. NET log system design ideas and implementation code

Logs are obviously an important means to help you locate the problem. Originally, NLog was intended to be used directly as a system log tool, a metamorphosis has to say that there are many uncontrollable factors. Here I will tell you how I implement the Log Module.

Overall Architecture

• Here, I divide the day level into tracking, and the three definitions of BUG and error are enumerated as follows:
Copy codeThe Code is as follows:
/// <Summary>
/// Log Level
/// </Summary>
Public enum Loglevel
{
Track = 1,
Bug,
Error
}

• The scalability of the log module is considered here (two methods are supported for databases and files). Here, the adapter mode is used to complete this module. Here we will provide you with year-end benefits. Post Code
Define an interface ILogTarget
Copy codeThe Code is as follows:
Public interface ILogTarget
{
/// <Summary>
/// Write tracing information
/// </Summary>
/// <Param name = "LogContent"> </param>
Void WriteTrack (string LogContent );

/// <Summary>
/// Write BUG information
/// </Summary>
/// <Param name = "LogContent"> </param>
Void WriteBug (string LogContent );

/// <Summary>
/// Write error message
/// </Summary>
/// <Param name = "LogContent"> </param>
Void WriteError (string LogContent );

}


• FileLog, and DBLog classes implement the above interface. The specific reality is not attached here.
Copy codeThe Code is as follows:
/// <Summary>
/// File log implementation class
/// </Summary>
Public class FileLog: ILogTarget
{
Public void WriteTrack (string LogContent)
{
Throw new NotImplementedException ();
}

Public void WriteBug (string LogContent)
{
Throw new NotImplementedException ();
}

Public void WriteError (string LogContent)
{
Throw new NotImplementedException ();
}
}

Copy codeThe Code is as follows:
Public class DBLog: ILogTarget
{
Public void WriteTrack (string LogContent)
{
Throw new NotImplementedException ();
}

Public void WriteBug (string LogContent)
{
Throw new NotImplementedException ();
}

Public void WriteError (string LogContent)
{
Throw new NotImplementedException ();
}
}

Copy codeThe Code is as follows:
Public class SmartLog
{
Private ILogTarget _ adaptee;

Public SmartLog (ILogTarget tragent)
{
This. _ adaptee = tragent;
}
Public void WriteTrack (string LogContent)
{
_ Adaptee. WriteTrack (LogContent );
}

Public void WriteBug (string LogContent)
{
_ Adaptee. WriteBug (LogContent );
}

Public void WriteError (string LogContent)
{
_ Adaptee. WriteError (LogContent );
}
}

• Call Method
Copy codeThe Code is as follows:
SmartLog log = new SmartLog (new FileLog ());

Log. WriteTrack ("Hello word ");