[537] | 1 | ###########################################################################
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| 2 | #
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| 3 | # arcinfo.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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| 26 |
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[4] | 27 | # This module stores information about the archives. At the moment
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| 28 | # this information just consists of the file name (relative to the
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| 29 | # directory the archives information file is in) and its OID.
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| 30 |
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| 31 | # This module assumes there is a one to one correspondance between
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| 32 | # a file in the archives directory and an OID.
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| 33 |
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| 34 | package arcinfo;
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| 35 |
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[10157] | 36 | use constant ORDER_OID_INDEX => 0;
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| 37 | use constant ORDER_SORT_INDEX => 1;
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| 38 |
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| 39 | use constant INFO_FILE_INDEX => 0;
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| 40 | use constant INFO_STATUS_INDEX => 1;
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| 41 |
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[28637] | 42 | use constant INFO_GROUPPOS_INDEX => 3;
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[15889] | 43 | use strict;
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| 44 |
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[21543] | 45 | use dbutil;
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[15889] | 46 |
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[21543] | 47 |
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[10157] | 48 | # File format read in: OID <tab> Filename <tab> Optional-Index-Status
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| 49 |
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| 50 | # Index status can be:
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| 51 | # I = Index for the first time
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| 52 | # R = Reindex
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| 53 | # D = Delete
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| 54 | # B = Been indexed
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| 55 |
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[4] | 56 | sub new {
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[21579] | 57 | my $class = shift(@_);
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| 58 | my $infodbtype = shift(@_);
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| 59 |
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| 60 | # If the infodbtype wasn't passed in, use the default from dbutil
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| 61 | if (!defined($infodbtype))
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| 62 | {
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| 63 | $infodbtype = &dbutil::get_default_infodb_type();
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| 64 | }
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| 65 |
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| 66 | my $self = {'infodbtype' => $infodbtype,
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| 67 | 'info'=>{},
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[19774] | 68 | 'reverse-info'=>{},
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[15073] | 69 | 'order'=>[],
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[27697] | 70 | 'reverse_sort'=>0,
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| 71 | 'sort'=>0};
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[4] | 72 |
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| 73 | return bless $self, $class;
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| 74 | }
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| 75 |
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[18441] | 76 | sub _load_info_txt
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| 77 | {
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[4] | 78 | my $self = shift (@_);
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| 79 | my ($filename) = @_;
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| 80 |
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[12328] | 81 | if (defined $filename && -e $filename) {
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[4] | 82 | open (INFILE, $filename) ||
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| 83 | die "arcinfo::load_info couldn't read $filename\n";
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| 84 |
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| 85 | my ($line, @line);
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| 86 | while (defined ($line = <INFILE>)) {
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| 87 | $line =~ s/\cM|\cJ//g; # remove end-of-line characters
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| 88 | @line = split ("\t", $line); # filename,
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| 89 | if (scalar(@line) >= 2) {
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[14] | 90 | $self->add_info (@line);
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[4] | 91 | }
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| 92 | }
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| 93 | close (INFILE);
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| 94 | }
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[18441] | 95 |
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| 96 |
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[4] | 97 | }
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| 98 |
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[21564] | 99 | sub _load_info_db
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[18441] | 100 | {
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[4] | 101 | my $self = shift (@_);
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| 102 | my ($filename) = @_;
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| 103 |
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[18441] | 104 | my $infodb_map = {};
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| 105 |
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[21579] | 106 | &dbutil::read_infodb_file($self->{'infodbtype'}, $filename, $infodb_map);
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[18441] | 107 |
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| 108 | foreach my $oid ( keys %$infodb_map ) {
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| 109 | my $vals = $infodb_map->{$oid};
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| 110 | # interested in doc-file and index-status
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| 111 |
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| 112 | my ($doc_file) = ($vals=~/^<doc-file>(.*)$/m);
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| 113 | my ($index_status) = ($vals=~/^<index-status>(.*)$/m);
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[20747] | 114 | my ($sortmeta) = ($vals=~/^<sort-meta>(.*)$/m);
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[28637] | 115 | my ($group_position) = ($vals=~/^<group-position>(.*)$/m);
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| 116 | $self->add_info ($oid,$doc_file,$index_status,$sortmeta, $group_position);
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[18441] | 117 | }
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| 118 | }
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| 119 |
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[19774] | 120 |
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[18441] | 121 | sub load_info {
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| 122 | my $self = shift (@_);
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| 123 | my ($filename) = @_;
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| 124 |
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| 125 | $self->{'info'} = {};
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| 126 |
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| 127 | if ((defined $filename) && (-e $filename)) {
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| 128 | if ($filename =~ m/\.inf$/) {
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| 129 | $self->_load_info_txt($filename);
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| 130 | }
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| 131 | else {
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[21564] | 132 | $self->_load_info_db($filename);
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[18441] | 133 | }
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| 134 | }
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| 135 | }
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| 136 |
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[21564] | 137 | sub _load_filelist_db
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[18441] | 138 | {
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| 139 | my $self = shift (@_);
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| 140 | my ($filename) = @_;
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| 141 |
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| 142 | my $infodb_map = {};
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| 143 |
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[21585] | 144 | &dbutil::read_infodb_file($self->{'infodbtype'}, $filename, $infodb_map);
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[18441] | 145 |
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| 146 | foreach my $file ( keys %$infodb_map ) {
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[28211] | 147 | # turn placeholders in the file keys of archiveinf-src file back to absolute paths
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| 148 | $file = &util::placeholders_to_abspath($file);
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[18456] | 149 | $self->{'prev_import_filelist'}->{$file} = 1;
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[18441] | 150 | }
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| 151 | }
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| 152 |
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| 153 |
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[18456] | 154 | sub load_prev_import_filelist {
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[18441] | 155 | my $self = shift (@_);
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| 156 | my ($filename) = @_;
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| 157 |
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| 158 | $self->{'import-filelist'} = {};
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| 159 |
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| 160 | if ((defined $filename) && (-e $filename)) {
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| 161 | if ($filename =~ m/\.inf$/) {
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| 162 | # e.g. 'archives-src.inf' (which includes complete list of file
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| 163 | # from last time import.pl was run)
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| 164 | $self->_load_info_txt($filename);
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| 165 | }
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| 166 | else {
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[21564] | 167 | $self->_load_filelist_db($filename);
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[18441] | 168 | }
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| 169 | }
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| 170 | }
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| 171 |
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[19774] | 172 | sub load_revinfo_UNTESTED
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| 173 | {
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| 174 | my $self = shift (@_);
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| 175 | my ($rev_filename) = @_;
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| 176 |
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| 177 | my $rev_infodb_map = {};
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| 178 |
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[21579] | 179 | &dbutil::read_infodb_file($self->{'infodbtype'}, $rev_filename, $rev_infodb_map);
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[19774] | 180 |
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| 181 | foreach my $srcfile ( keys %$rev_infodb_map ) {
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[28211] | 182 |
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[19774] | 183 | my $vals = $rev_infodb_map->{$srcfile};
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| 184 |
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[28211] | 185 | $srcfile = &util::abspath_to_placeholders($srcfile);
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| 186 |
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[19774] | 187 | foreach my $OID ($vals =~ m/^<oid>(.*)$/gm) {
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| 188 | $self->add_revinfo($srcfile,$OID);
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| 189 | }
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| 190 | }
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| 191 | }
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| 192 |
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| 193 |
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[18441] | 194 | sub _save_info_txt {
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| 195 | my $self = shift (@_);
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| 196 | my ($filename) = @_;
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| 197 |
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[14] | 198 | my ($OID, $info);
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[4] | 199 |
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| 200 | open (OUTFILE, ">$filename") ||
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| 201 | die "arcinfo::save_info couldn't write $filename\n";
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[7904] | 202 |
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[14] | 203 | foreach $info (@{$self->get_OID_list()}) {
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[4] | 204 | if (defined $info) {
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[14] | 205 | print OUTFILE join("\t", @$info), "\n";
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[4] | 206 | }
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| 207 | }
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| 208 | close (OUTFILE);
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| 209 | }
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| 210 |
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[21564] | 211 | sub _save_info_db {
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[18441] | 212 | my $self = shift (@_);
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| 213 | my ($filename) = @_;
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| 214 |
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[21857] | 215 | my $infodbtype = $self->{'infodbtype'};
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| 216 |
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[18441] | 217 | # Not the most efficient operation, but will do for now
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| 218 |
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| 219 | # read it in
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| 220 | my $infodb_map = {};
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[21857] | 221 | &dbutil::read_infodb_file($infodbtype, $filename, $infodb_map);
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[18441] | 222 |
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| 223 | # change index-status values
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| 224 | foreach my $info (@{$self->get_OID_list()}) {
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| 225 | if (defined $info) {
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| 226 | my ($oid,$doc_file,$index_status) = @$info;
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| 227 | if (defined $infodb_map->{$oid}) {
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| 228 | my $vals_ref = \$infodb_map->{$oid};
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| 229 | $$vals_ref =~ s/^<index-status>(.*)$/<index-status>$index_status/m;
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| 230 | }
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| 231 | else {
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| 232 | print STDERR "Warning: $filename does not have key $oid\n";
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| 233 | }
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| 234 | }
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| 235 | }
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| 236 |
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| 237 |
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| 238 | # write out again
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[21857] | 239 | my $infodb_handle = &dbutil::open_infodb_write_handle($infodbtype, $filename);
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[18441] | 240 | foreach my $oid ( keys %$infodb_map ) {
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[21857] | 241 | my $vals = $infodb_map->{$oid};
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| 242 | &dbutil::write_infodb_rawentry($infodbtype,$infodb_handle,$oid,$vals);
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[18441] | 243 | }
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[21857] | 244 | &dbutil::close_infodb_write_handle($infodbtype, $infodb_handle);
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[18441] | 245 |
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| 246 | }
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| 247 |
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[21564] | 248 | sub save_revinfo_db {
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[19774] | 249 | my $self = shift (@_);
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| 250 | my ($rev_filename) = @_;
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| 251 |
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| 252 | # Output reverse lookup database
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| 253 |
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| 254 | my $rev_infodb_map = $self->{'reverse-info'};
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| 255 | my $rev_infodb_handle
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[21579] | 256 | = &dbutil::open_infodb_write_handle($self->{'infodbtype'}, $rev_filename, "append");
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[19774] | 257 |
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| 258 | foreach my $key ( keys %$rev_infodb_map ) {
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| 259 | my $val_hash = $rev_infodb_map->{$key};
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[28211] | 260 |
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| 261 | $key = &util::abspath_to_placeholders($key);
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| 262 |
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[21579] | 263 | &dbutil::write_infodb_entry($self->{'infodbtype'}, $rev_infodb_handle, $key, $val_hash);
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[19774] | 264 | }
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[21579] | 265 | &dbutil::close_infodb_write_handle($self->{'infodbtype'}, $rev_infodb_handle);
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[19774] | 266 |
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| 267 | }
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| 268 |
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[18441] | 269 | sub save_info {
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| 270 | my $self = shift (@_);
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| 271 | my ($filename) = @_;
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[20537] | 272 | if ($filename =~ m/(contents)|(\.inf)$/) {
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[18441] | 273 | $self->_save_info_txt($filename);
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| 274 | }
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| 275 | else {
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[21564] | 276 | $self->_save_info_db($filename);
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[18441] | 277 | }
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| 278 | }
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| 279 |
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[14] | 280 | sub delete_info {
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| 281 | my $self = shift (@_);
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| 282 | my ($OID) = @_;
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| 283 |
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| 284 | if (defined $self->{'info'}->{$OID}) {
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| 285 | delete $self->{'info'}->{$OID};
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| 286 |
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| 287 | my $i = 0;
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| 288 | while ($i < scalar (@{$self->{'order'}})) {
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[10157] | 289 | if ($self->{'order'}->[$i]->[ORDER_OID_INDEX] eq $OID) {
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[14] | 290 | splice (@{$self->{'order'}}, $i, 1);
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| 291 | last;
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| 292 | }
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| 293 |
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| 294 | $i ++;
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| 295 | }
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| 296 | }
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| 297 | }
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| 298 |
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[4] | 299 | sub add_info {
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| 300 | my $self = shift (@_);
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[28637] | 301 | my ($OID, $doc_file, $index_status, $sortmeta, $group_position) = @_;
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[1287] | 302 | $sortmeta = "" unless defined $sortmeta;
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[10157] | 303 | $index_status = "I" unless defined $index_status; # I = needs indexing
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[3416] | 304 | if (! defined($OID)) {
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| 305 | # only happens when no files can be processed?
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| 306 | return undef;
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| 307 | }
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[10157] | 308 |
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[18469] | 309 | if (defined $self->{'info'}->{$OID}) {
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| 310 | # test to see if we are in a reindex situation
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| 311 |
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| 312 | my $existing_status_info = $self->get_status_info($OID);
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| 313 |
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| 314 | if ($existing_status_info eq "D") {
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| 315 | # yes, we're in a reindexing situation
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| 316 | $self->delete_info ($OID);
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| 317 |
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| 318 |
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| 319 | # force setting to "reindex"
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| 320 | $index_status = "R";
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| 321 |
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| 322 | }
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| 323 | else {
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| 324 | # some other, possibly erroneous, situation has arisen
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| 325 | # where the document already seems to exist
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| 326 | print STDERR "Warning: $OID already exists with index status $existing_status_info\n";
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| 327 | print STDERR " Deleting previous version\n";
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| 328 |
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| 329 | $self->delete_info ($OID);
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| 330 | }
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| 331 | }
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| 332 |
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[28637] | 333 | $self->{'info'}->{$OID} = [$doc_file,$index_status,$sortmeta, $group_position];
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[27697] | 334 | push (@{$self->{'order'}}, [$OID, $sortmeta]); # ORDER_OID_INDEX and ORDER_SORT_INDEX
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[18469] | 335 |
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| 336 |
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[4] | 337 | }
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| 338 |
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[10157] | 339 | sub set_status_info {
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[4] | 340 | my $self = shift (@_);
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[10157] | 341 | my ($OID, $index_status) = @_;
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[4] | 342 |
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[10157] | 343 | my $OID_info = $self->{'info'}->{$OID};
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| 344 | $OID_info->[INFO_STATUS_INDEX] = $index_status;
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| 345 | }
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| 346 |
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| 347 |
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| 348 | sub get_status_info {
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| 349 | my $self = shift (@_);
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| 350 | my ($OID) = @_;
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| 351 |
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| 352 | my $index_status = undef;
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| 353 |
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| 354 | my $OID_info = $self->{'info'}->{$OID};
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| 355 | if (defined $OID_info) {
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| 356 | $index_status = $OID_info->[INFO_STATUS_INDEX];
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| 357 | }
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| 358 | else {
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| 359 | die "Unable to find document id $OID\n";
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| 360 | }
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| 361 |
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| 362 | return $index_status;
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| 363 |
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| 364 | }
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| 365 |
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[28637] | 366 | sub get_group_position {
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| 367 | my $self = shift (@_);
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| 368 | my ($OID) = @_;
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[19774] | 369 |
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[28637] | 370 | my $group_position = undef;
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| 371 | my $OID_info = $self->{'info'}->{$OID};
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| 372 | if (defined $OID_info) {
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| 373 | $group_position = $OID_info->[INFO_GROUPPOS_INDEX];
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| 374 | }
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| 375 | else {
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| 376 | die "Unable to find document id $OID\n";
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| 377 | }
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| 378 | return $group_position;
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| 379 |
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| 380 | }
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[19774] | 381 | sub add_reverseinfo {
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| 382 | my $self = shift (@_);
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| 383 | my ($key, $OID) = @_;
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| 384 |
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| 385 | my $existing_key = $self->{'reverse-info'}->{$key};
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| 386 | if (!defined $existing_key) {
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| 387 | $existing_key = {};
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| 388 | $self->{'reverse-info'}->{$key} = $existing_key;
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| 389 | }
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| 390 |
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| 391 | my $existing_oid = $existing_key->{'oid'};
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| 392 | if (!defined $existing_oid) {
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| 393 | $existing_oid = [];
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| 394 | $existing_key->{'oid'} = $existing_oid;
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| 395 | }
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| 396 |
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| 397 | push(@$existing_oid,$OID);
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| 398 | }
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| 399 |
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[20802] | 400 | sub set_meta_file_flag {
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| 401 | my $self = shift (@_);
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| 402 | my ($key) = @_;
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[19774] | 403 |
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[20802] | 404 | my $existing_key = $self->{'reverse-info'}->{$key};
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| 405 | if (!defined $existing_key) {
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| 406 | $existing_key = {};
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| 407 | $self->{'reverse-info'}->{$key} = $existing_key;
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| 408 | }
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| 409 |
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| 410 | $existing_key->{'meta-file'} = ["1"];
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| 411 |
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| 412 | }
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[15073] | 413 | sub reverse_sort
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| 414 | {
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| 415 | my $self = shift(@_);
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| 416 | $self->{'reverse_sort'} = 1;
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| 417 | }
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[27697] | 418 | sub sort
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| 419 | {
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| 420 | my $self = shift(@_);
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| 421 | $self->{'sort'} = 1;
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| 422 | }
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[10157] | 423 |
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[27697] | 424 |
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[10157] | 425 | # returns a list of the form [[OID, doc_file, index_status], ...]
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| 426 | sub get_OID_list
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| 427 | {
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| 428 | my $self = shift (@_);
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| 429 |
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| 430 | my $order = $self->{'order'};
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| 431 |
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[15073] | 432 | my @sorted_order;
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| 433 | if ($self->{'reverse_sort'}) {
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| 434 | @sorted_order = sort {$b->[ORDER_SORT_INDEX] cmp $a->[ORDER_SORT_INDEX]} @$order;
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[27697] | 435 | } elsif ($self->{'sort'}) {
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[15073] | 436 | @sorted_order = sort {$a->[ORDER_SORT_INDEX] cmp $b->[ORDER_SORT_INDEX]} @$order;
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[27697] | 437 | } else { # not sorting, don't bother
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| 438 | @sorted_order = @$order;
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[15073] | 439 | }
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[10157] | 440 |
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[4] | 441 | my @list = ();
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| 442 |
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[10157] | 443 | foreach my $OID_order (@sorted_order) {
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| 444 | my $OID = $OID_order->[ORDER_OID_INDEX];
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| 445 | my $OID_info = $self->{'info'}->{$OID};
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| 446 |
|
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| 447 | push (@list, [$OID, $OID_info->[INFO_FILE_INDEX],
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| 448 | $OID_info->[INFO_STATUS_INDEX]]);
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[4] | 449 | }
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| 450 |
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| 451 | return \@list;
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| 452 | }
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| 453 |
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| 454 | # returns a list of the form [[doc_file, OID], ...]
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| 455 | sub get_file_list {
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| 456 | my $self = shift (@_);
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| 457 |
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[10157] | 458 | my $order = $self->{'order'};
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| 459 |
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[15073] | 460 | my @sorted_order;
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| 461 | if ($self->{'reverse_sort'}) {
|
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| 462 | @sorted_order = sort {$b->[ORDER_SORT_INDEX] cmp $a->[ORDER_SORT_INDEX]} @$order;
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[27697] | 463 | } elsif ($self->{'sort'}) {
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[15073] | 464 | @sorted_order = sort {$a->[ORDER_SORT_INDEX] cmp $b->[ORDER_SORT_INDEX]} @$order;
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[27697] | 465 | } else { # not sorting, don't bother
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| 466 | @sorted_order = @$order;
|
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[15073] | 467 | }
|
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[10157] | 468 |
|
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[4] | 469 | my @list = ();
|
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| 470 |
|
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[15889] | 471 | foreach my $OID_order (@sorted_order) {
|
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[10157] | 472 | my $OID = $OID_order->[ORDER_OID_INDEX];
|
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| 473 | my $OID_info = $self->{'info'}->{$OID};
|
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| 474 |
|
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| 475 | push (@list, [$OID_info->[INFO_FILE_INDEX], $OID]);
|
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[4] | 476 | }
|
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| 477 |
|
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| 478 | return \@list;
|
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| 479 | }
|
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| 480 |
|
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| 481 |
|
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[28637] | 482 | # returns a list of the form [doc_file,index_status,$sort_meta, $group_position]
|
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[4] | 483 | sub get_info {
|
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| 484 | my $self = shift (@_);
|
---|
| 485 | my ($OID) = @_;
|
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| 486 |
|
---|
| 487 | if (defined $self->{'info'}->{$OID}) {
|
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| 488 | return $self->{'info'}->{$OID};
|
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| 489 | }
|
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| 490 |
|
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| 491 | return undef;
|
---|
| 492 | }
|
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| 493 |
|
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| 494 |
|
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[20747] | 495 |
|
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[98] | 496 | # returns the number of documents so far
|
---|
| 497 | sub size {
|
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| 498 | my $self = shift (@_);
|
---|
| 499 | return (scalar(@{$self->{'order'}}));
|
---|
| 500 | }
|
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| 501 |
|
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[4] | 502 | 1;
|
---|
| 503 |
|
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