/**
* validate parameters
* @param array<String> $param
* @return array<String>
*/
protected function validateParameters($param)
{
if (!isset($param['name']) || empty($param['name'])) {
throw new SystemException('a Parameter name cannot be empty');
}
if (isset($param['regex']) && !empty($param['regex'])) {
$regex = new Regex($param['regex']);
if (!$regex->isValid()) {
throw new SystemException('the regex of "' . $param['name'] . '" is invalid');
}
} else {
$param['regex'] = '';
}
if (isset($param['type'])) {
$param['type'] = strtoupper($param['type']);
if (!in_array($param['type'], $this->allowedTypes)) {
throw new SystemException('the type for "' . $param['name'] . '" is invalid');
}
} else {
throw new SystemException('the type for "' . $param['name'] . '" is invalid');
}
return $param;
}
