/**
* {@inheritdoc}
*/
public function readMultiple(array $names)
{
$data_to_return = array();
$cache_keys_map = $this->getCacheKeys($names);
$cache_keys = array_values($cache_keys_map);
$cached_list = $this->cache->getMultiple($cache_keys);
if (!empty($cache_keys)) {
// $cache_keys_map contains the full $name => $cache_key map, while
// $cache_keys contains just the $cache_key values that weren't found in
// the cache.
// @see \Drupal\Core\Cache\CacheBackendInterface::getMultiple()
$names_to_get = array_keys(array_intersect($cache_keys_map, $cache_keys));
$list = $this->storage->readMultiple($names_to_get);
// Cache configuration objects that were loaded from the storage, cache
// missing configuration objects as an explicit FALSE.
$items = array();
foreach ($names_to_get as $name) {
$data = isset($list[$name]) ? $list[$name] : FALSE;
$data_to_return[$name] = $data;
$items[$cache_keys_map[$name]] = array('data' => $data);
}
$this->cache->setMultiple($items);
}
// Add the configuration objects from the cache to the list.
$cache_keys_inverse_map = array_flip($cache_keys_map);
foreach ($cached_list as $cache_key => $cache) {
$name = $cache_keys_inverse_map[$cache_key];
$data_to_return[$name] = $cache->data;
}
// Ensure that only existing configuration objects are returned, filter out
// cached information about missing objects.
return array_filter($data_to_return);
}
/**
* {@inheritdoc}
*/
public function readMultiple(array $names)
{
$list = array();
// The names array is passed by reference and will only contain the names of
// config object not found after the method call.
// @see \Drupal\Core\Cache\CacheBackendInterface::getMultiple()
$cached_list = $this->cache->getMultiple($names);
if (!empty($names)) {
$list = $this->storage->readMultiple($names);
// Cache configuration objects that were loaded from the storage, cache
// missing configuration objects as an explicit FALSE.
$items = array();
foreach ($names as $name) {
$items[$name] = array('data' => isset($list[$name]) ? $list[$name] : FALSE);
}
$this->cache->setMultiple($items);
}
// Add the configuration objects from the cache to the list.
foreach ($cached_list as $name => $cache) {
$list[$name] = $cache->data;
}
// Ensure that only existing configuration objects are returned, filter out
// cached information about missing objects.
return array_filter($list);
}
/**
* {@inheritdoc}
*/
public function setMultiple(array $items)
{
$this->consistentBackend->setMultiple($items);
$this->markAsOutdated();
// Don't write the cache tags to the fast backend as any cache tag
// invalidation results in an invalidation of the whole fast backend.
foreach ($items as &$item) {
unset($item['tags']);
}
$this->fastBackend->setMultiple($items);
}
/**
* {@inheritdoc}
*/
public function setMultiple(array $items)
{
$this->markAsOutdated();
$this->consistentBackend->setMultiple($items);
$this->fastBackend->setMultiple($items);
}
/**
* {@inheritdoc}
*/
public function setMultiple(array $items)
{
return $this->cacheBackend->setMultiple($items);
}
