source: trunk/gsdl/perllib/mgppbuilder.pm@ 10664

Last change on this file since 10664 was 10477, checked in by kjdon, 19 years ago

added a mod to output_collection_meta

  • Property svn:keywords set to Author Date Id Revision
File size: 30.0 KB
Line 
1###########################################################################
2#
3# mgppbuilder.pm -- MGBuilder object
4# A component of the Greenstone digital library software
5# from the New Zealand Digital Library Project at the
6# University of Waikato, New Zealand.
7#
8# Copyright (C) 1999 New Zealand Digital Library Project
9#
10# This program is free software; you can redistribute it and/or modify
11# it under the terms of the GNU General Public License as published by
12# the Free Software Foundation; either version 2 of the License, or
13# (at your option) any later version.
14#
15# This program is distributed in the hope that it will be useful,
16# but WITHOUT ANY WARRANTY; without even the implied warranty of
17# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18# GNU General Public License for more details.
19#
20# You should have received a copy of the GNU General Public License
21# along with this program; if not, write to the Free Software
22# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23#
24###########################################################################
25
26package mgppbuilder;
27
28use basebuilder;
29use classify;
30use cfgread;
31use colcfg;
32use plugin;
33use util;
34use FileHandle;
35
36sub BEGIN {
37 @mgppbuilder::ISA = ('basebuilder');
38}
39
40
41
42our %level_map = ('document'=>'Doc',
43 'section'=>'Sec',
44 'paragraph'=>'Para',
45 'Doc'=>'_textdocument_',
46 'Sec'=>'_textsection_',
47 'Para'=>'_textparagraph_');
48
49#$doc_level = "Doc";
50#$sec_level = "Sec";
51#$para_level = "Para";
52
53our %wanted_index_files = ('td'=>1,
54 't'=>1,
55 'tl'=>1,
56 'ti'=>1,
57 'idb'=>1,
58 'ib1'=>1,
59 'ib2'=>1,
60 'ib3'=>1,
61 'i'=>1,
62 'il'=>1,
63 'w'=>1,
64 'wa'=>1);
65
66# change this so a user can add their own ones in via a file or cfg
67#add AND, OR, NOT NEAR to this list - these cannot be used as field names
68#also add the level names (Doc, Sec, Para)
69our %static_indexfield_map = ('Title'=>'TI',
70 'TI'=>1,
71 'Subject'=>'SU',
72 'SU'=>1,
73 'Creator'=>'CR',
74 'CR'=>1,
75 'Organization'=>'ORG',
76 'ORG'=>1,
77 'Source'=>'SO',
78 'SO'=>1,
79 'Howto'=>'HT',
80 'HT'=>1,
81 'ItemTitle'=>'IT',
82 'IT'=>1,
83 'ProgNumber'=>'PN',
84 'PN'=>1,
85 'People'=>'PE',
86 'PE'=>1,
87 'Coverage'=>'CO',
88 'CO'=>1,
89 'allfields'=>'ZZ',
90 'ZZ'=>1,
91 'text'=>'TX',
92 'TX'=>1,
93 'AND'=>1,
94 'OR'=>1,
95 'NOT'=>1,
96 'NEAR'=>1,
97 'Doc'=>1,
98 'Sec'=>1,
99 'Para'=>1);
100
101my $maxdocsize = $basebuilder::maxdocsize;
102
103sub new {
104 my $class = shift(@_);
105
106 my ($collection, $source_dir, $build_dir, $verbosity,
107 $maxdocs, $debug, $keepold, $remove_empty_classifications,
108 $outhandle, $no_text, $failhandle, $gli) = @_;
109
110 my $self = new basebuilder (@_);
111 $self = bless $self, $class;
112
113 $self->{'indexfieldmap'} = \%static_indexfield_map;
114
115 # get the levels (Section, Paragraph) for indexing and compression
116 $self->{'levels'} = {};
117 $self->{'levelorder'} = ();
118 if (defined $self->{'collect_cfg'}->{'levels'}) {
119 foreach my $level ( @{$self->{'collect_cfg'}->{'levels'}} ){
120 $level =~ tr/A-Z/a-z/;
121 $self->{'levels'}->{$level} = 1;
122 push (@{$self->{'levelorder'}}, $level);
123 }
124 } else { # default to document
125 $self->{'levels'}->{'document'} = 1;
126 push (@{$self->{'levelorder'}}, 'document');
127 }
128
129 $self->{'doc_level'} = "document";
130 if (! $self->{'levels'}->{'document'}) {
131 if ($self->{'levels'}->{'section'}) {
132 $self->{'doc_level'} = "section";
133 } else {
134 die "you must have either document or section level specified!!\n";
135 }
136 }
137
138 $self->{'buildtype'} = "mgpp";
139
140 return $self;
141}
142
143sub generate_index_list {
144 my $self = shift (@_);
145
146 # sort out the indexes
147 #indexes are specified with spaces, but we put them into one index
148 my $indexes = $self->{'collect_cfg'}->{'indexes'};
149 $self->{'collect_cfg'}->{'indexes'} = [];
150 push (@{$self->{'collect_cfg'}->{'indexes'}}, join(',', @$indexes));
151}
152
153sub default_buildproc {
154 my $self = shift (@_);
155
156 return "mgppbuildproc";
157}
158
159sub compress_text {
160
161 my $self = shift (@_);
162 my ($textindex) = @_;
163
164 my $exedir = "$ENV{'GSDLHOME'}/bin/$ENV{'GSDLOS'}";
165 my $exe = &util::get_os_exe ();
166 my $mgpp_passes_exe = &util::filename_cat($exedir, "mgpp_passes$exe");
167 my $mgpp_compression_dict_exe = &util::filename_cat($exedir, "mgpp_compression_dict$exe");
168 my $outhandle = $self->{'outhandle'};
169
170 &util::mk_all_dir (&util::filename_cat($self->{'build_dir'}, "text"));
171
172 my $basefilename = "text/$self->{'collection'}";
173 my $fulltextprefix = &util::filename_cat ($self->{'build_dir'}, $basefilename);
174
175 my $osextra = "";
176 if ($ENV{'GSDLOS'} =~ /^windows$/i) {
177 $fulltextprefix =~ s@/@\\@g;
178 }
179 else {
180 $osextra = " -d /";
181 }
182
183
184 # define the section names and possibly the doc name for mgpasses
185 # the compressor doesn't need to know about paragraphs - never want to
186 # retrieve them
187 my $mgpp_passes_sections = "";
188 my ($doc_level) = $self->{'doc_level'};
189 $mgpp_passes_sections .= "-J " . $level_map{$doc_level} . " ";
190 foreach my $level (keys %{$self->{'levels'}}) {
191 if ($level ne $doc_level && $level ne "paragraph") {
192 $mgpp_passes_sections .= "-K " . $level_map{$level} . " ";
193 }
194 }
195 $mgpp_passes_sections .= "-K SENT ";
196 print $outhandle "\n*** creating the compressed text\n" if ($self->{'verbosity'} >= 1);
197 print STDERR "<Stage name='CompressText'>\n" if $self->{'gli'};
198
199 # collect the statistics for the text
200 # -b $maxdocsize sets the maximum document size to be 12 meg
201 print $outhandle "\n collecting text statistics (mgpp_passes -T1)\n" if ($self->{'verbosity'} >= 1);
202 print STDERR "<Phase name='CollectTextStats'/>\n" if $self->{'gli'};
203
204 my ($handle);
205 if ($self->{'debug'}) {
206 $handle = STDOUT;
207 } else {
208 #print $outhandle "trying to run (compress 1) mgpp_passes$exe $mgpp_passes_sections -f \"$fulltextprefix\" -T1 $osextra\n";
209 if (!-e "$mgpp_passes_exe" ||
210 !open (PIPEOUT, "| mgpp_passes$exe $mgpp_passes_sections -f \"$fulltextprefix\" -T1 $osextra")) {
211 print STDERR "<FatalError name='NoRunMGPasses'>\n</Stage>\n" if $self->{'gli'};
212 die "mgppbuilder::compress_text - couldn't run $mgpp_passes_exe\n";
213 }
214 $handle = mgppbuilder::PIPEOUT;
215 }
216
217 # gdbm_level
218 my $gdbm_level = "document";
219 if ($self->{'levels'}->{'section'}) {
220 $gdbm_level = "section";
221 }
222
223 $self->{'buildproc'}->set_output_handle ($handle);
224 $self->{'buildproc'}->set_mode ('text');
225 $self->{'buildproc'}->set_index ($textindex);
226 $self->{'buildproc'}->set_indexing_text (0);
227 if ($self->{'no_text'}) {
228 $self->{'buildproc'}->set_store_text(0);
229 } else {
230 $self->{'buildproc'}->set_store_text(1);
231 }
232 $self->{'buildproc'}->set_indexfieldmap ($self->{'indexfieldmap'});
233 $self->{'buildproc'}->set_levels ($self->{'levels'});
234 $self->{'buildproc'}->set_gdbm_level ($gdbm_level);
235 $self->{'buildproc'}->reset();
236 &plugin::begin($self->{'pluginfo'}, $self->{'source_dir'},
237 $self->{'buildproc'}, $self->{'maxdocs'});
238 &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
239 "", {}, $self->{'buildproc'}, $self->{'maxdocs'}, 0, $self->{'gli'});
240 &plugin::end($self->{'pluginfo'});
241 close (PIPEOUT);
242
243 close ($handle) unless $self->{'debug'};
244
245 $self->print_stats();
246
247 # create the compression dictionary
248 # the compression dictionary is built by assuming the stats are from a seed
249 # dictionary (-S), if a novel word is encountered it is spelled out (-H),
250 # and the resulting dictionary must be less than 5 meg with the most
251 # frequent words being put into the dictionary first (-2 -k 5120)
252 # note: these options are left over from mg version
253 if (!$self->{'debug'}) {
254 print $outhandle "\n creating the compression dictionary\n" if ($self->{'verbosity'} >= 1);
255 print STDERR "<Phase name='CreatingCompress'/>\n" if $self->{'gli'};
256 if (!-e "$mgpp_compression_dict_exe") {
257 print STDERR "<FatalError name='NoRunMGCompress'/>\n</Stage>\n" if $self->{'gli'};
258 die "mgppbuilder::compress_text - couldn't run $mgpp_compression_dict_exe\n";
259 }
260 system ("mgpp_compression_dict$exe -f \"$fulltextprefix\" -S -H -2 -k 5120 $osextra");
261
262 if (!$self->{'debug'}) {
263 #print $outhandle "trying to run (compress 2) mgpp_passes$exe $mgpp_passes_sections -f \"$fulltextprefix\" -T2 $osextra\n";
264 if (!-e "$mgpp_passes_exe" ||
265 !open ($handle, "| mgpp_passes$exe $mgpp_passes_sections -f \"$fulltextprefix\" -T2 $osextra")) {
266 print STDERR "<FatalError name='NoRunMGPasses'/>\n</Stage>\n" if $self->{'gli'};
267 die "mgppbuilder::compress_text - couldn't run $mgpp_passes_exe\n";
268 }
269 }
270 }
271 else {
272 print STDERR "<Phase name='SkipCreatingComp'/>\n" if $self->{'gli'};
273 }
274
275 $self->{'buildproc'}->reset();
276 # compress the text
277 print $outhandle "\n compressing the text (mgpp_passes -T2)\n" if ($self->{'verbosity'} >= 1);
278 print STDERR "<Phase name='CompressingText'/>\n" if $self->{'gli'};
279
280 &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
281 "", {}, $self->{'buildproc'}, $self->{'maxdocs'}, 0, $self->{'gli'});
282 close ($handle) unless $self->{'debug'};
283
284 $self->print_stats();
285 print STDERR "</Stage>\n" if $self->{'gli'};
286}
287
288
289sub build_indexes_extra {
290 my $self = shift(@_);
291 #define the final field lists
292 $self->make_final_field_list();
293}
294
295# creates directory names for each of the index descriptions
296sub create_index_mapping {
297 my $self = shift (@_);
298 my ($indexes) = @_;
299
300 my %mapping = ();
301
302 $mapping{'indexmaporder'} = [];
303 $mapping{'subcollectionmaporder'} = [];
304 $mapping{'languagemaporder'} = [];
305
306 # dirnames is used to check for collisions. Start this off
307 # with the manditory directory names
308 my %dirnames = ('text'=>'text',
309 'extra'=>'extra');
310 my %pnames = ('index' => {}, 'subcollection' => {}, 'languages' => {});
311
312 foreach my $index (@$indexes) {
313 my ($fields, $subcollection, $languages) = split (":", $index);
314 # the directory name starts with a processed version of index fields
315 #my ($pindex) = $self->process_field($fields);
316 #$pindex = lc ($pindex);
317 # now we only ever have one index, and its called 'idx'
318 my $pindex = 'idx';
319
320 # next comes a processed version of the subcollection if there is one.
321 my $psub = $self->process_field ($subcollection);
322 $psub = lc ($psub);
323
324 # next comes a processed version of the language if there is one.
325 my $plang = $self->process_field ($languages);
326 $plang = lc ($plang);
327
328 my $dirname = $pindex . $psub . $plang;
329
330 # check to be sure all index names are unique
331 while (defined ($dirnames{$dirname})) {
332 $dirname = $self->make_unique (\%pnames, $index, \$pindex, \$psub, \$plang);
333 }
334
335 $mapping{$index} = $dirname;
336
337 # store the mapping orders as well as the maps
338 # also put index, subcollection and language fields into the mapping thing -
339 # (the full index name (eg text:subcol:lang) is not used on
340 # the query page) -these are used for collectionmeta later on
341 if (!defined $mapping{'indexmap'}{"$fields"}) {
342 $mapping{'indexmap'}{"$fields"} = $pindex;
343 push (@{$mapping{'indexmaporder'}}, "$fields");
344 if (!defined $mapping{"$fields"}) {
345 $mapping{"$fields"} = $pindex;
346 }
347 }
348 if ($psub =~ /\w/ && !defined ($mapping{'subcollectionmap'}{$subcollection})) {
349 $mapping{'subcollectionmap'}{$subcollection} = $psub;
350 push (@{$mapping{'subcollectionmaporder'}}, $subcollection);
351 $mapping{$subcollection} = $psub;
352 }
353 if ($plang =~ /\w/ && !defined ($mapping{'languagemap'}{$languages})) {
354 $mapping{'languagemap'}{$languages} = $plang;
355 push (@{$mapping{'languagemaporder'}}, $languages);
356 $mapping{$languages} = $plang;
357 }
358 $dirnames{$dirname} = $index;
359 $pnames{'index'}->{$pindex} = "$fields";
360 $pnames{'subcollection'}->{$psub} = $subcollection;
361 $pnames{'languages'}->{$plang} = $languages;
362 }
363
364 return \%mapping;
365}
366
367sub make_unique {
368 my $self = shift (@_);
369 my ($namehash, $index, $indexref, $subref, $langref) = @_;
370 my ($fields, $subcollection, $languages) = split (":", $index);
371
372 if ($namehash->{'index'}->{$$indexref} ne "$fields") {
373 $self->get_next_version ($indexref);
374 } elsif ($namehash->{'subcollection'}->{$$subref} ne $subcollection) {
375 $self->get_next_version ($subref);
376 } elsif ($namehash->{'languages'}->{$$langref} ne $languages) {
377 $self->get_next_version ($langref);
378 }
379 return "$$indexref$$subref$$langref";
380}
381
382
383sub build_index {
384 my $self = shift (@_);
385 my ($index) = @_;
386 my $outhandle = $self->{'outhandle'};
387
388 # get the full index directory path and make sure it exists
389 my $indexdir = $self->{'index_mapping'}->{$index};
390 &util::mk_all_dir (&util::filename_cat($self->{'build_dir'}, $indexdir));
391 my $fullindexprefix = &util::filename_cat ($self->{'build_dir'},
392 $indexdir,
393 $self->{'collection'});
394 my $fulltextprefix = &util::filename_cat ($self->{'build_dir'}, "text",
395 $self->{'collection'});
396
397 # get any os specific stuff
398 my $exedir = "$ENV{'GSDLHOME'}/bin/$ENV{'GSDLOS'}";
399
400 my $exe = &util::get_os_exe ();
401 my $mgpp_passes_exe = &util::filename_cat($exedir, "mgpp_passes$exe");
402
403 # define the section names for mgpasses
404 # define the section names and possibly the doc name for mgpasses
405 my $mgpp_passes_sections = "";
406 my ($doc_level) = $self->{'doc_level'};
407 $mgpp_passes_sections .= "-J " . $level_map{$doc_level} ." ";
408
409 foreach my $level (keys %{$self->{'levels'}}) {
410 if ($level ne $doc_level) {
411 $mgpp_passes_sections .= "-K " . $level_map{$level}. " ";
412 }
413 }
414
415 my $mgpp_perf_hash_build_exe =
416 &util::filename_cat($exedir, "mgpp_perf_hash_build$exe");
417 my $mgpp_weights_build_exe =
418 &util::filename_cat ($exedir, "mgpp_weights_build$exe");
419 my $mgpp_invf_dict_exe =
420 &util::filename_cat ($exedir, "mgpp_invf_dict$exe");
421 my $mgpp_stem_idx_exe =
422 &util::filename_cat ($exedir, "mgpp_stem_idx$exe");
423
424 my $osextra = "";
425 if ($ENV{'GSDLOS'} =~ /^windows$/i) {
426 $fullindexprefix =~ s@/@\\@g;
427 } else {
428 $osextra = " -d /";
429 if ($outhandle ne "STDERR") {
430 # so mgpp_passes doesn't print to stderr if we redirect output
431 $osextra .= " 2>/dev/null";
432 }
433 }
434
435 # get the index expression if this index belongs
436 # to a subcollection
437 my $indexexparr = [];
438 my $langarr = [];
439 # there may be subcollection info, and language info.
440 my ($fields, $subcollection, $language) = split (":", $index);
441 my @subcollections = ();
442 @subcollections = split /,/, $subcollection if (defined $subcollection);
443
444 foreach $subcollection (@subcollections) {
445 if (defined ($self->{'collect_cfg'}->{'subcollection'}->{$subcollection})) {
446 push (@$indexexparr, $self->{'collect_cfg'}->{'subcollection'}->{$subcollection});
447 }
448 }
449
450 # add expressions for languages if this index belongs to
451 # a language subcollection - only put languages expressions for the
452 # ones we want in the index
453
454 my @languages = ();
455 my $language_metadata = "Language";
456 if (defined ($self->{'collect_cfg'}->{'language_metadata'})) {
457 $language_metadata = $self->{'collect_cfg'}->{'language_metadata'};
458 }
459 @languages = split /,/, $language if (defined $language);
460 foreach my $language (@languages) {
461 my $not=0;
462 if ($language =~ s/^\!//) {
463 $not = 1;
464 }
465 if($not) {
466 push (@$langarr, "!$language");
467 } else {
468 push (@$langarr, "$language");
469 }
470 }
471
472 # Build index dictionary. Uses verbatim stem method
473 print $outhandle "\n creating index dictionary (mgpp_passes -I1)\n" if ($self->{'verbosity'} >= 1);
474 print STDERR "<Phase name='CreatingIndexDic'/>\n" if $self->{'gli'};
475 my ($handle);
476 if ($self->{'debug'}) {
477 $handle = STDOUT;
478 } else {
479 if (!-e "$mgpp_passes_exe" ||
480 !open (PIPEOUT, "| mgpp_passes$exe $mgpp_passes_sections -f \"$fullindexprefix\" -I1 $osextra")) {
481 print STDERR "<FatalError name='NoRunMGPasses'/>\n</Stage>\n" if $self->{'gli'};
482 die "mgppbuilder::build_index - couldn't run $mgpp_passes_exe\n";
483 }
484 $handle = mgppbuilder::PIPEOUT;
485 }
486
487 # gdbm_level
488 my $gdbm_level = "document";
489 if ($self->{'levels'}->{'section'}) {
490 $gdbm_level = "section";
491 }
492
493 # set up the document processr
494 $self->{'buildproc'}->set_output_handle ($handle);
495 $self->{'buildproc'}->set_mode ('text');
496 $self->{'buildproc'}->set_index ($index, $indexexparr);
497 $self->{'buildproc'}->set_index_languages ($language_metadata, $langarr) if (defined $language);
498 $self->{'buildproc'}->set_indexing_text (1);
499 $self->{'buildproc'}->set_store_text(1);
500 $self->{'buildproc'}->set_indexfieldmap ($self->{'indexfieldmap'});
501 $self->{'buildproc'}->set_levels ($self->{'levels'});
502 $self->{'buildproc'}->set_gdbm_level ($gdbm_level);
503
504 $self->{'buildproc'}->reset();
505 &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
506 "", {}, $self->{'buildproc'}, $self->{'maxdocs'}, 0, $self->{'gli'});
507 close ($handle) unless $self->{'debug'};
508
509 $self->print_stats();
510
511 # now we check to see if the required files have been produced - if not we quit building this index so the whole process doesn't crap out.
512 # we check on the .id file - index dictionary
513 my $dict_file = "$fullindexprefix.id";
514 if (!-e $dict_file) {
515 print $outhandle "mgppbuilder::build_index - Couldn't create index $index\n";
516 print STDERR "<Warning name='NoIndex'/>\n</Stage>\n" if $self->{'gli'};
517 $self->{'notbuilt'}->{$index}=1;
518 return;
519 }
520
521 if (!$self->{'debug'}) {
522 # create the perfect hash function
523 if (!-e "$mgpp_perf_hash_build_exe") {
524 print STDERR "<FatalError name='NoRunMGHash'/>\n</Stage>\n" if $self->{'gli'};
525 die "mgppbuilder::build_index - couldn't run $mgpp_perf_hash_build_exe\n";
526 }
527 system ("mgpp_perf_hash_build$exe -f \"$fullindexprefix\" $osextra");
528
529 if (!-e "$mgpp_passes_exe" ||
530 !open ($handle, "| mgpp_passes$exe $mgpp_passes_sections -f \"$fullindexprefix\" -I2 $osextra")) {
531 print STDERR "<FatalError name='NoRunMGPasses'/>\n</Stage>\n" if $self->{'gli'};
532 die "mgppbuilder::build_index - couldn't run $mgpp_passes_exe\n";
533 }
534 }
535
536 # invert the text
537 print $outhandle "\n inverting the text (mgpp_passes -I2)\n" if ($self->{'verbosity'} >= 1);
538 print STDERR "<Phase name='InvertingText'/>\n" if $self->{'gli'};
539 $self->{'buildproc'}->reset();
540 &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'},
541 "", {}, $self->{'buildproc'}, $self->{'maxdocs'}, 0, $self->{'gli'});
542
543 $self->print_stats ();
544
545 if (!$self->{'debug'}) {
546
547 close ($handle);
548
549 # create the weights file
550 print $outhandle "\n create the weights file\n" if ($self->{'verbosity'} >= 1);
551 print STDERR "<Phase name='CreateTheWeights'/>\n" if $self->{'gli'};
552 if (!-e "$mgpp_weights_build_exe") {
553 print STDERR "<FatalError name='NoRunMGWeights'/>\n</Stage>\n" if $self->{'gli'};
554 die "mgppbuilder::build_index - couldn't run $mgpp_weights_build_exe\n";
555 }
556 system ("mgpp_weights_build$exe -f \"$fullindexprefix\" $osextra");
557
558 # create 'on-disk' stemmed dictionary
559 print $outhandle "\n creating 'on-disk' stemmed dictionary\n" if ($self->{'verbosity'} >= 1);
560 if (!-e "$mgpp_invf_dict_exe") {
561 print STDERR "<FatalError name='NoRunMGInvf'/>\n</Stage>\n" if $self->{'gli'};
562 die "mgppbuilder::build_index - couldn't run $mgpp_invf_dict_exe\n";
563 }
564 system ("mgpp_invf_dict$exe -f \"$fullindexprefix\" $osextra" );
565
566
567 # creates stem index files for the various stemming methods
568 print $outhandle "\n creating stem indexes\n" if ($self->{'verbosity'} >= 1);
569 print STDERR "<Phase name='CreatingStemIndx'/>\n" if $self->{'gli'};
570 if (!-e "$mgpp_stem_idx_exe") {
571 print STDERR "<FatalError name='NoRunMGStem'/>\n</Stage>\n" if $self->{'gli'};
572 die "mgppbuilder::build_index - couldn't run $mgpp_stem_idx_exe\n";
573 }
574 system ("mgpp_stem_idx$exe -b 4096 -s1 -f \"$fullindexprefix\" $osextra");
575 system ("mgpp_stem_idx$exe -b 4096 -s2 -f \"$fullindexprefix\" $osextra");
576 system ("mgpp_stem_idx$exe -b 4096 -s3 -f \"$fullindexprefix\" $osextra");
577
578 # remove unwanted files
579 my $tmpdir = &util::filename_cat ($self->{'build_dir'}, $indexdir);
580 opendir (DIR, $tmpdir) || die
581 "mgppbuilder::build_index - couldn't read directory $tmpdir\n";
582 foreach my $file (readdir(DIR)) {
583 next if $file =~ /^\./;
584 my ($suffix) = $file =~ /\.([^\.]+)$/;
585 if (defined $suffix && !defined $wanted_index_files{$suffix}) {
586 # delete it!
587 print $outhandle "deleting $file\n" if $self->{'verbosity'} > 2;
588 #&util::rm (&util::filename_cat ($tmpdir, $file));
589 }
590 }
591 closedir (DIR);
592 }
593 print STDERR "</Stage>\n" if $self->{'gli'};
594}
595
596
597sub output_collection_meta {
598 my $self = shift(@_);
599 my ($handle) = @_;
600
601 # define the indexed field mapping if not already done so (ie if infodb called separately from build_index)
602 if (!defined $self->{'build_cfg'}) {
603 $self->read_final_field_list();
604 }
605
606 # do the collection info
607 print $handle "[collection]\n";
608
609 # first do the collection meta stuff - everything without a dot
610 my $collmetadefined = 0;
611 my $metadata_entry;
612 if (defined $self->{'collect_cfg'}->{'collectionmeta'}) {
613 $collmetadefined = 1;
614 foreach my $cmeta (keys (%{$self->{'collect_cfg'}->{'collectionmeta'}})) {
615 next if ($cmeta =~ /^\./); # for now, ignore ones with dots
616 $metadata_entry = $self->create_language_db_map($cmeta, $cmeta);
617 #write the entry to the file
618 print $handle $metadata_entry;
619
620 } # foreach collmeta key
621 }
622 #add the index field macros to [collection]
623 # eg <TI>Title
624 # <SU>Subject
625 # these now come from collection meta. if that is not defined, usses the metadata name
626 my $field_entry="";
627 my $collmeta = "";
628 foreach my $longfield (@{$self->{'build_cfg'}->{'indexfields'}}){
629 my $shortfield = $self->{'buildproc'}->{'indexfieldmap'}->{$longfield};
630 next if $shortfield eq 1;
631
632 # we need to check if some coll meta has been defined
633 $collmeta = ".$longfield";
634 if ($collmetadefined && defined $self->{'collect_cfg'}->{'collectionmeta'}->{$collmeta}) {
635 $metadata_entry = $self->create_language_db_map($collmeta, $shortfield);
636 $field_entry .= $metadata_entry;
637 } else { #use the metadata names, or the text macros for allfields and textonly
638 if ($longfield eq "allfields") {
639 $field_entry .= "<$shortfield>_query:textallfields_\n";
640 } elsif ($longfield eq "text") {
641 $field_entry .= "<$shortfield>_query:texttextonly_\n";
642 } else {
643 $field_entry .= "<$shortfield>$longfield\n";
644 }
645 }
646 }
647 print $handle $field_entry;
648
649 # now add the level names
650 my $level_entry = "";
651 foreach my $level (@{$self->{'collect_cfg'}->{'levels'}}) {
652 $collmeta = ".$level"; # based on the original specification
653 $level =~ tr/A-Z/a-z/; # make it lower case
654 my $levelid = $level_map{$level}; # find the actual value we used in the index
655 if ($collmetadefined && defined $self->{'collect_cfg'}->{'collectionmeta'}->{$collmeta}) {
656 $metadata_entry = $self->create_language_db_map($collmeta, $levelid);
657 $level_entry .= $metadata_entry;
658 } else {
659 # use the default macro
660 $level_entry .= "<$levelid>" . $level_map{$levelid} . "\n";
661 }
662 }
663 print $handle $level_entry;
664
665 # now add subcoll meta
666 my $subcoll_entry = "";
667 my $shortname = "";
668 my $one_entry = "";
669 foreach my $subcoll (@{$self->{'index_mapping'}->{'subcollectionmaporder'}}) {
670 if (defined $self->{'collect_cfg'}->{'collectionmeta'}->{".$subcoll"}) {
671 $shortname = $self->{'index_mapping'}->{$subcoll};
672 $one_entry = $self->create_language_db_map(".$subcoll", $shortname);
673 $subcoll_entry .= $one_entry;
674 } else {
675 $subcoll_entry .= "<$shortname>$subcoll\n";
676 }
677 }
678 print $handle $subcoll_entry;
679
680 # now add language meta
681 my $lang_entry = "";
682 foreach my $lang (@{$self->{'index_mapping'}->{'languagemaporder'}}) {
683 if (defined $self->{'collect_cfg'}->{'collectionmeta'}->{".$lang"}) {
684 $shortname = $self->{'index_mapping'}->{$lang};
685 $one_entry = $self->create_language_db_map(".$lang", $shortname);
686 $lang_entry .= $one_entry;
687 } else {
688 $lang_entry .= "<$shortname>$lang\n";
689 }
690 }
691 print $handle $lang_entry;
692 # end the collection entry
693 print $handle "\n" . ('-' x 70) . "\n";
694
695
696}
697sub create_language_db_map {
698 my $self = shift (@_);
699 my ($metaname, $mapname) = @_;
700 my $outhandle = $self->{'outhandle'};
701 my $defaultfound=0;
702 my $first=1;
703 my $metadata_entry = "";
704 my $default="";
705 #iterate through the languages
706 foreach my $lang (keys (%{$self->{'collect_cfg'}->{'collectionmeta'}->{$metaname}})) {
707 if ($first) {
708 $first=0;
709 #set the default default to the first entry
710 $default=$self->{'collect_cfg'}->{'collectionmeta'}->{$metaname}->{$lang};
711 }
712 if ($lang =~ /default/) {
713 $defaultfound=1;
714 #the default entry goes first
715 $metadata_entry = "<$mapname>" .
716 $self->{'collect_cfg'}->{'collectionmeta'}->{$metaname}->{'default'} . "\n" . $metadata_entry;
717 }
718 else {
719 my ($l) = $lang =~ /^\[l=(\w*)\]$/;
720 if ($l) {
721 $metadata_entry .= "<$mapname:$l>" .
722 $self->{'collect_cfg'}->{'collectionmeta'}->{$metaname}->{$lang} . "\n";
723
724 # Use the English value as the default if no default is specified
725 if ($l =~ /en/i) {
726 $default=$self->{'collect_cfg'}->{'collectionmeta'}->{$metaname}->{$lang};
727 }
728 }
729 }
730 } #foreach lang
731 #if we haven't found a default, put one in
732 if (!$defaultfound) {
733 $metadata_entry = "<$mapname>$default\n" . $metadata_entry;
734 }
735 return $metadata_entry;
736
737}
738
739# at the end of building, we have an indexfieldmap with all the mappings,
740# plus some extras, and indexmap with any indexes in it that weren't
741# specified in the index definition. we want to make an ordered list of
742# fields that are indexed, and a list of mappings that are used. this will
743# be used for the build.cfg file, and for collection meta definition we
744# store these in a build.cfg bit
745sub make_final_field_list {
746 my $self = shift (@_);
747
748 $self->{'build_cfg'} = {};
749
750 # store the indexfieldmap information
751 my @indexfieldmap = ();
752 my @indexfields = ();
753 my $specifiedfields = {};
754 my @specifiedfieldorder = ();
755
756 # go through the index definition and add each thing to a map, so we
757 # can easily check if it is already specified - when doing the
758 # metadata, we print out all the individual fields, but some may
759 # already be specified in the index definition, so we dont want to add
760 # those again.
761
762 my $field;
763 foreach $field (@{$self->{'collect_cfg'}->{'indexes'}}) {
764 # remove subcoll stuff
765 my $parts = $field;
766 $parts =~ s/:.*$//;
767 my @fs = split(',', $parts);
768 foreach my $f(@fs) {
769 if (!defined $specifiedfields->{$f}) {
770 $specifiedfields->{$f}=1;
771 push (@specifiedfieldorder, "$f");
772 }
773 }
774 }
775
776 #add all fields bit
777 foreach $field (@specifiedfieldorder) {
778 if ($field eq "metadata") {
779 foreach my $newfield (keys %{$self->{'buildproc'}->{'indexfields'}}) {
780 if (!defined $specifiedfields->{$newfield}) {
781 push (@indexfieldmap, "$newfield\-\>$self->{'buildproc'}->{'indexfieldmap'}->{$newfield}");
782 push (@indexfields, "$newfield");
783 }
784 }
785
786 } elsif ($field eq 'text') {
787 push (@indexfieldmap, "text\-\>TX");
788 push (@indexfields, "text");
789 } elsif ($field eq 'allfields') {
790 push (@indexfieldmap, "allfields\-\>ZZ");
791 push (@indexfields, "allfields");
792 } else {
793 push (@indexfieldmap, "$field\-\>$self->{'buildproc'}->{'indexfieldmap'}->{$field}");
794 push (@indexfields, "$field");
795
796 }
797 }
798
799 $self->{'build_cfg'}->{'indexfieldmap'} = \@indexfieldmap;
800 $self->{'build_cfg'}->{'indexfields'} = \@indexfields;
801}
802
803
804# recreate the field list from the build.cfg file, look first in building,
805# then in index to find it. if there is no build.cfg, we can't do the field
806# list (there is unlikely to be any index anyway.)
807sub read_final_field_list {
808 my $self = shift (@_);
809 $self->{'build_cfg'} = {};
810 my @indexfieldmap = ();
811 my @indexfields = ();
812
813 if (scalar(keys %{$self->{'buildproc'}->{'indexfieldmap'}}) == 0) {
814 # set the default mapping
815 $self->{'buildproc'}->set_indexfieldmap ($self->{'indexfieldmap'});
816 }
817 # we read the stuff in from the build.cfg file - if its there
818 my $buildconfigfile = &util::filename_cat($self->{'build_dir'}, "build.cfg");
819
820 if (!-e $buildconfigfile) {
821 # try the index dir - but do we know where it is?? try here
822 $buildconfigfile = &util::filename_cat($ENV{'GSDLCOLLECTDIR'}, "index", "build.cfg");
823 if (!-e $buildconfigfile) {
824 #we cant find a config file - just ignore the field list
825 return;
826 }
827 }
828
829 my $buildcfg = &colcfg::read_build_cfg( $buildconfigfile);
830 my $field;
831 if (defined $buildcfg->{'indexfields'}) {
832 foreach $field (@{$buildcfg->{'indexfields'}}) {
833 push (@indexfields, "$field");
834 }
835 }
836
837 if (defined $buildcfg->{'indexfieldmap'}) {
838 foreach $field (@{$buildcfg->{'indexfieldmap'}}) {
839 push (@indexfieldmap, "$field");
840 my ($f, $v) = $field =~ /^(.*)\-\>(.*)$/;
841 $self->{'buildproc'}->{'indexfieldmap'}->{$f} = $v;
842 }
843 }
844
845 $self->{'build_cfg'}->{'indexfieldmap'} = \@indexfieldmap;
846 $self->{'build_cfg'}->{'indexfields'} = \@indexfields;
847}
848
849
850sub write_cfg_file {
851 my $self = shift(@_);
852 my ($build_cfg) = @_;
853
854 # write out the build information
855 &cfgread::write_cfg_file("$self->{'build_dir'}/build.cfg", $build_cfg,
856 '^(builddate|buildtype|numdocs|numsections|numbytes|textlevel|indexstem|maxnumeric)$',
857 '^(indexmap|subcollectionmap|languagemap|indexfieldmap|notbuilt|indexfields|indexlevels|levelmap)$');
858
859}
860
861sub build_cfg_extra {
862 my $self = shift (@_);
863 my ($build_cfg) = @_;
864
865 $build_cfg->{'numsections'} = $self->{'buildproc'}->get_num_sections();
866
867 # store the level info
868 my @indexlevels = ();
869 my @levelmap = ();
870 foreach my $l (@{$self->{'levelorder'}}) {
871 push (@indexlevels, $level_map{$l});
872 push (@levelmap, "$l\-\>$level_map{$l}");
873 }
874 $build_cfg->{'indexlevels'} = \@indexlevels;
875 $build_cfg->{'levelmap'} = \@levelmap;
876
877 if ($self->{'levels'}->{'section'}) {
878 $build_cfg->{'textlevel'} = $level_map{'section'};
879 } else {
880 $build_cfg->{'textlevel'} = $level_map{'document'};
881 }
882
883}
884
8851;
886
887
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