[8072] | 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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[12844] | 5 | # from the New Zealand Digital Library Project at the
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[8072] | 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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[12844] | 26 | ###########################################################################
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| 27 | # /*
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| 28 | # * @version 1.0 ?
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| 29 | # * @version 2.0 Incremental building assistance added, including
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| 30 | # * remove_document_from_database which implements the granddad's
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| 31 | # * empty function to call the lucene_passes.pl and full_lucene_passes_exe
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| 32 | # * so there is one place in the code that works out where the
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| 33 | # * perl script is. John Rowe
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| 34 | # *
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| 35 | # * @author John Rowe, DL Consulting Ltd.
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| 36 | # */
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| 37 | ###########################################################################
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| 38 |
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[8072] | 39 | package lucenebuilder;
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| 40 |
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| 41 | # Use same basic XML structure setup by mgppbuilder/mgppbuildproc
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| 42 |
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[12844] | 43 | use mgppbuilder;
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[8072] | 44 |
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[12845] | 45 | # use IncrementalBuildUtils;
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[12844] | 46 |
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[8072] | 47 | sub BEGIN {
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[8716] | 48 | @lucenebuilder::ISA = ('mgppbuilder');
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[8072] | 49 | }
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| 50 |
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[12844] | 51 | # /**
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| 52 | # * @author John Thompson, DL Consulting Ltd.
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| 53 | # */
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[8072] | 54 | sub new {
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| 55 | my $class = shift(@_);
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| 56 | my $self = new mgppbuilder (@_);
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| 57 | $self = bless $self, $class;
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| 58 |
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| 59 | $self->{'buildtype'} = "lucene";
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| 60 |
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[12844] | 61 | # Do we need to put exe on the end?
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| 62 | my $exe = &util::get_os_exe ();
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| 63 | my $scriptdir = "$ENV{'GSDLHOME'}/bin/script";
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| 64 |
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| 65 | # So where is lucene_passes.pl anyway?
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| 66 | my $lucene_passes_script = &util::filename_cat($scriptdir, "lucene_passes.pl");
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| 67 |
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| 68 | # So tack perl on the beginning to ensure execution
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| 69 | $self->{'full_lucene_passes'} = "$lucene_passes_script";
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| 70 | if ($exe eq ".exe")
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| 71 | {
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[13589] | 72 | $self->{'full_lucene_passes_exe'} = "perl$exe \"$lucene_passes_script\"";
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[12844] | 73 | }
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| 74 | else
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| 75 | {
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[13589] | 76 | $self->{'full_lucene_passes_exe'} = "perl -S \"$lucene_passes_script\"";
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[12844] | 77 | }
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| 78 |
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[8072] | 79 | return $self;
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| 80 | }
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[12844] | 81 | # /** new() **/
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[8072] | 82 |
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[12910] | 83 | # lucene has none of these options
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| 84 | sub generate_index_options {
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| 85 | my $self = shift (@_);
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| 86 |
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| 87 | $self->{'casefold'} = 0;
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| 88 | $self->{'stem'} = 0;
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| 89 | $self->{'accentfold'} = 0;
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| 90 | $self->{'stemindexes'} = 0;
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| 91 | }
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| 92 |
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[10468] | 93 | sub default_buildproc {
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| 94 | my $self = shift (@_);
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| 95 |
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| 96 | return "lucenebuildproc";
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| 97 | }
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| 98 |
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[9179] | 99 | # this writes a nice version of the text docs
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[12844] | 100 | sub compress_text
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[13589] | 101 | {
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[8072] | 102 | my $self = shift (@_);
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[10961] | 103 | # we don't do anything if we don't want compressed text
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| 104 | return if $self->{'no_text'};
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| 105 |
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[8072] | 106 | my ($textindex) = @_;
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[9179] | 107 | my $outhandle = $self->{'outhandle'};
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| 108 | print STDERR "Saving the document text\n";
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| 109 | # the text directory
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| 110 | my $text_dir = &util::filename_cat($self->{'build_dir'}, "text");
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[9197] | 111 | my $build_dir = &util::filename_cat($self->{'build_dir'},"");
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[9179] | 112 | &util::mk_all_dir ($text_dir);
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| 113 |
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| 114 | my $osextra = "";
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[12844] | 115 | if ($ENV{'GSDLOS'} =~ /^windows$/i)
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[13589] | 116 | {
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| 117 | $text_dir =~ s@/@\\@g;
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| 118 | }
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[12844] | 119 | else
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[13589] | 120 | {
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| 121 | if ($outhandle ne "STDERR")
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| 122 | {
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| 123 | # so lucene_passes doesn't print to stderr if we redirect output
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| 124 | $osextra .= " 2>/dev/null";
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| 125 | }
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| 126 | }
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[9179] | 127 |
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| 128 | # get any os specific stuff
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| 129 | my $scriptdir = "$ENV{'GSDLHOME'}/bin/script";
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| 130 |
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[12844] | 131 | # Find the perl script to call to run lucene
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| 132 | my $full_lucene_passes = $self->{'full_lucene_passes'};
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| 133 | my $full_lucene_passes_exe = $self->{'full_lucene_passes_exe'};
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| 134 |
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[9179] | 135 | my $lucene_passes_sections = "Doc";
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| 136 |
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| 137 | my ($handle);
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| 138 |
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[12844] | 139 | if ($self->{'debug'})
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[13589] | 140 | {
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| 141 | $handle = STDOUT;
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| 142 | }
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[12844] | 143 | else
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[13589] | 144 | {
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[12844] | 145 | print STDERR "Full Path: $full_lucene_passes\n";
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| 146 | print STDERR "Executable: $full_lucene_passes_exe\n";
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| 147 | print STDERR "Sections: $lucene_passes_sections\n";
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| 148 | print STDERR "Build Dir: $build_dir\n";
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| 149 | print STDERR "Cmd: $full_lucene_passes_exe text $lucene_passes_sections \"$build_dir\" \"dummy\" $osextra\n";
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[13589] | 150 | if (!-e "$full_lucene_passes" ||
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| 151 | !open (PIPEOUT, "| $full_lucene_passes_exe text $lucene_passes_sections \"$build_dir\" \"dummy\" $osextra"))
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| 152 | {
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| 153 | print STDERR "<FatalError name='NoRunLucenePasses'/>\n</Stage>\n" if $self->{'gli'};
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| 154 | die "lucenebuilder::build_index - couldn't run $full_lucene_passes_exe\n";
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| 155 | }
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| 156 | $handle = lucenebuilder::PIPEOUT;
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| 157 | }
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[9179] | 158 | my $levels = $self->{'levels'};
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[9214] | 159 | my $gdbm_level = "document";
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[12844] | 160 | if ($levels->{'section'})
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[13589] | 161 | {
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| 162 | $gdbm_level = "section";
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| 163 | }
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[9214] | 164 |
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[9179] | 165 | undef $levels->{'paragraph'}; # get rid of para if we had it.
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| 166 | # set up the document processr
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| 167 | $self->{'buildproc'}->set_output_handle ($handle);
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| 168 | $self->{'buildproc'}->set_mode ('text');
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| 169 | $self->{'buildproc'}->set_index ($textindex);
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| 170 | $self->{'buildproc'}->set_indexing_text (0);
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| 171 | $self->{'buildproc'}->set_indexfieldmap ($self->{'indexfieldmap'});
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[12844] | 172 | $self->{'buildproc'}->set_levels ($levels);
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| 173 | $self->{'buildproc'}->set_gdbm_level ($gdbm_level);
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[9179] | 174 | $self->{'buildproc'}->reset();
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[12844] | 175 | &plugin::begin($self->{'pluginfo'}, $self->{'source_dir'},
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[13589] | 176 | $self->{'buildproc'}, $self->{'maxdocs'});
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[12844] | 177 | &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
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[13589] | 178 | "", {}, $self->{'buildproc'}, $self->{'maxdocs'}, 0, $self->{'gli'});
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[9179] | 179 | &plugin::end($self->{'pluginfo'});
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| 180 | close ($handle) unless $self->{'debug'};
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| 181 | close PIPEOUT;
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| 182 | $self->print_stats();
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| 183 |
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| 184 | print STDERR "</Stage>\n" if $self->{'gli'};
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[13589] | 185 | }
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[9179] | 186 |
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[8072] | 187 | sub build_indexes {
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| 188 | my $self = shift (@_);
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| 189 | my ($indexname) = @_;
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| 190 | my $outhandle = $self->{'outhandle'};
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| 191 |
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| 192 | my $indexes = [];
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| 193 | if (defined $indexname && $indexname =~ /\w/) {
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[13589] | 194 | push @$indexes, $indexname;
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[8072] | 195 | } else {
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[13589] | 196 | $indexes = $self->{'collect_cfg'}->{'indexes'};
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[8072] | 197 | }
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| 198 |
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[12844] | 199 | # create the mapping between the index descriptions
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[8072] | 200 | # and their directory names (includes subcolls and langs)
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| 201 | $self->{'index_mapping'} = $self->create_index_mapping ($indexes);
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| 202 |
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| 203 | # build each of the indexes
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| 204 | foreach $index (@$indexes) {
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[13589] | 205 | if ($self->want_built($index)) {
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[8072] | 206 |
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[13589] | 207 | my $idx = $self->{'index_mapping'}->{$index};
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| 208 | foreach my $level (keys %{$self->{'levels'}}) {
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| 209 | next if $level =~ /paragraph/; # we don't do para indexing
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| 210 | my ($pindex) = $level =~ /^(.)/;
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| 211 | # should probably check that new name with level
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| 212 | # is unique ... but currently (with doc sec and para)
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| 213 | # each has unique first letter.
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| 214 | $self->{'index_mapping'}->{$index} = $pindex.$idx;
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[8072] | 215 |
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[13589] | 216 | my $llevel = $mgppbuilder::level_map{$level};
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| 217 | print $outhandle "\n*** building index $index at level $llevel in subdirectory " .
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| 218 | "$self->{'index_mapping'}->{$index}\n" if ($self->{'verbosity'} >= 1);
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| 219 | print STDERR "<Stage name='Index' source='$index' level=$llevel>\n" if $self->{'gli'};
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[8072] | 220 |
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[13589] | 221 | $self->build_index($index,$llevel);
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| 222 | }
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| 223 | $self->{'index_mapping'}->{$index} = $idx;
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[8072] | 224 |
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[13589] | 225 | } else {
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| 226 | print $outhandle "\n*** ignoring index $index\n" if ($self->{'verbosity'} >= 1);
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| 227 | }
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[8072] | 228 | }
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| 229 |
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| 230 | #define the final field lists
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| 231 | $self->make_final_field_list();
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| 232 | }
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| 233 |
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[12844] | 234 | # /** Lucene specific document removal function. This works by calling lucene_passes.pl with
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| 235 | # * -remove and the document id on the command line.
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| 236 | # *
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| 237 | # * @param oid is the document identifier to be removed.
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| 238 | # *
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| 239 | # * @author John Rowe, DL Consulting Ltd.
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| 240 | # */
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| 241 | sub remove_document_from_database
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[13589] | 242 | {
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[12844] | 243 | my ($self, $oid) = @_;
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| 244 | # Find the perl script to call to run lucene
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| 245 | my $full_lucene_passes_exe = $self->{'full_lucene_passes_exe'};
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| 246 | # Call lucene_passes.pl with -remove and the document ID on the command line
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| 247 | `$full_lucene_passes_exe -remove "$oid"`;
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[13589] | 248 | }
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[12844] | 249 | # /** remove_document_from_database **/
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| 250 |
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[8072] | 251 | sub build_index {
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| 252 | my $self = shift (@_);
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| 253 | my ($index,$llevel) = @_;
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| 254 | my $outhandle = $self->{'outhandle'};
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| 255 | my $build_dir = $self->{'build_dir'};
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| 256 |
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| 257 | # get the full index directory path and make sure it exists
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| 258 | my $indexdir = $self->{'index_mapping'}->{$index};
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| 259 | &util::mk_all_dir (&util::filename_cat($build_dir, $indexdir));
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| 260 |
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| 261 | # get any os specific stuff
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| 262 | my $exedir = "$ENV{'GSDLHOME'}/bin/$ENV{'GSDLOS'}";
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| 263 | my $scriptdir = "$ENV{'GSDLHOME'}/bin/script";
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| 264 |
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[12844] | 265 | # Find the perl script to call to run lucene
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| 266 | my $full_lucene_passes = $self->{'full_lucene_passes'};
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| 267 | my $full_lucene_passes_exe = $self->{'full_lucene_passes_exe'};
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[8072] | 268 |
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| 269 | # define the section names for lucenepasses
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| 270 | # define the section names and possibly the doc name for lucenepasses
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| 271 | my $lucene_passes_sections = $llevel;
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| 272 |
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[10158] | 273 | my $opt_create_index = ($self->{'keepold'}) ? "" : "-create";
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| 274 |
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[8072] | 275 | my $osextra = "";
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| 276 | if ($ENV{'GSDLOS'} =~ /^windows$/i) {
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[13589] | 277 | $build_dir =~ s@/@\\@g;
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[8072] | 278 | } else {
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[13589] | 279 | if ($outhandle ne "STDERR") {
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| 280 | # so lucene_passes doesn't print to stderr if we redirect output
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| 281 | $osextra .= " 2>/dev/null";
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| 282 | }
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[8072] | 283 | }
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[12844] | 284 |
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[8072] | 285 | # get the index expression if this index belongs
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| 286 | # to a subcollection
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| 287 | my $indexexparr = [];
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[9669] | 288 | my $langarr = [];
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[8072] | 289 |
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[12844] | 290 | # there may be subcollection info, and language info.
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[8072] | 291 | my ($fields, $subcollection, $language) = split (":", $index);
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| 292 | my @subcollections = ();
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| 293 | @subcollections = split /,/, $subcollection if (defined $subcollection);
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| 294 |
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| 295 | foreach $subcollection (@subcollections) {
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[13589] | 296 | if (defined ($self->{'collect_cfg'}->{'subcollection'}->{$subcollection})) {
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| 297 | push (@$indexexparr, $self->{'collect_cfg'}->{'subcollection'}->{$subcollection});
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| 298 | }
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[8072] | 299 | }
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[12844] | 300 |
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[8072] | 301 | # add expressions for languages if this index belongs to
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[12844] | 302 | # a language subcollection - only put languages expressions for the
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[8072] | 303 | # ones we want in the index
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| 304 | my @languages = ();
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[9548] | 305 | my $language_metadata = "Language";
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| 306 | if (defined ($self->{'collect_cfg'}->{'language_metadata'})) {
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[13589] | 307 | $language_metadata = $self->{'collect_cfg'}->{'language_metadata'};
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[9548] | 308 | }
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[8072] | 309 | @languages = split /,/, $language if (defined $language);
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[9548] | 310 | foreach my $language (@languages) {
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[13589] | 311 | my $not=0;
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| 312 | if ($language =~ s/^\!//) {
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| 313 | $not = 1;
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| 314 | }
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| 315 | if($not) {
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| 316 | push (@$langarr, "!$language");
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| 317 | } else {
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| 318 | push (@$langarr, "$language");
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| 319 | }
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[8072] | 320 | }
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| 321 |
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| 322 | # Build index dictionary. Uses verbatim stem method
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| 323 | print $outhandle "\n creating index dictionary (lucene_passes -I1)\n" if ($self->{'verbosity'} >= 1);
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| 324 | print STDERR "<Phase name='CreatingIndexDic'/>\n" if $self->{'gli'};
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| 325 | my ($handle);
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| 326 |
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| 327 | if ($self->{'debug'}) {
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[13589] | 328 | $handle = STDOUT;
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[8072] | 329 | } else {
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[13589] | 330 | print STDERR "Cmd: $full_lucene_passes_exe $opt_create_index index $lucene_passes_sections \"$build_dir\" \"$indexdir\" $osextra\n";
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| 331 | if (!-e "$full_lucene_passes" ||
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| 332 | !open (PIPEOUT, "| $full_lucene_passes_exe $opt_create_index index $lucene_passes_sections \"$build_dir\" \"$indexdir\" $osextra")) {
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| 333 | print STDERR "<FatalError name='NoRunLucenePasses'/>\n</Stage>\n" if $self->{'gli'};
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| 334 | die "lucenebuilder::build_index - couldn't run $lucene_passes_exe\n";
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| 335 | }
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| 336 | $handle = lucenebuilder::PIPEOUT;
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[8072] | 337 | }
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[12844] | 338 |
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[8072] | 339 | my $store_levels = $self->{'levels'};
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[9214] | 340 | my $gdbm_level = "document";
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| 341 | if ($store_levels->{'section'}) {
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[13589] | 342 | $gdbm_level = "section";
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[9214] | 343 | }
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[12844] | 344 |
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[8072] | 345 | my $dom_level = "";
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| 346 | foreach my $key (keys %$store_levels) {
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[13589] | 347 | if ($mgppbuilder::level_map{$key} eq $llevel) {
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| 348 | $dom_level = $key;
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| 349 | }
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[8072] | 350 | }
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| 351 | if ($dom_level eq "") {
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[13589] | 352 | print STDERR "Warning: unrecognized tag level $llevel\n";
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| 353 | $dom_level = "document";
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[8072] | 354 | }
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| 355 |
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| 356 | my $local_levels = { $dom_level => 1 }; # work on one level at a time
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| 357 |
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| 358 | # set up the document processr
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| 359 | $self->{'buildproc'}->set_output_handle ($handle);
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| 360 | $self->{'buildproc'}->set_mode ('text');
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| 361 | $self->{'buildproc'}->set_index ($index, $indexexparr);
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[9669] | 362 | $self->{'buildproc'}->set_index_languages ($language_metadata, $langarr) if (defined $language);
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[8072] | 363 | $self->{'buildproc'}->set_indexing_text (1);
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| 364 | $self->{'buildproc'}->set_indexfieldmap ($self->{'indexfieldmap'});
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[12844] | 365 | $self->{'buildproc'}->set_levels ($local_levels);
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[9214] | 366 | $self->{'buildproc'}->set_gdbm_level($gdbm_level);
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[8072] | 367 | $self->{'buildproc'}->reset();
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[12844] | 368 | &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
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[13589] | 369 | "", {}, $self->{'buildproc'}, $self->{'maxdocs'}, 0, $self->{'gli'});
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[8072] | 370 | close ($handle) unless $self->{'debug'};
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| 371 |
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| 372 | $self->print_stats();
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| 373 |
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[12844] | 374 | $self->{'buildproc'}->set_levels ($store_levels);
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[8072] | 375 | print STDERR "</Stage>\n" if $self->{'gli'};
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[12844] | 376 | }
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[8072] | 377 |
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[12844] | 378 | # /** A modified version of the basebuilder.pm's function that generates the
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| 379 | # * information database (GDBM) from the GA documents. We need to change this
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| 380 | # * so that if we've been asked to do an incremental build we only add
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| 381 | # * metadata to autohierarchy classifiers via the IncrementalBuildUtils
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| 382 | # * module. All other classifiers and metadata will be ignored.
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| 383 | # */
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| 384 | sub make_infodatabase
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[13589] | 385 | {
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[12844] | 386 | my $self = shift (@_);
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| 387 | my $outhandle = $self->{'outhandle'};
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| 388 |
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| 389 | my $dbext = ".bdb";
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| 390 | $dbext = ".ldb" if &util::is_little_endian();
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| 391 | my $infodb_file = &util::filename_cat($self->{'build_dir'}, "text", $self->{'collection'} . $dbext);
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| 392 |
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| 393 | # If we aren't doing an incremental addition, then we just call the super-
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| 394 | # classes version
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| 395 | # Note: Incremental addition can only occur if a text/<collection>.ldb
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| 396 | # already exists. If it doesn't, let the super classes function be
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| 397 | # called once to generate it.
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[12974] | 398 | if (!$self->{'incremental_dlc'} || !(-e $infodb_file))
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[13589] | 399 | {
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[12844] | 400 | # basebuilder::make_infodatabase(@_);
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| 401 | # Note: this doesn't work as the direct reference means all the $self
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| 402 | # data is lost.
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| 403 | $self->basebuilder::make_infodatabase(@_);
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| 404 | return;
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[13589] | 405 | }
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[12844] | 406 |
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| 407 | # Carry on with an incremental addition
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| 408 | print $outhandle "\n*** performing an incremental addition to the info database\n" if ($self->{'verbosity'} >= 1);
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| 409 | print STDERR "<Stage name='CreateInfoData'>\n" if $self->{'gli'};
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| 410 |
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| 411 | # 1. Init all the classifiers
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| 412 | &classify::init_classifiers ($self->{'classifiers'});
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| 413 | # 2. Init the buildproc settings.
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| 414 | # Note: we still need this to process any associated files - but we
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| 415 | # don't expect to pipe anything to txt2db so we can do away with the
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| 416 | # complex output handle.
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| 417 | my $assocdir = &util::filename_cat($self->{'build_dir'}, "assoc");
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| 418 | &util::mk_all_dir ($assocdir);
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| 419 | $self->{'buildproc'}->set_mode ('incinfodb'); # Very Important
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| 420 | $self->{'buildproc'}->set_assocdir ($assocdir);
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| 421 | # 3. Read in all the metadata from the files in the archives directory using
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| 422 | # the GAPlug and using ourselves as the document processor!
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| 423 | &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'}, "", {}, $self->{'buildproc'}, $self->{'maxdocs'},0, $self->{'gli'});
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| 424 |
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| 425 | print STDERR "</Stage>\n" if $self->{'gli'};
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| 426 | }
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| 427 |
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[8072] | 428 | 1;
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| 429 |
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| 430 |
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