAccessor()
-        {
-            Empty = new DefaultConfigurationAccessor(
-                new ConfigurationBuilder().Build()
-            );
-        }
-
-        public DefaultConfigurationAccessor(IConfigurationRoot configuration)
-        {
-            Configuration = configuration;
-        }
-    }
-}

framework/src/Volo.Abp.Core/Volo/Abp/Configuration/IConfigurationAccessor.cs

@@ -1,11 +0,0 @@
-using System;
-using Microsoft.Extensions.Configuration;
-
-namespace Volo.Abp.Configuration
-{
-    [Obsolete("IConfigurationAccessor will be removed in v1.0. Use IConfiguration instead (be use that you are using generic host just like the startup templates).")]
-    public interface IConfigurationAccessor
-    {
-        IConfigurationRoot Configuration { get; }
-    }
-}

framework/src/Volo.Abp.Core/Volo/Abp/Internal/InternalServiceCollectionExtensions.cs

@@ -1,7 +1,6 @@
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.DependencyInjection.Extensions;
-using Volo.Abp.Configuration;
 using Volo.Abp.Modularity;
 using Volo.Abp.Reflection;
 
@@ -24,17 +23,13 @@ namespace Volo.Abp.Internal
             var assemblyFinder = new AssemblyFinder(abpApplication);
             var typeFinder = new TypeFinder(assemblyFinder);
 
-            var configurationAccessor = new DefaultConfigurationAccessor(
-                ConfigurationHelper.BuildConfiguration(
-                    applicationCreationOptions.Configuration
-                )
-            );
-
-            services.TryAddSingleton<IConfigurationAccessor>(configurationAccessor);
-
             if (!services.IsAdded<IConfiguration>())
             {
-                services.AddSingleton<IConfiguration>(configurationAccessor.Configuration);
+                services.ReplaceConfiguration(
+                    ConfigurationHelper.BuildConfiguration(
+                        applicationCreationOptions.Configuration
+                    )
+                );
             }
 
             services.TryAddSingleton<IModuleLoader>(moduleLoader);

framework/test/SimpleConsoleDemo/Program.cs

@@ -1,4 +1,6 @@
 using System;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Volo.Abp;
 using Volo.Abp.DependencyInjection;
@@ -8,16 +10,31 @@ namespace SimpleConsoleDemo
 {
     class Program
     {
-        static void Main(string[] args)
+        static async Task Main(string[] args)
         {
             using (var application = AbpApplicationFactory.Create<MyConsoleModule>(options =>
             {
-                
+                options.Configuration.CommandLineArgs = args;
+                options.UseAutofac();
             }))
             {
+                Console.WriteLine("Initializing the application...");
                 application.Initialize();
+                Console.WriteLine("Initializing the application... OK");
 
-                Console.WriteLine("ABP initialized... Press ENTER to exit!");
+                Console.WriteLine("Checking configuration...");
+
+                var configuration = application.ServiceProvider.GetRequiredService<IConfiguration>();
+                if (configuration["AppSettingKey1"] != "AppSettingValue1")
+                {
+                    Console.WriteLine("ERROR: Could not read the configuration!");
+                    Console.WriteLine("Press ENTER to exit!");
+                    Console.ReadLine();
+                    return;
+                }
+
+                Console.WriteLine();
+                Console.WriteLine("Checking configuration... OK");
 
                 var writers = application.ServiceProvider.GetServices<IMessageWriter>();
                 foreach (var writer in writers)
@@ -25,6 +42,9 @@ namespace SimpleConsoleDemo
                     writer.Write();
                 }
 
+
+                Console.WriteLine();
+                Console.WriteLine("Press ENTER to exit!");
                 Console.ReadLine();
             }
         }

framework/test/SimpleConsoleDemo/SimpleConsoleDemo.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
@@ -6,7 +6,23 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <ProjectReference Include="..\..\src\Volo.Abp.Core\Volo.Abp.Core.csproj" />
+    <None Remove="appsettings.json" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Content Include="appsettings.json">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <ExcludeFromSingleFile>true</ExcludeFromSingleFile>
+      <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
+    </Content>
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Hosting" Version="3.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\src\Volo.Abp.Autofac\Volo.Abp.Autofac.csproj" />
   </ItemGroup>
 
 </Project>

framework/test/SimpleConsoleDemo/appsettings.json

@@ -0,0 +1,3 @@
+{
+  "AppSettingKey1": "AppSettingValue1"
+}

framework/test/Volo.Abp.Core.Tests/Volo/Abp/Configuration/ConfigurationAccessor_Tests.cs

@@ -30,7 +30,7 @@ namespace Volo.Abp.Configuration
             using (var application = AbpApplicationFactory.Create<IndependentEmptyModule>())
             {
                 var myConfiguration = new ConfigurationBuilder().Build();
-                application.Services.SetConfiguration(myConfiguration);
+                application.Services.ReplaceConfiguration(myConfiguration);
                 application.Services.GetConfiguration().ShouldBe(myConfiguration);
 
                 application.Initialize();
@@ -41,12 +41,11 @@ namespace Volo.Abp.Configuration
             }
         }
 
-        private static IConfigurationRoot ResolveConfiguration(IAbpApplication application)
+        private static IConfiguration ResolveConfiguration(IAbpApplication application)
         {
             return application
                 .ServiceProvider
-                .GetRequiredService<IConfigurationAccessor>()
-                .Configuration;
+                .GetRequiredService<IConfiguration>();
         }
     }
 }