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Posted to log4j-user@logging.apache.org by Erik Price <ep...@ptc.com> on 2003/04/23 21:25:59 UTC
[OT] dynamically setting a logfile location
Hi,
I am using a fairly simply Log4J properties file to configure the
loggers in my application. The application itself, when fully built, is
an executable JAR for which I have written a simple shell script wrapper
to spare the user from having to remember all of the command line
parameters for calling a JAR. (Eventually I will write a batch script
for Win32.) This is also a very handy way for me to pass the URI of my
logfile, my command line is similar to this:
<allOneLine>
$JAVACMD "-Dlog4j.configuration=file:${OATMEAL_BIN}/distlog.properties"
-jar "${OATMEAL_LIB}/oatmeal.jar" $@
</allOneLine>
This is more a Java question than a Log4J question, but it seems
relevant since Log4J is a good example of software that doesn't require
you to hard-code properties into the code: I am wondering if there is
some way that I can pass the intended location of the FileAppender using
my wrapper script, so that instead of this:
log4j.appender.Append1.File=dist.log
I can do something like this:
lo4j.appender.Append1.File=${dist.log}
Any luck?
TIA,
Erik
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Re: [OT] dynamically setting a logfile location
Posted by Erik Price <ep...@ptc.com>.
Steve Ebersole wrote:
> Yes you can do that. For example:
>
> lo4j.appender.Append1.File=${OATMEAL_HOME}/logs/dist.log
>
> Or:
> export OATMEAL_LOG=${OATMEAL_HOME}/logs/dist.log
> and
> lo4j.appender.Append1.File=${OATMEAL_LOG}
Thanks Steve. Is this Log4J-specific, or can do this in any properties
file? It didn't say anything in the Properties Javadoc.
Erik
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Re: [OT] dynamically setting a logfile location
Posted by Steve Ebersole <st...@austin.rr.com>.
Yes you can do that. For example:
lo4j.appender.Append1.File=${OATMEAL_HOME}/logs/dist.log
Or:
export OATMEAL_LOG=${OATMEAL_HOME}/logs/dist.log
and
lo4j.appender.Append1.File=${OATMEAL_LOG}
HTH
----- Original Message -----
From: "Erik Price" <ep...@ptc.com>
To: "Log4J Users List" <lo...@jakarta.apache.org>
Sent: Wednesday, April 23, 2003 2:25 PM
Subject: [OT] dynamically setting a logfile location
> Hi,
>
> I am using a fairly simply Log4J properties file to configure the
> loggers in my application. The application itself, when fully built, is
> an executable JAR for which I have written a simple shell script wrapper
> to spare the user from having to remember all of the command line
> parameters for calling a JAR. (Eventually I will write a batch script
> for Win32.) This is also a very handy way for me to pass the URI of my
> logfile, my command line is similar to this:
>
> <allOneLine>
> $JAVACMD "-Dlog4j.configuration=file:${OATMEAL_BIN}/distlog.properties"
> -jar "${OATMEAL_LIB}/oatmeal.jar" $@
> </allOneLine>
>
> This is more a Java question than a Log4J question, but it seems
> relevant since Log4J is a good example of software that doesn't require
> you to hard-code properties into the code: I am wondering if there is
> some way that I can pass the intended location of the FileAppender using
> my wrapper script, so that instead of this:
>
> log4j.appender.Append1.File=dist.log
>
> I can do something like this:
>
> lo4j.appender.Append1.File=${dist.log}
>
>
> Any luck?
>
> TIA,
>
>
> Erik
>
>
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> To unsubscribe, e-mail: log4j-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: log4j-user-help@jakarta.apache.org
>
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Re: [OT] dynamically setting a logfile location
Posted by Erik Price <ep...@ptc.com>.
Jacob Kjome wrote:
>
> It should work fine if you set the "dist.log" system variable. This
> should work with property config files. I know it works with xml config
> files. The InitContextListener I wrote actually supports this so that
> you can just reference a system variable in your log4j.xml file for the
> FileAppender. The Javadoc explains how everything works. See the
> InitContextListener here...
Excellent, thanks Jacob.
Erik
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Re: [OT] dynamically setting a logfile location
Posted by Jacob Kjome <ho...@visi.com>.
It should work fine if you set the "dist.log" system variable. This should
work with property config files. I know it works with xml config
files. The InitContextListener I wrote actually supports this so that you
can just reference a system variable in your log4j.xml file for the
FileAppender. The Javadoc explains how everything works. See the
InitContextListener here...
http://cvs.apache.org/viewcvs/jakarta-log4j-sandbox/src/java/org/apache/log4j/servlet/
Jake
At 03:25 PM 4/23/2003 -0400, you wrote:
>Hi,
>
>I am using a fairly simply Log4J properties file to configure the loggers
>in my application. The application itself, when fully built, is an
>executable JAR for which I have written a simple shell script wrapper to
>spare the user from having to remember all of the command line parameters
>for calling a JAR. (Eventually I will write a batch script for
>Win32.) This is also a very handy way for me to pass the URI of my
>logfile, my command line is similar to this:
>
><allOneLine>
>$JAVACMD "-Dlog4j.configuration=file:${OATMEAL_BIN}/distlog.properties"
>-jar "${OATMEAL_LIB}/oatmeal.jar" $@
></allOneLine>
>
>This is more a Java question than a Log4J question, but it seems relevant
>since Log4J is a good example of software that doesn't require you to
>hard-code properties into the code: I am wondering if there is some way
>that I can pass the intended location of the FileAppender using my wrapper
>script, so that instead of this:
>
>log4j.appender.Append1.File=dist.log
>
>I can do something like this:
>
>lo4j.appender.Append1.File=${dist.log}
>
>
>Any luck?
>
>TIA,
>
>
>Erik
>
>
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>To unsubscribe, e-mail: log4j-user-unsubscribe@jakarta.apache.org
>For additional commands, e-mail: log4j-user-help@jakarta.apache.org