/[webpac2]/trunk/lib/WebPAC/Input.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 286 by dpavlin, Sun Dec 18 21:06:46 2005 UTC revision 338 by dpavlin, Sat Dec 31 16:50:06 2005 UTC
# Line 3  package WebPAC::Input; Line 3  package WebPAC::Input;
3  use warnings;  use warnings;
4  use strict;  use strict;
5    
 use blib;  
   
6  use WebPAC::Common;  use WebPAC::Common;
7  use base qw/WebPAC::Common/;  use base qw/WebPAC::Common/;
8  use Text::Iconv;  use Text::Iconv;
9    use Data::Dumper;
10    
11  =head1 NAME  =head1 NAME
12    
# Line 92  sub new { Line 91  sub new {
91          $module =~ s#::#/#g;          $module =~ s#::#/#g;
92          $module .= '.pm';          $module .= '.pm';
93          $log->debug("require low-level module $self->{module} from $module");          $log->debug("require low-level module $self->{module} from $module");
94    
95          require $module;          require $module;
96          eval $self->{module} .'->import';          #eval $self->{module} .'->import';
97    
98          # check if required subclasses are implemented          # check if required subclasses are implemented
99          foreach my $subclass (qw/open_db fetch_rec/) {          foreach my $subclass (qw/open_db fetch_rec init/) {
100                  if ( $self->can($subclass) ) {                  my $n = $self->{module} . '::' . $subclass;
101                          $log->debug("imported $subclass");                  if (! defined &{ $n }) {
102                            my $missing = "missing $subclass in $self->{module}";
103                            $self->{$subclass} = sub { $log->logwarn($missing) };
104                  } else {                  } else {
105                          $log->warn("missing $subclass in $self->{module}");                          $self->{$subclass} = \&{ $n };
106                  }                  }
107          }          }
108    
109          if ($self->can('init')) {          if ($self->{init}) {
110                  $log->debug("calling init");                  $log->debug("calling init");
111                  $self->init(@_);                  $self->{init}->($self, @_);
112          }          }
113    
114          $self->{'code_page'} ||= 'ISO-8859-2';          $self->{'code_page'} ||= 'ISO-8859-2';
# Line 173  sub open { Line 175  sub open {
175          my $code_page = $arg->{'code_page'} || '852';          my $code_page = $arg->{'code_page'} || '852';
176    
177          # store data in object          # store data in object
178          $self->{'code_page'} = $code_page;          $self->{'input_code_page'} = $code_page;
179          foreach my $v (qw/path offset limit/) {          foreach my $v (qw/path offset limit/) {
180                  $self->{$v} = $arg->{$v} if ($arg->{$v});                  $self->{$v} = $arg->{$v} if ($arg->{$v});
181          }          }
# Line 181  sub open { Line 183  sub open {
183          # create Text::Iconv object          # create Text::Iconv object
184          $self->{iconv} = Text::Iconv->new($code_page,$self->{'code_page'});          $self->{iconv} = Text::Iconv->new($code_page,$self->{'code_page'});
185    
186          my ($db, $size) = $self->open_db(          my ($db, $size) = $self->{open_db}->( $self,
187                  path => $arg->{path},                  path => $arg->{path},
188          );          );
189    
# Line 206  sub open { Line 208  sub open {
208          }          }
209    
210          if ($self->{limit}) {          if ($self->{limit}) {
211                  $log->info("limiting to ",$self->{limit}," records");                  $log->debug("limiting to ",$self->{limit}," records");
212                  $limit = $offset + $self->{limit} - 1;                  $limit = $offset + $self->{limit} - 1;
213                  $limit = $size if ($limit > $size);                  $limit = $size if ($limit > $size);
214          }          }
# Line 214  sub open { Line 216  sub open {
216          # store size for later          # store size for later
217          $self->{size} = ($limit - $offset) ? ($limit - $offset + 1) : 0;          $self->{size} = ($limit - $offset) ? ($limit - $offset + 1) : 0;
218    
219          $log->info("processing $self->{size} records in $code_page, convert to $self->{code_page}");          $log->info("processing $self->{size}/$size records [$offset-$limit] convert $code_page -> $self->{code_page}");
220    
221          # read database          # read database
222          for (my $pos = $offset; $pos <= $limit; $mfn++) {          for (my $pos = $offset; $pos <= $limit; $pos++) {
223    
224                  $log->debug("position: $pos\n");                  $log->debug("position: $pos\n");
225    
226                  my $rec = $self->fetch_rec( $db, $pos );                  my $rec = $self->{fetch_rec}->($self, $db, $pos );
227    
228                    $log->debug(sub { Dumper($rec) });
229    
230                  if (! $rec) {                  if (! $rec) {
231                          $log->warn("record $pos empty? skipping...");                          $log->warn("record $pos empty? skipping...");
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