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dpavlin |
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package WebPAC::HyperEstraier; |
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use warnings; |
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use strict; |
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use Carp; |
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use HyperEstraier; |
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use Log::Log4perl qw(get_logger :levels); |
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use Text::Iconv; |
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=head1 NAME |
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WebPAC::HyperEstraier - create HyperEstraier index |
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=head1 DESCRIPTION |
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This module will create HyperEstraier index. Planned features include |
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updating of index, but there are none yet. |
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=head1 METHODS |
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=head2 new |
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Create new index object |
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my $index = new WebPAC::HyperEstraier( |
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index_path => '/path/to/casket', |
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log => 'log4perl.conf', |
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); |
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C<index_path> is path to location where HyperEstraier index should be created. |
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C<log> is optional parametar which specify filename of L<Log::Log4Perl> |
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config file. Default is C<log.conf>. |
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This function will trap C<INT> and C<QUIT> signals to sync index to disk before |
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exit. |
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=cut |
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my $db; |
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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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my $index_path = $self->{'index_path'} || confess "need index_path argument!"; |
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my $log_file = $self->{'log'} || "log.conf"; |
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Log::Log4perl->init($log_file); |
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my $log = $self->_get_logger(); |
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carp "database allready opened" if ($db); |
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$db = HyperEstraier::Database->new(); |
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my $flags = $HyperEstraier::Database::DBWRITER; |
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$flags |= $HyperEstraier::Database::DBCREAT if (! -e $index_path); |
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$log->debug("HyperEstraier::open($index_path, $flags)"); |
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$db->open($index_path, $flags); |
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$log->logdie("Can't open index '$index_path' database problem?") unless defined($db); |
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my $signal = sub { |
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my($sig) = @_; |
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warn "\nCaught a SIG$sig--syncing database and shutting down\n"; |
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$db->sync(); |
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exit(0); |
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}; |
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$SIG{'INT'} = $signal; |
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$SIG{'QUIT'} = $signal; |
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$self->{'iconv'} = new Text::Iconv('iso-8859-2', 'utf-8') || croak "can't create iconv"; |
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return $self; |
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} |
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=head2 insert |
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Insert data into index |
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$index->insert( |
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index_name => 'index_name', |
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path => 'path', |
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headline => 'headline text', |
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words => 'words to insert into index' |
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); |
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=cut |
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sub insert { |
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my $self = shift; |
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my $args = {@_}; |
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my $log = $self->_get_logger(); |
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confess "need index name" unless ($args->{'index_name'}); |
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confess "need path" unless ($args->{'path'}); |
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if (! $args->{'headline'}) { |
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carp "no headline for ",$args->{'path'}," ?"; |
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$args->{'headline'} = "no headline: ".$args->{'path'}; |
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} |
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if (! defined($args->{'words'})) { |
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$log->warn("no words to insert for headline ",$args->{'headline'}); |
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return; |
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} |
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my $words = lc($args->{'words'}); |
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# chop leading and trailing spaces |
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$words =~ s/^\s+//; |
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$words =~ s/\s+$//; |
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my $url = 'file:///' . $args->{'path'}; |
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my $doc = HyperEstraier::Document->new; |
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my $iconv = $self->{'iconv'} || croak "no iconv?"; |
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$doc->add_attr('@uri', "file:///" . $args->{'path'}); |
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$doc->add_attr('@title', $iconv->convert($args->{'headline'}) ); |
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$doc->add_attr('@size', length($words)); |
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$doc->add_attr('@mtime', time()); |
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$doc->add_attr('index_name', $iconv->convert( $args->{'index_name'}) ); |
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$doc->add_text( $iconv->convert($words) ); |
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$log->debug("draft:\n", $doc->dump_draft); |
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$db->put_doc($doc, $HyperEstraier::Database::PDCLEAN); |
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} |
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=head2 close |
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This method will close indexes and sync to disk. |
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$index->close; |
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=cut |
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sub close { |
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my $self = shift; |
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my $log = $self->_get_logger(); |
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$log->debug("sync database"); |
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$db->sync(); |
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$log->debug("optimize database"); |
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$db->optimize(0); |
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} |
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# |
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=head1 INTERNAL METHODS |
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You shouldn't call this methods directly. |
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=head2 _get_logger |
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Get C<Log::Log4perl> object with a twist: domains are defined for each |
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method |
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my $log = $webpac->_get_logger(); |
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=cut |
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sub _get_logger { |
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my $self = shift; |
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my $name = (caller(1))[3] || caller; |
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return get_logger($name); |
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} |
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