/**
* @param ReflectionClass $reflClass
* @param object $object
* @param string $propertyName
* @param Metadata $metadata
* @param array $newData
* @param MultiExec $transaction
*/
protected function handleSortedIndex(ReflectionClass $reflClass, $object, $propertyName, $keyName, Metadata $metadata, array $newData, $transaction)
{
$property = $reflClass->getProperty($propertyName);
$property->setAccessible(true);
$mapping = $metadata->getPropertyMapping($propertyName);
if (!isset($newData[$mapping['name']]) || null === $newData[$mapping['name']]) {
$transaction->zrem($this->keyNamingStrategy->getKeyName(array($keyName, $newData[$mapping['name']])), $this->getIdForClass($object, $metadata));
return;
}
$transaction->zadd($this->keyNamingStrategy->getKeyName(array($keyName)), $newData[$mapping['name']], $this->getIdForClass($object, $metadata));
}
/**
* Remove stale elements at the top of the queue and return the first real entry
*
* When data expires, it still leaves a queue entry linking to its
* correlation ID. Clear any of these stale entries at the head of
* the queue.
*
* Note that we run this from inside a transaction, to make it less
* likely that we'll hit a race condition.
*
* @param MultiExec $tx transaction we're working within.
*
* @return string|null Top element's key, or null if the queue is empty.
*/
public function peekWithCleanup(MultiExec $tx)
{
for (;;) {
// Look up the first element in the FIFO ordering.
$values = $tx->zrange(Predis::FIFO_INDEX, 0, 0);
if ($values) {
// Use that value as a key into the key-value block.
$key = $values[0];
$exists = $tx->exists($key);
if (!$exists) {
// If the data is missing, then remove from the FIFO index.
$tx->zrem(Predis::FIFO_INDEX, $key);
} else {
return $key;
}
} else {
break;
}
}
return null;
}
