I think you've got :-)
Jake
At 08:57 AM 10/9/2007, you wrote:
>Hi
>Thanks for the reply, so just let me know if i understood it correctly
>in myfirstwebapp i will have log4j.xml file as
><param name="File"
>value="${myfirstwebapp}\\log4jXmlFilter.log" />
>and in context listener i will set System.setProperty("myfirstwebapp",
>rootpath);
>
>and in mysecondwebapp i will have log4j.xml file as
><param name="File"
>value="${mysecondwebapp}\\log4jXmlFilter.log" />
>and in context listener i will set System.setProperty("mysecondwebapp",
>rootpath);
>
>does this look good
>
>On 10/8/07, Jacob Kjome <[EMAIL PROTECTED]> wrote:
>>
>> At 01:12 PM 10/8/2007, you wrote:
>> >
>> >http://java.sun.com/j2se/1.4.2/docs/api/java/lang/System.html#setPrope
>> >rty(java.lang.String,%20java.lang.String)
>> >
>> >Jake
>>
>> I guess I forgot to answer your second question. The answer to it is
>> found in the Javadoc for InitContextListener. You don't reference
>> just one single system property for all apps. System properties are
>> named for the name of the context of the application. For instance,
>> for an application context called "myapp", you would create a system
>> property called "myapp.log.home". For an application named
>> "myotherapp", you'd create a system property called
>> "myotherapp.log.home". What my code does is, at application startup,
>> look up the name of the context and append ".log.home" to it to
>> create the system property name and then looks up the file system
>> location of the app. You can override this dynamic path in web.xml
>> (or server-specific descriptor, such as context.xml in Tomcat). By
>> default, the path would be in a "logs" directory under the WEB-INF
>> directory of your webapp (assuming it is deployed as an exploded archive).
>>
>> Please read the Javadoc I pointed to previously for an explanation of
>> all of this.
>>
>> Jake
>>
>> >
>> >On Mon, 8 Oct 2007 12:13:49 -0400
>> > "Ashish Kulkarni" <[EMAIL PROTECTED]> wrote:
>> >> Hi
>> >> I was also thinking along to way,
>> >> but how did you set up System property in java for example if in my
>> >> log4j.xml file i set
>> >> <param name="File"
>> >> value="${mywebapp}\\log4jXmlFilter.log" />
>> >> and in the Servlet Context listner, i will get the path to mywebapp
>> >> but how do i set it in java.. is there some thing like System.setPathor
>> >> some method to do so?
>> >> which is the right method.
>> >> Also will this cause issue if i have 2 -3 different
>> >> applications setting the same path, will it work
>> >> Is this path for same application or all the applications
>> >>
>> >>
>> >> Ashish
>> >>
>> >>
>> >> On 10/5/07, Jacob Kjome <[EMAIL PROTECTED]> wrote:
>> >>>
>> >>>
>> >>> Of course it is possible to set -D System properites using
>> Weblogic. You
>> >>> just
>> >>> have to have access to the startup script, which is not guaranteed.
>> >>>
>> >>> In any case, setting a system property does not fully solve the issue
>> >>> unless
>> >>> there is only a single app running on the server. When there is more
>> than
>> >>> one
>> >>> app, setting a single system property to point to a log file path
>> assumes
>> >>> that
>> >>> you want all apps using the system property to log to the same
>> >>> directory. The
>> >>> original request mentioned "I would prefer the log file to be under
>> the
>> >>> same
>> >>> folder application is installed".
>> >>>
>> >>> In fact, I wrote a servlet context listener that does exactly
>> this. It
>> >>> dynamically determines the path of the current webapp and sets a
>> system
>> >>> property according to a naming convention making it possible to
>> reference
>> >>> this
>> >>> system property in your webapp. I know it works under Tomcat, but I
>> can't
>> >>> guarantee it will work under other appservers because I haven't tested
>> >>> under
>> >>> other appservers. See....
>> >>>
>> >>> http://wiki.apache.org/logging-log4j/AppContainerLogging
>> >>>
>> >>> specifically, read the javadoc for InitContextListener...
>> >>>
>> >>>
>> >>>
>> >http://svn.apache.org/repos/asf/logging/sandbox/log4j/log4j_sandbox/ta
>> >gs/LOG4J_SANDBOX_ALPHA3/src/java/org/apache/log4j/servlet/InitContextL
>> >istener.java
>> >>>
>> >>>
>> >>> Jake
>> >>>
>> >>> On Thu, 4 Oct 2007 16:07:25 -0500
>> >>> "James A. N. Stauffer" <[EMAIL PROTECTED]> wrote:
>> >>> > I use Tomcat and I can set system properties. I would be very
>> >>> > surprise if you can't set system properties on WebLogic. This might
>> >>> > not work if you aren't given the rights to set system properties.
>> >>> >
>> >>> > On 10/4/07, Ashish Kulkarni <[EMAIL PROTECTED]> wrote:
>> >>> >> Hi
>> >>> >> But will this work in web application also, for example i am
>> installing
>> >>> >> software on web logic, or websphere, will this work
>> >>> >>
>> >>> >> Ashis
>> >>> >> On 10/4/07, James A. N. Stauffer <[EMAIL PROTECTED]> wrote:
>> >>> >> >
>> >>> >> > If you set a system property it can be used in your log4j.xml.
>> >>> >> > <param name="File" value="${log4jXmlFilter}"/>
>> >>> >> >
>> >>> >> > You your machine run java with -Dlog4jXmlFilter=C:/Documents and
>> >>> >> > Settings/Kulkara/My
>> >>> >> >
>> >>> >> >
>> >>>
>> >>>
>>
>>
>>>>Documents/ashish/code/workspace5.1M/version6300build12-00/log4jXmlFilter.log
>> >>> >> >
>> >>> >> > On 10/4/07, Ashish Kulkarni <[EMAIL PROTECTED]> wrote:
>> >>> >> > > Hi
>> >>> >> > > How do we set the log file location dyanamically in web
>> >>> application,
>> >>> >> > > Currently i am using log4j.xml file with following definiation,
>> >>> this
>> >>> >> > file is
>> >>> >> > > under WEB-INF file
>> >>> >> > > <appender name="A2" class="
>> >>> org.apache.log4j.DailyRollingFileAppender">
>> >>> >> > > <param name="File"
>> >>> >> > > value="C:\\Documents and Settings\\Kulkara\\My
>> >>> >> > >
>> >>> >> >
>> >>>
>> >>>
>> >>>Documents\\ashish\\code\\workspace5.1M\\version6300build12-00\\log4j
>> >XmlFilter.log"
>> >>> >> > > />
>> >>> >> > > ... </appender>
>> >>> >> > > and in load the this xml file in Servlet using
>> >>> >> > > String fileName = config.getInitParameter(log4j.xml);
>> >>> >> > > ServletContext oCtx = config.getServletContext();
>> >>> >> > > URL path = oCtx.getResource (fileName);
>> >>> >> > > DOMConfigurator.configure(path);
>> >>> >> > >
>> >>> >> > > But if i have to install this on unix, i have to change the
>> path,
>> >>> also
>> >>> >> > the
>> >>> >> > > server on which i will install this may not have the folder, so
>> i
>> >>> will
>> >>> >> > have
>> >>> >> > > to recreate a war file
>> >>> >> > > So is there a dynamic way of telling log4j the location and
>> name of
>> >>> log
>> >>> >> > > file? which can work on any system.
>> >>> >> > > i would prefer the log file to be under the same folder
>> application
>> >>> is
>> >>> >> > > installed
>> >>> >> > >
>> >>> >> > > Ashish
>> >>> >> > >
>> >>> >> >
>> >>> >> >
>> >>> >> > --
>> >>> >> > James A. N. Stauffer
>> http://www.geocities.com/stauffer_james/
>> >>> >> > Are you good? Take the test at http://www.livingwaters.com/good/
>> >>> >> >
>> >>> >> >
>> ---------------------------------------------------------------------
>> >>> >> > To unsubscribe, e-mail: [EMAIL PROTECTED]
>> >>> >> > For additional commands, e-mail:
>> [EMAIL PROTECTED]
>> >>> >> >
>> >>> >> >
>> >>> >>
>> >>> >
>> >>> >
>> >>> > --
>> >>> > James A. N. Stauffer http://www.geocities.com/stauffer_james/
>> >>> > Are you good? Take the test at http://www.livingwaters.com/good/
>> >>> >
>> >>> >
>> ---------------------------------------------------------------------
>> >>> > To unsubscribe, e-mail: [EMAIL PROTECTED]
>> >>> >For additional commands, e-mail: [EMAIL PROTECTED]
>> >>> >
>> >>> >
>> >>>
>> >>>
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>> >>>
>> >
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>> >
>> >
>> >
>>
>>
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