我正在使用基于 this 的架构洋葱架构的实现。我决定挑战自己,用 NLog 更改 NHibernates 默认记录器 (log4net)。我了解如何配置 NLog,但我无法解决我对 LogerFactory 类中的记录器的依赖性。目前,我的 NHibernate 项目只知道我的日志接口(interface)。我怎样才能让我的 NHibernate 项目解决依赖关系?
这是我现在的程序结构: 控制台应用程序初始化 ninject 并设置我的模块,包括我的 LoggingModule 和我的 RepositoryModule。第一次我需要我的存储库中的东西时,我的 SessionHelper 类会构建我的 session 并配置 NHibernate。这是 NHibernate 调用我的 LoggerFactory 的地方(LoggerFactory 实现了 NHibernates ILoggerFactory)。 NHibernate 调用 LoggerFor(Type type);类型作为 NHibernate.Cfg.Configuration 传入。从这里开始,我需要通过我的 ILoggingService 获取 NLog 的实例,这是我感到困惑的地方。我如何解决这里的这种依赖?我的控制台应用程序知道分辨率,因为那是我构建内核和加载模块的地方。我只是在这里设置另一个内核吗?解决这个问题的最佳方法是什么?
编辑:这是我当前的代码:
程序.cs
namespace ZeroBase.ManualConsole
{
class Program
{
static void Main(string[] args)
{
IKernel kernel = CreateKernel();
CoreService service = new CoreService(
kernel.Get<ZeroBase.Domain.Interfaces.IUserRepository>(),
kernel.Get<ZeroBase.Domain.Interfaces.ICommentRepository>());
//.........
}
static IKernel CreateKernel()
{
IKernel kernel = new StandardKernel();
RegisterServices(kernel);
return kernel;
}
static void RegisterServices(IKernel kernel)
{
// Bind Core Service
kernel.Bind<ICoreService>().To<CoreService>();
// Add data and infrastructure modules
var modules = new List<INinjectModule>
{
new ConfigModule(),
new LoggingModule(),
new RepositoryModule()
};
kernel.Load(modules);
}
}
}
LoggingModule.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Ninject.Modules;
using ZeroBase.Infrastructure.Interfaces;
using NLog.Config;
using NLog;
using ZeroBase.Infrastructure.Logging;
namespace ZeroBase.Infrastructure.DependencyResolution
{
public class LoggingModule : NinjectModule
{
public override void Load()
{
ILoggingService logger = GetLoggingService();
Bind<ILoggingService>().ToConstant(logger);
}
private ILoggingService GetLoggingService()
{
ConfigurationItemFactory.Default.LayoutRenderers
.RegisterDefinition("utc_date", typeof(UtcDateRenderer));
ConfigurationItemFactory.Default.LayoutRenderers
.RegisterDefinition("web_variables", typeof(WebVariablesRenderer));
ILoggingService logger = (ILoggingService)LogManager.GetLogger("NLogLogger", typeof(LoggingService));
return logger;
}
}
}
RepositoryModule.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Ninject;
using Ninject.Modules;
using ZeroBase.Infrastructure.Interfaces;
using ZeroBase.Domain.Interfaces;
using ZeroBase.Infrastructure.Data;
namespace ZeroBase.Infrastructure.DependencyResolution
{
public class RepositoryModule : NinjectModule
{
public override void Load()
{
SetupLogging();
BindRepositories();
}
private void SetupLogging()
{
// Get logging service
var loggingService = Kernel.Get<ILoggingService>();
}
private void BindRepositories()
{
// Get config service
var configService = Kernel.Get<IConfigService>();
// Bind repositories
Bind<IUserRepository>().To<UserRepository>()
.WithConstructorArgument("connectionString", configService.ZeroBaseConnection);
Bind<ICommentRepository>().To<CommentRepository>()
.WithConstructorArgument("connectionString", configService.ZeroBaseConnection);
}
}
}
RepositoryBase.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using ZeroBase.Domain.Interfaces;
namespace ZeroBase.Infrastructure.Data
{
public class RepositoryBase<T> : IRepositoryBase<T>
{
protected SessionHelper _nhibernate;
protected string _connectionString;
public RepositoryBase(string connectionString)
{
_connectionString = connectionString;
_nhibernate = new SessionHelper(_connectionString);
}
//....
}
}
SessionHelper.cs 构建 NHibernate session 并进行配置。请注意,正在注入(inject) connectionString。我可以轻松地在此处注入(inject)日志记录服务。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using NHibernate;
using FluentNHibernate.Cfg;
using FluentNHibernate.Cfg.Db;
using ZeroBase.Infrastructure.Data;
using FluentNHibernate.Automapping;
using ZeroBase.Domain.Entities;
using ZeroBase.Infrastructure.Interfaces;
namespace ZeroBase.Infrastructure.Data
{
public class SessionHelper
{
private ISessionFactory _sessionFactory;
private string _connectionString;
public SessionHelper(string connectionString)
{
_connectionString = connectionString;
}
private ISessionFactory SessionFactory
{
get
{
if (_sessionFactory == null)
InitializeSessionFactory();
return _sessionFactory;
}
}
private void InitializeSessionFactory()
{
_sessionFactory = Fluently.Configure()
// Set up database connection
.Database(MsSqlConfiguration.MsSql2005
.ConnectionString(x => x.Is(_connectionString))
//.ShowSql()
)
// Use class mappings
.Mappings(m => m.FluentMappings
.AddFromAssemblyOf<UserMap>()
.AddFromAssemblyOf<ZeroBase.Infrastructure.Data.RACS3.UserMap>())
.ExposeConfiguration(c => {
c.SetInterceptor(new AuditInterceptor());
}
)
.BuildSessionFactory();
}
public ISession OpenSession()
{
return SessionFactory.OpenSession();
}
}
}
记录器工厂.cs 通过 app.config 为 NHibernate 配置以用于其日志记录。这是我遇到依赖性问题的地方。这与 NHibernate 一起存在。我可以在此处轻松引用 NLog 并将其与 NHibernate 连接起来,但我不希望 NHibernate 关心我使用的是什么日志记录框架。这就是为什么我只想处理我的接口(interface),让 Ninject 注入(inject)我的具体实现。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using NHibernate;
using ZeroBase.Infrastructure.Interfaces;
namespace ZeroBase.Infrastructure.Data
{
public class LoggerFactory : ILoggerFactory
{
public IInternalLogger LoggerFor(Type type)
{
//ILoggingService logService;
// Get resolved LoggingService
//return new NLogLogger(LogManager.GetLogger(type.FullName));
//return new Logger(logService.GetLogger(type.FullName));
return null;
}
public IInternalLogger LoggerFor(string keyName)
{
//ILoggingService logService;
// Get resolved LoggingService
//return new NLogLogger(LogManager.GetLogger(keyName));
//return new Logger(logService.GetLogger(keyName));
return null;
}
}
public class Logger : IInternalLogger
{
private readonly ILoggingService logger;
public Logger(ILoggingService _logger)
{
logger = _logger;
}
//....
}
}
最佳答案
为什么不能将静态内核属性添加到 LoggerFactory 类,并在初始化内核后立即在 Program.Main 中设置它?
然后在您的 LoggerFor 实现中,您只需引用静态内核属性即可获得正确绑定(bind)的实现。
关于c# - 洋葱架构日志记录 NHibernate,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/11090857/