/**
* Generates a new guid by calling out to the guid-generator micro-service, or
* if it can't be hit, generates one on it's own
*
* @return A new v4 guid
*/
function newGuid()
{
$url = getEnv('GUIDURL');
if ($url == "") {
$url = "http://tmt-guid.byu.edu";
}
// Start building curl options
$curl_options = array();
$curl_options[CURLOPT_URL] = $url . '/guid';
$curl_options[CURLOPT_RETURNTRANSFER] = true;
// Create handle and set options
$curl_handle = curl_init();
$success = curl_setopt_array($curl_handle, $curl_options);
// Check failure to properly prepare curl handle
if (!$success) {
$generator = new \Icecave\Druid\UuidVersion4Generator();
$uuid = $generator->generate()->string();
curl_close($curl_handle);
return $uuid;
}
// Execute request
$response = curl_exec($curl_handle);
// Check for errors
$http_code = curl_getinfo($curl_handle, CURLINFO_HTTP_CODE);
$err_num = curl_errno($curl_handle);
// Failed to hit micro-service
if ($http_code != 200 || $err_num != 0) {
$generator = new \Icecave\Druid\UuidVersion4Generator();
$uuid = $generator->generate()->string();
curl_close($curl_handle);
return $uuid;
}
// Parse response and return
$response = json_decode($response, false);
$guid = $response->data;
curl_close($curl_handle);
return $guid;
}
/**
* Generates a new guid on the TMT side rather than getting
* one from a micro-service.
*
* @return A new v4 guid
*/
public function newGuidLocal()
{
$generator = new \Icecave\Druid\UuidVersion4Generator();
$uuid = $generator->generate()->string();
return $uuid;
}
