Solved

Enable environment variables in Log4Net file name value

Posted on 2010-09-17
6
1,332 Views
Last Modified: 2012-05-10
I'm wondering why I can't seem to use environment variables in the following settings in a .config file for a .net application:

<appender name="RollingLogFile" type="log4net.Appender.RollingFileAppender">
      <param name="File" value="..\\Logg\\Dashboard\\logfilename.log"/>
      <param name="AppendToFile" value="true"/>
      <param name="MaxSizeRollBackups" value="3"/>
      <param name="MaximumFileSize" value="5MB"/>
      <param name="RollingStyle" value="Size"/>
      <param name="StaticLogFileName" value="true"/>
      <param name="CountDirection" value="-1"/>
      <layout type="log4net.Layout.PatternLayout">
        <param name="ConversionPattern" value="%d [%t] %-5p %c [%x] &lt;%X{auth}&gt; - %m%n"/>
      </layout>

Open in new window


If I try to use i.e. ${USERNAME}.log it only creates a new file with the filename ${USERNAME}.log instead of a username.

What is the correct syntax/variable to use for this, if possible at all?

This is a Windows environment
0
Comment
Question by:beester
  • 3
  • 2
6 Comments
 
LVL 13

Expert Comment

by:Corey2
ID: 33702525
Try using %USERNAME% I believe with log4net you have to use command line syntax for file name and path.
0
 
LVL 7

Author Comment

by:beester
ID: 33712215
Nope, doesn't seem to help. Tried ${%USERNAME%}, env{%USERNAME%}, {%USERNAME%} and just %USERNAME%, and all it does is to create a log file with the name as I write it, it doesn't parse the environment variables...
0
 
LVL 13

Accepted Solution

by:
Corey2 earned 500 total points
ID: 33713189
I recall running into an issue with this with the rolling log file appender I have been configuring it through code instead of  Settings.


            Dim apdr As New Appender.RollingFileAppender()
            Dim layout As New log4net.Layout.PatternLayout("%date [%thread] %-5level %logger [%property{NDC}] - %message%newline")
            Dim Folder As String = My.Computer.FileSystem.SpecialDirectories.Temp
            With apdr
                .LockingModel = New log4net.Appender.RollingFileAppender.MinimalLock()
                .Name = "MyApplication Log"
                'Appears to be in bytes so this = 1mb
                .MaxFileSize = 1049000
                .AppendToFile = True
                .File = IO.Path.Combine(Folder, "MyApplication.log")
end with

Open in new window

0
 
LVL 7

Author Comment

by:beester
ID: 33765669
I checked with our head programmer, and he said that this wasn't a viable solution for us. But he also said he thought this was solved in a newer Log4Net than the one we use, so I guess I'll try upgrading first...
0
 
LVL 13

Expert Comment

by:Corey2
ID: 33928589
Which version of log4net are you using?
0

Featured Post

How Do You Stack Up Against Your Peers?

With today’s modern enterprise so dependent on digital infrastructures, the impact of major incidents has increased dramatically. Grab the report now to gain insight into how your organization ranks against your peers and learn best-in-class strategies to resolve incidents.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

For those of you who don't follow the news, or just happen to live under rocks, Microsoft Research released a beta SDK (http://www.microsoft.com/en-us/download/details.aspx?id=27876) for the Xbox 360 Kinect. If you don't know what a Kinect is (http:…
More often than not, we developers are confronted with a need: a need to make some kind of magic happen via code. Whether it is for a client, for the boss, or for our own personal projects, the need must be satisfied. Most of the time, the Framework…
In a recent question (https://www.experts-exchange.com/questions/29004105/Run-AutoHotkey-script-directly-from-Notepad.html) here at Experts Exchange, a member asked how to run an AutoHotkey script (.AHK) directly from Notepad++ (aka NPP). This video…
In an interesting question (https://www.experts-exchange.com/questions/29008360/) here at Experts Exchange, a member asked how to split a single image into multiple images. The primary usage for this is to place many photographs on a flatbed scanner…

756 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question