public function updateCollectionsFromCache()
{
$this->_cache->refreshCollections();
$collections = $this->_cache->getCollections();
foreach (array_keys($this->_collections) as $id) {
if (!empty($collections[$id])) {
$this->_logger->info(sprintf('[%s] Refreshing %s from the cache.', $this->_procid, $id));
$this->_collections[$id] = $collections[$id];
}
}
}