grf_loop

for my $grf ( @{$tz->{'graphs'}} ) {
    my $cljFilter =
        exists $grf->{'exclude'}
            ? do {
                my %excl = map {$_ => 1} @{$grf->{'exclude'}};
                sub {
                    ! exists( $excl{$_[0]} )
                }
              }
            : \&ALWAYS_TRUE;
    my $grfName = lc $grf->{'name'};
    $_->{'enabled'} = 1 for map $_->{$grfName}, grep exists($_->{$grfName}), map $_->{'graphs'}, @hosts{map lc($_), grep $cljFilter->($_), @{exists($grf->{'only_on'}) ? $grf->{'only_on'} : $cmnHostsList}};
}