public static function multiGetFromCiteServer($mode, $sets, $style = 'chicago-note-bibliography')
{
require_once "../include/RollingCurl.inc.php";
$t = microtime(true);
$setIDs = array();
$data = array();
$requestCallback = function ($response, $info) use($mode, &$setIDs, &$data) {
if ($info['http_code'] != 200) {
error_log("WARNING: HTTP {$info['http_code']} from citeserver {$mode} request: " . $response);
return;
}
$response = json_decode($response);
if (!$response) {
error_log("WARNING: Invalid response from citeserver {$mode} request: " . $response);
return;
}
$str = parse_url($info['url']);
$str = parse_str($str['query']);
if ($mode == 'citation') {
$data[$setIDs[$setID]] = Zotero_Cite::processCitationResponse($response);
} else {
if ($mode == "bib") {
$data[$setIDs[$setID]] = Zotero_Cite::processBibliographyResponse($response);
}
}
};
$rc = new RollingCurl($requestCallback);
// Number of simultaneous requests
$rc->window_size = 20;
foreach ($sets as $key => $items) {
$json = self::getJSONFromItems($items);
$server = Z_CONFIG::$CITATION_SERVERS[array_rand(Z_CONFIG::$CITATION_SERVERS)];
$url = "http://{$server}/?responseformat=json&style={$style}";
if ($mode == 'citation') {
$url .= "&citations=1&bibliography=0";
}
// Include array position in URL so that the callback can figure
// out what request this was
$url .= "&setID=" . $key;
// TODO: support multiple items per set, if necessary
if (!$items instanceof Zotero_Item) {
throw new Exception("items is not a Zotero_Item");
}
$setIDs[$key] = $items->libraryID . "/" . $items->key;
$request = new RollingCurlRequest($url);
$request->options = array(CURLOPT_POST => 1, CURLOPT_POSTFIELDS => $json, CURLOPT_HTTPHEADER => array("Expect:"), CURLOPT_CONNECTTIMEOUT => 1, CURLOPT_TIMEOUT => 4, CURLOPT_HEADER => 0, CURLOPT_RETURNTRANSFER => 1);
$rc->add($request);
}
$rc->execute();
error_log(sizeOf($sets) . " {$mode} requests in " . round(microtime(true) - $t, 3));
return $data;
}
