| 1 | ###########################################################################
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| 2 | #
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| 3 | # mgbuilder.pm -- MGBuilder object
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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 | package mgbuilder;
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| 27 |
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| 28 | use classify;
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| 29 | use cfgread;
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| 30 | use colcfg;
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| 31 | use plugin;
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| 32 | use util;
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| 33 |
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| 34 | $maxdocsize = 12000;
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| 35 |
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| 36 | %wanted_index_files = ('td'=>1,
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| 37 | 't'=>1,
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| 38 | 'idb'=>1,
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| 39 | 'ib1'=>1,
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| 40 | 'ib2'=>1,
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| 41 | 'ib3'=>1,
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| 42 | 'i'=>1,
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| 43 | 'ip'=>1,
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| 44 | 'tiw'=>1,
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| 45 | 'wa'=>1);
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| 46 |
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| 47 |
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| 48 | sub new {
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| 49 | my ($class, $collection, $source_dir, $build_dir,
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| 50 | $verbosity, $maxdocs, $allclassifications) = @_;
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| 51 |
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| 52 | # create an mgbuilder object
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| 53 | my $self = bless {'collection'=>$collection,
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| 54 | 'source_dir'=>$source_dir,
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| 55 | 'build_dir'=>$build_dir,
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| 56 | 'verbosity'=>$verbosity,
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| 57 | 'maxdocs'=>$maxdocs,
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| 58 | 'allclassifications'=>$allclassifications,
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| 59 | 'notbuilt'=>[] # indexes not built
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| 60 | }, $class;
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| 61 |
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| 62 |
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| 63 | # read in the collection configuration file
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| 64 | my $colcfgname = "$ENV{'GSDLCOLLECTDIR'}/etc/collect.cfg";
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| 65 | if (!-e $colcfgname) {
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| 66 | die "mgbuilder::new - couldn't find collect.cfg for collection $collection\n";
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| 67 | }
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| 68 | $self->{'collect_cfg'} = &colcfg::read_collect_cfg ($colcfgname);
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| 69 |
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| 70 | # sort out subcollection indexes
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| 71 | if (defined $self->{'collect_cfg'}->{'indexsubcollections'}) {
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| 72 | my $indexes = $self->{'collect_cfg'}->{'indexes'};
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| 73 | $self->{'collect_cfg'}->{'indexes'} = [];
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| 74 | foreach $subcollection (@{$self->{'collect_cfg'}->{'indexsubcollections'}}) {
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| 75 | foreach $index (@$indexes) {
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| 76 | push (@{$self->{'collect_cfg'}->{'indexes'}}, "$index:$subcollection");
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| 77 | }
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| 78 | }
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| 79 | }
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| 80 |
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| 81 | # sort out language subindexes
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| 82 | if (defined $self->{'collect_cfg'}->{'languages'}) {
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| 83 | my $indexes = $self->{'collect_cfg'}->{'indexes'};
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| 84 | $self->{'collect_cfg'}->{'indexes'} = [];
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| 85 | foreach $language (@{$self->{'collect_cfg'}->{'languages'}}) {
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| 86 | foreach $index (@$indexes) {
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| 87 | push (@{$self->{'collect_cfg'}->{'indexes'}}, "$index:$language");
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| 88 | }
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| 89 | }
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| 90 | }
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| 91 |
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| 92 | # get the list of plugins for this collection
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| 93 | my @plugins = (); # some good choice of plugins .... ????
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| 94 | if (defined $self->{'collect_cfg'}->{'plugins'}) {
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| 95 | @plugins = @{$self->{'collect_cfg'}->{'plugins'}};
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| 96 | }
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| 97 |
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| 98 |
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| 99 | # load all the plugins
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| 100 | $self->{'pluginfo'} = &plugin::load_plugins ($collection, \@plugins);
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| 101 | if (scalar(@{$self->{'pluginfo'}}) == 0) {
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| 102 | print STDERR "No plugins were loaded.\n";
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| 103 | die "\n";
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| 104 | }
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| 105 |
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| 106 | # load all the classifiers
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| 107 | $self->{'classifiers'} = [];
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| 108 | if (open (COLCFG, $colcfgname)) {
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| 109 | while (defined ($line = &cfgread::read_cfg_line('mgbuilder::COLCFG'))) {
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| 110 | if (scalar(@$line) >= 2) {
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| 111 | my $key = shift (@$line);
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| 112 | if ($key eq "classify") {
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| 113 | my $classinfo = &classify::load_classifier($line);
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| 114 | push (@{$self->{'classifiers'}}, $classinfo)
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| 115 | if defined $classinfo;
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| 116 | }
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| 117 | }
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| 118 | }
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| 119 | close (COLCFG);
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| 120 | } else {
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| 121 | print STDERR "mgbuilder::new couldn't read the cfg file $colcfgname\n";
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| 122 | print STDERR " no classifiers were loaded\n";
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| 123 | }
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| 124 |
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| 125 | # set the classifytype to use for displaying documents - if the doctype field hasn't
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| 126 | # been set in the collect.cfg then the receptionist currently defaults to displaying
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| 127 | # documents as 'Book'
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| 128 | if (open (COLCFG, $colcfgname)) {
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| 129 | while (defined ($line = &cfgread::read_cfg_line('mgbuilder::COLCFG'))) {
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| 130 | if (scalar(@$line) == 2) {
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| 131 | my $key = shift (@$line);
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| 132 | if ($key eq "doctype") {
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| 133 | $self->{'classifytype'} = shift (@$line);
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| 134 | }
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| 135 | }
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| 136 | }
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| 137 | close (COLCFG);
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| 138 | }
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| 139 |
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| 140 | # load up the document processor for building
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| 141 | # if a buildproc class has been created for this collection, use it
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| 142 | # otherwise, use the mg buildproc
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| 143 | my ($buildprocdir, $buildproctype);
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| 144 | if (-e "$ENV{'GSDLCOLLECTDIR'}/perllib/${collection}buildproc.pm") {
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| 145 | $buildprocdir = "$ENV{'GSDLCOLLECTDIR'}/perllib";
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| 146 | $buildproctype = "${collection}buildproc";
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| 147 | } else {
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| 148 | $buildprocdir = "$ENV{'GSDLHOME'}/perllib";
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| 149 | $buildproctype = "mgbuildproc";
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| 150 | }
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| 151 | require "$buildprocdir/$buildproctype.pm";
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| 152 |
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| 153 | eval("\$self->{'buildproc'} = new $buildproctype(\$collection, " .
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| 154 | "\$source_dir, \$build_dir, \$verbosity)");
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| 155 | die "$@" if $@;
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| 156 |
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| 157 |
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| 158 | return $self;
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| 159 | }
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| 160 |
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| 161 | sub init {
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| 162 | my $self = shift (@_);
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| 163 |
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| 164 | # remove any old builds
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| 165 | &util::rm_r($self->{'build_dir'});
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| 166 | &util::mk_all_dir($self->{'build_dir'});
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| 167 |
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| 168 | # make the text directory
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| 169 | my $textdir = "$self->{'build_dir'}/text";
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| 170 | &util::mk_all_dir($textdir);
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| 171 | }
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| 172 |
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| 173 | sub compress_text {
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| 174 | my $self = shift (@_);
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| 175 | my ($textindex) = @_;
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| 176 | my $exedir = "$ENV{'GSDLHOME'}/bin/$ENV{'GSDLOS'}";
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| 177 | my $exe = &util::get_os_exe ();
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| 178 | my $mg_passes_exe = &util::filename_cat($exedir, "mg_passes$exe");
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| 179 | my $mg_compression_dict_exe = &util::filename_cat($exedir, "mg_compression_dict$exe");
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| 180 |
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| 181 | &util::mk_all_dir (&util::filename_cat($self->{'build_dir'}, "text"));
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| 182 | my $basefilename = "text/$self->{'collection'}";
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| 183 | my $fulltextprefix = &util::filename_cat ($self->{'build_dir'}, $basefilename);
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| 184 |
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| 185 | my $osextra = "";
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| 186 | if ($ENV{'GSDLOS'} =~ /^windows$/i) {
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| 187 | $fulltextprefix =~ s/\//\\/g;
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| 188 | } else {
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| 189 | $osextra = " -d /";
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| 190 | }
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| 191 |
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| 192 | print STDERR "\n*** creating the compressed text\n" if ($self->{'verbosity'} >= 1);
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| 193 |
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| 194 | # set up the document processor
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| 195 | $self->{'buildproc'}->set_output_handle ('mgbuilder::PIPEOUT');
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| 196 | $self->{'buildproc'}->set_mode ('text');
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| 197 | $self->{'buildproc'}->set_index ($textindex);
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| 198 | $self->{'buildproc'}->set_indexing_text (0);
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| 199 |
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| 200 | # collect the statistics for the text
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| 201 | # -b $maxdocsize sets the maximum document size to be 12 meg
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| 202 | print STDERR "\n collecting text statistics\n" if ($self->{'verbosity'} >= 1);
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| 203 | if (!-e "$mg_passes_exe" || !open (PIPEOUT,
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| 204 | "| $mg_passes_exe -f $fulltextprefix -b $maxdocsize -T1 $osextra")) {
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| 205 | die "mgbuilder::compress_text - couldn't run $mg_passes_exe\n";
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| 206 | }
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| 207 | $self->{'buildproc'}->reset();
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| 208 | &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
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| 209 | "", {}, $self->{'buildproc'}, $self->{'maxdocs'});
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| 210 | close (PIPEOUT);
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| 211 |
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| 212 | # create the compression dictionary
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| 213 | # the compression dictionary is built by assuming the stats are from a seed
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| 214 | # dictionary (-S), if a novel word is encountered it is spelled out (-H),
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| 215 | # and the resulting dictionary must be less than 5 meg with the most frequent
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| 216 | # words being put into the dictionary first (-2 -k 5120)
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| 217 | print STDERR "\n creating the compression dictionary\n" if ($self->{'verbosity'} >= 1);
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| 218 | if (!-e "$mg_compression_dict_exe") {
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| 219 | die "mgbuilder::compress_text - couldn't run $mg_compression_dict_exe\n";
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| 220 | }
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| 221 | system ("$mg_compression_dict_exe -f $fulltextprefix -S -H -2 -k 5120 $osextra");
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| 222 |
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| 223 | # compress the text
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| 224 | # -b $maxdocsize sets the maximum document size to be 12 meg
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| 225 | print STDERR "\n compressing the text\n" if ($self->{'verbosity'} >= 1);
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| 226 | if (!-e "$mg_passes_exe" || !open (PIPEOUT,
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| 227 | "| $mg_passes_exe -f $fulltextprefix -b $maxdocsize -T2 $osextra")) {
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| 228 | die "mgbuilder::compress_text - couldn't run $mg_passes_exe\n";
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| 229 | }
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| 230 | $self->{'buildproc'}->reset();
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| 231 | &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
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| 232 | "", {}, $self->{'buildproc'}, $self->{'maxdocs'});
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| 233 | close (PIPEOUT);
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| 234 | }
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| 235 |
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| 236 | sub want_built {
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| 237 | my $self = shift (@_);
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| 238 | my ($index) = @_;
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| 239 |
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| 240 | if (defined ($self->{'collect_cfg'}->{'dontbuild'})) {
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| 241 | foreach $checkstr (@{$self->{'collect_cfg'}->{'dontbuild'}}) {
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| 242 | if ($index =~ /^$checkstr$/) {
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| 243 | push (@{$self->{'notbuilt'}}, $self->{'index_mapping'}->{$index});
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| 244 | return 0;
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| 245 | }
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| 246 | }
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| 247 | }
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| 248 |
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| 249 | return 1;
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| 250 | }
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| 251 |
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| 252 | sub build_indexes {
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| 253 | my $self = shift (@_);
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| 254 | my $indexes = $self->{'collect_cfg'}->{'indexes'};
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| 255 |
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| 256 | # create the mapping between the index descriptions
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| 257 | # and their directory names
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| 258 | $self->{'index_mapping'} = $self->create_index_mapping ($indexes);
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| 259 |
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| 260 | # build each of the indexes
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| 261 | foreach $index (@$indexes) {
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| 262 | if ($self->want_built($index)) {
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| 263 | print STDERR "\n*** building index $index in subdirectory " .
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| 264 | "$self->{'index_mapping'}->{$index}\n" if ($self->{'verbosity'} >= 1);
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| 265 | $self->build_index($index);
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| 266 | } else {
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| 267 | print STDERR "\n*** ignoring index $index\n" if ($self->{'verbosity'} >= 1);
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| 268 | }
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| 269 | }
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| 270 | }
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| 271 |
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| 272 | # creates directory names for each of the index descriptions
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| 273 | sub create_index_mapping {
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| 274 | my $self = shift (@_);
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| 275 | my ($indexes) = @_;
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| 276 |
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| 277 | my %mapping = ();
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| 278 | $mapping{'indexmaporder'} = [];
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| 279 | $mapping{'subcollectionmaporder'} = [];
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| 280 | $mapping{'languagemaporder'} = [];
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| 281 |
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| 282 | # dirnames is used to check for collisions. Start this off
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| 283 | # with the manditory directory names
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| 284 | my %dirnames = ('text'=>'text',
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| 285 | 'extra'=>'extra');
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| 286 | my %pnames = ('index' => '', 'subcollection' => '', 'languages' => '');
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| 287 |
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| 288 | foreach $index (@$indexes) {
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| 289 | my ($level, $gran, $subcollection, $languages) = split (":", $index);
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| 290 |
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| 291 | # the directory name starts with the first character of the index level
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| 292 | my ($pindex) = $level =~ /^(.)/;
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| 293 |
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| 294 | # next comes a processed version of the index
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| 295 | $pindex .= $self->process_field ($gran);
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| 296 | $pindex = lc ($pindex);
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| 297 |
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| 298 | # next comes a processed version of the subcollection if there is one.
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| 299 | my $psub = $self->process_field ($subcollection);
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| 300 | $psub = lc ($psub);
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| 301 |
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| 302 | # next comes a processed version of the language if there is one.
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| 303 | my $plang = $self->process_field ($languages);
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| 304 | $plang = lc ($plang);
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| 305 |
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| 306 | my $dirname = $pindex . $psub . $plang;
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| 307 |
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| 308 | # check to be sure all index names are unique
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| 309 | while (defined ($dirnames{$dirname})) {
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| 310 | $dirname = $self->make_unique (\%pnames, $index, \$pindex, \$psub, \$plang);
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| 311 | }
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| 312 |
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| 313 | # store the mapping orders as well as the maps
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| 314 | if (!defined $mapping{'indexmap'}{"$level:$gran"}) {
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| 315 | $mapping{'indexmap'}{"$level:$gran"} = $pindex;
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| 316 | push (@{$mapping{'indexmaporder'}}, "$level:$gran");
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| 317 | }
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| 318 | if ($psub =~ /\w/ && !defined ($mapping{'subcollectionmap'}{$subcollection})) {
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| 319 | $mapping{'subcollectionmap'}{$subcollection} = $psub;
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| 320 | push (@{$mapping{'subcollectionmaporder'}}, $subcollection);
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| 321 | }
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| 322 | if ($plang =~ /\w/ && !defined ($mapping{'languagemap'}{$languages})) {
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| 323 | $mapping{'languagemap'}{$languages} = $plang;
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| 324 | push (@{$mapping{'languagemaporder'}}, $language);
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| 325 | }
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| 326 | $mapping{$index} = $dirname;
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| 327 | $dirnames{$dirname} = $index;
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| 328 | $pnames{'index'}{$pindex} = "$level:$gran";
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| 329 | $pnames{'subcollection'}{$psub} = $subcollection;
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| 330 | $pnames{'languages'}{$plang} = $languages;
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| 331 | }
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| 332 |
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| 333 | return \%mapping;
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| 334 | }
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| 335 |
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| 336 | # returns a processed version of a field.
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| 337 | # if the field has only one component the processed
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| 338 | # version will contain the first character and next consonant
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| 339 | # of that componant - otherwise it will contain the first
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| 340 | # character of the first two components
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| 341 | sub process_field {
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| 342 | my $self = shift (@_);
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| 343 | my ($field) = @_;
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| 344 |
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| 345 | return "" unless (defined ($field) && $field =~ /\w/);
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| 346 |
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| 347 | my @components = split /,/, $field;
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| 348 | if (scalar @components >= 2) {
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| 349 | splice (@components, 2);
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| 350 | map {s/^(.).*$/$1/;} @components;
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| 351 | return join("", @components);
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| 352 | } else {
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| 353 | my ($a, $b) = $field =~ /^(.).*?([bcdfghjklmnpqrstvwxyz])/i;
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| 354 | ($a, $b) = $field =~ /^(.)(.)/ unless defined $a && defined $b;
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| 355 | return "$a$b";
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| 356 | }
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| 357 | }
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| 358 |
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| 359 | sub make_unique {
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| 360 | my $self = shift (@_);
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| 361 | my ($namehash, $index, $indexref, $subref, $langref) = @_;
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| 362 | my ($level, $gran, $subcollection, $languages) = split (":", $index);
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| 363 |
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| 364 | if ($namehash->{'index'}->{$$indexref} ne "$level:$gran") {
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| 365 | $self->get_next_version ($indexref);
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| 366 | } elsif ($namehash->{'subcollection'}->{$$subref} ne $subcollection) {
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| 367 | $self->get_next_version ($subref);
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| 368 | } elsif ($namehash->{'languages'}->{$$langref} ne $languages) {
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| 369 | $self->get_next_version ($langref);
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| 370 | }
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| 371 | return "$$indexref$$subref$$langref";
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| 372 | }
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| 373 |
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| 374 | sub get_next_version {
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| 375 | my $self = shift (@_);
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| 376 | my ($nameref) = @_;
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| 377 |
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| 378 | if ($$nameref =~ /(\d\d)$/) {
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| 379 | my $num = $1; $num ++;
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| 380 | $$nameref =~ s/\d\d$/$num/;
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| 381 | } elsif ($$nameref =~ /(\d)$/) {
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| 382 | my $num = $1;
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| 383 | if ($num == 9) {$$nameref =~ s/\d\d$/10/;}
|
|---|
| 384 | else {$num ++; $$nameref =~ s/\d$/$num/;}
|
|---|
| 385 | } else {
|
|---|
| 386 | $$nameref =~ s/.$/0/;
|
|---|
| 387 | }
|
|---|
| 388 | }
|
|---|
| 389 |
|
|---|
| 390 | sub build_index {
|
|---|
| 391 | my $self = shift (@_);
|
|---|
| 392 | my ($index) = @_;
|
|---|
| 393 |
|
|---|
| 394 | # get the full index directory path and make sure it exists
|
|---|
| 395 | my $indexdir = $self->{'index_mapping'}->{$index};
|
|---|
| 396 | &util::mk_all_dir (&util::filename_cat($self->{'build_dir'}, $indexdir));
|
|---|
| 397 | my $fullindexprefix = &util::filename_cat ($self->{'build_dir'}, $indexdir,
|
|---|
| 398 | $self->{'collection'});
|
|---|
| 399 | my $fulltextprefix = &util::filename_cat ($self->{'build_dir'}, "text",
|
|---|
| 400 | $self->{'collection'});
|
|---|
| 401 |
|
|---|
| 402 | # get any os specific stuff
|
|---|
| 403 | my $exedir = "$ENV{'GSDLHOME'}/bin/$ENV{'GSDLOS'}";
|
|---|
| 404 | my $exe = &util::get_os_exe ();
|
|---|
| 405 | my $mg_passes_exe = &util::filename_cat($exedir, "mg_passes$exe");
|
|---|
| 406 | my $mg_perf_hash_build_exe =
|
|---|
| 407 | &util::filename_cat($exedir, "mg_perf_hash_build$exe");
|
|---|
| 408 | my $mg_weights_build_exe =
|
|---|
| 409 | &util::filename_cat ($exedir, "mg_weights_build$exe");
|
|---|
| 410 | my $mg_invf_dict_exe =
|
|---|
| 411 | &util::filename_cat ($exedir, "mg_invf_dict$exe");
|
|---|
| 412 | my $mg_stem_idx_exe =
|
|---|
| 413 | &util::filename_cat ($exedir, "mg_stem_idx$exe");
|
|---|
| 414 |
|
|---|
| 415 | my $osextra = "";
|
|---|
| 416 | if ($ENV{'GSDLOS'} =~ /^windows$/i) {
|
|---|
| 417 | $fullindexprefix =~ s/\//\\/g;
|
|---|
| 418 | } else {
|
|---|
| 419 | $osextra = " -d /";
|
|---|
| 420 | }
|
|---|
| 421 |
|
|---|
| 422 | # get the index level from the index description
|
|---|
| 423 | # the index will be level 2 unless we are building a
|
|---|
| 424 | # paragraph level index
|
|---|
| 425 | my $index_level = 2;
|
|---|
| 426 | $index_level = 3 if $index =~ /^paragraph/i;
|
|---|
| 427 |
|
|---|
| 428 | # get the index expression if this index belongs
|
|---|
| 429 | # to a subcollection
|
|---|
| 430 | my $indexexparr = [];
|
|---|
| 431 | my ($level, $fields, $subcollection) = split (":", $index);
|
|---|
| 432 | my @subcollections = ();
|
|---|
| 433 | @subcollections = split /,/, $subcollection if (defined $subcollection);
|
|---|
| 434 |
|
|---|
| 435 | foreach $subcollection (@subcollections) {
|
|---|
| 436 | if (defined ($self->{'collect_cfg'}->{'subcollection'}->{$subcollection})) {
|
|---|
| 437 | push (@$indexexparr, $self->{'collect_cfg'}->{'subcollection'}->{$subcollection});
|
|---|
| 438 | }
|
|---|
| 439 | }
|
|---|
| 440 |
|
|---|
| 441 | # add expressions for languages if this index belongs to
|
|---|
| 442 | # a language subcollection
|
|---|
| 443 | foreach $language (@{$self->{'collect_cfg'}->{'languages'}}) {
|
|---|
| 444 | if ($language =~ s/^\!//) {
|
|---|
| 445 | push (@$indexexparr, "!Language/$language/");
|
|---|
| 446 | } else {
|
|---|
| 447 | push (@$indexexparr, "Language/$language/");
|
|---|
| 448 | }
|
|---|
| 449 | }
|
|---|
| 450 |
|
|---|
| 451 | # set up the document processor
|
|---|
| 452 | $self->{'buildproc'}->set_output_handle ('mgbuilder::PIPEOUT');
|
|---|
| 453 | $self->{'buildproc'}->set_mode ('text');
|
|---|
| 454 | $self->{'buildproc'}->set_index ($index, $indexexparr);
|
|---|
| 455 | $self->{'buildproc'}->set_indexing_text (1);
|
|---|
| 456 |
|
|---|
| 457 |
|
|---|
| 458 | # Build index dictionary. Uses verbatim stem method
|
|---|
| 459 | print STDERR "\n creating index dictionary\n" if ($self->{'verbosity'} >= 1);
|
|---|
| 460 | if (!-e "$mg_passes_exe" || !open (PIPEOUT,
|
|---|
| 461 | "| $mg_passes_exe -f $fullindexprefix -b $maxdocsize " .
|
|---|
| 462 | "-$index_level -m 32 -s 0 -G -t 10 -N1 $osextra")) {
|
|---|
| 463 | die "mgbuilder::build_index - couldn't run $mg_passes_exe\n";
|
|---|
| 464 | }
|
|---|
| 465 | $self->{'buildproc'}->reset();
|
|---|
| 466 | &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
|
|---|
| 467 | "", {}, $self->{'buildproc'}, $self->{'maxdocs'});
|
|---|
| 468 | close (PIPEOUT);
|
|---|
| 469 |
|
|---|
| 470 | # create the perfect hash function
|
|---|
| 471 | if (!-e "$mg_perf_hash_build_exe") {
|
|---|
| 472 | die "mgbuilder::build_index - couldn't run $mg_perf_hash_build_exe\n";
|
|---|
| 473 | }
|
|---|
| 474 | system ("$mg_perf_hash_build_exe -f $fullindexprefix $osextra");
|
|---|
| 475 |
|
|---|
| 476 | # invert the text
|
|---|
| 477 | print STDERR "\n inverting the text\n" if ($self->{'verbosity'} >= 1);
|
|---|
| 478 | if (!-e "$mg_passes_exe" || !open (PIPEOUT,
|
|---|
| 479 | "| $mg_passes_exe -f $fullindexprefix -b $maxdocsize " .
|
|---|
| 480 | "-$index_level -c 3 -G -t 10 -N2 $osextra")) {
|
|---|
| 481 | die "mgbuilder::build_index - couldn't run $mg_passes_exe\n";
|
|---|
| 482 | }
|
|---|
| 483 | $self->{'buildproc'}->reset();
|
|---|
| 484 | &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
|
|---|
| 485 | "", {}, $self->{'buildproc'}, $self->{'maxdocs'});
|
|---|
| 486 | close (PIPEOUT);
|
|---|
| 487 |
|
|---|
| 488 | # create the weights file
|
|---|
| 489 | print STDERR "\n create the weights file\n" if ($self->{'verbosity'} >= 1);
|
|---|
| 490 | if (!-e "$mg_weights_build_exe") {
|
|---|
| 491 | die "mgbuilder::build_index - couldn't run $mg_weights_build_exe\n";
|
|---|
| 492 | }
|
|---|
| 493 | system ("$mg_weights_build_exe -f $fullindexprefix -t $fulltextprefix $osextra");
|
|---|
| 494 |
|
|---|
| 495 | # create 'on-disk' stemmed dictionary
|
|---|
| 496 | print STDERR "\n creating 'on-disk' stemmed dictionary\n" if ($self->{'verbosity'} >= 1);
|
|---|
| 497 | if (!-e "$mg_invf_dict_exe") {
|
|---|
| 498 | die "mgbuilder::build_index - couldn't run $mg_invf_dict_exe\n";
|
|---|
| 499 | }
|
|---|
| 500 | system ("$mg_invf_dict_exe -f $fullindexprefix $osextra");
|
|---|
| 501 |
|
|---|
| 502 |
|
|---|
| 503 | # creates stem index files for the various stemming methods
|
|---|
| 504 | print STDERR "\n creating stem indexes\n" if ($self->{'verbosity'} >= 1);
|
|---|
| 505 | if (!-e "$mg_stem_idx_exe") {
|
|---|
| 506 | die "mgbuilder::build_index - couldn't run $mg_stem_idx_exe\n";
|
|---|
| 507 | }
|
|---|
| 508 | system ("$mg_stem_idx_exe -b 4096 -s1 -f $fullindexprefix $osextra");
|
|---|
| 509 | system ("$mg_stem_idx_exe -b 4096 -s2 -f $fullindexprefix $osextra");
|
|---|
| 510 | system ("$mg_stem_idx_exe -b 4096 -s3 -f $fullindexprefix $osextra");
|
|---|
| 511 |
|
|---|
| 512 |
|
|---|
| 513 | # remove unwanted files
|
|---|
| 514 | my $tmpdir = &util::filename_cat ($self->{'build_dir'}, $indexdir);
|
|---|
| 515 | opendir (DIR, $tmpdir) || die
|
|---|
| 516 | "mgbuilder::build_index - couldn't read directory $tmpdir\n";
|
|---|
| 517 | foreach $file (readdir(DIR)) {
|
|---|
| 518 | next if $file =~ /^\./;
|
|---|
| 519 | my ($suffix) = $file =~ /\.([^\.]+)$/;
|
|---|
| 520 | if (defined $suffix && !defined $wanted_index_files{$suffix}) {
|
|---|
| 521 | # delete it!
|
|---|
| 522 | # print STDERR "deleting $file\n";
|
|---|
| 523 | &util::rm (&util::filename_cat ($tmpdir, $file));
|
|---|
| 524 | }
|
|---|
| 525 | }
|
|---|
| 526 | closedir (DIR);
|
|---|
| 527 | }
|
|---|
| 528 |
|
|---|
| 529 | sub make_infodatabase {
|
|---|
| 530 | my $self = shift (@_);
|
|---|
| 531 | my $textdir = &util::filename_cat($self->{'build_dir'}, "text");
|
|---|
| 532 | &util::mk_all_dir ($textdir);
|
|---|
| 533 |
|
|---|
| 534 | # get db name
|
|---|
| 535 | my $dbext = ".bdb";
|
|---|
| 536 | $dbext = ".ldb" if &util::is_little_endian();
|
|---|
| 537 | my $fulldbname = &util::filename_cat ($textdir, "$self->{'collection'}$dbext");
|
|---|
| 538 | $fulldbname =~ s/\//\\/g if ($ENV{'GSDLOS'} =~ /^windows$/i);
|
|---|
| 539 |
|
|---|
| 540 | my $exedir = "$ENV{'GSDLHOME'}/bin/$ENV{'GSDLOS'}";
|
|---|
| 541 | my $exe = &util::get_os_exe ();
|
|---|
| 542 | my $txt2db_exe = &util::filename_cat($exedir, "txt2db$exe");
|
|---|
| 543 |
|
|---|
| 544 | print STDERR "\n*** creating the info database\n" if ($self->{'verbosity'} >= 1);
|
|---|
| 545 |
|
|---|
| 546 | # init all the classifiers
|
|---|
| 547 | &classify::init_classifiers ($self->{'classifiers'});
|
|---|
| 548 |
|
|---|
| 549 | # set up the document processor
|
|---|
| 550 | $self->{'buildproc'}->set_output_handle ('mgbuilder::PIPEOUT');
|
|---|
| 551 | $self->{'buildproc'}->set_mode ('infodb');
|
|---|
| 552 | $self->{'buildproc'}->set_classifiers ($self->{'classifiers'});
|
|---|
| 553 | $self->{'buildproc'}->set_indexing_text (0);
|
|---|
| 554 |
|
|---|
| 555 | # create the infodatabase
|
|---|
| 556 | if (!-e "$txt2db_exe" || !open (PIPEOUT,
|
|---|
| 557 | "| $txt2db_exe $fulldbname")) {
|
|---|
| 558 | die "mgbuilder::make_infodatabase - couldn't run $txt2db_exe\n";
|
|---|
| 559 | }
|
|---|
| 560 | $self->{'buildproc'}->reset();
|
|---|
| 561 |
|
|---|
| 562 | if (defined $self->{'collect_cfg'}->{'collectionmeta'}) {
|
|---|
| 563 |
|
|---|
| 564 | if (!defined $self->{'index_mapping'}) {
|
|---|
| 565 | $self->{'index_mapping'} =
|
|---|
| 566 | $self->create_index_mapping ($self->{'collect_cfg'}->{'indexes'});
|
|---|
| 567 | }
|
|---|
| 568 |
|
|---|
| 569 | print PIPEOUT "[collection]\n";
|
|---|
| 570 |
|
|---|
| 571 | foreach $cmeta (keys (%{$self->{'collect_cfg'}->{'collectionmeta'}})) {
|
|---|
| 572 | if ($cmeta =~ s/^\.//) {
|
|---|
| 573 | if (defined $self->{'index_mapping'}->{$cmeta}) {
|
|---|
| 574 | print PIPEOUT "<$self->{'index_mapping'}->{$cmeta}>" .
|
|---|
| 575 | $self->{'collect_cfg'}->{'collectionmeta'}->{".$cmeta"} . "\n";
|
|---|
| 576 | } else {
|
|---|
| 577 | print STDERR "mgbuilder: warning bad collectionmeta option '$cmeta' - ignored\n";
|
|---|
| 578 | }
|
|---|
| 579 | } else {
|
|---|
| 580 | print PIPEOUT "<$cmeta>$self->{'collect_cfg'}->{'collectionmeta'}->{$cmeta}\n";
|
|---|
| 581 | }
|
|---|
| 582 | }
|
|---|
| 583 | print PIPEOUT "\n" . ('-' x 70) . "\n";
|
|---|
| 584 |
|
|---|
| 585 | }
|
|---|
| 586 |
|
|---|
| 587 |
|
|---|
| 588 | &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
|
|---|
| 589 | "", {}, $self->{'buildproc'}, $self->{'maxdocs'});
|
|---|
| 590 |
|
|---|
| 591 | # output classification information
|
|---|
| 592 | &classify::output_classify_info ($self->{'classifiers'}, 'mgbuilder::PIPEOUT',
|
|---|
| 593 | $self->{'allclassifications'});
|
|---|
| 594 |
|
|---|
| 595 | close (PIPEOUT);
|
|---|
| 596 | }
|
|---|
| 597 |
|
|---|
| 598 | sub make_auxiliary_files {
|
|---|
| 599 | my $self = shift (@_);
|
|---|
| 600 | my ($index);
|
|---|
| 601 | my %build_cfg = ();
|
|---|
| 602 |
|
|---|
| 603 | print STDERR "\n*** creating auxiliary files \n" if ($self->{'verbosity'} >= 1);
|
|---|
| 604 |
|
|---|
| 605 | # get the text directory
|
|---|
| 606 | &util::mk_all_dir ($self->{'build_dir'});
|
|---|
| 607 |
|
|---|
| 608 | # store the build date
|
|---|
| 609 | $build_cfg->{'builddate'} = time;
|
|---|
| 610 |
|
|---|
| 611 | # store the number of documents and number of bytes
|
|---|
| 612 | $build_cfg->{'numdocs'} = $self->{'buildproc'}->get_num_docs();
|
|---|
| 613 | $build_cfg->{'numbytes'} = $self->{'buildproc'}->get_num_bytes();
|
|---|
| 614 |
|
|---|
| 615 | # store the mapping between the index names and the directory names
|
|---|
| 616 | my @indexmap = ();
|
|---|
| 617 | foreach $index (@{$self->{'index_mapping'}->{'indexmaporder'}}) {
|
|---|
| 618 | push (@indexmap, "$index\-\>$self->{'index_mapping'}->{'indexmap'}->{$index}");
|
|---|
| 619 | }
|
|---|
| 620 | $build_cfg->{'indexmap'} = \@indexmap;
|
|---|
| 621 |
|
|---|
| 622 | my @subcollectionmap = ();
|
|---|
| 623 | foreach $subcollection (@{$self->{'index_mapping'}->{'subcollectionmaporder'}}) {
|
|---|
| 624 | push (@subcollectionmap, "$subcollection\-\>" .
|
|---|
| 625 | $self->{'index_mapping'}->{'subcollectionmap'}->{$subcollection});
|
|---|
| 626 | }
|
|---|
| 627 | $build_cfg->{'subcollectionmap'} = \@subcollectionmap if scalar (@subcollectionmap);
|
|---|
| 628 |
|
|---|
| 629 | my @languagemap = ();
|
|---|
| 630 | foreach $language (@{$self->{'index_mapping'}->{'languagemaporder'}}) {
|
|---|
| 631 | push (@languagemap, "$language\-\>" .
|
|---|
| 632 | $self->{'index_mapping'}->{'languagemap'}->{$language});
|
|---|
| 633 | }
|
|---|
| 634 | $build_cfg->{'languagemap'} = \@languagemap if scalar (@languagemap);
|
|---|
| 635 |
|
|---|
| 636 | $build_cfg->{'notbuilt'} = $self->{'notbuilt'};
|
|---|
| 637 |
|
|---|
| 638 | # write out the build information
|
|---|
| 639 | &cfgread::write_cfg_file("$self->{'build_dir'}/build.cfg", $build_cfg,
|
|---|
| 640 | '^(builddate|numdocs|numbytes)$', '^(indexmap|subcollectionmap|languagemap|notbuilt)$');
|
|---|
| 641 |
|
|---|
| 642 | }
|
|---|
| 643 |
|
|---|
| 644 | sub deinit {
|
|---|
| 645 | my $self = shift (@_);
|
|---|
| 646 | }
|
|---|
| 647 |
|
|---|
| 648 |
|
|---|
| 649 | 1;
|
|---|
| 650 |
|
|---|
| 651 |
|
|---|
