/**
* Constructor
*
* @param Xerxes_Record $record record
* @param Config $config local config
*/
public function __construct(Record $record, Config $config)
{
$this->xerxes_record = $record;
$this->registry = Registry::getInstance();
$this->config = $config;
// link resolver stuff
$this->link_resolver = $this->config->getConfig("LINK_RESOLVER_ADDRESS", false, $this->registry->getConfig("LINK_RESOLVER_ADDRESS", false));
$this->sid = $this->config->getConfig("APPLICATION_SID", false, $this->registry->getConfig("APPLICATION_SID", false, "calstate.edu:xerxes"));
if ($this->link_resolver != null) {
$this->url_open = $record->getOpenURL($this->link_resolver, $this->sid);
}
$this->openurl_kev_co = $record->getOpenURL(null, $this->sid);
// holdings
$this->holdings = new Holdings();
if ($record->hasPhysicalHoldings() == false) {
$this->holdings->checked = true;
}
// proxy links?
$proxy_server = $this->registry->getConfig('PROXY_SERVER', false);
$should_proxy_links = $this->config->getConfig('SHOULD_PROXY', false, false);
if ($should_proxy_links) {
foreach ($this->xerxes_record->getLinks() as $link) {
$link->addProxyPrefix($proxy_server);
}
}
}
/**
* Get an OpenURL 1.0 formatted URL
*
* @param string $strResolver base url of the link resolver
* @param string $strReferer referrer (unique identifier)
* @return string
*/
public function getOpenURL($resolver, $referer = null, $para_delimiter = '&')
{
if ($this->config()->getConfig('direct_linking', false, false)) {
return $this->direct_link;
} else {
return parent::getOpenURL($resolver, $referer, $para_delimiter);
}
}
/**
* Constructor
*
* @param Xerxes_Record $record record
* @param Config $config local config
*/
public function __construct(Record $record, Config $config)
{
$this->xerxes_record = $record;
$this->registry = Registry::getInstance();
$this->config = $config;
// link resolver stuff
$this->link_resolver = $this->config->getConfig("LINK_RESOLVER_ADDRESS", false, $this->registry->getConfig("LINK_RESOLVER_ADDRESS", false));
$this->sid = $this->registry->getConfig("APPLICATION_SID", false, "calstate.edu:xerxes");
if ($this->link_resolver != null) {
$this->url_open = $record->getOpenURL($this->link_resolver, $this->sid);
}
$this->openurl_kev_co = $record->getOpenURL(null, $this->sid);
// holdings
$this->holdings = new Holdings();
if ($record->hasPhysicalHoldings() == false) {
$this->holdings->checked = true;
}
}
public function getRecommendations(Xerxes\Record $xerxes_record, $min_relevance = 0, $max_records = 10)
{
$bx_records = array();
// now get the open url
$open_url = $xerxes_record->getOpenURL(null, $this->sid);
$open_url = str_replace('genre=unknown', 'genre=article', $open_url);
// send it to bx service
$url = $this->url . "/recommender/openurl?token=" . $this->token . "&{$open_url}" . "&res_dat=source=global&threshold={$min_relevance}&maxRecords={$max_records}";
try {
$client = Factory::getHttpClient();
$client->setUri($url);
$client->setConfig(array('timeout' => 4));
$xml = $client->send()->getBody();
if ($xml == "") {
throw new \Exception("No response from bx service");
}
} catch (\Exception $e) {
// just issue the exception as a warning
trigger_error("Could not get result from bX service: " . $e->getTraceAsString(), E_USER_WARNING);
return $bx_records;
}
// header("Content-type: text/xml"); echo $xml; exit;
$doc = new \DOMDocument();
$doc->recover = true;
$doc->loadXML($xml);
$xpath = new \DOMXPath($doc);
$xpath->registerNamespace("ctx", "info:ofi/fmt:xml:xsd:ctx");
$records = $xpath->query("//ctx:context-object");
foreach ($records as $record) {
$bx_record = new Record();
$bx_record->loadXML($record);
array_push($bx_records, $bx_record);
}
if (count($bx_records) > 0) {
// first one is the record we want to find recommendations for
// so skip it; any others are actual recommendations
array_shift($bx_records);
}
return $bx_records;
}
