[537] | 1 | ###########################################################################
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| 2 | #
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| 3 | # ArcPlug.pm --
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| 4 | # A component of the Greenstone digital library software
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| 5 | # from the New Zealand Digital Library Project at the
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| 6 | # University of Waikato, New Zealand.
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| 7 | #
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| 8 | # Copyright (C) 1999 New Zealand Digital Library Project
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| 9 | #
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| 10 | # This program is free software; you can redistribute it and/or modify
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| 11 | # it under the terms of the GNU General Public License as published by
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| 12 | # the Free Software Foundation; either version 2 of the License, or
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| 13 | # (at your option) any later version.
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| 14 | #
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| 15 | # This program is distributed in the hope that it will be useful,
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| 16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 18 | # GNU General Public License for more details.
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| 19 | #
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| 20 | # You should have received a copy of the GNU General Public License
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| 21 | # along with this program; if not, write to the Free Software
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| 22 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 23 | #
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| 24 | ###########################################################################
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| 25 |
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[317] | 26 | # plugin which recurses through an archives.inf file
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| 27 | # (i.e. the file generated in the archives directory
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| 28 | # when an import is done), processing each file it finds
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[4] | 29 |
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| 30 | package ArcPlug;
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| 31 |
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| 32 | use util;
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| 33 | use BasPlug;
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| 34 | use plugin;
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| 35 | use arcinfo;
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| 36 |
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| 37 | BEGIN {
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| 38 | @ISA = ('BasPlug');
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| 39 | }
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| 40 |
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[1279] | 41 | use strict;
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| 42 |
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[4] | 43 | sub new {
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| 44 | my ($class) = @_;
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[1279] | 45 | my $self = new BasPlug ("ArcPlug", @_);
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[4] | 46 |
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| 47 | return bless $self, $class;
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| 48 | }
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| 49 |
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| 50 | # return 1 if this class might recurse using $pluginfo
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| 51 | sub is_recursive {
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| 52 | my $self = shift (@_);
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| 53 |
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| 54 | return 1;
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| 55 | }
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| 56 |
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[317] | 57 | # return number of files processed, undef if can't process
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[4] | 58 | # Note that $base_dir might be "" and that $file might
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| 59 | # include directories
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| 60 | sub read {
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| 61 | my $self = shift (@_);
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[1279] | 62 | my ($pluginfo, $base_dir, $file, $metadata, $processor, $maxdocs) = @_;
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[4] | 63 |
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[317] | 64 | my $count = 0;
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| 65 |
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[4] | 66 | # see if this has a archives information file within it
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[1279] | 67 | my $archive_info_filename = &util::filename_cat($base_dir,$file,"archives.inf");
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[4] | 68 |
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| 69 | if (-e $archive_info_filename) {
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| 70 |
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[317] | 71 | # found an archives.inf file
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| 72 | print STDERR "ArcPlug: processing $archive_info_filename\n";
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| 73 |
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[4] | 74 | # read in the archives information file
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| 75 | my $archive_info = new arcinfo ();
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| 76 | $archive_info->load_info ($archive_info_filename);
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| 77 |
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[230] | 78 | my $file_list = $archive_info->get_file_list();
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[4] | 79 |
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| 80 | # process each file
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[1279] | 81 | foreach my $subfile (@$file_list) {
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[809] | 82 | last if ($maxdocs != -1 && $count >= $maxdocs);
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[317] | 83 |
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[4] | 84 | my $tmp = &util::filename_cat ($file, $subfile->[0]);
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| 85 | next if $tmp eq $file;
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[317] | 86 | # note: metadata is not carried on to the next level
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| 87 | $count += &plugin::read ($pluginfo, $base_dir, $tmp, {}, $processor, $maxdocs);
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[4] | 88 | }
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| 89 |
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[317] | 90 | return $count;
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[4] | 91 | }
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| 92 |
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| 93 | # wasn't an archives directory, someone else will have to process it
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[317] | 94 | return undef;
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[4] | 95 | }
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| 96 |
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| 97 | 1;
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