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package WebPAC::Output::EstraierNative; |
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|
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use warnings; |
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use strict; |
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|
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use base qw/WebPAC::Common/; |
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|
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use Estraier; |
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use Encode qw/from_to/; |
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use Data::Dumper; |
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use LWP; |
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use URI::Escape; |
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use List::Util qw/first/; |
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|
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$Estraier::DEBUG = 1; |
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|
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|
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=head1 NAME |
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|
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WebPAC::Output::EstraierNative - Create Hyper Estraier full text index using native bindings |
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|
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=head1 VERSION |
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|
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Version 0.1 |
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|
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=cut |
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|
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our $VERSION = '0.1'; |
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|
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=head1 SYNOPSIS |
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|
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Create full text index using Hyper Estraier index from data with |
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type C<search>. |
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|
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=head1 FUNCTIONS |
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|
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=head2 new |
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|
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Connect to Hyper Estraier index using HTTP |
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|
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my $est = new WebPAC::Output::Estraier( |
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path => 'casket/', |
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database => 'demo', |
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label => 'node label', |
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encoding => 'iso-8859-2', |
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clean => 1, |
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); |
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|
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Options are: |
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|
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=over 4 |
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|
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=item path |
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|
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full or relative path to Hyper Estraier database |
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|
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=item database |
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|
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name of database from which data comes |
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|
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=item label |
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|
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label for node (optional) |
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|
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=item encoding |
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|
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character encoding of C<data_structure> if it's differenet than C<ISO-8859-2> |
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(and it probably is). This encoding will be converted to C<UTF-8> for |
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Hyper Estraier. |
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|
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=back |
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|
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Name of database will be used to form URI of documents in index. |
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|
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=cut |
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|
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sub new { |
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my $class = shift; |
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my $self = {@_}; |
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bless($self, $class); |
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|
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my $log = $self->_get_logger; |
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|
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#$log->debug("self: ", sub { Dumper($self) }); |
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|
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foreach my $p (qw/path database/) { |
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$log->logdie("need $p") unless ($self->{$p}); |
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} |
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|
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$self->{encoding} ||= 'ISO-8859-2'; |
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|
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$self->{label} ||= "WebPAC $self->{database}"; |
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|
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my $path = 'casket'; |
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|
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my $db = new Database(); |
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unless($db->open($path, Database::DBWRITER | Database::DBCREAT)) { |
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$log->logdie("can't open $path: ", $db->err_msg($db->error()) ); |
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} |
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|
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$self->{db} = $db; |
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|
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$log->info("using ", $self->{clean} ? "new " : "", "index $self->{path} '$self->{label}' with encoding $self->{encoding}"); |
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|
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$self ? return $self : return undef; |
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} |
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|
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|
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=head2 add |
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|
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Adds one entry to database. |
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|
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$est->add( |
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id => 42, |
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ds => $ds, |
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type => 'display', |
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text => 'optional text from which snippet is created', |
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); |
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|
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This function will create entries in index using following URI format: |
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|
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C<file:///type/database%20name/000> |
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|
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Each tag in C<data_structure> with specified C<type> will create one |
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attribute and corresponding hidden text (used for search). |
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|
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=cut |
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|
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sub add { |
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my $self = shift; |
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|
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my $args = {@_}; |
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|
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my $log = $self->_get_logger; |
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|
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my $database = $self->{'database'} || $log->logconfess('no database in $self'); |
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$log->logconfess('need db in object') unless ($self->{'db'}); |
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|
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foreach my $p (qw/id ds type/) { |
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$log->logdie("need $p") unless ($args->{$p}); |
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} |
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|
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my $type = $args->{'type'}; |
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my $id = $args->{'id'}; |
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|
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my $uri = "file:///$type/$database/$id"; |
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$log->debug("creating $uri"); |
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|
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my $doc = new Document(); |
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$doc->add_attr('@uri', $self->convert($uri) ); |
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|
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# store type and database name |
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$doc->add_attr('_database', $database ); |
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$doc->add_attr('_type', $type ); |
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|
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$log->debug("ds = ", sub { Dumper($args->{'ds'}) } ); |
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|
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# filter all tags which have type defined |
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my @tags = grep { |
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ref($args->{'ds'}->{$_}) eq 'HASH' && defined( $args->{'ds'}->{$_}->{$type} ) |
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} keys %{ $args->{'ds'} }; |
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|
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$log->debug("tags = ", join(",", @tags)); |
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|
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return unless (@tags); |
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|
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foreach my $tag (@tags) { |
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|
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$log->debug("$tag :: $type == ",Dumper( $args->{'ds'}->{$tag}->{$type} ) ); |
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|
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my $vals = join(" ", @{ $args->{'ds'}->{$tag}->{$type} }); |
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|
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next if (! $vals); |
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|
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$vals = join(" ") if (ref($vals) eq 'ARRAY'); |
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|
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$vals = $self->convert( $vals ) or |
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$log->logdie("can't convert '$vals' to UTF-8"); |
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|
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$doc->add_attr( $tag, $vals ); |
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$doc->add_hidden_text( $vals ); |
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} |
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|
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my $text = $args->{'text'}; |
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if ( $text ) { |
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$text = $self->convert( $text ) or |
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$log->logdie("can't convert '$text' to UTF-8"); |
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$doc->add_text( $text ); |
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} |
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|
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$log->debug("adding ", sub { $doc->dump_draft } ); |
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$self->{'db'}->put_doc($doc, Database::PDCLEAN) || $log->warn("can't add document $uri with draft " . $doc->dump_draft . " to node " . $self->{path} . " status: " . $self->{db}->status()); |
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|
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return 1; |
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} |
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|
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=head2 add_link |
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|
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$est->add_link( |
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from => 'ps', |
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to => 'webpac2', |
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credit => 10000, |
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); |
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|
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=cut |
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|
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sub add_link { |
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my $self = shift; |
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|
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my $args = {@_}; |
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my $log = $self->_get_logger; |
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|
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$log->warn("add_link is not implemented"); |
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return; |
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|
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foreach my $p (qw/from to credit/) { |
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$log->logdie("need $p") unless ($args->{$p}); |
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} |
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|
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my $node = first { $_->{name} eq $args->{to} } $self->master( action => 'nodelist' ); |
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|
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if (! $node) { |
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$log->warn("can't find node $args->{to}, skipping link creaton"); |
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return; |
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} |
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|
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my $label = $node->{label}; |
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|
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if (! $label) { |
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$log->warn("can't find label for $args->{to}, skipping link creaton"); |
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return; |
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} |
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|
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$log->debug("using label $label for $args->{to}"); |
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|
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return $self->{db}->set_link( |
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$self->{masterurl} . '/node/' . $args->{to}, |
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$label, |
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$args->{credit}, |
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); |
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} |
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|
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|
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=head2 convert |
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|
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my $utf8_string = $self->convert('string in codepage'); |
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|
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=cut |
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|
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sub convert { |
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my $self = shift; |
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|
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my $text = shift || return; |
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from_to($text, $self->{encoding}, 'UTF-8'); |
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return $text; |
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} |
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|
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=head1 AUTHOR |
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|
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Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |
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|
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=head1 COPYRIGHT & LICENSE |
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|
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Copyright 2005 Dobrica Pavlinusic, All Rights Reserved. |
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|
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This program is free software; you can redistribute it and/or modify it |
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under the same terms as Perl itself. |
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|
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=cut |
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|
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1; # End of WebPAC::Output::Estraier |
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