2 # Copyright (C) 2007 LibLime
3 # Joshua Ferraro <jmf@liblime.com>
5 # This file is part of Koha.
7 # Koha is free software; you can redistribute it and/or modify it under the
8 # terms of the GNU General Public License as published by the Free Software
9 # Foundation; either version 2 of the License, or (at your option) any later
12 # Koha is distributed in the hope that it will be useful, but WITHOUT ANY
13 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
14 # A PARTICULAR PURPOSE. See the GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License along
17 # with Koha; if not, write to the Free Software Foundation, Inc.,
18 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24 use C4::External::Syndetics qw(get_syndetics_editions);
26 use HTTP::Request::Common;
29 #use warnings; FIXME - Bug 2505
30 use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
38 &get_biblionumber_from_isbn
42 sub get_biblionumber_from_isbn {
46 my $dbh=C4::Context->dbh;
47 my $query = "SELECT biblionumber FROM biblioitems WHERE isbn LIKE ? LIMIT 10";
48 my $sth = $dbh->prepare($query);
50 return $sth->fetchall_arrayref({});
54 C4::XISBN - Functions for retrieving XISBN content in Koha
58 This module provides facilities for retrieving ThingISBN and XISBN content in Koha
62 sub _get_biblio_from_xisbn {
65 my $dbh = C4::Context->dbh;
66 my $query = "SELECT biblionumber FROM biblioitems WHERE isbn LIKE ?";
67 my $sth = $dbh->prepare($query);
68 $sth->execute($xisbn);
69 my $xbib_data = $sth->fetchrow_hashref();
71 if ($xbib_data->{biblionumber}) {
72 $xbiblio = GetBiblioData($xbib_data->{biblionumber});
73 $xbiblio->{normalized_isbn} = GetNormalizedISBN($xbiblio->{isbn});
78 =head1 get_xisbns($isbn);
80 =head2 $isbn is an ISBN string
86 my ($response,$thing_response,$xisbn_response,$syndetics_response);
88 if ( C4::Context->preference('ThingISBN') ) {
89 my $url = "http://www.librarything.com/api/thingISBN/".$isbn;
90 $thing_response = _get_url($url,'thingisbn');
93 if ( C4::Context->preference("SyndeticsEnabled") && C4::Context->preference("SyndeticsEditions") ) {
94 my $syndetics_preresponse = &get_syndetics_editions($isbn);
95 my @syndetics_response;
96 for my $response (@$syndetics_preresponse) {
97 push @syndetics_response, {content => $response->{a}};
99 $syndetics_response = {isbn => \@syndetics_response};
103 if ( C4::Context->preference('XISBN') ) {
104 my $affiliate_id=C4::Context->preference('OCLCAffiliateID');
105 my $limit = C4::Context->preference('XISBNDailyLimit') || 999;
106 my $reached_limit = _service_throttle('xisbn',$limit);
107 my $url = "http://xisbn.worldcat.org/webservices/xid/isbn/".$isbn."?method=getEditions&format=xml&fl=form,year,lang,ed";
108 $url.="&ai=".$affiliate_id if $affiliate_id;
109 unless ($reached_limit) {
110 $xisbn_response = _get_url($url,'xisbn');
114 $response->{isbn} = [ @{ $xisbn_response->{isbn} or [] }, @{ $syndetics_response->{isbn} or [] }, @{ $thing_response->{isbn} or [] } ];
116 my $unique_xisbns; # a hashref
118 # loop through each ISBN and scope to the local collection
119 for my $response_data( @{ $response->{ isbn } } ) {
120 next if $response_data->{'content'} eq $isbn;
121 next if $isbn eq $response_data;
122 next if $unique_xisbns->{ $response_data->{content} };
123 $unique_xisbns->{ $response_data->{content} }++;
124 my $xbiblio= _get_biblio_from_xisbn($response_data->{content});
125 push @xisbns, $xbiblio if $xbiblio;
131 my ($url,$service_type) = @_;
132 my $ua = LWP::UserAgent->new(
136 my $response = $ua->get($url);
137 if ($response->is_success) {
138 warn "WARNING could not retrieve $service_type $url" unless $response;
140 my $xmlsimple = XML::Simple->new();
141 my $content = $xmlsimple->XMLin(
143 ForceArray => [ qw(isbn) ],
149 warn "WARNING: URL Request Failed " . $response->status_line . "\n";
155 # Throttle services to the specified amount
156 sub _service_throttle {
157 my ($service_type,$daily_limit) = @_;
158 my $dbh = C4::Context->dbh;
159 my $sth = $dbh->prepare("SELECT service_count FROM services_throttle WHERE service_type=?");
160 $sth->execute($service_type);
163 while (my $counter = $sth->fetchrow_hashref()) {
164 $count = $counter->{service_count} if $counter->{service_count};
167 # we're over the limit
168 return 1 if $count >= $daily_limit;
172 $sth = $dbh->do("UPDATE services_throttle SET service_count=$count WHERE service_type='xisbn'");
185 Joshua Ferraro <jmf@liblime.com>