How to change log file path (log4net) from default disk drive to alternative disk drive

Question

I'm using log4net to write log file for my application. I've set the log file path as below:

<appender name="LogFileAppender" type="log4net.Appender.RollingFileAppender">
      <lockingModel type="log4net.Appender.FileAppender+MinimalLock"/>
      <file value="D:\MyApp\LogFiles\MyApp_"/>
      <appendToFile value="true"/>
      <rollingStyle value="Date"/>
                    .  
                    .
                    .

The log file is saved in D drive. How can I change to C drive if D drive (default log file location) is not available/not exist? Is it possible to do so in the coding (C#) or I've no choice to force other users to have D drive?

score 1 · Answer 1 · edited May 23 '17 at 12:14

1

The appender is able to be configured in code instead of using of a config file so that it's quite easy to determine which drive the log file should be put in code. More detail please refer to another thread.

edited May 23 '17 at 12:14

Community

1
1

answered Aug 13 '15 at 02:33

Simon zhao

56
7

Hi @Simonzhao, thanks for the reference...i've combined it with the disk drive checking and it work well now =)... – YWah Aug 14 '15 at 00:21

score 0 · Answer 2 · answered Aug 14 '15 at 00:25

By the combining the reference that @Simonzhao provided, the solution will be looked like:

        public static Logger()
        {
            PatternLayout patternLayout = new PatternLayout();
            patternLayout.ConversionPattern = "%date %-5level %message%newline";
            patternLayout.ActivateOptions();

            RollingFileAppender rollingFileAppender = new RollingFileAppender();
            rollingFileAppender.AppendToFile = true;

            #region Write the log file into D drive, if D drive is not found, then into E drive, else C drive

            var diskDrive = DriveInfo.GetDrives();

            if (diskDrive.Where(drive => drive.Name == "D:\\").Count() == 1)
              rollingFileAppender.File = @"D:\LogFiles\MyApp_";

            else if (diskDrive.Where(drive => drive.Name == "E:\\").Count() == 1)
              rollingFileAppender.File = @"E:\LogsFiles\MyApp_";

            else
              rollingFileAppender.File = @"C:\LogFiles\MyApp_";

            #endregion

            rollingFileAppender.Layout = patternLayout;
            rollingFileAppender.MaxSizeRollBackups = 5;
            rollingFileAppender.MaximumFileSize = "5MB";
                          .
                          .
                          .
       }

How to change log file path (log4net) from default disk drive to alternative disk drive

2 Answers2