function getByISBN($isbn)
{
if (!Isbn::isValid($isbn)) {
throw new \Exception('invalid isbn');
}
$isbn = str_replace(' ', '', $isbn);
$isbn = str_replace('-', '', $isbn);
if ($this->use_cache) {
$temp = TempStore::getInstance();
$key = 'IsbnDbClient/isbn/' . $isbn;
$res = $temp->get($key);
if ($res) {
return unserialize($res);
}
}
$url = 'http://isbndb.com/api/books.xml' . '?access_key=' . $this->api_key . '&index1=isbn' . '&value1=' . $isbn;
$http = new HttpClient($url);
$data = $http->getBody();
$xml = simplexml_load_string($data);
$attrs = $xml->BookList;
if ($attrs['total_results'] == 0) {
return false;
}
$d = $xml->BookList->BookData;
$attrs = $d->attributes();
if (!$attrs) {
throw new \Exception('no attrs');
}
$book = new BookResource();
$book->title = strval($d->Title);
$book->authors = strval($d->AuthorsText);
$book->publisher = strval($d->PublisherText);
$book->isbn10 = strval($attrs['isbn']);
$book->isbn13 = strval($attrs['isbn13']);
if ($this->use_cache) {
$temp->set($key, serialize($book), '24h');
}
return $book;
}
