C＃反射比。方法屬性

Question

我想創建一個Log4Net包裝界面。該接口的代碼：

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using System.Threading.Tasks; 

namespace PlayGround 
{ 
    public interface ILogger 
    { 
     void SetSource(string typeName); 

    /// <summary> 
    /// Provide Log "message" and/or "exception" data only 
    /// </summary> 
    /// <param name="message"></param> 
    /// <param name="exception"></param> 
    /// <param name="memberName"></param> 
    /// <param name="sourceFilePath"></param> 
    /// <param name="sourceLineNumber"></param> 
    void Error(string message, Exception exception = null, 
     [System.Runtime.CompilerServices.CallerMemberName] string memberName = null, 
     [System.Runtime.CompilerServices.CallerFilePath] string sourceFilePath = null, 
     [System.Runtime.CompilerServices.CallerLineNumber] int sourceLineNumber = 0); 

    /// <summary> 
    /// Provide Log "message" and/or "exception" data only 
    /// </summary> 
    /// <param name="message"></param> 
    /// <param name="exception"></param> 
    /// <param name="memberName"></param> 
    /// <param name="sourceFilePath"></param> 
    /// <param name="sourceLineNumber"></param> 
    void Warn(string message, Exception exception = null, 
     [System.Runtime.CompilerServices.CallerMemberName] string memberName = null, 
     [System.Runtime.CompilerServices.CallerFilePath] string sourceFilePath = null, 
     [System.Runtime.CompilerServices.CallerLineNumber] int sourceLineNumber = 0); 

    /// <summary> 
    /// Provide Log "message" and/or "exception" data only 
    /// </summary> 
    /// <param name="message"></param> 
    /// <param name="exception"></param> 
    /// <param name="memberName"></param> 
    /// <param name="sourceFilePath"></param> 
    /// <param name="sourceLineNumber"></param> 
    void Debug(string message, Exception exception = null, 
     [System.Runtime.CompilerServices.CallerMemberName] string memberName = null, 
     [System.Runtime.CompilerServices.CallerFilePath] string sourceFilePath = null, 
     [System.Runtime.CompilerServices.CallerLineNumber] int sourceLineNumber = 0); 

    /// <summary> 
    /// Provide Log "message" and/or "exception" data only 
    /// </summary> 
    /// <param name="message"></param> 
    /// <param name="exception"></param> 
    /// <param name="memberName"></param> 
    /// <param name="sourceFilePath"></param> 
    /// <param name="sourceLineNumber"></param> 
    void Info(string message, Exception exception = null, 
     [System.Runtime.CompilerServices.CallerMemberName] string memberName = null, 
     [System.Runtime.CompilerServices.CallerFilePath] string sourceFilePath = null, 
     [System.Runtime.CompilerServices.CallerLineNumber] int sourceLineNumber = 0); 

    /// <summary> 
    /// Provide Log "message" and/or "exception" data only 
    /// </summary> 
    /// <param name="message"></param> 
    /// <param name="exception"></param> 
    /// <param name="memberName"></param> 
    /// <param name="sourceFilePath"></param> 
    /// <param name="sourceLineNumber"></param> 
    void Fatal(string message, Exception exception = null, 
     [System.Runtime.CompilerServices.CallerMemberName] string memberName = null, 
     [System.Runtime.CompilerServices.CallerFilePath] string sourceFilePath = null, 
     [System.Runtime.CompilerServices.CallerLineNumber] int sourceLineNumber = 0); 
    } 
} 

實施：

using log4net; 
using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using System.Threading.Tasks; 

namespace PlayGround 
{ 
    class Log4NetLogger : ILogger 
    { 
     private static readonly log4net.ILog log = log4net.LogManager.GetLogger(typeof(Log4NetLogger)); 
     private static readonly bool isErrorEnabled = log.IsErrorEnabled; 
     private static readonly bool isWarnEnabled = log.IsWarnEnabled; 
     private static readonly bool isDebugEnabled = log.IsDebugEnabled; 
     private static readonly bool isInfoEnabled = log.IsInfoEnabled; 
     private static readonly bool isFatalEnabled = log.IsFatalEnabled; 

    private string TypeName; 

    public void SetSource(string typeName) 
    { 
     TypeName = typeName; 
    } 

    public void Error(string message, Exception Exception = null, string memberName = null, string sourceFilePath = null, int sourceLineNumber = 0) 
    { 
     if (isErrorEnabled) 
     { 
      string Message = BuildSourceDetails(message, memberName, sourceFilePath, sourceLineNumber); 

      if (Exception != null) 
      { 
       Message += BuildExceptionMsg(Exception.Message); 
      } 

      log.Error(Message); 
     } 
    } 

    public void Warn(string message, Exception Exception = null, string memberName = null, string sourceFilePath = null, int sourceLineNumber = 0) 
    { 
     if (isWarnEnabled) 
     { 
      string Message = BuildSourceDetails(message, memberName, sourceFilePath, sourceLineNumber); 

      if (Exception != null) 
      { 
       Message += BuildExceptionMsg(Exception.Message); 
      } 

      log.Warn(Message); 
     } 
    } 

    public void Debug(string message, Exception Exception = null, string memberName = null, string sourceFilePath = null, int sourceLineNumber = 0) 
    { 
     if (isDebugEnabled) 
     { 
      string Message = BuildSourceDetails(message, memberName, sourceFilePath, sourceLineNumber); 

      if (Exception != null) 
      { 
       Message += BuildExceptionMsg(Exception.Message); 
      } 

      log.Debug(Message); 
     } 
    } 

    public void Info(string message, Exception Exception = null, string memberName = null, string sourceFilePath = null, int sourceLineNumber = 0) 
    { 
     if (isInfoEnabled) 
     { 
      string Message = BuildSourceDetails(message, memberName, sourceFilePath, sourceLineNumber); 

      if (Exception != null) 
      { 
       Message += BuildExceptionMsg(Exception.Message); 
      } 

      log.Info(Message); 
     } 
    } 

    public void Fatal(string message, Exception Exception = null, string memberName = null, string sourceFilePath = null, int sourceLineNumber = 0) 
    { 
     if (isFatalEnabled) 
     { 
      string Message = BuildSourceDetails(message, memberName, sourceFilePath, sourceLineNumber); 

      if (Exception != null) 
      { 
       Message += BuildExceptionMsg(Exception.Message); 
      } 

      log.Fatal(Message); 
     } 
    } 

    private string BuildSourceDetails(string message, string memberName, string sourceFilePath, int sourceLineNumber) 
    { 
     return "[Class: " + TypeName + " Member: " + memberName + " Source: " + sourceFilePath + " Line: " + sourceLineNumber + "] [" + message + "]"; 
    } 

     private string BuildExceptionMsg(string message) 
     { 
      return " [System Exception: " + message + "] "; 
     } 
    } 
} 

從我的觀點基於在線研究，我已經進行了代碼工作性能上看相信。

問題在於;而不是在接口中使用屬性，是否有一種使用C＃反射的方法，以便我可以將用於記錄的代碼移到具體的實現中？這樣的界面更通用？

謝謝。

Answer 1

您可以使用兩種設計模式中的任何一種，我更喜歡適配器。本質上，您正在創建一個接口，它可以創建對基礎日誌記錄提供程序Nlog或Serilog的抽象。

http://www.dofactory.com/net/facade-design-pattern

http://www.dofactory.com/net/adapter-design-pattern

但我相信之前這個問題已經解決了一百萬次。看看https://github.com/net-commons/common-logging。