/**
* Remove the expired jobs from a given queue.
*
* @param \Predis\Transaction\MultiExec $transaction
* @param string $from
* @param int $time
* @return void
*/
protected function removeExpiredJobs($transaction, $from, $time)
{
$transaction->multi();
$transaction->zremrangebyscore($from, '-inf', $time);
}
/**
* Actual transaction context initializer method.
*
* @param array $options Options for the context.
* @param mixed $callable Optional callable used to execute the context.
*
* @return MultiExecTransaction|array
*/
protected function createTransaction(array $options = null, $callable = null)
{
$transaction = new MultiExecTransaction($this, $options);
if (isset($callable)) {
return $transaction->execute($callable);
}
return $transaction;
}
/**
* @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));
}
/**
* Adds the commands needed for the count function.
*
* @param MultiExec $multi A MultiExec instance
* @param string $subject A unique identifier, for example a session id or an IP
* @param int $bucket Bucket
* @param int $count Count
*/
private function addMultiExecCount(MultiExec $multi, $subject, $bucket, $count)
{
// Get the counts from the previous `$count` buckets
$multi->hget($subject, $bucket);
while ($count--) {
$multi->hget($subject, (--$bucket + $this->bucketCount) % $this->bucketCount);
}
}
/**
* @group disconnected
* @expectedException \Predis\Response\ServerException
* @expectedExceptionMessage ERR simulated failure on EXEC
*/
public function testExceptionsOptionDoesNotAffectTransactionControlCommands()
{
$connection = $this->getMockedConnection(function (CommandInterface $command) {
switch ($command->getId()) {
case 'MULTI':
return true;
case 'EXEC':
return new Response\Error('ERR simulated failure on EXEC');
default:
return new Response\Status('QUEUED');
}
});
$client = new Client($connection, array('exceptions' => false));
$tx = new MultiExec($client);
$tx->multi()->echo('test')->exec();
}
/**
* 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;
}
