/[webpac2]/trunk/lib/WebPAC/Search/Estraier.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 103 by dpavlin, Tue Nov 22 16:11:48 2005 UTC revision 343 by dpavlin, Sat Jan 7 01:40:01 2006 UTC
# Line 3  package WebPAC::Search::Estraier; Line 3  package WebPAC::Search::Estraier;
3  use warnings;  use warnings;
4  use strict;  use strict;
5    
6  use HyperEstraier;  use Search::Estraier;
7  use Text::Iconv;  use Text::Iconv;
8  use Data::Dumper;  use Data::Dumper;
9    
# Line 13  WebPAC::Search::Estraier - search Hyper Line 13  WebPAC::Search::Estraier - search Hyper
13    
14  =head1 VERSION  =head1 VERSION
15    
16  Version 0.01  Version 0.06
17    
18  =cut  =cut
19    
20  our $VERSION = '0.01';  our $VERSION = '0.06';
21    
22  =head1 SYNOPSIS  =head1 SYNOPSIS
23    
# Line 31  L<WebPAC::Output::Estraier>. Line 31  L<WebPAC::Output::Estraier>.
31  Connect to Hyper Estraier index using HTTP  Connect to Hyper Estraier index using HTTP
32    
33   my $est = new WebPAC::Search::Estraier(   my $est = new WebPAC::Search::Estraier(
34          url => 'http://localhost:1978/node/webpac2',          masterurl => 'http://localhost:1978/',
35            database => 'webpac2',
36          user => 'admin',          user => 'admin',
37          passwd => 'admin',          passwd => 'admin',
38          encoding => 'iso-8859-2',          encoding => 'iso-8859-2',
# Line 42  Options are: Line 43  Options are:
43    
44  =over 4  =over 4
45    
46  =item url  =item maseterurl
47    
48  URI to C<estmaster> node  URI to C<estmaster> node
49    
50    =item database
51    
52    name of C<estmaster> node
53    
54  =item user  =item user
55    
56  C<estmaster> user with read rights  C<estmaster> user with read rights
# Line 76  sub new { Line 81  sub new {
81    
82          my $log = $self->_get_logger;          my $log = $self->_get_logger;
83    
84          foreach my $p (qw/url user passwd/) {          foreach my $p (qw/masterurl user passwd/) {
85                  $log->logdie("need $p") unless ($self->{$p});                  $log->logdie("need $p") unless ($self->{$p});
86          }          }
87    
88            my $url = $self->{masterurl} . '/node/' . $self->{database};
89            $self->{url} = $url;
90    
91          $log->info("opening Hyper Estraier index $self->{'url'} as $self->{'user'}");          $log->info("opening Hyper Estraier index $self->{'url'} as $self->{'user'}");
92    
93          $self->{'db'} = HyperEstraier::Node->new($self->{'url'});          $self->{db} = Search::Estraier::Node->new;
94          $self->{'db'}->set_auth($self->{'user'}, $self->{'passwd'});          $self->{db}->set_url($self->{'url'});
95            $self->{db}->set_auth($self->{'user'}, $self->{'passwd'});
96    
97          my $encoding = $self->{'encoding'} || 'ISO-8859-2';          my $encoding = $self->{'encoding'} || 'ISO-8859-2';
98          $log->info("using encoding $encoding");          $log->info("using encoding $encoding");
# Line 100  sub new { Line 109  sub new {
109  Locate items in index  Locate items in index
110    
111    my @results = $est->search(    my @results = $est->search(
112          query => 'name of book or novel',          phrase => 'name of book or novel',
113          attr => qw/PersonalName TitleProper/,          add_attr => [
114                    "filepath ISTRINC $q",
115                    "size NUMGT 100",
116            ],
117            get_attr => qw/PersonalName TitleProper/,
118            order => 'NUMD',
119            max => 100,
120            options => $HyperEstraier::Condition::SURE,
121            page => 42,
122            depth => 0,
123    );    );
124    
125    Options are close match to Hyper Estraier API, except C<get_attr> which defines
126    attributes which will be returned in hash for each record.
127    
128  Results are returned as hash array with keys named by attributes  Results are returned as hash array with keys named by attributes
129    
130    Pages are numbered C< 1 ... hits/max >.
131    
132  =cut  =cut
133    
134  sub search {  sub search {
# Line 115  sub search { Line 138  sub search {
138    
139          my $log = $self->_get_logger;          my $log = $self->_get_logger;
140    
141          $self->confess('need db in object') unless ($self->{'db'});          #$log->debug( 'search args: ' . Dumper($args) );
142          $self->confess('need attr') unless ($args->{'attr'});  
143            $self->confess('need db in object') unless ($self->{db});
144            $self->confess('need get_attr') unless ($args->{get_attr});
145    
146          $self->confess("need attr as array not " . ref($args->{'attr'}) ) unless (ref($args->{'attr'}) eq 'ARRAY');          $self->confess("need get_attr as array not " . ref($args->{get_attr}) ) unless (ref($args->{get_attr}) eq 'ARRAY');
147    
148          my $q = $args->{'query'};          my $q = $args->{phrase};
149    
150          my $cond = HyperEstraier::Condition->new();          $log->debug("args: " . Dumper( $args ));
151  #       $cond->add_attr("filepath ISTRINC $q");  
152            my $cond = Search::Estraier::Condition->new();
153            if ( ref($args->{add_attr}) eq 'ARRAY' ) {
154                    $log->debug("adding search attributes: " . join(", ", @{ $args->{add_attr} }) );
155                    map {
156                            $cond->add_attr( $self->{iconv}->convert( $_ ) );
157                            $log->debug(" + $_");
158                    } @{ $args->{add_attr} };
159            };
160    
161            $cond->set_phrase( $self->{iconv}->convert($q) ) if ($q);
162            $cond->set_options( $args->{options} ) if ($args->{options});
163            $cond->set_order( $args->{order} ) if ($args->{order});
164    
165            my $max = $args->{max} || 7;
166            my $page = $args->{page} || 1;
167            if ($page < 1) {
168                    $log->warn("page number $page < 1");
169                    $page = 1;
170            }
171    
172          $cond->set_phrase( $self->{'iconv'}->convert( $q ) ) if ($q);          $cond->set_max( $page * $max );
         $cond->set_max( $args->{'max'} ) if ($args->{'max'});  
 #       $cond->set_options( $HyperEstraier::Condition::SURE );  
 #       $cond->set_order( 'NUMD' );  
173    
174          my $result = $self->{'db'}->search($cond, 0) ||          my $result = $self->{db}->search($cond, ( $args->{depth} || 0 )) ||
175                  $log->die("can't search for ", sub { Dumper( $args ) });                  $log->die("can't search for ", sub { Dumper( $args ) });
176    
177          my $hits = $result->doc_num;          my $hits = $result->doc_num;
# Line 138  sub search { Line 179  sub search {
179    
180          my @results;          my @results;
181    
182          for my $i ( 0 .. ( $hits - 1 ) ) {          for my $i ( (($page - 1) * $max) .. ( $hits - 1 ) ) {
183    
184                  #$log->debug("get_doc($i)");                  #$log->debug("get_doc($i)");
185                  my $doc = $result->get_doc( $i );                  my $doc = $result->get_doc( $i );
# Line 149  sub search { Line 190  sub search {
190    
191                  my $hash;                  my $hash;
192    
193                  foreach my $attr (@{ $args->{'attr'} }) {                  foreach my $attr (@{ $args->{get_attr} }) {
194                          my $val = $doc->attr( $attr );                          my $val = $doc->attr( $attr );
195                          #$log->debug("attr $attr = ", $val || 'undef');                          #$log->debug("attr $attr = ", $val || 'undef');
196                          $hash->{$attr} = $self->{'iconv'}->convert( $val ) if (defined($val));                          $hash->{$attr} = $self->{iconv}->convert( $val ) if (defined($val));
197                  }                  }
198    
199                  if ($hash) {                  if ($hash) {
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