| 1 | ###########################################################################
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| 2 | #
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| 3 | # lucenebuilder.pm -- perl wrapper for building index with Lucene
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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 lucenebuilder;
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| 27 |
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| 28 | # Use same basic XML structure setup by mgppbuilder/mgppbuildproc
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| 29 |
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| 30 | use mgppbuilder;
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| 31 |
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| 32 | sub BEGIN {
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| 33 | @lucenebuilder::ISA = ('mgppbuilder');
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| 34 | }
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| 35 |
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| 36 |
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| 37 | sub new {
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| 38 | my $class = shift(@_);
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| 39 | my ($collection, $source_dir, $build_dir, $verbosity,
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| 40 | $maxdocs, $debug, $keepold, $allclassifications,
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| 41 | $outhandle, $no_text, $gli) = @_;
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| 42 |
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| 43 | my $self = new mgppbuilder (@_);
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| 44 | $self = bless $self, $class;
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| 45 |
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| 46 | $self->{'buildtype'} = "lucene";
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| 47 |
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| 48 | return $self;
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| 49 | }
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| 50 |
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| 51 | sub default_buildproc {
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| 52 | my $self = shift (@_);
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| 53 |
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| 54 | return "lucenebuildproc";
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| 55 | }
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| 56 |
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| 57 | # this writes a nice version of the text docs
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| 58 | sub compress_text {
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| 59 |
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| 60 | my $self = shift (@_);
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| 61 |
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| 62 | # we don't do anything if we don't want compressed text
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| 63 | return if $self->{'no_text'};
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| 64 |
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| 65 | my ($textindex) = @_;
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| 66 | my $outhandle = $self->{'outhandle'};
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| 67 | print STDERR "Saving the document text\n";
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| 68 | # the text directory
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| 69 | my $text_dir = &util::filename_cat($self->{'build_dir'}, "text");
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| 70 | my $build_dir = &util::filename_cat($self->{'build_dir'},"");
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| 71 | &util::mk_all_dir ($text_dir);
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| 72 |
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| 73 | my $osextra = "";
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| 74 | if ($ENV{'GSDLOS'} =~ /^windows$/i) {
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| 75 | $text_dir =~ s@/@\\@g;
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| 76 | } else {
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| 77 | if ($outhandle ne "STDERR") {
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| 78 | # so lucene_passes doesn't print to stderr if we redirect output
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| 79 | $osextra .= " 2>/dev/null";
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| 80 | }
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| 81 | }
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| 82 |
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| 83 |
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| 84 | # get any os specific stuff
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| 85 | my $scriptdir = "$ENV{'GSDLHOME'}/bin/script";
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| 86 |
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| 87 | my $lucene_passes_exe = &util::filename_cat($scriptdir, "lucene_passes.pl");
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| 88 | my $full_lucene_passes_exe = "\"$lucene_passes_exe\"";
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| 89 | if ($ENV{'GSDLOS'} =~ /^windows$/i) {
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| 90 | $full_lucene_passes_exe = "perl.exe -S \"$lucene_passes_exe\"";
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| 91 | }
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| 92 | my $lucene_passes_sections = "Doc";
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| 93 |
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| 94 | my ($handle);
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| 95 |
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| 96 | if ($self->{'debug'}) {
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| 97 | $handle = STDOUT;
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| 98 | } else {
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| 99 | if (!-e "$lucene_passes_exe" ||
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| 100 | !open (PIPEOUT, "| $full_lucene_passes_exe text $lucene_passes_sections \"$build_dir\" \"dummy\" $osextra")) {
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| 101 | print STDERR "<FatalError name='NoRunLucenePasses'/>\n</Stage>\n" if $self->{'gli'};
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| 102 | die "lucenebuilder::build_index - couldn't run $lucene_passes_exe\n";
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| 103 | }
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| 104 | $handle = lucenebuilder::PIPEOUT;
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| 105 | }
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| 106 | my $levels = $self->{'levels'};
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| 107 | my $gdbm_level = "document";
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| 108 | if ($levels->{'section'}) {
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| 109 | $gdbm_level = "section";
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| 110 | }
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| 111 |
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| 112 | undef $levels->{'paragraph'}; # get rid of para if we had it.
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| 113 | # set up the document processr
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| 114 | $self->{'buildproc'}->set_output_handle ($handle);
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| 115 | $self->{'buildproc'}->set_mode ('text');
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| 116 | $self->{'buildproc'}->set_index ($textindex);
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| 117 | $self->{'buildproc'}->set_indexing_text (0);
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| 118 | $self->{'buildproc'}->set_indexfieldmap ($self->{'indexfieldmap'});
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| 119 | $self->{'buildproc'}->set_levels ($levels);
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| 120 | $self->{'buildproc'}->set_gdbm_level ($gdbm_level);
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| 121 | $self->{'buildproc'}->reset();
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| 122 | &plugin::begin($self->{'pluginfo'}, $self->{'source_dir'},
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| 123 | $self->{'buildproc'}, $self->{'maxdocs'});
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| 124 | &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
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| 125 | "", {}, $self->{'buildproc'}, $self->{'maxdocs'}, 0, $self->{'gli'});
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| 126 | &plugin::end($self->{'pluginfo'});
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| 127 | close ($handle) unless $self->{'debug'};
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| 128 | close PIPEOUT;
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| 129 | $self->print_stats();
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| 130 |
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| 131 | print STDERR "</Stage>\n" if $self->{'gli'};
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| 132 |
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| 133 | }
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| 134 |
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| 135 | sub build_indexes {
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| 136 | my $self = shift (@_);
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| 137 | my ($indexname) = @_;
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| 138 | my $outhandle = $self->{'outhandle'};
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| 139 |
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| 140 | my $indexes = [];
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| 141 | if (defined $indexname && $indexname =~ /\w/) {
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| 142 | push @$indexes, $indexname;
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| 143 | } else {
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| 144 | $indexes = $self->{'collect_cfg'}->{'indexes'};
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| 145 | }
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| 146 |
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| 147 | # create the mapping between the index descriptions
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| 148 | # and their directory names (includes subcolls and langs)
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| 149 | $self->{'index_mapping'} = $self->create_index_mapping ($indexes);
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| 150 |
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| 151 | # build each of the indexes
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| 152 | foreach $index (@$indexes) {
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| 153 | if ($self->want_built($index)) {
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| 154 |
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| 155 | my $idx = $self->{'index_mapping'}->{$index};
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| 156 | foreach my $level (keys %{$self->{'levels'}}) {
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| 157 | next if $level =~ /paragraph/; # we don't do para indexing
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| 158 | my ($pindex) = $level =~ /^(.)/;
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| 159 | # should probably check that new name with level
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| 160 | # is unique ... but currently (with doc sec and para)
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| 161 | # each has unique first letter.
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| 162 | $self->{'index_mapping'}->{$index} = $pindex.$idx;
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| 163 |
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| 164 | my $llevel = $mgppbuilder::level_map{$level};
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| 165 | print $outhandle "\n*** building index $index at level $llevel in subdirectory " .
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| 166 | "$self->{'index_mapping'}->{$index}\n" if ($self->{'verbosity'} >= 1);
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| 167 | print STDERR "<Stage name='Index' source='$index' level=$llevel>\n" if $self->{'gli'};
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| 168 |
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| 169 | $self->build_index($index,$llevel);
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| 170 | }
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| 171 | $self->{'index_mapping'}->{$index} = $idx;
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| 172 |
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| 173 | } else {
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| 174 | print $outhandle "\n*** ignoring index $index\n" if ($self->{'verbosity'} >= 1);
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| 175 | }
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| 176 | }
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| 177 |
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| 178 | #define the final field lists
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| 179 | $self->make_final_field_list();
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| 180 | }
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| 181 |
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| 182 | sub build_index {
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| 183 | my $self = shift (@_);
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| 184 | my ($index,$llevel) = @_;
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| 185 | my $outhandle = $self->{'outhandle'};
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| 186 | my $build_dir = $self->{'build_dir'};
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| 187 |
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| 188 | # get the full index directory path and make sure it exists
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| 189 | my $indexdir = $self->{'index_mapping'}->{$index};
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| 190 | &util::mk_all_dir (&util::filename_cat($build_dir, $indexdir));
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| 191 |
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| 192 | # get any os specific stuff
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| 193 | my $exedir = "$ENV{'GSDLHOME'}/bin/$ENV{'GSDLOS'}";
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| 194 | my $scriptdir = "$ENV{'GSDLHOME'}/bin/script";
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| 195 |
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| 196 | my $exe = &util::get_os_exe ();
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| 197 | my $lucene_passes_exe = &util::filename_cat($scriptdir, "lucene_passes.pl");
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| 198 | my $full_lucene_passes_exe = "\"$lucene_passes_exe\"";
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| 199 | if ($ENV{'GSDLOS'} =~ /^windows$/i) {
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| 200 | $full_lucene_passes_exe = "perl.exe -S \"$lucene_passes_exe\"";
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| 201 | }
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| 202 |
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| 203 | # define the section names for lucenepasses
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| 204 | # define the section names and possibly the doc name for lucenepasses
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| 205 | my $lucene_passes_sections = $llevel;
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| 206 |
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| 207 | my $opt_create_index = ($self->{'keepold'}) ? "" : "-create";
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| 208 |
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| 209 | my $osextra = "";
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| 210 | if ($ENV{'GSDLOS'} =~ /^windows$/i) {
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| 211 | $build_dir =~ s@/@\\@g;
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| 212 | } else {
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| 213 | if ($outhandle ne "STDERR") {
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| 214 | # so lucene_passes doesn't print to stderr if we redirect output
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| 215 | $osextra .= " 2>/dev/null";
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| 216 | }
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| 217 | }
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| 218 |
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| 219 | # get the index expression if this index belongs
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| 220 | # to a subcollection
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| 221 | my $indexexparr = [];
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| 222 | my $langarr = [];
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| 223 |
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| 224 | # there may be subcollection info, and language info.
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| 225 | my ($fields, $subcollection, $language) = split (":", $index);
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| 226 | my @subcollections = ();
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| 227 | @subcollections = split /,/, $subcollection if (defined $subcollection);
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| 228 |
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| 229 | foreach $subcollection (@subcollections) {
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| 230 | if (defined ($self->{'collect_cfg'}->{'subcollection'}->{$subcollection})) {
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| 231 | push (@$indexexparr, $self->{'collect_cfg'}->{'subcollection'}->{$subcollection});
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| 232 | }
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| 233 | }
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| 234 |
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| 235 | # add expressions for languages if this index belongs to
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| 236 | # a language subcollection - only put languages expressions for the
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| 237 | # ones we want in the index
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| 238 |
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| 239 | my @languages = ();
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| 240 | my $language_metadata = "Language";
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| 241 | if (defined ($self->{'collect_cfg'}->{'language_metadata'})) {
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| 242 | $language_metadata = $self->{'collect_cfg'}->{'language_metadata'};
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| 243 | }
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| 244 | @languages = split /,/, $language if (defined $language);
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| 245 | foreach my $language (@languages) {
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| 246 | my $not=0;
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| 247 | if ($language =~ s/^\!//) {
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| 248 | $not = 1;
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| 249 | }
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| 250 | if($not) {
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| 251 | push (@$langarr, "!$language");
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| 252 | } else {
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| 253 | push (@$langarr, "$language");
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| 254 | }
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| 255 | }
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| 256 |
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| 257 | # Build index dictionary. Uses verbatim stem method
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| 258 | print $outhandle "\n creating index dictionary (lucene_passes -I1)\n" if ($self->{'verbosity'} >= 1);
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| 259 | print STDERR "<Phase name='CreatingIndexDic'/>\n" if $self->{'gli'};
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| 260 | my ($handle);
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| 261 |
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| 262 | if ($self->{'debug'}) {
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| 263 | $handle = STDOUT;
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| 264 | } else {
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| 265 | if (!-e "$lucene_passes_exe" ||
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| 266 | !open (PIPEOUT, "| $full_lucene_passes_exe $opt_create_index index $lucene_passes_sections \"$build_dir\" \"$indexdir\" $osextra")) {
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| 267 | print STDERR "<FatalError name='NoRunLucenePasses'/>\n</Stage>\n" if $self->{'gli'};
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| 268 | die "lucenebuilder::build_index - couldn't run $lucene_passes_exe\n";
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| 269 | }
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| 270 | $handle = lucenebuilder::PIPEOUT;
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| 271 | }
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| 272 |
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| 273 | my $store_levels = $self->{'levels'};
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| 274 | my $gdbm_level = "document";
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| 275 | if ($store_levels->{'section'}) {
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| 276 | $gdbm_level = "section";
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| 277 | }
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| 278 |
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| 279 | my $dom_level = "";
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| 280 | foreach my $key (keys %$store_levels) {
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| 281 | if ($mgppbuilder::level_map{$key} eq $llevel) {
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| 282 | $dom_level = $key;
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| 283 | }
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| 284 | }
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| 285 | if ($dom_level eq "") {
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| 286 | print STDERR "Warning: unrecognized tag level $llevel\n";
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| 287 | $dom_level = "document";
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| 288 | }
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| 289 |
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| 290 | my $local_levels = { $dom_level => 1 }; # work on one level at a time
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| 291 |
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| 292 | # set up the document processr
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| 293 | $self->{'buildproc'}->set_output_handle ($handle);
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| 294 | $self->{'buildproc'}->set_mode ('text');
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| 295 | $self->{'buildproc'}->set_index ($index, $indexexparr);
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| 296 | $self->{'buildproc'}->set_index_languages ($language_metadata, $langarr) if (defined $language);
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| 297 | $self->{'buildproc'}->set_indexing_text (1);
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| 298 | $self->{'buildproc'}->set_indexfieldmap ($self->{'indexfieldmap'});
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| 299 | $self->{'buildproc'}->set_levels ($local_levels);
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| 300 | $self->{'buildproc'}->set_gdbm_level($gdbm_level);
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| 301 | $self->{'buildproc'}->reset();
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| 302 | &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
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| 303 | "", {}, $self->{'buildproc'}, $self->{'maxdocs'}, 0, $self->{'gli'});
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| 304 | close ($handle) unless $self->{'debug'};
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| 305 |
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| 306 | $self->print_stats();
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| 307 |
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| 308 | $self->{'buildproc'}->set_levels ($store_levels);
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| 309 | print STDERR "</Stage>\n" if $self->{'gli'};
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| 310 | }
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| 311 |
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| 312 | 1;
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| 313 |
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| 314 |
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