+ /**
+ * @param string $key
+ * Long name of the extension.
+ * Ex: 'org.example.myext'
+ *
+ * @return \CRM_Extension_Upgrader_Interface
+ */
+ public function getUpgrader(string $key) {
+ if (!array_key_exists($key, $this->upgraders)) {
+ $this->upgraders[$key] = NULL;
+
+ try {
+ $info = $this->keyToInfo($key);
+ }
+ catch (CRM_Extension_Exception_ParseException $e) {
+ CRM_Core_Session::setStatus(ts('Parse error in extension: %1', [
+ 1 => $e->getMessage(),
+ ]), '', 'error');
+ CRM_Core_Error::debug_log_message("Parse error in extension: " . $e->getMessage());
+ return NULL;
+ }
+
+ if (!empty($info->upgrader)) {
+ $class = $info->upgrader;
+ $u = new $class();
+ $u->init(['key' => $key]);
+ $this->upgraders[$key] = $u;
+ }
+ }
+ return $this->upgraders[$key];
+ }
+