/[Search-Estraier]/trunk/lib/Search/Estraier.pm
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revision 65 by dpavlin, Sat Jan 7 23:48:16 2006 UTC revision 78 by dpavlin, Mon Jan 16 21:42:09 2006 UTC
# Line 4  use 5.008; Line 4  use 5.008;
4  use strict;  use strict;
5  use warnings;  use warnings;
6    
7  our $VERSION = '0.02';  our $VERSION = '0.04_1';
8    
9  =head1 NAME  =head1 NAME
10    
# Line 12  Search::Estraier - pure perl module to u Line 12  Search::Estraier - pure perl module to u
12    
13  =head1 SYNOPSIS  =head1 SYNOPSIS
14    
15    use Search::Estraier;  =head2 Simple indexer
16    my $est = new Search::Estraier();  
17            use Search::Estraier;
18    
19            # create and configure node
20            my $node = new Search::Estraier::Node;
21            $node->set_url("http://localhost:1978/node/test");
22            $node->set_auth("admin","admin");
23    
24            # create document
25            my $doc = new Search::Estraier::Document;
26    
27            # add attributes
28            $doc->add_attr('@uri', "http://estraier.gov/example.txt");
29            $doc->add_attr('@title', "Over the Rainbow");
30    
31            # add body text to document
32            $doc->add_text("Somewhere over the rainbow.  Way up high.");
33            $doc->add_text("There's a land that I heard of once in a lullaby.");
34    
35            die "error: ", $node->status,"\n" unless ($node->put_doc($doc));
36    
37    =head2 Simple searcher
38    
39            use Search::Estraier;
40    
41            # create and configure node
42            my $node = new Search::Estraier::Node;
43            $node->set_url("http://localhost:1978/node/test");
44            $node->set_auth("admin","admin");
45    
46            # create condition
47            my $cond = new Search::Estraier::Condition;
48    
49            # set search phrase
50            $cond->set_phrase("rainbow AND lullaby");
51    
52            my $nres = $node->search($cond, 0);
53            if (defined($nres)) {
54                    # for each document in results
55                    for my $i ( 0 ... $nres->doc_num - 1 ) {
56                            # get result document
57                            my $rdoc = $nres->get_doc($i);
58                            # display attribte
59                            print "URI: ", $rdoc->attr('@uri'),"\n";
60                            print "Title: ", $rdoc->attr('@title'),"\n";
61                            print $rdoc->snippet,"\n";
62                    }
63            } else {
64                    die "error: ", $node->status,"\n";
65            }
66    
67  =head1 DESCRIPTION  =head1 DESCRIPTION
68    
# Line 25  or Hyper Estraier development files on t Line 74  or Hyper Estraier development files on t
74  It is implemented as multiple packages which closly resamble Ruby  It is implemented as multiple packages which closly resamble Ruby
75  implementation. It also includes methods to manage nodes.  implementation. It also includes methods to manage nodes.
76    
77    There are few examples in C<scripts> directory of this distribution.
78    
79  =cut  =cut
80    
81  =head1 Inheritable common methods  =head1 Inheritable common methods
# Line 703  or optionally with C<url> as parametar Line 754  or optionally with C<url> as parametar
754    
755    my $node = new Search::HyperEstraier::Node( 'http://localhost:1978/node/test' );    my $node = new Search::HyperEstraier::Node( 'http://localhost:1978/node/test' );
756    
757    or in more verbose form
758    
759      my $node = new Search::HyperEstraier::Node(
760            url => 'http://localhost:1978/node/test',
761            debug => 1,
762            croak_on_error => 1
763      );
764    
765    with following arguments:
766    
767    =over 4
768    
769    =item url
770    
771    URL to node
772    
773    =item debug
774    
775    dumps a B<lot> of debugging output
776    
777    =item croak_on_error
778    
779    very helpful during development. It will croak on all errors instead of
780    silently returning C<-1> (which is convention of Hyper Estraier API in other
781    languages).
782    
783    =back
784    
785  =cut  =cut
786    
787  sub new {  sub new {
# Line 725  sub new { Line 804  sub new {
804          } else {          } else {
805                  my $args = {@_};                  my $args = {@_};
806    
807                  $self->{debug} = $args->{debug};                  %$self = ( %$self, @_ );
808    
809                  warn "## Node debug on\n" if ($self->{debug});                  warn "## Node debug on\n" if ($self->{debug});
810          }          }
811    
# Line 1325  sub cond_to_query { Line 1405  sub cond_to_query {
1405    
1406  =head2 shuttle_url  =head2 shuttle_url
1407    
1408  This is method which uses C<IO::Socket::INET> to communicate with Hyper Estraier node  This is method which uses C<LWP::UserAgent> to communicate with Hyper Estraier node
1409  master.  master.
1410    
1411    my $rv = shuttle_url( $url, $content_type, $req_body, \$resbody );    my $rv = shuttle_url( $url, $content_type, $req_body, \$resbody );
# Line 1367  sub shuttle_url { Line 1447  sub shuttle_url {
1447    
1448          $req->headers->header( 'Host' => $url->host . ":" . $url->port );          $req->headers->header( 'Host' => $url->host . ":" . $url->port );
1449          $req->headers->header( 'Connection', 'close' );          $req->headers->header( 'Connection', 'close' );
1450          $req->headers->header( 'Authorization', 'Basic ' . $self->{auth} );          $req->headers->header( 'Authorization', 'Basic ' . $self->{auth} ) if ($self->{auth});
1451          $req->content_type( $content_type );          $req->content_type( $content_type );
1452    
1453          warn $req->headers->as_string,"\n" if ($self->{debug});          warn $req->headers->as_string,"\n" if ($self->{debug});
# Line 1381  sub shuttle_url { Line 1461  sub shuttle_url {
1461    
1462          warn "## response status: ",$res->status_line,"\n" if ($self->{debug});          warn "## response status: ",$res->status_line,"\n" if ($self->{debug});
1463    
         return -1 if (! $res->is_success);  
   
1464          ($self->{status}, $self->{status_message}) = split(/\s+/, $res->status_line, 2);          ($self->{status}, $self->{status_message}) = split(/\s+/, $res->status_line, 2);
1465    
1466            if (! $res->is_success) {
1467                    if ($self->{croak_on_error}) {
1468                            croak("can't get $url: ",$res->status_line);
1469                    } else {
1470                            return -1;
1471                    }
1472            }
1473    
1474          $$resbody .= $res->content;          $$resbody .= $res->content;
1475    
1476          warn "## response body:\n$$resbody\n" if ($resbody && $self->{debug});          warn "## response body:\n$$resbody\n" if ($resbody && $self->{debug});
# Line 1484  sub set_link { Line 1570  sub set_link {
1570          $reqbody .= '&credit=' . $credit if ($credit > 0);          $reqbody .= '&credit=' . $credit if ($credit > 0);
1571    
1572          $self->shuttle_url( $self->{url} . '/_set_link',          $self->shuttle_url( $self->{url} . '/_set_link',
1573                  'text/plain',                  'application/x-www-form-urlencoded',
1574                  $reqbody,                  $reqbody,
1575                  undef                  undef
1576          ) == 200;          ) == 200;
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