source: trunk/gsdl/perllib/plugins/ArcPlug.pm@ 433

# plugin which recurses through an archives.inf file
# (i.e. the file generated in the archives directory
# when an import is done), processing each file it finds 

package ArcPlug;

use util;
use BasPlug;
use plugin;
use arcinfo;

BEGIN {
    @ISA = ('BasPlug');
}

sub new {
    my ($class) = @_;
    my $self = new BasPlug ();

    return bless $self, $class;
}

# return 1 if this class might recurse using $pluginfo
sub is_recursive {
    my $self = shift (@_);

    return 1;
}

# return number of files processed, undef if can't process
# Note that $base_dir might be "" and that $file might 
# include directories
sub read {
    my $self = shift (@_);
    ($pluginfo, $base_dir, $file, $metadata, $processor, $maxdocs) = @_;

    my $count = 0;

    # see if this has a archives information file within it
    $archive_info_filename = &util::filename_cat($base_dir,$file,"archives.inf");

    if (-e $archive_info_filename) {

    # found an archives.inf file
    print STDERR "ArcPlug: processing $archive_info_filename\n";

    # read in the archives information file
    my $archive_info = new arcinfo ();
    $archive_info->load_info ($archive_info_filename);
    
    my $file_list = $archive_info->get_file_list();

    # process each file
    foreach $subfile (@$file_list) {
        last if (defined $maxdocs && $maxdocs =~ /\d/ && $count >= $maxdocs);

        my $tmp = &util::filename_cat ($file, $subfile->[0]);
        next if $tmp eq $file;
        # note: metadata is not carried on to the next level
        $count += &plugin::read ($pluginfo, $base_dir, $tmp, {}, $processor, $maxdocs);
    }

    return $count;
    }

    # wasn't an archives directory, someone else will have to process it
    return undef;
}

1;