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#-*- perl -*-
#
# Copyright (C) 2002,2003,2004 Ken'ichi Fukamachi
# All rights reserved. This program is free software; you can
# redistribute it and/or modify it under the same terms as Perl itself.
#
# $FML: Analyze.pm,v 1.26 2004/01/01 08:48:41 fukachan Exp $
#
package FML::Error::Analyze;
use strict;
use vars qw(@ISA @EXPORT @EXPORT_OK $AUTOLOAD);
use Carp;
use FML::Log qw(Log LogWarn LogError);
my $debug = 1;
=head1 NAME
FML::Error::Analyze - provide model specific analyzer routines.
=head1 SYNOPSIS
use FML::Error::Cache;
my $cache = new FML::Error::Cache $curproc;
my $rdata = $cache->get_all_values_as_hash_ref();
# $rdata format = {
# key1 => [ value1, value2, ... ],
# key2 => [ value1, value2, ... ],
# }
use FML::Error::Analyze;
my $analyzer = new FML::Error::Analyze $curproc;
$analyzer->$evaluator_function($curproc, $rdata);
=head1 DESCRIPTION
=head1 METHODS
=head2 new()
=cut
# Descriptions: standard constructor
# Arguments: OBJ($self) HASH_REF($curproc)
# Side Effects: none
# Return Value: OBJ
sub new
{
my ($self, $curproc) = @_;
my ($type) = ref($self) || $self;
my $me = { _curproc => $curproc };
return bless $me, $type;
}
=head1 METHODS
=head2 summary()
return summary of address and points as HASH_REF.
$summary = {
address1 => point,
address2 => point,
};
=head2 removal_address()
return addresses to be removed.
=cut
# Descriptions: return summary
# Arguments: OBJ($self)
# Side Effects: none
# Return Value: HASH_REF
sub summary
{
my ($self) = @_;
my $analyzer = $self->{ _analyzer };
if (defined $analyzer) {
return $analyzer->summary();
}
else {
return {};
}
}
# Descriptions: return removal address candidates
# Arguments: OBJ($self)
# Side Effects: none
# Return Value: ARRAY_REF
sub removal_address
{
my ($self) = @_;
my $analyzer = $self->{ _analyzer };
if (defined $analyzer) {
return $analyzer->removal_address();
}
else {
return [];
}
}
# Descriptions: print address and the status summary.
# Arguments: OBJ($self) STR($addr)
# Side Effects: none
# Return Value: none
sub print
{
my ($self, $addr) = @_;
my $analyzer = $self->{ _analyzer };
if (defined $analyzer) {
return $analyzer->print($addr);
}
}
=head2 AUTOLOAD()
the command dispatcher.
It hooks up the C<$command> request and loads the module in
C<FML::Command::$MODE::$command>.
=cut
# Descriptions: run FML::Error::Analyze::XXX()
# Arguments: OBJ($self) OBJ($curproc) HASH_REF($anal_data)
# Side Effects: load appropriate module
# Return Value: none
sub AUTOLOAD
{
my ($self, $curproc, $anal_data) = @_;
# we need to ignore DESTROY()
return if $AUTOLOAD =~ /DESTROY/;
my $fp = $AUTOLOAD;
$fp =~ s/.*:://;
my $pkg = "FML::Error::Analyze::${fp}";
$curproc->log("load $pkg") if 1; # debug
my $analyzer = undef;
eval qq{ use $pkg; \$analyzer = new $pkg;};
unless ($@) {
# run the actual process
if ($analyzer->can('process')) {
$analyzer->process($curproc, $anal_data);
$self->{ _analyzer } = $analyzer; # saved for further reference.
}
else {
$curproc->logerror("${pkg} has no process method");
}
}
else {
$curproc->logerror($@) if $@;
$curproc->logerror("$pkg module is not found");
croak("$pkg module is not found"); # upcall to FML::Error
}
}
=head1 $data STRUCTURE
C<$data> is passed to the error analyer function
C<FML::Error::Analyze::${fp}> (as $anal_data in AUTOLOAD()).
$data = {
address => [
error_info_1,
error_info_2, ...
]
};
where the error_info_* has error reasons (STR). $fp parses it, count
up. FML::Error or FML::Error::Analyze can retrieve the result via
summary() method.
=head1 CODING STYLE
See C<http://www.fml.org/software/FNF/> on fml coding style guide.
=head1 AUTHOR
Ken'ichi Fukamachi
=head1 COPYRIGHT
Copyright (C) 2002,2003,2004 Ken'ichi Fukamachi
All rights reserved. This program is free software; you can
redistribute it and/or modify it under the same terms as Perl itself.
=head1 HISTORY
FML::Error::Analyze first appeared in fml8 mailing list driver package.
See C<http://www.fml.org/> for more details.
=cut
1;
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