/[webpac2]/trunk/lib/WebPAC/Output/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 74 by dpavlin, Sun Nov 20 20:13:39 2005 UTC revision 246 by dpavlin, Wed Dec 14 23:08:11 2005 UTC
# Line 8  use base qw/WebPAC::Common/; Line 8  use base qw/WebPAC::Common/;
8  use HyperEstraier;  use HyperEstraier;
9  use Text::Iconv;  use Text::Iconv;
10  use Data::Dumper;  use Data::Dumper;
11    use LWP;
12    use URI::Escape;
13    
14  =head1 NAME  =head1 NAME
15    
# Line 15  WebPAC::Output::Estraier - Create Hyper Line 17  WebPAC::Output::Estraier - Create Hyper
17    
18  =head1 VERSION  =head1 VERSION
19    
20  Version 0.01  Version 0.04
21    
22  =cut  =cut
23    
24  our $VERSION = '0.01';  our $VERSION = '0.04';
25    
26  =head1 SYNOPSIS  =head1 SYNOPSIS
27    
# Line 33  type C<search>. Line 35  type C<search>.
35  Connect to Hyper Estraier index using HTTP  Connect to Hyper Estraier index using HTTP
36    
37   my $est = new WebPAC::Output::Estraier(   my $est = new WebPAC::Output::Estraier(
38          url => 'http://localhost:1978/node/webpac2',          masterurl => 'http://localhost:1978/',
39          user => 'admin',          user => 'admin',
40          passwd => 'admin',          passwd => 'admin',
41          database => 'demo',          database => 'demo',
# Line 44  Options are: Line 46  Options are:
46    
47  =over 4  =over 4
48    
49  =item url  =item masterurl
50    
51  URI to C<estmaster> node  URI to C<estmaster> node
52    
# Line 79  sub new { Line 81  sub new {
81    
82          my $log = $self->_get_logger;          my $log = $self->_get_logger;
83    
84          foreach my $p (qw/url user passwd/) {          #$log->debug("self: ", sub { Dumper($self) });
85    
86            foreach my $p (qw/masterurl user passwd database/) {
87                  $log->logdie("need $p") unless ($self->{$p});                  $log->logdie("need $p") unless ($self->{$p});
88          }          }
89    
90          $log->info("opening Hyper Estraier index $self->{'url'}");          my $url = $self->{masterurl} . '/node/' . $self->{database};
91            $self->{url} = $url;
92    
93            $log->info("opening Hyper Estraier index $self->{url}");
94    
95            my $nodes = $self->est_master( action => 'nodelist' );
96    
97            $log->debug("nodes found: $nodes");
98    
99            if ($nodes !~ m/^$self->{database}\t/sm) {
100                    $log->info("creating index $url");
101                    $self->est_master(
102                            action => 'nodeadd',
103                            name => $self->{database},
104                            label => "WebPAC $self->{database}",
105                    ) || $log->logdie("can't create Hyper Estraier node $self->{database}");
106            }
107    
108          $self->{'db'} = HyperEstraier::Node->new($self->{'url'});          $self->{'db'} = HyperEstraier::Node->new($self->{url});
109          $self->{'db'}->set_auth($self->{'user'}, $self->{'passwd'});          $self->{'db'}->set_auth($self->{'user'}, $self->{passwd});
110    
111          my $encoding = $self->{'encoding'} || 'ISO-8859-2';          my $encoding = $self->{'encoding'} || 'ISO-8859-2';
112          $log->info("using encoding $encoding");          $log->info("using encoding $encoding");
113    
114          my $iconv = new Text::Iconv('iso-8859-2', 'utf-8');          $self->{'iconv'} = new Text::Iconv($encoding, 'UTF-8') or
115                    $log->logdie("can't create conversion from $encoding to UTF-8");
116    
117          $self ? return $self : return undef;          $self ? return $self : return undef;
118  }  }
119    
120    
121  =head2 add  =head2 add
122    
123  Adds one entry to database.  Adds one entry to database.
# Line 104  Adds one entry to database. Line 126  Adds one entry to database.
126          id => 42,          id => 42,
127          ds => $ds,          ds => $ds,
128          type => 'display',          type => 'display',
         url_prefix => 'database name',  
129          text => 'optional text from which snippet is created',          text => 'optional text from which snippet is created',
130    );    );
131    
132  This function will create  entries in index using following URI format:  This function will create  entries in index using following URI format:
133    
134    C<file:///database%20name/000>    C<file:///type/database%20name/000>
135    
136  Each tag in C<data_structure> with specified C<type> will create one  Each tag in C<data_structure> with specified C<type> will create one
137  attribute and corresponding hidden text (used for search).  attribute and corresponding hidden text (used for search).
# Line 132  sub add { Line 153  sub add {
153          }          }
154    
155          my $type = $args->{'type'};          my $type = $args->{'type'};
156          my $mfn = $args->{'id'};          my $id = $args->{'id'};
157    
158          my $uri = "file:///$type/$database/$mfn";          my $uri = "file:///$type/$database/$id";
159          $log->debug("creating $uri");          $log->debug("creating $uri");
160    
161          my $doc = HyperEstraier::Document->new;          my $doc = HyperEstraier::Document->new;
162          $doc->add_attr('@uri', $uri);          $doc->add_attr('@uri', $self->{'iconv'}->convert($uri) );
163    
164          $log->debug("ds = ", sub { Dumper($args->{'ds'}) } );          $log->debug("ds = ", sub { Dumper($args->{'ds'}) } );
165    
166          # filter all tags which have type defined          # filter all tags which have type defined
167          my @tags = grep {          my @tags = grep {
168                  defined( $args->{'ds'}->{$_}->{$type} )                  ref($args->{'ds'}->{$_}) eq 'HASH' && defined( $args->{'ds'}->{$_}->{$type} )
169          } keys %{ $args->{'ds'} };          } keys %{ $args->{'ds'} };
170    
171          $log->debug("tags = ", join(",", @tags));          $log->debug("tags = ", join(",", @tags));
# Line 157  sub add { Line 178  sub add {
178    
179                  $log->logconfess("no values for $tag/$type") unless ($vals);                  $log->logconfess("no values for $tag/$type") unless ($vals);
180    
181                  $doc->add_attr($tag, $vals);                  $vals = $self->{'iconv'}->convert( $vals ) or
182                  $doc->add_hidden_text($vals);                          $log->logdie("can't convert '$vals' to UTF-8");
183    
184                    $doc->add_attr( $tag, $vals );
185                    $doc->add_hidden_text( $vals );
186          }          }
187    
188          my $text = $args->{'text'};          my $text = $args->{'text'};
189          $doc->add_text( $text ) if ( $text );          if ( $text ) {
190                    $text = $self->{'iconv'}->convert( $text ) or
191                            $log->logdie("can't convert '$text' to UTF-8");
192                    $doc->add_text( $text );
193            }
194    
195          $log->debug("adding ", sub { $doc->dump_draft } );          $log->debug("adding ", sub { $doc->dump_draft } );
196          $self->{'db'}->put_doc($doc) || $log->die("can't add document $uri to index");          $self->{'db'}->put_doc($doc) || $log->logdie("can't add document $uri to node " . $self->{url} . " status: " . $self->{db}->status());
197    
198          return 1;          return 1;
199  }  }
200    
201    =head2 est_master
202    
203    Issue administrative commands to C<estmaster> process and receive response
204    as array of lines
205    
206      my $nodelist = $self->est_master( action => nodelist );
207    
208    =cut
209    
210    my $estmaster_actions = {
211            userdel => [ qw/name/ ],
212            nodelist => [],
213            nodeadd => [ qw/name label/ ],
214            nodedel => [ qw/name/ ],
215    };
216    
217    =head2 est_ua
218    
219    Make C<LWP::UserAgent> object with Super User priviledges
220    
221      my $ua = $self->est_ua( user => 'admin', passwd => 'admin' );
222    
223    =cut
224    
225    sub est_ua {
226            my $self = shift;
227    
228            return $self->{_master_ua} if ($self->{_master_ua});
229    
230            $self->{_master_ua} = LWP::UserAgent->new( ) || sub {
231                    my $log = $self->_get_logger;
232                    $log->logdie("can't create LWP::UserAgent: $!");
233            };
234    
235            $self->{_master_ua}->credentials('localhost:1978','Super User', $self->{user} => $self->{passwd});
236    
237            return $self->{_master_ua};
238    }
239    
240    sub est_master {
241            my $self = shift;
242            my $args = {@_};
243            my $log = $self->_get_logger;
244    
245            $log->debug(Dumper($args));
246    
247            my $action = $args->{action} || $log->logconfess("no action specified");
248    
249            $log->logdie("action '$action' isn't supported") unless ($estmaster_actions->{$action});
250    
251            my $url = $self->{masterurl} . '/master?action=' . $action;
252    
253            foreach my $arg (@{ $estmaster_actions->{$action} }) {
254                    $log->logdie("missing parametar $arg for action $action") unless ($args->{$arg});
255                    $url .= '&' . $arg . '=' . uri_escape( $args->{$arg} );
256            }
257    
258            $log->debug("calling $url");
259    
260            my $res = $self->est_ua()->get($url);
261    
262            if ($res->is_success) {
263                    #$log->debug( $res->content );
264                    return split(/\n/, $res->content) if wantarray;
265                    return $res->content;
266            } else {
267                    $log->warn("unable to call $url: " . $res->status_line);
268                    return;
269            }
270    
271    }
272    
273  =head1 AUTHOR  =head1 AUTHOR
274    
275  Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >>  Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >>
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