private function getId($cacheId, $key)
{
$id = $this->getLockKey($cacheId, $key);
if (!is_int($id) || $id > PHP_INT_MAX || $id < ~PHP_INT_MAX) {
$id = \Cachet\Helper::hashToInt32($id);
}
return $id;
}
private function selectBackend($cacheId, $key)
{
$hashValue = "{$cacheId}/{$key}";
$backendId = abs(\Cachet\Helper::hashToInt32($hashValue) % $this->backendCount);
return $this->backends[$backendId];
}
private function createSafeKey($key)
{
$safeKey = substr(preg_replace("/[^a-z\\d_\\-]/", "", strtolower($key)), 0, 50);
// crc32 is platform dependent? not that it should matter, but it makes testing
// quite tricky.
$hashedKey = base_convert(\Cachet\Helper::hashToInt32($key), 10, 36) . ($safeKey ? "-{$safeKey}" : '');
return $hashedKey;
}
