Want to modify my existing log file name to include a dynamic variable value

[Leo Mathew <le...@sonata-software.com>]

Hi All,

I want to modify my existing log file name to include a dynamic variable
value.

Below is my log file.

<?xml version="1.0" encoding="utf-8" ?>
<log4net debug="false">

	<appender name="RollingLogFileAppender"
type="log4net.Appender.RollingFileAppender,log4net">
		<param name="File" value="logs\\intserver" />
		<param name="AppendToFile" value="true" />
		<param name="StaticLogFileName" value="False" />
		<param name="RollingStyle" value="Date" />
		<param name="DatePattern" value="'.'yyyy-MM-dd'.txt'" />
		<param name="RequestId" value="99" />

		<layout type="log4net.Layout.PatternLayout,log4net">
			<param name="ConversionPattern" value="%d [%t]
%-5p %c{1} - %m%n" />
		</layout>
	</appender>
	
	<root>
		<level value="DEBUG" />
		<appender-ref ref="RollingLogFileAppender" />
	</root>

</log4net>


Based on the above my existing or today's log file name is
intserver.2010-02-09.txt where 2010-02-09is today's date


I have a dynamic variable which I need to set in C#. In case the value
for my dynamic variable is 1000, my log file should be
intserver.2010-02-09.1000.txt

Does any one know how this can be done?

Regards,
Leo

RE: Want to modify my existing log file name to include a dynamic variable value

[Alasdair Richardson <al...@jabcap.com>]

I wanted to do somehting similar, and used the fact that some log4net
parameters can be picked up from environment vars
 
so in my code I set an env var JCE_LOG_FILE
 
string logFile = dir + "\\" + AppName + "." + CurrentNTUser;
Environment.SetEnvironmentVariable("JCE_LOG_FILE", logFile);

Then configure log4net
 
    log4net.Config.XmlConfigurator.Configure(new FileInfo(configFile));

and in the config file
 
  <appender name="file" type="log4net.Appender.RollingFileAppender">
    <file value="${JCE_LOG_FILE}"/>
    <appendToFile value="true"/>
    <staticLogFileName value="false"/>
    <rollingStyle value="Date"/>
    <datePattern value=".yyyy-MM-dd&quot;.log&quot;"/>
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%date{ISO8601} [%thread] %-5level
%logger - %message%newline" />
    </layout>
  </appender>

Obviously to make this work you need to control yourself when you
configure log4net. Not sure how you would use this to get the actual
pattern you want - eg you would have to check if 'datePattern' can be
picked up from an env var. I tried to use JC_LOG_LEVEL to set the root
logging level and it didnt work ..
 
Alasdair
 

________________________________

	From: Leo Mathew [mailto:leo.m@sonata-software.com] 
	Sent: 09 February 2010 08:09
	To: Log4NET User
	Subject: Want to modify my existing log file name to include a
dynamic variable value
	
	

	

	Hi All,

	I want to modify my existing log file name to include a dynamic
variable value.

	Below is my log file.

	

	<?xml version="1.0" encoding="utf-8" ?>

	<log4net debug="false">

	        <appender name="RollingLogFileAppender"
type="log4net.Appender.RollingFileAppender,log4net">

	                <param name="File" value="logs\\intserver" />

	                <param name="AppendToFile" value="true" />

	                <param name="StaticLogFileName" value="False" />

	                <param name="RollingStyle" value="Date" />

	                <param name="DatePattern"
value="'.'yyyy-MM-dd'.txt'" />

	                <param name="RequestId" value="99" />

	                <layout
type="log4net.Layout.PatternLayout,log4net">

	                        <param name="ConversionPattern"
value="%d [%t] %-5p %c{1} - %m%n" />

	                </layout>

	        </appender>

	        

	        <root>

	                <level value="DEBUG" />

	                <appender-ref ref="RollingLogFileAppender" />

	        </root>

	</log4net>


	Based on the above my existing or today's log file name is
intserver.2010-02-09.txt where 2010-02-09is today's date


	I have a dynamic variable which I need to set in C#. In case the
value for my dynamic variable is 1000, my log file should be
intserver.2010-02-09.1000.txt

	Does any one know how this can be done?

	

	Regards,

	Leo

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