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package WebPAC::Output::SWISH; |
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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 lib 'lib'; |
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|
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use base qw/WebPAC::Common Class::Accessor/; |
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__PACKAGE__->mk_accessors(qw( |
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database |
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input |
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type |
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|
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index_path |
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)); |
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|
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use File::Path qw/mkpath/; |
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use Data::Dump qw/dump/; |
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use YAML; |
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use JSON; |
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|
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|
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=head1 NAME |
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|
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WebPAC::Output::SWISH - Create swish-e full text index |
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|
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=cut |
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|
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our $VERSION = '0.01'; |
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|
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=head1 SYNOPSIS |
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|
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Create full text index using swish-e indexer 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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my $out = new WebPAC::Output::SWISH({ |
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database => 'demo', |
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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 database |
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|
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name of database from which data comes |
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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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our $dir = 'var/swish'; |
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|
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sub init { |
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my $self = shift; |
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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->logdie("need database"); |
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|
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mkpath $dir if ! -e $dir; |
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|
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my $path = "$dir/$database.conf"; |
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|
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open(my $conf, '>', $path) || die "can't open $path: $!"; |
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|
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print $conf <<"DEFAULT_SWISH_CONF"; |
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# swish-e config file for $database |
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|
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IndexDir stdin |
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|
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# input file definition |
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DefaultContents XML* |
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|
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# indexed metatags |
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MetaNames xml swishdocpath |
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|
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|
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#XMLClassAttributes type |
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UndefinedMetaTags auto |
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UndefinedXMLAttributes auto |
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|
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IndexFile $dir/$database |
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|
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# Croatian ISO-8859-2 characters to unaccented equivalents |
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#TranslateCharacters ¹©ðÐèÈæƾ® ssddcccczz |
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|
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# store data into index |
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PropertyNames data |
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|
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# disable output |
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ParserWarnLevel 0 |
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IndexReport 1 |
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|
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DEFAULT_SWISH_CONF |
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|
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close($conf) || die "can't write config $path: $!"; |
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|
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$self->index_path( "$dir/$database" ); |
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|
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my $swish = "swish-e -S prog -c $path"; |
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open( $self->{_swish_fh}, '|-', $swish ) || die "can't open pipe to $swish: $!"; |
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|
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$log->info( "created $path ", -s $path, " bytes for ", $self->index_path ); |
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|
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$self->{stats} = {}; |
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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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=head2 |
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|
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my $path = $out->index_path; |
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|
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=head2 add |
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|
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$out->add( 42, $ds ); |
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|
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=cut |
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|
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my %escape = ('<'=>'<', '>'=>'>', '&'=>'&', '"'=>'"'); |
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my $escape_re = join '|' => keys %escape; |
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|
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sub add { |
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my ($self,$id,$ds) = @_; |
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|
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die "need input" unless $self->input; |
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|
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my $log = $self->_get_logger; |
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$log->debug("id: $id ds = ",sub { dump($ds) }); |
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|
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my $database = $self->database || $log->logconfess('no database in $self'); |
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|
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my $uri = $self->database . '/' . $self->input . "/$id"; |
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$log->debug("creating $uri"); |
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|
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# filter all tags which have type defined |
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my $type = $self->type || 'search'; |
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my @tags = grep { |
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ref($ds->{$_}) eq 'HASH' && defined( $ds->{$_}->{$type} ) |
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} keys %{ $ds }; |
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|
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$log->debug("tags = ", join(",", @tags)); |
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|
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return unless (@tags); |
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|
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my $xml = qq{<all>}; |
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my $data; |
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|
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foreach ( 'database', 'input' ) { |
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$xml .= "<$_>" . $self->$_ . "</$_>"; |
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$data->{$_} = $self->$_; |
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} |
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|
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foreach my $tag (@tags) { |
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|
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my $r = ref $ds->{$tag}->{$type}; |
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die "tag $tag type $type not ARRAY but '$r' = ",dump( $ds->{$tag}->{$type} ) unless $r eq 'ARRAY'; |
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|
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my $vals = join(" ", @{ $ds->{$tag}->{$type} }); |
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|
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next if ! $vals; |
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|
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$vals =~ s/($escape_re)/$escape{$1}/gs; |
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# BW & EW are our markers for tag boundry |
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$xml .= qq{<$tag><![CDATA[BW $vals EW]]></$tag>}; |
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|
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$self->{stats}->{attr}->{$tag}++; |
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$self->{stats}->{input}->{ $self->input }->{$tag}++; |
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|
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$data->{$tag} = $vals; |
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} |
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|
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# serialize to JSON instead of YAML because we will loose whitespace |
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$data = to_json($data); |
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$xml .= qq{<data><![CDATA[$data]]></data>}; |
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|
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$xml .= qq{</all>\n}; |
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|
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my $len = length($xml); |
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|
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my $fh = $self->{_swish_fh} || die "_swish_fh missing"; |
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|
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print $fh "Path-Name: $uri\nContent-Length: $len\nDocument-Type: XML\n\n$xml" or |
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die "can't add $uri: $@\n$xml"; |
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|
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$log->debug( $xml ); |
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|
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return 1; |
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} |
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|
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=head2 finish |
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|
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Dump attributes used on disk |
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|
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=cut |
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|
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sub finish { |
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my $self = shift; |
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my $log = $self->_get_logger(); |
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|
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my $path = $dir . '/' . $self->{database} . '.yaml'; |
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YAML::DumpFile( $path, $self->{stats} ); |
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$log->info("created $path ", -s $path, " bytes"); |
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$log->debug( dump( $self->{stats} ) ); |
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|
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close( $self->{_swish_fh} ) || die "can't close index ", $self->index_path, ": $!"; |
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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 2004-2009 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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