public function checkConnectionDetails($host, $port, $timeout, $password)
{
$redis = new Redis();
$redis->setConfig($host, $port, $timeout, $password);
if (!$redis->testConnection()) {
throw new \Exception('Connection to Redis failed. Please verify Redis host and port');
}
$version = $redis->getServerVersion();
if (version_compare($version, '2.8.0') < 0) {
throw new \Exception('At least Redis server 2.8.0 is required');
}
}
private static function makeBackendFromSettings(Settings $settings)
{
$host = $settings->redisHost->getValue();
$port = $settings->redisPort->getValue();
$timeout = $settings->redisTimeout->getValue();
$password = $settings->redisPassword->getValue();
$database = $settings->redisDatabase->getValue();
$redis = new Queue\Backend\Redis();
$redis->setConfig($host, $port, $timeout, $password);
$redis->setDatabase($database);
return $redis;
}
private function disconnect()
{
if ($this->isConnected()) {
$this->redis->close();
}
$this->redis = null;
}
public function expireLock($ttlInSeconds)
{
if ($ttlInSeconds > 0 && $this->lockValue) {
$success = $this->backend->expireIfKeyHasValue($this->lockKey, $this->lockValue, $ttlInSeconds);
if (!$success) {
$value = $this->backend->get($this->lockKey);
$message = sprintf('Failed to expire key %s (%s / %s).', $this->lockKey, $this->lockValue, (string) $value);
if ($value === false) {
Common::printDebug($message . ' It seems like the key already expired as it no longer exists.');
} elseif (!empty($value) && $value == $this->lockValue) {
Common::printDebug($message . ' We still have the lock but for some reason it did not expire.');
} elseif (!empty($value)) {
Common::printDebug($message . ' It seems to be locked by another queue.');
} else {
Common::printDebug($message . ' Failed to expire key.');
}
return false;
}
return true;
}
return false;
}
public function test_checkConnectionDetails_shouldFailIfPortIsWrong()
{
$this->redis->setConfig('127.0.0.1', 6370, 0.2, null);
$success = $this->redis->testConnection();
$this->assertFalse($success);
}
public function markRequestSetsAsProcessed()
{
$this->backend->removeFirstXValuesFromList($this->key, $this->numRequestsToProcessInBulk);
}
