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AbpSettingManagementDomainModule.cs
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AbpSettingManagementDomainModule.cs
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using System;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
using Polly;
using Volo.Abp.Caching;
using Volo.Abp.Data;
using Volo.Abp.DependencyInjection;
using Volo.Abp.Domain;
using Volo.Abp.Modularity;
using Volo.Abp.Settings;
using Volo.Abp.Threading;
namespace Volo.Abp.SettingManagement;
[DependsOn(
typeof(AbpSettingsModule),
typeof(AbpDddDomainModule),
typeof(AbpSettingManagementDomainSharedModule),
typeof(AbpCachingModule)
)]
public class AbpSettingManagementDomainModule : AbpModule
{
private readonly CancellationTokenSource _cancellationTokenSource = new();
private Task _initializeDynamicSettingsTask;
public override void ConfigureServices(ServiceConfigurationContext context)
{
Configure<SettingManagementOptions>(options =>
{
options.Providers.Add<DefaultValueSettingManagementProvider>();
options.Providers.Add<ConfigurationSettingManagementProvider>();
options.Providers.Add<GlobalSettingManagementProvider>();
options.Providers.Add<TenantSettingManagementProvider>();
options.Providers.Add<UserSettingManagementProvider>();
});
if (context.Services.IsDataMigrationEnvironment())
{
Configure<SettingManagementOptions>(options =>
{
options.SaveStaticSettingsToDatabase = false;
options.IsDynamicSettingStoreEnabled = false;
});
}
}
public override void OnApplicationInitialization(ApplicationInitializationContext context)
{
AsyncHelper.RunSync(() => OnApplicationInitializationAsync(context));
}
public override Task OnApplicationInitializationAsync(ApplicationInitializationContext context)
{
InitializeDynamicSettings(context);
return Task.CompletedTask;
}
public override Task OnApplicationShutdownAsync(ApplicationShutdownContext context)
{
_cancellationTokenSource.Cancel();
return Task.CompletedTask;
}
public Task GetInitializeDynamicSettingsTask()
{
return _initializeDynamicSettingsTask ?? Task.CompletedTask;
}
private void InitializeDynamicSettings(ApplicationInitializationContext context)
{
var options = context
.ServiceProvider
.GetRequiredService<IOptions<SettingManagementOptions>>()
.Value;
if (!options.SaveStaticSettingsToDatabase && !options.IsDynamicSettingStoreEnabled)
{
return;
}
var rootServiceProvider = context.ServiceProvider.GetRequiredService<IRootServiceProvider>();
_initializeDynamicSettingsTask = Task.Run(async () =>
{
using var scope = rootServiceProvider.CreateScope();
var applicationLifetime = scope.ServiceProvider.GetService<IHostApplicationLifetime>();
var cancellationTokenProvider = scope.ServiceProvider.GetRequiredService<ICancellationTokenProvider>();
var cancellationToken = applicationLifetime?.ApplicationStopping ?? _cancellationTokenSource.Token;
try
{
using (cancellationTokenProvider.Use(cancellationToken))
{
if (cancellationTokenProvider.Token.IsCancellationRequested)
{
return;
}
await SaveStaticSettingsToDatabaseAsync(options, scope, cancellationTokenProvider);
if (cancellationTokenProvider.Token.IsCancellationRequested)
{
return;
}
await PreCacheDynamicSettingsAsync(options, scope);
}
}
// ReSharper disable once EmptyGeneralCatchClause (No need to log since it is logged above)
catch { }
});
}
private async static Task SaveStaticSettingsToDatabaseAsync(
SettingManagementOptions options,
IServiceScope scope,
ICancellationTokenProvider cancellationTokenProvider)
{
if (!options.SaveStaticSettingsToDatabase)
{
return;
}
await Policy
.Handle<Exception>()
.WaitAndRetryAsync(8, retryAttempt => TimeSpan.FromSeconds(Math.Pow(2, retryAttempt) * 10))
.ExecuteAsync(async _ =>
{
try
{
// ReSharper disable once AccessToDisposedClosure
await scope
.ServiceProvider
.GetRequiredService<IStaticSettingSaver>()
.SaveAsync();
}
catch (Exception ex)
{
// ReSharper disable once AccessToDisposedClosure
scope.ServiceProvider
.GetService<ILogger<AbpSettingManagementDomainModule>>()?
.LogException(ex);
throw; // Polly will catch it
}
}, cancellationTokenProvider.Token);
}
private async static Task PreCacheDynamicSettingsAsync(SettingManagementOptions options, IServiceScope scope)
{
if (!options.IsDynamicSettingStoreEnabled)
{
return;
}
try
{
// Pre-cache settings, so first request doesn't wait
await scope
.ServiceProvider
.GetRequiredService<IDynamicSettingDefinitionStore>()
.GetAllAsync();
}
catch (Exception ex)
{
// ReSharper disable once AccessToDisposedClosure
scope
.ServiceProvider
.GetService<ILogger<AbpSettingManagementDomainModule>>()?
.LogException(ex);
throw; // It will be cached in InitializeDynamicSettings
}
}
}