/**
* @inheritdoc
*/
public function getMany(array $keys, array $options = [])
{
$cached = $this->cache->getMany($keys, $options);
return array_map(function ($cached) {
if (is_array($cached) && count($cached) === 2) {
list($data, $exp) = $cached;
return new OffloadResult($data, true, $exp);
} else {
return OffloadResult::miss();
}
}, $cached);
}
/**
* Get the given key and refresh it if not found in cache or is stale.
*
* @param string $key The key to get/refresh.
* @param callable $repopulate A callable that returns fresh data for the key.
* @param array $options Offload options.
*
* @return OffloadResult The offload result.
*/
protected function refresh($key, callable $repopulate, $options = [])
{
// Check cache as long as there is a cache time set.
if ($options[self::OPTION_TTL_STALE] || $options[self::OPTION_TTL_FRESH]) {
$cache_options = empty($options[self::OPTION_CACHE_OPTIONS]) ? [] : $options[self::OPTION_CACHE_OPTIONS];
$result = $this->cache->get($key, $cache_options);
} else {
$result = OffloadResult::miss();
}
$from_cache = $result->isFromCache();
$stale = $result->isStale();
if (!$from_cache || $stale && !$options[self::OPTION_BACKGROUND]) {
// If there is no data in cache or the data is stale and background fetch is turned off,
// run the repopulate immediately and cache the results.
$data = $this->run($key, $repopulate, $options)->wait();
$result = new OffloadResult($data, false, 0);
} elseif ($stale) {
// If there is data in cache and the data is stale, queue a background repopulate.
$this->queue($key, $repopulate, $options);
}
return $result;
}
