/**
* Open the connection
*
* @return static
*
* @throws ConnectionException
*/
public function connect()
{
if ($this->_client === null) {
$remainingAttempts = (int) $this->_config()->getItem('connect_attempts', 1);
while ($remainingAttempts > 0) {
$remainingAttempts--;
$exception = null;
try {
if (empty($this->_availableHosts)) {
$this->_availableHosts = ValueAs::arr($this->_config()->getItem('hosts', 'localhost'));
$this->_availableHostCount = count($this->_availableHosts);
if ($this->_availableHostCount < 1) {
throw new ConnectionException('Could not find any configured hosts');
}
}
shuffle($this->_availableHosts);
$host = reset($this->_availableHosts);
$this->_socket = new DalSocket($host, (int) $this->_config()->getItem('port', 9160), ValueAs::bool($this->_config()->getItem('persist', false)));
$this->_socket->setConnectTimeout((int) $this->_config()->getItem('connect_timeout', 1000));
$this->_socket->setRecvTimeout((int) $this->_config()->getItem('receive_timeout', 1000));
$this->_socket->setSendTimeout((int) $this->_config()->getItem('send_timeout', 1000));
$this->_transport = new TFramedTransport($this->_socket);
$this->_protocol = new TBinaryProtocolAccelerated($this->_transport);
$this->_client = new CassandraClient($this->_protocol);
$this->_transport->open();
$this->_connected = true;
$this->_clearStmtCache();
$username = $this->_config()->getItem('username');
// @codeCoverageIgnoreStart
if ($username) {
$this->_client->login(new AuthenticationRequest(['credentials' => ['username' => $username, 'password' => $this->_config()->getItem('password', '')]]));
}
//@codeCoverageIgnoreEnd
$this->_switchDatabase(null, !$this->_socket->isPersistent());
} catch (TException $e) {
$exception = $e;
} catch (CqlException $e) {
$exception = $e;
}
if ($exception) {
$this->_removeCurrentHost();
$this->disconnect();
if ($remainingAttempts < 1) {
if (!$exception instanceof CqlException) {
$exception = CqlException::from($exception);
}
throw new ConnectionException('Failed to connect: ' . $exception->getMessage(), $exception->getCode(), $exception->getPrevious());
}
} else {
break;
}
}
}
return $this;
}
