依赖Log4Net Logger和使用Castle Windsor按调用方类型检索Logger
本文关键字:Logger 方类型 检索 调用 类型 Windsor Log4Net 依赖 Castle | 更新日期: 2023-09-27 18:26:18
我有一个关于log4net
的瘦包装,我正试图使用调用类的类型通过使用Castle.Windsor
从log4net.LogManager
获取记录器。
public class Foo: IFoo
{
private readonly ICommonLog _logger;
public Foo(ICommonLog logger)
{
_logger = logger;
}
public void FooBar()
{
_logger.Info("Enter FooBar Method");
}
}
public class CommonLog : ICommonLog
{
private readonly log4net.ILog _logger;
public CommonLog(Type loggerType)
{
_logger = log4net.LogManager.GetLogger(loggerType);
}
public void Info(string message)
{
_logger.Info(message.Cleanse());
}
// ...
}
我已经在Castle.Windsor
(2.5.1)中尝试了此注册,并且我能够获得Foo
的正确记录器。在这种情况下,我是否错误地使用了动态参数?有没有更优雅的解决方案?
container.Register(Component.For<ICommonLog>().ImplementedBy(typeof(CommonLog)).
LifeStyle.Transient);
container.Register(Component.For<IFoo>().ImplementedBy(typeof(Foo)).
LifeStyle.Transient.DynamicParameters(
(k, d) =>
{
var component = k.Resolve<ICommonLog>(new {loggerType = typeof (Foo)});
d["logger"] = component;
return r =>
{
if (component != null)
{
r.ReleaseComponent(component);
}
};
})
);
编辑:我已经使用ISubDependencyResolver
:更新了解决方案
public class LoggerResolver : ISubDependencyResolver
{
private readonly IKernel kernel;
public LoggerResolver(IKernel kernel)
{
this.kernel = kernel;
}
public bool CanResolve(CreationContext context,
ISubDependencyResolver contextHandlerResolver,
ComponentModel model,
DependencyModel dependency)
{
return dependency.TargetType == typeof (ICommonLog);
}
public object Resolve(CreationContext context,
ISubDependencyResolver contextHandlerResolver,
ComponentModel model,
DependencyModel dependency)
{
if (CanResolve(context, contextHandlerResolver, model, dependency))
{
return kernel.Resolve<ICommonLog>(new {loggerType = model.Implementation});
}
return null;
}
}
注册:
container.Register(Component.For<ICommonLog>().ImplementedBy(typeof(CommonLog))
.LifeStyle.Transient);
container.Register(Component.For<IFoo().ImplementedBy(typeof(Foo))
.LifeStyle.Transient);
container.Kernel.Resolver.AddSubResolver(new LoggerResolver(container.Kernel));
您不需要注册CommonLog。您的子依赖解析程序可以为您新建一个。
container.Register(Component.For<IFoo>().ImplementedBy<Foo>().LifeStyle.Transient);
container.Kernel.Resolver.AddSubResolver(new LoggerResolver(container.Kernel));
public class LoggerResolver : ISubDependencyResolver
{
...
public object Resolve(CreationContext context, ISubDependencyResolver contextHandlerResolver, ComponentModel model, DependencyModel dependency)
{
//No need to can resolve, Windsor will do this for you
return new CommonLog(model.Implementation);
}
}
EDIT记录器提供商示例
container.Register(Component.For<ILoggerProvider>().ImplementedBy<Log4NetLoggerProvider >().LifeStyle.Transient);
public interface ICommonLoggerProvider
{
ICommonLog GetLogger( Type type );
}
public class Log4NetLoggerProvider : ICommonLoggerProvider
{
public ICommonLog GetLogger(Type type)
{
return new Log4NetLogger(type);
}
}
public class LoggerResolver : ISubDependencyResolver
{
...
public object Resolve( CreationContext context, ISubDependencyResolver contextHandlerResolver, Castle.Core.ComponentModel model, DependencyModel dependency )
{
return kernel.Resolve<ICommonLoggerProvider>().GetLogger( model.Implementation );
}
}