| 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 | use FileHandle;
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| 34 |
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| 35 | BEGIN {
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| 36 | # set autoflush on for STDERR and STDOUT so that mg
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| 37 | # doesn't get out of sync with plugins
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| 38 | STDOUT->autoflush(1);
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| 39 | STDERR->autoflush(1);
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| 40 | }
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| 41 |
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| 42 | END {
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| 43 | STDOUT->autoflush(0);
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| 44 | STDERR->autoflush(0);
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| 45 | }
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| 46 |
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| 47 | $maxdocsize = 12000;
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| 48 |
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| 49 | %wanted_index_files = ('td'=>1,
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| 50 | 't'=>1,
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| 51 | 'idb'=>1,
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| 52 | 'ib1'=>1,
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| 53 | 'ib2'=>1,
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| 54 | 'ib3'=>1,
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| 55 | 'i'=>1,
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| 56 | 'ip'=>1,
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| 57 | 'tiw'=>1,
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| 58 | 'wa'=>1);
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| 59 |
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| 60 |
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| 61 | sub new {
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| 62 | my ($class, $collection, $source_dir, $build_dir, $verbosity,
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| 63 | $maxdocs, $debug, $keepold, $allclassifications,
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| 64 | $outhandle, $no_text, $failhandle) = @_;
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| 65 |
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| 66 | $outhandle = STDERR unless defined $outhandle;
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| 67 | $no_text = 0 unless defined $no_text;
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| 68 | $failhandle = STDERR unless defined $failhandle;
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| 69 |
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| 70 | # create an mgbuilder object
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| 71 | my $self = bless {'collection'=>$collection,
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| 72 | 'source_dir'=>$source_dir,
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| 73 | 'build_dir'=>$build_dir,
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| 74 | 'verbosity'=>$verbosity,
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| 75 | 'maxdocs'=>$maxdocs,
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| 76 | 'debug'=>$debug,
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| 77 | 'keepold'=>$keepold,
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| 78 | 'allclassifications'=>$allclassifications,
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| 79 | 'outhandle'=>$outhandle,
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| 80 | 'no_text'=>$no_text,
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| 81 | 'failhandle'=>$failhandle,
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| 82 | 'notbuilt'=>[] # indexes not built
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| 83 | }, $class;
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| 84 |
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| 85 |
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| 86 | # read in the collection configuration file
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| 87 | my $colcfgname = "$ENV{'GSDLCOLLECTDIR'}/etc/collect.cfg";
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| 88 | if (!-e $colcfgname) {
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| 89 | die "mgbuilder::new - couldn't find collect.cfg for collection $collection\n";
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| 90 | }
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| 91 | $self->{'collect_cfg'} = &colcfg::read_collect_cfg ($colcfgname);
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| 92 |
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| 93 | # sort out subcollection indexes
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| 94 | if (defined $self->{'collect_cfg'}->{'indexsubcollections'}) {
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| 95 | my $indexes = $self->{'collect_cfg'}->{'indexes'};
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| 96 | $self->{'collect_cfg'}->{'indexes'} = [];
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| 97 | foreach $subcollection (@{$self->{'collect_cfg'}->{'indexsubcollections'}}) {
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| 98 | foreach $index (@$indexes) {
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| 99 | push (@{$self->{'collect_cfg'}->{'indexes'}}, "$index:$subcollection");
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| 100 | }
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| 101 | }
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| 102 | }
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| 103 |
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| 104 | # sort out language subindexes
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| 105 | if (defined $self->{'collect_cfg'}->{'languages'}) {
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| 106 | my $indexes = $self->{'collect_cfg'}->{'indexes'};
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| 107 | $self->{'collect_cfg'}->{'indexes'} = [];
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| 108 | foreach $language (@{$self->{'collect_cfg'}->{'languages'}}) {
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| 109 | foreach $index (@$indexes) {
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| 110 | if (defined ($self->{'collect_cfg'}->{'indexsubcollections'})) {
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| 111 | push (@{$self->{'collect_cfg'}->{'indexes'}}, "$index:$language");
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| 112 | }
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| 113 | else { # add in an empty subcollection field
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| 114 | push (@{$self->{'collect_cfg'}->{'indexes'}}, "$index\:\:$language");
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| 115 | }
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| 116 | }
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| 117 | }
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| 118 | }
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| 119 |
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| 120 | # make sure that the same index isn't specified more than once
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| 121 | my %tmphash = ();
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| 122 | my @tmparray = @{$self->{'collect_cfg'}->{'indexes'}};
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| 123 | $self->{'collect_cfg'}->{'indexes'} = [];
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| 124 | foreach my $i (@tmparray) {
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| 125 | if (!defined ($tmphash{$i})) {
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| 126 | push (@{$self->{'collect_cfg'}->{'indexes'}}, $i);
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| 127 | $tmphash{$i} = 1;
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| 128 | }
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| 129 | }
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| 130 |
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| 131 | # get the list of plugins for this collection
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| 132 | my $plugins = [];
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| 133 | if (defined $self->{'collect_cfg'}->{'plugin'}) {
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| 134 | $plugins = $self->{'collect_cfg'}->{'plugin'};
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| 135 | }
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| 136 |
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| 137 | # load all the plugins
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| 138 | $self->{'pluginfo'} = &plugin::load_plugins ($plugins, $verbosity, $outhandle, $failhandle);
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| 139 | if (scalar(@{$self->{'pluginfo'}}) == 0) {
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| 140 | print $outhandle "No plugins were loaded.\n";
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| 141 | die "\n";
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| 142 | }
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| 143 |
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| 144 | # get the list of classifiers for this collection
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| 145 | my $classifiers = [];
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| 146 | if (defined $self->{'collect_cfg'}->{'classify'}) {
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| 147 | $classifiers = $self->{'collect_cfg'}->{'classify'};
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| 148 | }
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| 149 |
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| 150 | # load all the classifiers
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| 151 | $self->{'classifiers'} = &classify::load_classifiers ($classifiers, $build_dir, $outhandle);
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| 152 |
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| 153 | # load up any dontgdbm fields
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| 154 | $self->{'dontgdbm'} = {};
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| 155 | if (defined ($self->{'collect_cfg'}->{'dontgdbm'})) {
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| 156 | foreach $dg (@{$self->{'collect_cfg'}->{'dontgdbm'}}) {
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| 157 | $self->{'dontgdbm'}->{$dg} = 1;
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| 158 | }
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| 159 | }
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| 160 |
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| 161 | # load up the document processor for building
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| 162 | # if a buildproc class has been created for this collection, use it
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| 163 | # otherwise, use the mg buildproc
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| 164 | my ($buildprocdir, $buildproctype);
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| 165 | if (-e "$ENV{'GSDLCOLLECTDIR'}/perllib/${collection}buildproc.pm") {
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| 166 | $buildprocdir = "$ENV{'GSDLCOLLECTDIR'}/perllib";
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| 167 | $buildproctype = "${collection}buildproc";
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| 168 | } else {
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| 169 | $buildprocdir = "$ENV{'GSDLHOME'}/perllib";
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| 170 | $buildproctype = "mgbuildproc";
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| 171 | }
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| 172 | require "$buildprocdir/$buildproctype.pm";
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| 173 |
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| 174 | eval("\$self->{'buildproc'} = new $buildproctype(\$collection, " .
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| 175 | "\$source_dir, \$build_dir, \$verbosity, \$outhandle)");
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| 176 | die "$@" if $@;
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| 177 |
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| 178 | return $self;
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| 179 | }
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| 180 |
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| 181 | sub init {
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| 182 | my $self = shift (@_);
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| 183 |
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| 184 | if (!$self->{'debug'} && !$self->{'keepold'}) {
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| 185 | # remove any old builds
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| 186 | &util::rm_r($self->{'build_dir'});
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| 187 | &util::mk_all_dir($self->{'build_dir'});
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| 188 |
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| 189 | # make the text directory
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| 190 | my $textdir = "$self->{'build_dir'}/text";
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| 191 | &util::mk_all_dir($textdir);
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| 192 | }
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| 193 | }
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| 194 |
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| 195 | sub compress_text {
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| 196 | my $self = shift (@_);
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| 197 | my ($textindex) = @_;
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| 198 | my $exedir = "$ENV{'GSDLHOME'}/bin/$ENV{'GSDLOS'}";
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| 199 | my $exe = &util::get_os_exe ();
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| 200 | my $mg_passes_exe = &util::filename_cat($exedir, "mg_passes$exe");
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| 201 | my $mg_compression_dict_exe = &util::filename_cat($exedir, "mg_compression_dict$exe");
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| 202 | my $outhandle = $self->{'outhandle'};
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| 203 |
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| 204 | &util::mk_all_dir (&util::filename_cat($self->{'build_dir'}, "text"));
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| 205 | my $basefilename = "text/$self->{'collection'}";
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| 206 | my $fulltextprefix = &util::filename_cat ($self->{'build_dir'}, $basefilename);
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| 207 |
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| 208 | my $osextra = "";
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| 209 | if ($ENV{'GSDLOS'} =~ /^windows$/i) {
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| 210 | $fulltextprefix =~ s@/@\\@g;
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| 211 | } else {
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| 212 | $osextra = " -d /";
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| 213 | }
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| 214 |
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| 215 | print $outhandle "\n*** creating the compressed text\n" if ($self->{'verbosity'} >= 1);
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| 216 |
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| 217 | # collect the statistics for the text
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| 218 | # -b $maxdocsize sets the maximum document size to be 12 meg
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| 219 | print $outhandle "\n collecting text statistics\n" if ($self->{'verbosity'} >= 1);
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| 220 |
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| 221 | my ($handle);
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| 222 | if ($self->{'debug'}) {
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| 223 | $handle = STDOUT;
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| 224 | } else {
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| 225 | if (!-e "$mg_passes_exe" ||
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| 226 | !open (PIPEOUT, "| mg_passes$exe -f \"$fulltextprefix\" -b $maxdocsize -T1 $osextra")) {
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| 227 | die "mgbuilder::compress_text - couldn't run $mg_passes_exe\n";
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| 228 | }
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| 229 | $handle = mgbuilder::PIPEOUT;
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| 230 | }
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| 231 |
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| 232 | $self->{'buildproc'}->set_output_handle ($handle);
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| 233 | $self->{'buildproc'}->set_mode ('text');
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| 234 | $self->{'buildproc'}->set_index ($textindex);
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| 235 | $self->{'buildproc'}->set_indexing_text (0);
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| 236 | if ($self->{'no_text'}) {
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| 237 | $self->{'buildproc'}->set_store_text(0);
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| 238 | } else {
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| 239 | $self->{'buildproc'}->set_store_text(1);
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| 240 | }
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| 241 | $self->{'buildproc'}->reset();
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| 242 | &plugin::begin($self->{'pluginfo'}, $self->{'source_dir'},
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| 243 | $self->{'buildproc'}, $self->{'maxdocs'});
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| 244 | &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
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| 245 | "", {}, $self->{'buildproc'}, $self->{'maxdocs'});
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| 246 | &plugin::end($self->{'pluginfo'});
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| 247 |
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| 248 | close ($handle) unless $self->{'debug'};
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| 249 |
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| 250 | $self->print_stats();
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| 251 |
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| 252 | # create the compression dictionary
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| 253 | # the compression dictionary is built by assuming the stats are from a seed
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| 254 | # dictionary (-S), if a novel word is encountered it is spelled out (-H),
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| 255 | # and the resulting dictionary must be less than 5 meg with the most frequent
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| 256 | # words being put into the dictionary first (-2 -k 5120)
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| 257 | if (!$self->{'debug'}) {
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| 258 | print $outhandle "\n creating the compression dictionary\n" if ($self->{'verbosity'} >= 1);
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| 259 | if (!-e "$mg_compression_dict_exe") {
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| 260 | die "mgbuilder::compress_text - couldn't run $mg_compression_dict_exe\n";
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| 261 | }
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| 262 | system ("mg_compression_dict$exe -f \"$fulltextprefix\" -S -H -2 -k 5120 $osextra");
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| 263 |
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| 264 | # -b $maxdocsize sets the maximum document size to be 12 meg
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| 265 | if (!-e "$mg_passes_exe" ||
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| 266 | !open ($handle, "| mg_passes$exe -f \"$fulltextprefix\" -b $maxdocsize -T2 $osextra")) {
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| 267 | die "mgbuilder::compress_text - couldn't run $mg_passes_exe\n";
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| 268 | }
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| 269 | }
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| 270 |
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| 271 | $self->{'buildproc'}->reset();
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| 272 | # compress the text
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| 273 | print $outhandle "\n compressing the text\n" if ($self->{'verbosity'} >= 1);
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| 274 | &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
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| 275 | "", {}, $self->{'buildproc'}, $self->{'maxdocs'});
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| 276 | close ($handle) unless $self->{'debug'};
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| 277 |
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| 278 | $self->print_stats();
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| 279 | }
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| 280 |
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| 281 | sub want_built {
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| 282 | my $self = shift (@_);
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| 283 | my ($index) = @_;
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| 284 |
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| 285 | if (defined ($self->{'collect_cfg'}->{'dontbuild'})) {
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| 286 | foreach $checkstr (@{$self->{'collect_cfg'}->{'dontbuild'}}) {
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| 287 | if ($index =~ /^$checkstr$/) {
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| 288 | push (@{$self->{'notbuilt'}}, $self->{'index_mapping'}->{$index});
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| 289 | return 0;
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| 290 | }
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| 291 | }
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| 292 | }
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| 293 |
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| 294 | return 1;
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| 295 | }
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| 296 |
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| 297 | sub build_indexes {
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| 298 | my $self = shift (@_);
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| 299 | my ($indexname) = @_;
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| 300 | my $outhandle = $self->{'outhandle'};
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| 301 |
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| 302 | my $indexes = [];
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| 303 | if (defined $indexname && $indexname =~ /\w/) {
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| 304 | push @$indexes, $indexname;
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| 305 | } else {
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| 306 | $indexes = $self->{'collect_cfg'}->{'indexes'};
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| 307 | }
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| 308 |
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| 309 | # create the mapping between the index descriptions
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| 310 | # and their directory names
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| 311 | $self->{'index_mapping'} = $self->create_index_mapping ($indexes);
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| 312 |
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| 313 | # build each of the indexes
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| 314 | foreach $index (@$indexes) {
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| 315 | if ($self->want_built($index)) {
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| 316 | print $outhandle "\n*** building index $index in subdirectory " .
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| 317 | "$self->{'index_mapping'}->{$index}\n" if ($self->{'verbosity'} >= 1);
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| 318 | $self->build_index($index);
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| 319 | } else {
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| 320 | print $outhandle "\n*** ignoring index $index\n" if ($self->{'verbosity'} >= 1);
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| 321 | }
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| 322 | }
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| 323 | }
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| 324 |
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| 325 | # creates directory names for each of the index descriptions
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| 326 | sub create_index_mapping {
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| 327 | my $self = shift (@_);
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| 328 | my ($indexes) = @_;
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| 329 |
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| 330 | my %mapping = ();
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| 331 | $mapping{'indexmaporder'} = [];
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| 332 | $mapping{'subcollectionmaporder'} = [];
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| 333 | $mapping{'languagemaporder'} = [];
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| 334 |
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| 335 | # dirnames is used to check for collisions. Start this off
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| 336 | # with the manditory directory names
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| 337 | my %dirnames = ('text'=>'text',
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| 338 | 'extra'=>'extra');
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| 339 | my %pnames = ('index' => '', 'subcollection' => '', 'languages' => '');
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| 340 |
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| 341 | foreach $index (@$indexes) {
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| 342 | my ($level, $gran, $subcollection, $languages) = split (":", $index);
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| 343 |
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| 344 | # the directory name starts with the first character of the index level
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| 345 | my ($pindex) = $level =~ /^(.)/;
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| 346 |
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| 347 | # next comes a processed version of the index
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| 348 | $pindex .= $self->process_field ($gran);
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| 349 | $pindex = lc ($pindex);
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| 350 |
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| 351 | # next comes a processed version of the subcollection if there is one.
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| 352 | my $psub = $self->process_field ($subcollection);
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| 353 | $psub = lc ($psub);
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| 354 |
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| 355 | # next comes a processed version of the language if there is one.
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| 356 | my $plang = $self->process_field ($languages);
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| 357 | $plang = lc ($plang);
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| 358 |
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| 359 | my $dirname = $pindex . $psub . $plang;
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| 360 |
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| 361 | # check to be sure all index names are unique
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| 362 | while (defined ($dirnames{$dirname})) {
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| 363 | $dirname = $self->make_unique (\%pnames, $index, \$pindex, \$psub, \$plang);
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| 364 | }
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| 365 | $mapping{$index} = $dirname;
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| 366 |
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| 367 | # store the mapping orders as well as the maps
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| 368 | # also put index, subcollection and language fields into the mapping thing -
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| 369 | # (the full index name (eg document:text:subcol:lang) is not used on
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| 370 | # the query page) -these are used for collectionmeta later on
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| 371 | if (!defined $mapping{'indexmap'}{"$level:$gran"}) {
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| 372 | $mapping{'indexmap'}{"$level:$gran"} = $pindex;
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| 373 | push (@{$mapping{'indexmaporder'}}, "$level:$gran");
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| 374 | if (!defined $mapping{"$level:$gran"}) {
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| 375 | $mapping{"$level:$gran"} = $pindex;
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| 376 | }
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| 377 | }
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| 378 | if ($psub =~ /\w/ && !defined ($mapping{'subcollectionmap'}{$subcollection})) {
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| 379 | $mapping{'subcollectionmap'}{$subcollection} = $psub;
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| 380 | push (@{$mapping{'subcollectionmaporder'}}, $subcollection);
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| 381 | $mapping{$subcollection} = $psub;
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| 382 | }
|
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| 383 | if ($plang =~ /\w/ && !defined ($mapping{'languagemap'}{$languages})) {
|
|---|
| 384 | $mapping{'languagemap'}{$languages} = $plang;
|
|---|
| 385 | push (@{$mapping{'languagemaporder'}}, $languages);
|
|---|
| 386 | $mapping{$languages} = $plang;
|
|---|
| 387 | }
|
|---|
| 388 | $dirnames{$dirname} = $index;
|
|---|
| 389 | $pnames{'index'}{$pindex} = "$level:$gran";
|
|---|
| 390 | $pnames{'subcollection'}{$psub} = $subcollection;
|
|---|
| 391 | $pnames{'languages'}{$plang} = $languages;
|
|---|
| 392 | }
|
|---|
| 393 |
|
|---|
| 394 | return \%mapping;
|
|---|
| 395 | }
|
|---|
| 396 |
|
|---|
| 397 | # returns a processed version of a field.
|
|---|
| 398 | # if the field has only one component the processed
|
|---|
| 399 | # version will contain the first character and next consonant
|
|---|
| 400 | # of that componant - otherwise it will contain the first
|
|---|
| 401 | # character of the first two components
|
|---|
| 402 | sub process_field {
|
|---|
| 403 | my $self = shift (@_);
|
|---|
| 404 | my ($field) = @_;
|
|---|
| 405 |
|
|---|
| 406 | return "" unless (defined ($field) && $field =~ /\w/);
|
|---|
| 407 |
|
|---|
| 408 | my @components = split /,/, $field;
|
|---|
| 409 | if (scalar @components >= 2) {
|
|---|
| 410 | splice (@components, 2);
|
|---|
| 411 | map {s/^(.).*$/$1/;} @components;
|
|---|
| 412 | return join("", @components);
|
|---|
| 413 | } else {
|
|---|
| 414 | my ($a, $b) = $field =~ /^(.).*?([bcdfghjklmnpqrstvwxyz])/i;
|
|---|
| 415 | ($a, $b) = $field =~ /^(.)(.)/ unless defined $a && defined $b;
|
|---|
| 416 | return "$a$b";
|
|---|
| 417 | }
|
|---|
| 418 | }
|
|---|
| 419 |
|
|---|
| 420 | sub make_unique {
|
|---|
| 421 | my $self = shift (@_);
|
|---|
| 422 | my ($namehash, $index, $indexref, $subref, $langref) = @_;
|
|---|
| 423 | my ($level, $gran, $subcollection, $languages) = split (":", $index);
|
|---|
| 424 |
|
|---|
| 425 | if ($namehash->{'index'}->{$$indexref} ne "$level:$gran") {
|
|---|
| 426 | $self->get_next_version ($indexref);
|
|---|
| 427 | } elsif ($namehash->{'subcollection'}->{$$subref} ne $subcollection) {
|
|---|
| 428 | $self->get_next_version ($subref);
|
|---|
| 429 | } elsif ($namehash->{'languages'}->{$$langref} ne $languages) {
|
|---|
| 430 | $self->get_next_version ($langref);
|
|---|
| 431 | }
|
|---|
| 432 | return "$$indexref$$subref$$langref";
|
|---|
| 433 | }
|
|---|
| 434 |
|
|---|
| 435 | sub get_next_version {
|
|---|
| 436 | my $self = shift (@_);
|
|---|
| 437 | my ($nameref) = @_;
|
|---|
| 438 |
|
|---|
| 439 | if ($$nameref =~ /(\d\d)$/) {
|
|---|
| 440 | my $num = $1; $num ++;
|
|---|
| 441 | $$nameref =~ s/\d\d$/$num/;
|
|---|
| 442 | } elsif ($$nameref =~ /(\d)$/) {
|
|---|
| 443 | my $num = $1;
|
|---|
| 444 | if ($num == 9) {$$nameref =~ s/\d\d$/10/;}
|
|---|
| 445 | else {$num ++; $$nameref =~ s/\d$/$num/;}
|
|---|
| 446 | } else {
|
|---|
| 447 | $$nameref =~ s/.$/0/;
|
|---|
| 448 | }
|
|---|
| 449 | }
|
|---|
| 450 |
|
|---|
| 451 | sub build_index {
|
|---|
| 452 | my $self = shift (@_);
|
|---|
| 453 | my ($index) = @_;
|
|---|
| 454 | my $outhandle = $self->{'outhandle'};
|
|---|
| 455 |
|
|---|
| 456 | # get the full index directory path and make sure it exists
|
|---|
| 457 | my $indexdir = $self->{'index_mapping'}->{$index};
|
|---|
| 458 | &util::mk_all_dir (&util::filename_cat($self->{'build_dir'}, $indexdir));
|
|---|
| 459 | my $fullindexprefix = &util::filename_cat ($self->{'build_dir'}, $indexdir,
|
|---|
| 460 | $self->{'collection'});
|
|---|
| 461 | my $fulltextprefix = &util::filename_cat ($self->{'build_dir'}, "text",
|
|---|
| 462 | $self->{'collection'});
|
|---|
| 463 |
|
|---|
| 464 | # get any os specific stuff
|
|---|
| 465 | my $exedir = "$ENV{'GSDLHOME'}/bin/$ENV{'GSDLOS'}";
|
|---|
| 466 | my $exe = &util::get_os_exe ();
|
|---|
| 467 | my $mg_passes_exe = &util::filename_cat($exedir, "mg_passes$exe");
|
|---|
| 468 | my $mg_perf_hash_build_exe =
|
|---|
| 469 | &util::filename_cat($exedir, "mg_perf_hash_build$exe");
|
|---|
| 470 | my $mg_weights_build_exe =
|
|---|
| 471 | &util::filename_cat ($exedir, "mg_weights_build$exe");
|
|---|
| 472 | my $mg_invf_dict_exe =
|
|---|
| 473 | &util::filename_cat ($exedir, "mg_invf_dict$exe");
|
|---|
| 474 | my $mg_stem_idx_exe =
|
|---|
| 475 | &util::filename_cat ($exedir, "mg_stem_idx$exe");
|
|---|
| 476 |
|
|---|
| 477 | my $osextra = "";
|
|---|
| 478 | if ($ENV{'GSDLOS'} =~ /^windows$/i) {
|
|---|
| 479 | $fullindexprefix =~ s@/@\\@g;
|
|---|
| 480 | } else {
|
|---|
| 481 | $osextra = " -d /";
|
|---|
| 482 | if ($outhandle ne "STDERR") {
|
|---|
| 483 | # so mg_passes doesn't print to stderr if we redirect output
|
|---|
| 484 | $osextra .= " 2>/dev/null";
|
|---|
| 485 | }
|
|---|
| 486 | }
|
|---|
| 487 |
|
|---|
| 488 | # get the index level from the index description
|
|---|
| 489 | # the index will be level 2 unless we are building a
|
|---|
| 490 | # paragraph level index
|
|---|
| 491 | my $index_level = 2;
|
|---|
| 492 | $index_level = 3 if $index =~ /^paragraph/i;
|
|---|
| 493 |
|
|---|
| 494 | # get the index expression if this index belongs
|
|---|
| 495 | # to a subcollection
|
|---|
| 496 | my $indexexparr = [];
|
|---|
| 497 |
|
|---|
| 498 | # there may be subcollection info, and language info.
|
|---|
| 499 | my ($level, $fields, $subcollection, $language) = split (":", $index);
|
|---|
| 500 | my @subcollections = ();
|
|---|
| 501 | @subcollections = split /,/, $subcollection if (defined $subcollection);
|
|---|
| 502 |
|
|---|
| 503 | foreach $subcollection (@subcollections) {
|
|---|
| 504 | if (defined ($self->{'collect_cfg'}->{'subcollection'}->{$subcollection})) {
|
|---|
| 505 | push (@$indexexparr, $self->{'collect_cfg'}->{'subcollection'}->{$subcollection});
|
|---|
| 506 | }
|
|---|
| 507 | }
|
|---|
| 508 |
|
|---|
| 509 | # add expressions for languages if this index belongs to
|
|---|
| 510 | # a language subcollection - only put languages expressions for the
|
|---|
| 511 | # ones we want in the index
|
|---|
| 512 |
|
|---|
| 513 | my @languages = ();
|
|---|
| 514 | @languages = split /,/, $language if (defined $language);
|
|---|
| 515 | foreach $language (@languages) {
|
|---|
| 516 | my $not=0;
|
|---|
| 517 | if ($language =~ s/^\!//) {
|
|---|
| 518 | $not = 1;
|
|---|
| 519 | }
|
|---|
| 520 | foreach $lang (@{$self->{'collect_cfg'}->{'languages'}}) {
|
|---|
| 521 | if ($lang eq $language) {
|
|---|
| 522 | if($not) {
|
|---|
| 523 | push (@$indexexparr, "!Language/$language/");
|
|---|
| 524 | } else {
|
|---|
| 525 | push (@$indexexparr, "Language/$language/");
|
|---|
| 526 | }
|
|---|
| 527 | last;
|
|---|
| 528 | }
|
|---|
| 529 | }
|
|---|
| 530 | }
|
|---|
| 531 |
|
|---|
| 532 | # Build index dictionary. Uses verbatim stem method
|
|---|
| 533 | print $outhandle "\n creating index dictionary\n" if ($self->{'verbosity'} >= 1);
|
|---|
| 534 | my ($handle);
|
|---|
| 535 | if ($self->{'debug'}) {
|
|---|
| 536 | $handle = STDOUT;
|
|---|
| 537 | } else {
|
|---|
| 538 | if (!-e "$mg_passes_exe" ||
|
|---|
| 539 | !open (PIPEOUT, "| mg_passes$exe -f \"$fullindexprefix\" -b $maxdocsize " .
|
|---|
| 540 | "-$index_level -m 32 -s 0 -G -t 10 -N1 $osextra")) {
|
|---|
| 541 | die "mgbuilder::build_index - couldn't run $mg_passes_exe\n";
|
|---|
| 542 | }
|
|---|
| 543 | $handle = mgbuilder::PIPEOUT;
|
|---|
| 544 | }
|
|---|
| 545 |
|
|---|
| 546 | # set up the document processor
|
|---|
| 547 | $self->{'buildproc'}->set_output_handle ($handle);
|
|---|
| 548 | $self->{'buildproc'}->set_mode ('text');
|
|---|
| 549 | $self->{'buildproc'}->set_index ($index, $indexexparr);
|
|---|
| 550 | $self->{'buildproc'}->set_indexing_text (1);
|
|---|
| 551 | $self->{'buildproc'}->set_store_text(1);
|
|---|
| 552 |
|
|---|
| 553 | $self->{'buildproc'}->reset();
|
|---|
| 554 | &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
|
|---|
| 555 | "", {}, $self->{'buildproc'}, $self->{'maxdocs'});
|
|---|
| 556 | close ($handle) unless $self->{'debug'};
|
|---|
| 557 |
|
|---|
| 558 | $self->print_stats();
|
|---|
| 559 |
|
|---|
| 560 | if (!$self->{'debug'}) {
|
|---|
| 561 | # create the perfect hash function
|
|---|
| 562 | if (!-e "$mg_perf_hash_build_exe") {
|
|---|
| 563 | die "mgbuilder::build_index - couldn't run $mg_perf_hash_build_exe\n";
|
|---|
| 564 | }
|
|---|
| 565 | system ("mg_perf_hash_build$exe -f \"$fullindexprefix\" $osextra");
|
|---|
| 566 |
|
|---|
| 567 | if (!-e "$mg_passes_exe" ||
|
|---|
| 568 | !open ($handle, "| mg_passes$exe -f \"$fullindexprefix\" -b $maxdocsize " .
|
|---|
| 569 | "-$index_level -c 3 -G -t 10 -N2 $osextra")) {
|
|---|
| 570 | die "mgbuilder::build_index - couldn't run $mg_passes_exe\n";
|
|---|
| 571 | }
|
|---|
| 572 | }
|
|---|
| 573 |
|
|---|
| 574 | # invert the text
|
|---|
| 575 | print $outhandle "\n inverting the text\n" if ($self->{'verbosity'} >= 1);
|
|---|
| 576 |
|
|---|
| 577 | $self->{'buildproc'}->reset();
|
|---|
| 578 | &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
|
|---|
| 579 | "", {}, $self->{'buildproc'}, $self->{'maxdocs'});
|
|---|
| 580 |
|
|---|
| 581 | $self->print_stats ();
|
|---|
| 582 |
|
|---|
| 583 | if (!$self->{'debug'}) {
|
|---|
| 584 |
|
|---|
| 585 | close ($handle);
|
|---|
| 586 |
|
|---|
| 587 | # create the weights file
|
|---|
| 588 | print $outhandle "\n create the weights file\n" if ($self->{'verbosity'} >= 1);
|
|---|
| 589 | if (!-e "$mg_weights_build_exe") {
|
|---|
| 590 | die "mgbuilder::build_index - couldn't run $mg_weights_build_exe\n";
|
|---|
| 591 | }
|
|---|
| 592 | system ("mg_weights_build$exe -f \"$fullindexprefix\" -t \"$fulltextprefix\" $osextra");
|
|---|
| 593 |
|
|---|
| 594 | # create 'on-disk' stemmed dictionary
|
|---|
| 595 | print $outhandle "\n creating 'on-disk' stemmed dictionary\n" if ($self->{'verbosity'} >= 1);
|
|---|
| 596 | if (!-e "$mg_invf_dict_exe") {
|
|---|
| 597 | die "mgbuilder::build_index - couldn't run $mg_invf_dict_exe\n";
|
|---|
| 598 | }
|
|---|
| 599 | system ("mg_invf_dict$exe -f \"$fullindexprefix\" $osextra");
|
|---|
| 600 |
|
|---|
| 601 |
|
|---|
| 602 | # creates stem index files for the various stemming methods
|
|---|
| 603 | print $outhandle "\n creating stem indexes\n" if ($self->{'verbosity'} >= 1);
|
|---|
| 604 | if (!-e "$mg_stem_idx_exe") {
|
|---|
| 605 | die "mgbuilder::build_index - couldn't run $mg_stem_idx_exe\n";
|
|---|
| 606 | }
|
|---|
| 607 | system ("mg_stem_idx$exe -b 4096 -s1 -f \"$fullindexprefix\" $osextra");
|
|---|
| 608 | system ("mg_stem_idx$exe -b 4096 -s2 -f \"$fullindexprefix\" $osextra");
|
|---|
| 609 | system ("mg_stem_idx$exe -b 4096 -s3 -f \"$fullindexprefix\" $osextra");
|
|---|
| 610 |
|
|---|
| 611 | # remove unwanted files
|
|---|
| 612 | my $tmpdir = &util::filename_cat ($self->{'build_dir'}, $indexdir);
|
|---|
| 613 | opendir (DIR, $tmpdir) || die
|
|---|
| 614 | "mgbuilder::build_index - couldn't read directory $tmpdir\n";
|
|---|
| 615 | foreach $file (readdir(DIR)) {
|
|---|
| 616 | next if $file =~ /^\./;
|
|---|
| 617 | my ($suffix) = $file =~ /\.([^\.]+)$/;
|
|---|
| 618 | if (defined $suffix && !defined $wanted_index_files{$suffix}) {
|
|---|
| 619 | # delete it!
|
|---|
| 620 | print $outhandle "deleting $file\n" if $self->{'verbosity'} > 2;
|
|---|
| 621 | &util::rm (&util::filename_cat ($tmpdir, $file));
|
|---|
| 622 | }
|
|---|
| 623 | }
|
|---|
| 624 | closedir (DIR);
|
|---|
| 625 | }
|
|---|
| 626 | }
|
|---|
| 627 |
|
|---|
| 628 | sub make_infodatabase {
|
|---|
| 629 | my $self = shift (@_);
|
|---|
| 630 | my $outhandle = $self->{'outhandle'};
|
|---|
| 631 |
|
|---|
| 632 | my $textdir = &util::filename_cat($self->{'build_dir'}, "text");
|
|---|
| 633 | my $assocdir = &util::filename_cat($self->{'build_dir'}, "assoc");
|
|---|
| 634 | &util::mk_all_dir ($textdir);
|
|---|
| 635 | &util::mk_all_dir ($assocdir);
|
|---|
| 636 |
|
|---|
| 637 | # get db name
|
|---|
| 638 | my $dbext = ".bdb";
|
|---|
| 639 | $dbext = ".ldb" if &util::is_little_endian();
|
|---|
| 640 | my $fulldbname = &util::filename_cat ($textdir, "$self->{'collection'}$dbext");
|
|---|
| 641 | $fulldbname =~ s/\//\\/g if ($ENV{'GSDLOS'} =~ /^windows$/i);
|
|---|
| 642 |
|
|---|
| 643 | my $exedir = "$ENV{'GSDLHOME'}/bin/$ENV{'GSDLOS'}";
|
|---|
| 644 | my $exe = &util::get_os_exe ();
|
|---|
| 645 | my $txt2db_exe = &util::filename_cat($exedir, "txt2db$exe");
|
|---|
| 646 |
|
|---|
| 647 | print $outhandle "\n*** creating the info database and processing associated files\n"
|
|---|
| 648 | if ($self->{'verbosity'} >= 1);
|
|---|
| 649 |
|
|---|
| 650 | # init all the classifiers
|
|---|
| 651 | &classify::init_classifiers ($self->{'classifiers'});
|
|---|
| 652 |
|
|---|
| 653 |
|
|---|
| 654 | # set up the document processor
|
|---|
| 655 | my ($handle);
|
|---|
| 656 | if ($self->{'debug'}) {
|
|---|
| 657 | $handle = STDOUT;
|
|---|
| 658 | } else {
|
|---|
| 659 | if (!-e "$txt2db_exe" || !open (PIPEOUT, "| txt2db$exe \"$fulldbname\"")) {
|
|---|
| 660 | die "mgbuilder::make_infodatabase - couldn't run $txt2db_exe\n";
|
|---|
| 661 | }
|
|---|
| 662 | $handle = mgbuilder::PIPEOUT;
|
|---|
| 663 | }
|
|---|
| 664 |
|
|---|
| 665 | $self->{'buildproc'}->set_output_handle ($handle);
|
|---|
| 666 | $self->{'buildproc'}->set_mode ('infodb');
|
|---|
| 667 | $self->{'buildproc'}->set_assocdir ($assocdir);
|
|---|
| 668 | $self->{'buildproc'}->set_dontgdbm ($self->{'dontgdbm'});
|
|---|
| 669 | $self->{'buildproc'}->set_classifiers ($self->{'classifiers'});
|
|---|
| 670 | $self->{'buildproc'}->set_indexing_text (0);
|
|---|
| 671 | $self->{'buildproc'}->set_store_text(1);
|
|---|
| 672 | $self->{'buildproc'}->reset();
|
|---|
| 673 |
|
|---|
| 674 | if (defined $self->{'collect_cfg'}->{'collectionmeta'}) {
|
|---|
| 675 |
|
|---|
| 676 | if (!defined $self->{'index_mapping'}) {
|
|---|
| 677 | $self->{'index_mapping'} =
|
|---|
| 678 | $self->create_index_mapping ($self->{'collect_cfg'}->{'indexes'});
|
|---|
| 679 | }
|
|---|
| 680 |
|
|---|
| 681 | print $handle "[collection]\n";
|
|---|
| 682 |
|
|---|
| 683 | foreach $cmeta (keys (%{$self->{'collect_cfg'}->{'collectionmeta'}})) {
|
|---|
| 684 | my $defaultfound=0;
|
|---|
| 685 | my $first=1;
|
|---|
| 686 | my $metadata_entry = "";
|
|---|
| 687 | my $default="";
|
|---|
| 688 | my $cmetamap = "";
|
|---|
| 689 | if ($cmeta =~ s/^\.//) {
|
|---|
| 690 | if (defined $self->{'index_mapping'}->{$cmeta}) {
|
|---|
| 691 | $cmetamap = $self->{'index_mapping'}->{$cmeta};
|
|---|
| 692 | $cmeta = ".$cmeta";
|
|---|
| 693 | }
|
|---|
| 694 | else {
|
|---|
| 695 | print $outhandle "mgbuilder: warning bad collectionmeta option '$cmeta' - ignored\n";
|
|---|
| 696 | next; #ignore this one
|
|---|
| 697 | }
|
|---|
| 698 | }
|
|---|
| 699 | else {
|
|---|
| 700 | $cmetamap = $cmeta; # just using the same name
|
|---|
| 701 | }
|
|---|
| 702 | #iterate through the languages
|
|---|
| 703 | foreach $lang (keys (%{$self->{'collect_cfg'}->{'collectionmeta'}->{$cmeta}})) {
|
|---|
| 704 | if ($first) {
|
|---|
| 705 | $first=0;
|
|---|
| 706 | #set the default default to the first entry
|
|---|
| 707 | $default=$self->{'collect_cfg'}->{'collectionmeta'}->{$cmeta}->{$lang};
|
|---|
| 708 | }
|
|---|
| 709 | if ($lang =~ /default/) {
|
|---|
| 710 | $defaultfound=1;
|
|---|
| 711 | #the default entry goes first
|
|---|
| 712 | $metadata_entry = "<$cmetamap>" .
|
|---|
| 713 | $self->{'collect_cfg'}->{'collectionmeta'}->{$cmeta}->{'default'} . "\n" . $metadata_entry;
|
|---|
| 714 | }
|
|---|
| 715 | else {
|
|---|
| 716 | my ($l) = $lang =~ /^\[l=(\w*)\]$/;
|
|---|
| 717 | if ($l) {
|
|---|
| 718 | $metadata_entry .= "<$cmetamap:$l>" .
|
|---|
| 719 | $self->{'collect_cfg'}->{'collectionmeta'}->{$cmeta}->{$lang} . "\n";
|
|---|
| 720 | }
|
|---|
| 721 | }
|
|---|
| 722 | }
|
|---|
| 723 | #if we haven't found a default, put one in
|
|---|
| 724 | if (!$defaultfound) {
|
|---|
| 725 | $metadata_entry = "<$cmetamap>$default\n" . $metadata_entry;
|
|---|
| 726 | }
|
|---|
| 727 | #write the entry to the file
|
|---|
| 728 | print $handle $metadata_entry;
|
|---|
| 729 |
|
|---|
| 730 | }
|
|---|
| 731 |
|
|---|
| 732 | print $handle "\n" . ('-' x 70) . "\n";
|
|---|
| 733 |
|
|---|
| 734 | }
|
|---|
| 735 |
|
|---|
| 736 |
|
|---|
| 737 | &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
|
|---|
| 738 | "", {}, $self->{'buildproc'}, $self->{'maxdocs'});
|
|---|
| 739 |
|
|---|
| 740 | # output classification information
|
|---|
| 741 | &classify::output_classify_info ($self->{'classifiers'}, $handle,
|
|---|
| 742 | $self->{'allclassifications'});
|
|---|
| 743 |
|
|---|
| 744 |
|
|---|
| 745 |
|
|---|
| 746 | #output doclist
|
|---|
| 747 | my @doclist = $self->{'buildproc'}->get_doc_list();
|
|---|
| 748 | my $docs = join (";",@doclist);
|
|---|
| 749 | print $handle "[browselist]\n";
|
|---|
| 750 | print $handle "<hastxt>0\n";
|
|---|
| 751 | print $handle "<childtype>VList\n";
|
|---|
| 752 | print $handle "<numleafdocs>" . ($#doclist+1) . "\n";
|
|---|
| 753 | print $handle "<thistype>Invisible\n";
|
|---|
| 754 | print $handle "<contains>$docs";
|
|---|
| 755 | print $handle "\n" . ('-' x 70) . "\n";
|
|---|
| 756 |
|
|---|
| 757 | close ($handle) if !$self->{'debug'};
|
|---|
| 758 | }
|
|---|
| 759 |
|
|---|
| 760 | sub collect_specific {
|
|---|
| 761 | my $self = shift (@_);
|
|---|
| 762 | }
|
|---|
| 763 |
|
|---|
| 764 | sub make_auxiliary_files {
|
|---|
| 765 | my $self = shift (@_);
|
|---|
| 766 | my ($index);
|
|---|
| 767 | my %build_cfg = ();
|
|---|
| 768 | my $outhandle = $self->{'outhandle'};
|
|---|
| 769 |
|
|---|
| 770 | print $outhandle "\n*** creating auxiliary files \n" if ($self->{'verbosity'} >= 1);
|
|---|
| 771 |
|
|---|
| 772 | # get the text directory
|
|---|
| 773 | &util::mk_all_dir ($self->{'build_dir'});
|
|---|
| 774 |
|
|---|
| 775 | # store the build date
|
|---|
| 776 | $build_cfg->{'builddate'} = time;
|
|---|
| 777 |
|
|---|
| 778 | # store the number of documents and number of bytes
|
|---|
| 779 | $build_cfg->{'numdocs'} = $self->{'buildproc'}->get_num_docs();
|
|---|
| 780 | $build_cfg->{'numbytes'} = $self->{'buildproc'}->get_num_bytes();
|
|---|
| 781 |
|
|---|
| 782 | # get additional stats from mg
|
|---|
| 783 | my $exedir = "$ENV{'GSDLHOME'}/bin/$ENV{'GSDLOS'}";
|
|---|
| 784 | my $exe = &util::get_os_exe ();
|
|---|
| 785 | my $mgstat_exe = &util::filename_cat($exedir, "mgstat$exe");
|
|---|
| 786 | my $input_file = &util::filename_cat ("text", $self->{'collection'});
|
|---|
| 787 | if (!-e "$mgstat_exe" || !open (PIPEIN, "mgstat$exe -d \"$self->{'build_dir'}\" -f \"$input_file\" |")) {
|
|---|
| 788 | print $outhandle "Warning: Couldn't open pipe to $mgstat_exe to get additional stats\n";
|
|---|
| 789 | } else {
|
|---|
| 790 | my $line = "";
|
|---|
| 791 | while (defined ($line = <PIPEIN>)) {
|
|---|
| 792 | if ($line =~ /^Words in collection \[dict\]\s+:\s+(\d+)/) {
|
|---|
| 793 | ($build_cfg->{'numwords'}) = $1;
|
|---|
| 794 | } elsif ($line =~ /^Documents\s+:\s+(\d+)/) {
|
|---|
| 795 | ($build_cfg->{'numsections'}) = $1;
|
|---|
| 796 | }
|
|---|
| 797 | }
|
|---|
| 798 | close PIPEIN;
|
|---|
| 799 | }
|
|---|
| 800 |
|
|---|
| 801 | # store the mapping between the index names and the directory names
|
|---|
| 802 | my @indexmap = ();
|
|---|
| 803 | foreach $index (@{$self->{'index_mapping'}->{'indexmaporder'}}) {
|
|---|
| 804 | push (@indexmap, "$index\-\>$self->{'index_mapping'}->{'indexmap'}->{$index}");
|
|---|
| 805 | }
|
|---|
| 806 | $build_cfg->{'indexmap'} = \@indexmap;
|
|---|
| 807 |
|
|---|
| 808 | my @subcollectionmap = ();
|
|---|
| 809 | foreach $subcollection (@{$self->{'index_mapping'}->{'subcollectionmaporder'}}) {
|
|---|
| 810 | push (@subcollectionmap, "$subcollection\-\>" .
|
|---|
| 811 | $self->{'index_mapping'}->{'subcollectionmap'}->{$subcollection});
|
|---|
| 812 | }
|
|---|
| 813 | $build_cfg->{'subcollectionmap'} = \@subcollectionmap if scalar (@subcollectionmap);
|
|---|
| 814 |
|
|---|
| 815 | my @languagemap = ();
|
|---|
| 816 | foreach $language (@{$self->{'index_mapping'}->{'languagemaporder'}}) {
|
|---|
| 817 | push (@languagemap, "$language\-\>" .
|
|---|
| 818 | $self->{'index_mapping'}->{'languagemap'}->{$language});
|
|---|
| 819 | }
|
|---|
| 820 | $build_cfg->{'languagemap'} = \@languagemap if scalar (@languagemap);
|
|---|
| 821 |
|
|---|
| 822 | $build_cfg->{'notbuilt'} = $self->{'notbuilt'} if scalar @{$self->{'notbuilt'}};
|
|---|
| 823 |
|
|---|
| 824 | # write out the build information
|
|---|
| 825 | &cfgread::write_cfg_file("$self->{'build_dir'}/build.cfg", $build_cfg,
|
|---|
| 826 | '^(builddate|numdocs|numbytes|numwords|numsections)$',
|
|---|
| 827 | '^(indexmap|subcollectionmap|languagemap|notbuilt)$');
|
|---|
| 828 |
|
|---|
| 829 | }
|
|---|
| 830 |
|
|---|
| 831 | sub deinit {
|
|---|
| 832 | my $self = shift (@_);
|
|---|
| 833 | }
|
|---|
| 834 |
|
|---|
| 835 | sub print_stats {
|
|---|
| 836 | my $self = shift (@_);
|
|---|
| 837 |
|
|---|
| 838 | my $outhandle = $self->{'outhandle'};
|
|---|
| 839 | my $indexing_text = $self->{'buildproc'}->get_indexing_text();
|
|---|
| 840 | my $index = $self->{'buildproc'}->get_index();
|
|---|
| 841 | my $num_bytes = $self->{'buildproc'}->get_num_bytes();
|
|---|
| 842 | my $num_processed_bytes = $self->{'buildproc'}->get_num_processed_bytes();
|
|---|
| 843 |
|
|---|
| 844 | if ($indexing_text) {
|
|---|
| 845 | print $outhandle "Stats (Creating index $index)\n";
|
|---|
| 846 | } else {
|
|---|
| 847 | print $outhandle "Stats (Compressing text from $index)\n";
|
|---|
| 848 | }
|
|---|
| 849 | print $outhandle "Total bytes in collection: $num_bytes\n";
|
|---|
| 850 | print $outhandle "Total bytes in $index: $num_processed_bytes\n";
|
|---|
| 851 |
|
|---|
| 852 | if ($num_processed_bytes < 50 && ($indexing_text || !$self->{'no_text'})) {
|
|---|
| 853 | print $outhandle "***************\n";
|
|---|
| 854 | if ($indexing_text) {
|
|---|
| 855 | print $outhandle "WARNING: There is very little or no text to process for $index\n";
|
|---|
| 856 | } elsif (!$self->{'no_text'}) {
|
|---|
| 857 | print $outhandle "WARNING: There is very little or no text to compress\n";
|
|---|
| 858 | }
|
|---|
| 859 | print $outhandle " Was this your intention?\n";
|
|---|
| 860 | print $outhandle "***************\n";
|
|---|
| 861 | }
|
|---|
| 862 | }
|
|---|
| 863 |
|
|---|
| 864 | 1;
|
|---|
