I'm feeling some sort of 'O'Reilly tribute' <Saint Patty's just passed>

Happy St. Patty's (I'm actually a tad late, somewhere)

I have always found that to be an excellent log4perl article series, but as I refer to it I can't seem to see any reference to it. Here's a better source:

Variable Substitution (are you not a troll? :L)

" To avoid having to retype the same expressions over and over again, Log::Log4perl's configuration files support simple variable substitution. New variables are defined simply by adding 

    varname = value

[download]

lines to the configuration file before using 

    ${varname}

[download]
afterwards to recall the assigned values. Here's an example: 
    layout_class   = Log::Log4perl::Layout::PatternLayout
    layout_pattern = %d %F{1} %L> %m %n
    
    log4perl.category.Bar.Twix = WARN, Logfile, Screen

    log4perl.appender.Logfile  = Log::Log4perl::Appender::File
    log4perl.appender.Logfile.filename = test.log
    log4perl.appender.Logfile.layout = ${layout_class}
    log4perl.appender.Logfile.layout.ConversionPattern = ${layout_patt
+ern}

    log4perl.appender.Screen  = Log::Log4perl::Appender::Screen
    log4perl.appender.Screen.layout = ${layout_class}
    log4perl.appender.Screen.layout.ConversionPattern = ${layout_patte
+rn}

[download]

This is a convenient way to define two appenders with the same layout without having to retype the pattern definitions.

Update:

After rereading your post (I tend to do that) I think that perhaps this more inline with what you're getting at. This is analagous to writing log4perl eval statment - pick your favourite Templater for flavour. Kurt

Dirty Tricks Example (Sorry about the Troll comment :))

A simple example to cut-and-paste and get started: 

    use Log::Log4perl qw(get_logger);
    
    my $conf = q(
    log4perl.category.Bar.Twix         = WARN, Logfile
    log4perl.appender.Logfile          = Log::Log4perl::Appender::File
    log4perl.appender.Logfile.filename = test.log
    log4perl.appender.Logfile.layout = \
        Log::Log4perl::Layout::PatternLayout
    log4perl.appender.Logfile.layout.ConversionPattern = %d %F{1} %L> 
+%m %n
    );
    
    Log::Log4perl::init(\$conf);
    
    my $logger = get_logger("Bar::Twix");
    $logger->error("Blah");

[download]

This will log something like:

    2002/09/19 23:48:15 t1 25> Blah

[download]

to the log file 'test.log', which Log4perl will append to or create it if it doesn't exist already.

In reply to Re: Accessing Log::Log4perl Configuration Values by whereiskurt
in thread Accessing Log::Log4perl Configuration Values by valdez

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.