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.\"
.IX Title "JavaMap 3pm"
.TH JavaMap 3pm "2010-07-21" "perl v5.10.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
Log::Log4perl::JavaMap \- maps java log4j appenders to Log::Dispatch classes
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 4
\&     ###############################
\&     log4j.appender.FileAppndr1        = org.apache.log4j.FileAppender
\&     log4j.appender.FileAppndr1.File   = /var/log/onetime.log
\&     log4j.appender.FileAppndr1.Append = false
\&
\&     log4j.appender.FileAppndr1.layout = org.apache.log4j.PatternLayout
\&     log4j.appender.FileAppndr1.layout.ConversionPattern=%d %4r [%t] %\-5p %c %x \- %m%n
\&     ###############################
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
If somebody wants to create an appender called \f(CW\*(C`org.apache.log4j.ConsoleAppender\*(C'\fR,
we want to translate it to Log::Dispatch::Screen, and then translate
the log4j options into Log::Dispatch parameters..
.SS "What's Implemented"
.IX Subsection "What's Implemented"
(Note that you can always use the Log::Dispatch::* module.  By 'implemented'
I mean having a translation class that translates log4j options into
the Log::Dispatch options so you can use log4j rather than log4perl 
syntax in your config file.)
.PP
Here's the list of appenders I see on the current (6/2002) log4j site.
.PP
These are implemented
.PP
.Vb 6
\&    ConsoleAppender     \- Log::Dispatch::Screen
\&    FileAppender        \- Log::Dispatch::File
\&    RollingFileAppender \- Log::Dispatch::FileRotate (by Mark Pfeiffer)
\&    JDBCAppender        \- Log::Log4perl::Appender::DBI
\&    SyslogAppender      \- Log::Dispatch::Syslog
\&    NTEventLogAppender  \- Log::Dispatch::Win32EventLog
.Ve
.PP
These should/will/might be implemented
.PP
.Vb 2
\&    DailyRollingFileAppender \- 
\&    SMTPAppender     \- Log::Dispatch::Email::MailSender
.Ve
.PP
These might be implemented but they don't have corresponding classes
in Log::Dispatch (yet):
.PP
.Vb 2
\&    NullAppender
\&    TelnetAppender
.Ve
.PP
These might be simulated
.PP
.Vb 2
\&    LF5Appender \- use Tk?
\&    ExternallyRolledFileAppender \- catch a HUP instead?
.Ve
.PP
These will probably not be implemented
.PP
.Vb 4
\&    AsyncAppender
\&    JMSAppender
\&    SocketAppender \- (ships a serialized LoggingEvent to the server side)
\&    SocketHubAppender
.Ve
.SH "ROLL YOUR OWN"
.IX Header "ROLL YOUR OWN"
Let's say you've in a mixed Java/Perl enviroment and you've
come up with some custom Java appender with behavior you want to 
use in both worlds, \f(CW\*(C`myorg.customAppender\*(C'\fR.  You write a
Perl appender with the same behavior \f(CW\*(C`Myorg::CustomAppender\*(C'\fR. You
want to use one config file accross both applications, so the
config file will have to say 'myorg.customAppender'.  But
the mapping from \f(CW\*(C`myorg.customAppender\*(C'\fR to \f(CW\*(C`Myorg::CustomAppender\*(C'\fR
isn't in this JavaMap class, so what do you do?
.PP
In  your Perl code, before you call \fILog::Log4perl::init()\fR, do this:
.PP
.Vb 2
\&    $Log::Log4perl::JavaMap::user_defined{\*(Aqmyorg.customAppender\*(Aq} = 
\&        \*(AqMyorg::CustomAppender\*(Aq;
.Ve
.PP
and you can use 'myorg.customAppender' in your config file with
impunity.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
http://jakarta.apache.org/log4j/docs/
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
Copyright 2002\-2009 by Mike Schilli <m@perlmeister.com> 
and Kevin Goess <cpan@goess.org>.
.PP
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.