1 |
package WebPAC; |
2 |
|
3 |
use warnings; |
4 |
use strict; |
5 |
|
6 |
use Carp; |
7 |
use Text::Iconv; |
8 |
use Config::IniFiles; |
9 |
use XML::Simple; |
10 |
use Template; |
11 |
use Log::Log4perl qw(get_logger :levels); |
12 |
|
13 |
use Data::Dumper; |
14 |
|
15 |
=head1 NAME |
16 |
|
17 |
WebPAC - base class for WebPAC |
18 |
|
19 |
=head1 DESCRIPTION |
20 |
|
21 |
This module implements methods used by WebPAC. |
22 |
|
23 |
=head1 METHODS |
24 |
|
25 |
=head2 new |
26 |
|
27 |
This will create new instance of WebPAC using configuration specified by C<config_file>. |
28 |
|
29 |
my $webpac = new WebPAC( |
30 |
config_file => 'name.conf', |
31 |
[code_page => 'ISO-8859-2',] |
32 |
); |
33 |
|
34 |
Default C<code_page> is C<ISO-8859-2>. |
35 |
|
36 |
It will also read configuration files |
37 |
C<global.conf> (used by indexer and Web font-end) |
38 |
and configuration file specified by C<config_file> |
39 |
which describes databases to be indexed. |
40 |
|
41 |
=cut |
42 |
|
43 |
# mapping between data type and tag which specify |
44 |
# format in XML file |
45 |
my %type2tag = ( |
46 |
'isis' => 'isis', |
47 |
# 'excel' => 'column', |
48 |
# 'marc' => 'marc', |
49 |
# 'feed' => 'feed' |
50 |
); |
51 |
|
52 |
sub new { |
53 |
my $class = shift; |
54 |
my $self = {@_}; |
55 |
bless($self, $class); |
56 |
|
57 |
my $log_file = $self->{'log'} || "log.conf"; |
58 |
Log::Log4perl->init($log_file); |
59 |
|
60 |
my $log = $self->_get_logger(); |
61 |
|
62 |
# fill in default values |
63 |
# output codepage |
64 |
$self->{'code_page'} = 'ISO-8859-2' if (! $self->{'code_page'}); |
65 |
|
66 |
# |
67 |
# read global.conf |
68 |
# |
69 |
$log->debug("read 'global.conf'"); |
70 |
|
71 |
my $config = new Config::IniFiles( -file => 'global.conf' ) || $log->logcroak("can't open 'global.conf'"); |
72 |
|
73 |
# read global config parametars |
74 |
foreach my $var (qw( |
75 |
dbi_dbd |
76 |
dbi_dsn |
77 |
dbi_user |
78 |
dbi_passwd |
79 |
show_progress |
80 |
my_unac_filter |
81 |
output_template |
82 |
)) { |
83 |
$self->{'global_config'}->{$var} = $config->val('global', $var); |
84 |
} |
85 |
|
86 |
# |
87 |
# read indexer config file |
88 |
# |
89 |
|
90 |
$self->{indexer_config_file} = new Config::IniFiles( -file => $self->{config_file} ) || $log->logcroak("can't open '",$self->{config_file},"'"); |
91 |
|
92 |
# create UTF-8 convertor for import_xml files |
93 |
$self->{'utf2cp'} = Text::Iconv->new('UTF-8' ,$self->{'code_page'}); |
94 |
|
95 |
# create Template toolkit instance |
96 |
$self->{'tt'} = Template->new( |
97 |
INCLUDE_PATH => ($self->{'global_config_file'}->{'output_template'} || './output_template'), |
98 |
# FILTERS => { |
99 |
# 'foo' => \&foo_filter, |
100 |
# }, |
101 |
EVAL_PERL => 1, |
102 |
); |
103 |
|
104 |
return $self; |
105 |
} |
106 |
|
107 |
=head2 open_isis |
108 |
|
109 |
Open CDS/ISIS database using OpenIsis module and read all records to memory. |
110 |
|
111 |
$webpac->open_isis( |
112 |
filename => '/data/ISIS/ISIS', |
113 |
code_page => '852', |
114 |
limit_mfn => '500', |
115 |
lookup => [ ... ], |
116 |
); |
117 |
|
118 |
By default, ISIS code page is assumed to be C<852>. |
119 |
|
120 |
If optional parametar C<limit_mfn> is set, it will read just 500 records |
121 |
from database in example above. |
122 |
|
123 |
C<lookup> argument is an array of lookups to create. Each lookup must have C<key> and |
124 |
C<val>. Optional parametar C<eval> is perl code to evaluate before storing |
125 |
value in index. |
126 |
|
127 |
lookup => [ |
128 |
{ 'key' => 'd:v900', 'val' => 'v250^a' }, |
129 |
{ 'eval' => '"v901^a" eq "Podruèje"', |
130 |
'key' => 'pa:v561^4:v562^4:v461^1', |
131 |
'val' => 'v900' }, |
132 |
] |
133 |
|
134 |
Returns number of last record read into memory (size of database, really). |
135 |
|
136 |
=cut |
137 |
|
138 |
sub open_isis { |
139 |
my $self = shift; |
140 |
my $arg = {@_}; |
141 |
|
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my $log = $self->_get_logger(); |
143 |
|
144 |
$log->logcroak("need filename") if (! $arg->{'filename'}); |
145 |
my $code_page = $arg->{'code_page'} || '852'; |
146 |
|
147 |
use OpenIsis; |
148 |
|
149 |
#$self->{'isis_code_page'} = $code_page; |
150 |
|
151 |
# create Text::Iconv object |
152 |
my $cp = Text::Iconv->new($code_page,$self->{'code_page'}); |
153 |
|
154 |
$log->info("reading ISIS database '",$arg->{'filename'},"'"); |
155 |
|
156 |
my $isis_db = OpenIsis::open($arg->{'filename'}); |
157 |
|
158 |
my $maxmfn = OpenIsis::maxRowid( $isis_db ) || 1; |
159 |
|
160 |
$maxmfn = $self->{limit_mfn} if ($self->{limit_mfn}); |
161 |
|
162 |
$log->info("processing $maxmfn records..."); |
163 |
|
164 |
# read database |
165 |
for (my $mfn = 1; $mfn <= $maxmfn; $mfn++) { |
166 |
|
167 |
# read record |
168 |
my $row = OpenIsis::read( $isis_db, $mfn ); |
169 |
foreach my $k (keys %{$row}) { |
170 |
if ($k ne "mfn") { |
171 |
foreach my $l (@{$row->{$k}}) { |
172 |
$l = $cp->convert($l); |
173 |
# has subfields? |
174 |
my $val; |
175 |
if ($l =~ m/\^/) { |
176 |
foreach my $t (split(/\^/,$l)) { |
177 |
next if (! $t); |
178 |
$val->{substr($t,0,1)} = substr($t,1); |
179 |
} |
180 |
} else { |
181 |
$val = $l; |
182 |
} |
183 |
|
184 |
push @{$self->{'data'}->{$mfn}->{$k}}, $val; |
185 |
} |
186 |
} |
187 |
|
188 |
} |
189 |
|
190 |
# create lookup |
191 |
my $rec = $self->{'data'}->{$mfn}; |
192 |
$self->create_lookup($rec, @{$arg->{'lookup'}}); |
193 |
|
194 |
} |
195 |
|
196 |
$self->{'current_mfn'} = 1; |
197 |
|
198 |
# store max mfn and return it. |
199 |
return $self->{'max_mfn'} = $maxmfn; |
200 |
} |
201 |
|
202 |
=head2 fetch_rec |
203 |
|
204 |
Fetch next record from database. It will also display progress bar (once |
205 |
it's implemented, that is). |
206 |
|
207 |
my $rec = $webpac->fetch_rec; |
208 |
|
209 |
=cut |
210 |
|
211 |
sub fetch_rec { |
212 |
my $self = shift; |
213 |
|
214 |
my $log = $self->_get_logger(); |
215 |
|
216 |
my $mfn = $self->{'current_mfn'}++ || $log->logconfess("it seems that you didn't load database!"); |
217 |
|
218 |
if ($mfn > $self->{'max_mfn'}) { |
219 |
$self->{'current_mfn'} = $self->{'max_mfn'}; |
220 |
return; |
221 |
} |
222 |
|
223 |
return $self->{'data'}->{$mfn}; |
224 |
} |
225 |
|
226 |
=head2 open_import_xml |
227 |
|
228 |
Read file from C<import_xml/> directory and parse it. |
229 |
|
230 |
$webpac->open_import_xml(type => 'isis'); |
231 |
|
232 |
=cut |
233 |
|
234 |
sub open_import_xml { |
235 |
my $self = shift; |
236 |
|
237 |
my $log = $self->_get_logger(); |
238 |
|
239 |
my $arg = {@_}; |
240 |
$log->logconfess("need type to load file from import_xml/") if (! $arg->{'type'}); |
241 |
|
242 |
$self->{'type'} = $arg->{'type'}; |
243 |
|
244 |
my $type_base = $arg->{'type'}; |
245 |
$type_base =~ s/_.*$//g; |
246 |
|
247 |
$self->{'tag'} = $type2tag{$type_base}; |
248 |
|
249 |
$log->debug("using type '",$self->{'type'},"' tag <",$self->{'tag'},">") if ($self->{'debug'}); |
250 |
|
251 |
my $f = "./import_xml/".$self->{'type'}.".xml"; |
252 |
$log->logconfess("import_xml file '$f' doesn't exist!") if (! -e "$f"); |
253 |
|
254 |
$log->debug("reading '$f'") if ($self->{'debug'}); |
255 |
|
256 |
$self->{'import_xml'} = XMLin($f, |
257 |
ForceArray => [ $self->{'tag'}, 'config', 'format' ], |
258 |
ForceContent => 1 |
259 |
); |
260 |
|
261 |
} |
262 |
|
263 |
=head2 create_lookup |
264 |
|
265 |
Create lookup from record using lookup definition. |
266 |
|
267 |
$self->create_lookup($rec, @lookups); |
268 |
|
269 |
Called internally by C<open_*> methods. |
270 |
|
271 |
=cut |
272 |
|
273 |
sub create_lookup { |
274 |
my $self = shift; |
275 |
|
276 |
my $log = $self->_get_logger(); |
277 |
|
278 |
my $rec = shift || $log->logconfess("need record to create lookup"); |
279 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
280 |
|
281 |
foreach my $i (@_) { |
282 |
if ($i->{'eval'}) { |
283 |
my $eval = $self->fill_in($rec,$i->{'eval'}); |
284 |
my $key = $self->fill_in($rec,$i->{'key'}); |
285 |
my @val = $self->fill_in($rec,$i->{'val'}); |
286 |
if ($key && @val && eval $eval) { |
287 |
push @{$self->{'lookup'}->{$key}}, @val; |
288 |
} |
289 |
} else { |
290 |
my $key = $self->fill_in($rec,$i->{'key'}); |
291 |
my @val = $self->fill_in($rec,$i->{'val'}); |
292 |
if ($key && @val) { |
293 |
push @{$self->{'lookup'}->{$key}}, @val; |
294 |
} |
295 |
} |
296 |
} |
297 |
} |
298 |
|
299 |
=head2 get_data |
300 |
|
301 |
Returns value from record. |
302 |
|
303 |
my $text = $self->get_data(\$rec,$f,$sf,$i,\$found); |
304 |
|
305 |
Arguments are: |
306 |
record reference C<$rec>, |
307 |
field C<$f>, |
308 |
optional subfiled C<$sf>, |
309 |
index for repeatable values C<$i>. |
310 |
|
311 |
Optinal variable C<$found> will be incremeted if there |
312 |
is field. |
313 |
|
314 |
Returns value or empty string. |
315 |
|
316 |
=cut |
317 |
|
318 |
sub get_data { |
319 |
my $self = shift; |
320 |
|
321 |
my ($rec,$f,$sf,$i,$found) = @_; |
322 |
|
323 |
if ($$rec->{$f}) { |
324 |
return '' if (! $$rec->{$f}->[$i]); |
325 |
if ($sf && $$rec->{$f}->[$i]->{$sf}) { |
326 |
$$found++ if (defined($$found)); |
327 |
return $$rec->{$f}->[$i]->{$sf}; |
328 |
} elsif ($$rec->{$f}->[$i]) { |
329 |
$$found++ if (defined($$found)); |
330 |
# it still might have subfield, just |
331 |
# not specified, so we'll dump all |
332 |
if ($$rec->{$f}->[$i] =~ /HASH/o) { |
333 |
my $out; |
334 |
foreach my $k (keys %{$$rec->{$f}->[$i]}) { |
335 |
$out .= $$rec->{$f}->[$i]->{$k}." "; |
336 |
} |
337 |
return $out; |
338 |
} else { |
339 |
return $$rec->{$f}->[$i]; |
340 |
} |
341 |
} |
342 |
} else { |
343 |
return ''; |
344 |
} |
345 |
} |
346 |
|
347 |
=head2 fill_in |
348 |
|
349 |
Workhourse of all: takes record from in-memory structure of database and |
350 |
strings with placeholders and returns string or array of with substituted |
351 |
values from record. |
352 |
|
353 |
my $text = $webpac->fill_in($rec,'v250^a'); |
354 |
|
355 |
Optional argument is ordinal number for repeatable fields. By default, |
356 |
it's assume to be first repeatable field (fields are perl array, so first |
357 |
element is 0). |
358 |
Following example will read second value from repeatable field. |
359 |
|
360 |
my $text = $webpac->fill_in($rec,'Title: v250^a',1); |
361 |
|
362 |
This function B<does not> perform parsing of format to inteligenty skip |
363 |
delimiters before fields which aren't used. |
364 |
|
365 |
=cut |
366 |
|
367 |
sub fill_in { |
368 |
my $self = shift; |
369 |
|
370 |
my $log = $self->_get_logger(); |
371 |
|
372 |
my $rec = shift || $log->logconfess("need data record"); |
373 |
my $format = shift || $log->logconfess("need format to parse"); |
374 |
# iteration (for repeatable fields) |
375 |
my $i = shift || 0; |
376 |
|
377 |
# FIXME remove for speedup? |
378 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
379 |
|
380 |
my $found = 0; |
381 |
|
382 |
my $eval_code; |
383 |
# remove eval{...} from beginning |
384 |
$eval_code = $1 if ($format =~ s/^eval{([^}]+)}//s); |
385 |
|
386 |
# do actual replacement of placeholders |
387 |
$format =~ s/v(\d+)(?:\^(\w))*/$self->get_data(\$rec,$1,$2,$i,\$found)/ges; |
388 |
|
389 |
if ($found) { |
390 |
if ($eval_code) { |
391 |
my $eval = $self->fill_in($rec,$eval_code,$i); |
392 |
return if (! $self->_eval($eval)); |
393 |
} |
394 |
# do we have lookups? |
395 |
$log->debug("test format '$format' for lookups"); |
396 |
if ($format =~ /\[[^\[\]]+\]/o) { |
397 |
return $self->lookup($format); |
398 |
} else { |
399 |
return $format; |
400 |
} |
401 |
} else { |
402 |
return; |
403 |
} |
404 |
} |
405 |
|
406 |
=head2 lookup |
407 |
|
408 |
Perform lookups on format supplied to it. |
409 |
|
410 |
my $text = $self->lookup('[v900]'); |
411 |
|
412 |
Lookups can be nested (like C<[d:[a:[v900]]]>). |
413 |
|
414 |
=cut |
415 |
|
416 |
sub lookup { |
417 |
my $self = shift; |
418 |
|
419 |
my $log = $self->_get_logger(); |
420 |
|
421 |
my $tmp = shift || $log->logconfess("need format"); |
422 |
|
423 |
if ($tmp =~ /\[[^\[\]]+\]/o) { |
424 |
my @in = ( $tmp ); |
425 |
|
426 |
$log->debug("lookup for: ",$tmp); |
427 |
|
428 |
my @out; |
429 |
while (my $f = shift @in) { |
430 |
if ($f =~ /\[([^\[\]]+)\]/) { |
431 |
my $k = $1; |
432 |
if ($self->{'lookup'}->{$k}) { |
433 |
foreach my $nv (@{$self->{'lookup'}->{$k}}) { |
434 |
my $tmp2 = $f; |
435 |
$tmp2 =~ s/\[$k\]/$nv/g; |
436 |
push @in, $tmp2; |
437 |
} |
438 |
} else { |
439 |
undef $f; |
440 |
} |
441 |
} elsif ($f) { |
442 |
push @out, $f; |
443 |
} |
444 |
} |
445 |
return @out; |
446 |
} else { |
447 |
return $tmp; |
448 |
} |
449 |
} |
450 |
|
451 |
=head2 parse |
452 |
|
453 |
Perform smart parsing of string, skipping delimiters for fields which aren't |
454 |
defined. It can also eval code in format starting with C<eval{...}> and |
455 |
return output or nothing depending on eval code. |
456 |
|
457 |
my $text = $webpac->parse($rec,'eval{"v901^a" eq "Deskriptor"}descriptor: v250^a', $i); |
458 |
|
459 |
=cut |
460 |
|
461 |
sub parse { |
462 |
my $self = shift; |
463 |
|
464 |
my ($rec, $format_utf8, $i) = @_; |
465 |
|
466 |
return if (! $format_utf8); |
467 |
|
468 |
my $log = $self->_get_logger(); |
469 |
|
470 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
471 |
$log->logconfess("need utf2cp Text::Iconv object!") if (! $self->{'utf2cp'}); |
472 |
|
473 |
$i = 0 if (! $i); |
474 |
|
475 |
my $format = $self->{'utf2cp'}->convert($format_utf8) || $log->logconfess("can't convert '$format_utf8' from UTF-8 to ",$self->{'code_page'}); |
476 |
|
477 |
my @out; |
478 |
|
479 |
my $eval_code; |
480 |
# remove eval{...} from beginning |
481 |
$eval_code = $1 if ($format =~ s/^eval{([^}]+)}//s); |
482 |
|
483 |
my $prefix; |
484 |
my $all_found=0; |
485 |
|
486 |
while ($format =~ s/^(.*?)v(\d+)(?:\^(\w))*//s) { |
487 |
|
488 |
my $del = $1 || ''; |
489 |
$prefix ||= $del if ($all_found == 0); |
490 |
|
491 |
my $found = 0; |
492 |
my $tmp = $self->get_data(\$rec,$2,$3,$i,\$found); |
493 |
|
494 |
if ($found) { |
495 |
push @out, $del; |
496 |
push @out, $tmp; |
497 |
$all_found += $found; |
498 |
} |
499 |
} |
500 |
|
501 |
return if (! $all_found); |
502 |
|
503 |
my $out = join('',@out) . $format; |
504 |
|
505 |
# add prefix if not there |
506 |
$out = $prefix . $out if ($out !~ m/^\Q$prefix\E/); |
507 |
|
508 |
if ($eval_code) { |
509 |
my $eval = $self->fill_in($rec,$eval_code,$i); |
510 |
$log->debug("about to eval ",$eval," [$out]"); |
511 |
return if (! $self->_eval($eval)); |
512 |
} |
513 |
|
514 |
return $out; |
515 |
} |
516 |
|
517 |
=head2 parse_to_arr |
518 |
|
519 |
Similar to C<parse>, but returns array of all repeatable fields |
520 |
|
521 |
my @arr = $webpac->parse_to_arr($rec,'v250^a'); |
522 |
|
523 |
=cut |
524 |
|
525 |
sub parse_to_arr { |
526 |
my $self = shift; |
527 |
|
528 |
my ($rec, $format_utf8) = @_; |
529 |
|
530 |
my $log = $self->_get_logger(); |
531 |
|
532 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
533 |
return if (! $format_utf8); |
534 |
|
535 |
my $i = 0; |
536 |
my @arr; |
537 |
|
538 |
while (my $v = $self->parse($rec,$format_utf8,$i++)) { |
539 |
push @arr, $v; |
540 |
} |
541 |
|
542 |
return @arr; |
543 |
} |
544 |
|
545 |
=head2 data_structure |
546 |
|
547 |
Create in-memory data structure which represents layout from C<import_xml>. |
548 |
It is used later to produce output. |
549 |
|
550 |
my @ds = $webpac->data_structure($rec); |
551 |
|
552 |
=cut |
553 |
|
554 |
sub data_structure { |
555 |
my $self = shift; |
556 |
|
557 |
my $log = $self->_get_logger(); |
558 |
|
559 |
my $rec = shift; |
560 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
561 |
|
562 |
my @sorted_tags; |
563 |
if ($self->{tags_by_order}) { |
564 |
@sorted_tags = @{$self->{tags_by_order}}; |
565 |
} else { |
566 |
@sorted_tags = sort { $self->_sort_by_order } keys %{$self->{'import_xml'}->{'indexer'}}; |
567 |
$self->{tags_by_order} = \@sorted_tags; |
568 |
} |
569 |
|
570 |
my @ds; |
571 |
|
572 |
foreach my $field (@sorted_tags) { |
573 |
|
574 |
my $row; |
575 |
|
576 |
#print "field $field [",$self->{'tag'},"] = ",Dumper($self->{'import_xml'}->{'indexer'}->{$field}->{$self->{'tag'}}); |
577 |
|
578 |
foreach my $tag (@{$self->{'import_xml'}->{'indexer'}->{$field}->{$self->{'tag'}}}) { |
579 |
my @v = $self->parse_to_arr($rec,$tag->{'content'}); |
580 |
|
581 |
next if (! @v); |
582 |
|
583 |
# does tag have type? |
584 |
if ($tag->{'type'}) { |
585 |
push @{$row->{$tag->{'type'}}}, @v; |
586 |
} else { |
587 |
push @{$row->{'display'}}, @v; |
588 |
push @{$row->{'swish'}}, @v; |
589 |
} |
590 |
} |
591 |
|
592 |
if ($row) { |
593 |
$row->{'tag'} = $field; |
594 |
push @ds, $row; |
595 |
} |
596 |
|
597 |
} |
598 |
|
599 |
return @ds; |
600 |
|
601 |
} |
602 |
|
603 |
=head2 output |
604 |
|
605 |
Create output from in-memory data structure using Template Toolkit template. |
606 |
|
607 |
my $text = $webpac->output( template => 'text.tt', data => @ds ); |
608 |
|
609 |
=cut |
610 |
|
611 |
sub output { |
612 |
my $self = shift; |
613 |
|
614 |
my $args = {@_}; |
615 |
|
616 |
my $log = $self->_get_logger(); |
617 |
|
618 |
$log->logconfess("need template name") if (! $args->{'template'}); |
619 |
$log->logconfess("need data array") if (! $args->{'data'}); |
620 |
|
621 |
my $out; |
622 |
|
623 |
$self->{'tt'}->process( |
624 |
$args->{'template'}, |
625 |
$args, |
626 |
\$out |
627 |
) || confess $self->{'tt'}->error(); |
628 |
|
629 |
return $out; |
630 |
} |
631 |
|
632 |
# |
633 |
# |
634 |
# |
635 |
|
636 |
=head1 INTERNAL METHODS |
637 |
|
638 |
Here is a quick list of internal methods, mostly useful to turn debugging |
639 |
on them (see L<LOGGING> below for explanation). |
640 |
|
641 |
=cut |
642 |
|
643 |
=head2 _eval |
644 |
|
645 |
Internal function to eval code without C<strict 'subs'>. |
646 |
|
647 |
=cut |
648 |
|
649 |
sub _eval { |
650 |
my $self = shift; |
651 |
|
652 |
my $code = shift || return; |
653 |
|
654 |
my $log = $self->_get_logger(); |
655 |
|
656 |
no strict 'subs'; |
657 |
my $ret = eval $code; |
658 |
if ($@) { |
659 |
$log->error("problem with eval code [$code]: $@"); |
660 |
} |
661 |
|
662 |
$log->debug("eval: ",$code," [",$ret,"]"); |
663 |
|
664 |
return $ret || 0; |
665 |
} |
666 |
|
667 |
=head2 _sort_by_order |
668 |
|
669 |
Sort xml tags data structure accoding to C<order=""> attribute. |
670 |
|
671 |
=cut |
672 |
|
673 |
sub _sort_by_order { |
674 |
my $self = shift; |
675 |
|
676 |
my $va = $self->{'import_xml'}->{'indexer'}->{$a}->{'order'} || |
677 |
$self->{'import_xml'}->{'indexer'}->{$a}; |
678 |
my $vb = $self->{'import_xml'}->{'indexer'}->{$b}->{'order'} || |
679 |
$self->{'import_xml'}->{'indexer'}->{$b}; |
680 |
|
681 |
return $va <=> $vb; |
682 |
} |
683 |
|
684 |
sub _get_logger { |
685 |
my $self = shift; |
686 |
|
687 |
my @c = caller(1); |
688 |
return get_logger($c[3]); |
689 |
} |
690 |
|
691 |
# |
692 |
# |
693 |
# |
694 |
|
695 |
=head1 LOGGING |
696 |
|
697 |
Logging in WebPAC is performed by L<Log::Log4perl> with config file |
698 |
C<log.conf>. |
699 |
|
700 |
Methods defined above have different levels of logging, so |
701 |
it's descriptions will be useful to turn (mostry B<debug> logging) on |
702 |
or off to see why WabPAC isn't perforing as you expect it (it might even |
703 |
be a bug!). |
704 |
|
705 |
B<This is different from normal Log4perl behaviour>. To repeat, you can |
706 |
also use method names, and not only classes (which are just few) |
707 |
to filter logging. |
708 |
|
709 |
=cut |
710 |
|
711 |
1; |