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# ex:ts=8 |
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package WWW::Scraper::ISBN::TWBooks_Driver; |
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use strict; |
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use warnings; |
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use vars qw($VERSION @ISA); |
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$VERSION = '0.02'; |
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#-------------------------------------------------------------------------- |
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=head1 NAME |
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WWW::Scraper::ISBN::TWBooks_Driver - Search driver for TWBooks' online catalog. |
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=head1 SYNOPSIS |
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See parent class documentation (L) |
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=head1 DESCRIPTION |
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Searches for book information from the TWBooks' online catalog. |
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=cut |
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#-------------------------------------------------------------------------- |
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########################################################################### |
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#Library Modules # |
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########################################################################### |
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use WWW::Scraper::ISBN::Driver; |
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use WWW::Mechanize; |
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use Template::Extract; |
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use Text::Iconv; |
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########################################################################### |
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#Constants # |
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########################################################################### |
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use constant QUERY => 'http://search.books.com.tw/exep/prod_search.php?cat=001&key=%s'; |
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#-------------------------------------------------------------------------- |
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########################################################################### |
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#Inheritence # |
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########################################################################### |
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@ISA = qw(WWW::Scraper::ISBN::Driver); |
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########################################################################### |
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#Interface Functions # |
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########################################################################### |
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=head1 METHODS |
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=over 4 |
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=item C |
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Creates a query string, then passes the appropriate form fields to the Books |
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server. |
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The returned page should be the correct catalog page for that ISBN. If not the |
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function returns zero and allows the next driver in the chain to have a go. If |
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a valid page is returned, the following fields are returned via the book hash: |
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isbn |
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title |
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author |
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pages |
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book_link |
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image_link |
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pubdate |
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publisher |
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price_list |
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price_sell |
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The book_link and image_link refer back to the Books website. |
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=back |
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=cut |
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86
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sub search { |
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1
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1
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1499
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my $self = shift; |
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1
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3
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my $isbn = shift; |
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$self->found(0); |
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$self->book(undef); |
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1
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14
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my $url = sprintf(QUERY, $isbn); |
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1
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9
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my $mechanize = WWW::Mechanize->new(); |
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1
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39947
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$mechanize->get( $url ); |
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1
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1380824
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return undef unless($mechanize->success()); |
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# The Search Results page |
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1
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my $template = <
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| [% ... %] |
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image=[% image_link %]&width=[% ... %] |
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103
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[% title %][% ... %] |
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[% pubdate %][% ... %] |
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[% price_list %][% ... %] |
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[% price_sell %][% ... %] |
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/ [% pages %] / [% ... %] |
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ISBN[% ... %][% isbn %] |
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END |
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114
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1
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13
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my $extract = Template::Extract->new; |
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1
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102753
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my $data = $extract->extract($template, $mechanize->content()); |
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1
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16872
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return $self->handler("Could not extract data from TWBooks result page.") |
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unless(defined $data); |
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0
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$data->{image_link} =~ m/(\d+).jpg/; |
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0
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my $tmp = $1; |
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$data->{pages} =~ s/(\d+).*/$1/; |
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0
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my $conv = Text::Iconv->new("utf-8", "big5"); |
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0
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my $bk = { |
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'isbn' => $data->{isbn}, |
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'title' => $conv->convert($data->{title}), |
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'author' => $conv->convert($data->{author}), |
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'pages' => $data->{pages}, |
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'book_link' => "http://www.books.com.tw/exep/prod/booksfile.php?item=$tmp", |
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'image_link' => $data->{image_link}, |
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'pubdate' => $conv->convert($data->{pubdate}), |
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'publisher' => $conv->convert($data->{publisher}), |
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'price_list' => $data->{price_list}, |
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'price_sell' => $data->{price_sell}, |
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}; |
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0
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$self->book($bk); |
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$self->found(1); |
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return $self->book; |
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} |
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1; |
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__END__ |
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