NAME

       Lire::DlfCategoriser - Base class for analysers which produce extended DLF records.

SYNOPSIS

         use base qw/ Lire::DlfCategoriser /;

         sub categorise {
           my ( $self, $dlf ) = @_;

           # Adds the extended field to DLF.

           return;
         }

DESCRIPTION

       This package defines a base class that can be use for Lire::DlfAnalyser which writes to an
       ExtendedSchema. The categoriser only have to implement the categorise() method instead of
       the more generic analyse().

META INFORMATION METHODS

       The Lire::DlfCategoriser should implement the same meta-information methods than the
       Lire::DlfAnalyser (name(), src_schema(), dst_schema(), title(), description()).

IMPLEMENTATION METHODS

       The categoriser does its job using the initialise() and categorise() methods.

   analyse( $process, $config )
       The Lire::DlfCategoriser implements the analyse() method. It will run the query on the
       src_schema() using the correct filter and will call categorise() on each DLF returned. The
       extended fiels will then be written to dst_schema(). Errors should be reported by dying.

   initialise( $config )
       This method is called before the categorise() method is called.

       The $config parameter contains configuration data that was specified in the AnalysisJob
       for that analyser. To register configuration specification for you DlfCategoriser, you
       just need to define a configuration specification under the name analyser_name_properties.
       This should be either a RecordSpec or ObjectSpec.

   categorise( $dlf )
       Called one for each DLf records that should be categorised. The categoriser should add the
       extended fields directly to the $dlf hash reference.

   finalise( $config )
       This method is called after all the DLF records were categorised.

       The $config parameter contains configuration data that was specified in the AnalysisJob
       for that analyser. To register configuration specification for you DlfCategoriser, you
       just need to define a configuration specification under the name analyser_name_properties.
       This should be either a RecordSpec or ObjectSpec.

       The default implementation does nothing.

SEE ALSO

       Lire::DlfAnalyserProcess(3pm), Lire::DlfStore(3pm), Lire::PluginManager(3pm),
       Lire::DlfAnalyser(3pm)

AUTHOR

       Francis J. Lacoste <flacoste@logreport.org>

VERSION

       $Id: DlfCategoriser.pm,v 1.6 2006/07/23 13:16:28 vanbaal Exp $

COPYRIGHT

       Copyright (C) 2004 Stichting LogReport Foundation LogReport@LogReport.org

       This file is part of Lire.

       Lire is free software; you can redistribute it and/or modify it under the terms of the GNU
       General Public License as published by the Free Software Foundation; either version 2 of
       the License, or (at your option) any later version.

       This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
       without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
       See the GNU General Public License for more details.

       You should have received a copy of the GNU General Public License along with this program
       (see COPYING); if not, check with http://www.gnu.org/copyleft/gpl.html.