/[webpac]/trunk2/lib/WebPAC.pm
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 358 by dpavlin, Wed Jun 16 14:31:33 2004 UTC revision 363 by dpavlin, Wed Jun 16 20:05:19 2004 UTC
# Line 3  package WebPAC; Line 3  package WebPAC;
3  use Carp;  use Carp;
4  use Text::Iconv;  use Text::Iconv;
5  use Config::IniFiles;  use Config::IniFiles;
6    use XML::Simple;
7    
8  use Data::Dumper;  use Data::Dumper;
9    
# Line 34  which describes databases to be indexed. Line 35  which describes databases to be indexed.
35    
36  =cut  =cut
37    
38    # mapping between data type and tag which specify
39    # format in XML file
40    my %type2tag = (
41            'isis' => 'isis',
42    #       'excel' => 'column',
43    #       'marc' => 'marc',
44    #       'feed' => 'feed'
45    );
46    
47  sub new {  sub new {
48          my $class = shift;          my $class = shift;
49          my $self = {@_};          my $self = {@_};
# Line 67  sub new { Line 77  sub new {
77    
78          $self->{indexer_config_file} = new Config::IniFiles( -file => $self->{config_file} ) || croak "can't open '$self->{config_file}'";          $self->{indexer_config_file} = new Config::IniFiles( -file => $self->{config_file} ) || croak "can't open '$self->{config_file}'";
79    
         # read global config parametars  
         foreach my $var (qw(  
                         dbi_dbd  
                         dbi_dsn  
                         dbi_user  
                         dbi_passwd  
                         show_progress  
                         my_unac_filter  
                 )) {  
                 $self->{global_config}->{$var} = $self->{global_config_file}->val('global', $var);  
         }  
   
80          return $self;          return $self;
81  }  }
82    
# Line 127  sub open_isis { Line 125  sub open_isis {
125          # create Text::Iconv object          # create Text::Iconv object
126          my $cp = Text::Iconv->new($code_page,$self->{'code_page'});          my $cp = Text::Iconv->new($code_page,$self->{'code_page'});
127    
128            print STDERR "reading ISIS database '",$arg->{'filename'},"'\n" if ($self->{'debug'});
129    
130          my $isis_db = OpenIsis::open($arg->{'filename'});          my $isis_db = OpenIsis::open($arg->{'filename'});
131    
132          my $maxmfn = OpenIsis::maxRowid( $isis_db ) || 1;          my $maxmfn = OpenIsis::maxRowid( $isis_db ) || 1;
133    
134          $maxmfn = $self->{limit_mfn} if ($self->{limit_mfn});          $maxmfn = $self->{limit_mfn} if ($self->{limit_mfn});
135    
136            print STDERR "processing $maxmfn records...\n" if ($self->{'debug'});
137    
138          # read database          # read database
139          for (my $mfn = 1; $mfn <= $maxmfn; $mfn++) {          for (my $mfn = 1; $mfn <= $maxmfn; $mfn++) {
140    
# Line 165  sub open_isis { Line 167  sub open_isis {
167    
168          }          }
169    
170            $self->{'current_mfn'} = 1;
171    
172          # store max mfn and return it.          # store max mfn and return it.
173          return $self->{'max_mfn'} = $maxmfn;          return $self->{'max_mfn'} = $maxmfn;
174  }  }
175    
176    =head2 fetch_rec
177    
178    Fetch next record from database. It will also display progress bar (once
179    it's implemented, that is).
180    
181     my $rec = $webpac->fetch_rec;
182    
183    =cut
184    
185    sub fetch_rec {
186            my $self = shift;
187    
188            my $mfn = $self->{'current_mfn'}++ || confess "it seems that you didn't load database!";
189    
190            if ($mfn > $self->{'max_mfn'}) {
191                    $self->{'current_mfn'} = $self->{'max_mfn'};
192                    return;
193            }
194    
195            return $self->{'data'}->{$mfn};
196    }
197    
198    =head2 open_import_xml
199    
200    Read file from C<import_xml/> directory and parse it.
201    
202     $webpac->open_import_xml(type => 'isis');
203    
204    =cut
205    
206    sub open_import_xml {
207            my $self = shift;
208    
209            my $arg = {@_};
210            confess "need type to load file from import_xml/" if (! $arg->{'type'});
211    
212            my $type = $arg->{'type'};
213    
214            my $type_base = $type;
215            $type_base =~ s/_.*$//g;
216    
217            my $f = "./import_xml/$type.xml";
218            confess "import_xml file '$f' doesn't exist!" if (! -e "$f");
219    
220            print STDERR "reading '$f'\n" if ($self->{'debug'});
221    
222            $self->{'import_xml'} = XMLin($f,
223                    ForceArray => [ $type2tag{$type_base}, 'config', 'format' ],
224                    ForceContent => 1
225            );
226    
227            print Dumper($self->{'import_xml'});
228    
229    }
230    
231  =head2 create_lookup  =head2 create_lookup
232    
233  Create lookup from record using lookup definition.  Create lookup from record using lookup definition.
# Line 268  sub fill_in { Line 327  sub fill_in {
327    
328          my $found = 0;          my $found = 0;
329    
330            my $eval_code;
331            # remove eval{...} from beginning
332            $eval_code = $1 if ($format =~ s/^eval{([^}]+)}//s);
333    
334          # do actual replacement of placeholders          # do actual replacement of placeholders
335          $format =~ s/v(\d+)(?:\^(\w))*/$self->get_data(\$rec,$1,$2,$i,\$found)/ges;          $format =~ s/v(\d+)(?:\^(\w))*/$self->get_data(\$rec,$1,$2,$i,\$found)/ges;
336    
337          if ($found) {          if ($found) {
338                    if ($eval_code) {
339                            my $eval = $self->fill_in($rec,$eval_code,$i);
340                            return if (! eval $eval);
341                    }
342                  # do we have lookups?                  # do we have lookups?
343                  if ($format =~ /\[[^\[\]]+\]/o) {                  if ($format =~ /\[[^\[\]]+\]/o) {
344                          return $self->lookup($format);                          return $self->lookup($format);
# Line 355  sub parse { Line 422  sub parse {
422          my $prefix;          my $prefix;
423          my $all_found=0;          my $all_found=0;
424    
425  print "## $format\n";  #print "## $format\n";
426          while ($format =~ s/^(.*?)v(\d+)(?:\^(\w))*//s) {          while ($format =~ s/^(.*?)v(\d+)(?:\^(\w))*//s) {
427  print "## [ $1 | $2 | $3 ] $format\n";  #print "## [ $1 | $2 | $3 ] $format\n";
428    
429                  my $del = $1 || '';                  my $del = $1 || '';
430                  $prefix ||= $del;                  $prefix ||= $del if ($all_found == 0);
431    
432                  my $found = 0;                  my $found = 0;
433                  my $tmp = $self->get_data(\$rec,$2,$3,$i,\$found);                  my $tmp = $self->get_data(\$rec,$2,$3,$i,\$found);
# Line 374  print "## [ $1 | $2 | $3 ] $format\n"; Line 441  print "## [ $1 | $2 | $3 ] $format\n";
441    
442          return if (! $all_found);          return if (! $all_found);
443    
         print Dumper($prefix, \@out);  
   
444          my $out = join('',@out) . $format;          my $out = join('',@out) . $format;
445    
446          # add prefix if not there          # add prefix if not there
447          $out = $prefix . $out if ($out !~ m/^\Q$prefix\E/);          $out = $prefix . $out if ($out !~ m/^\Q$prefix\E/);
448                    
449            if ($eval_code) {
450                    my $eval = $self->fill_in($rec,$eval_code,$i);
451                    return if (! eval $eval);
452            }
453    
454          return $out;          return $out;
455  }  }
456    
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