public function current()
{
if ($this->_count === null || $this->_count == 0) {
throw new Rediska_Connection_Exception('call valid before');
}
$response = Rediska_Connection_Exec::readResponseFromConnection($this->_connection);
if ($this->_callback !== null) {
$response = call_user_func($this->_callback, $response);
}
return $response;
}
/**
* Get response from connection
*
* @param Rediska_Connection $connection
* @return Rediska_PubSub_Response_Abstract
*/
protected function _getResponseFromConnection(Rediska_Connection $connection)
{
$response = Rediska_Connection_Exec::readResponseFromConnection($connection);
if ($response === null || $response === true) {
return null;
}
list($type, $channel, $body) = $response;
if ($this->getRediska()->getOption('namespace') !== '' && strpos($channel, $this->getRediska()->getOption('namespace')) === 0) {
$channel = substr($channel, strlen($this->getRediska()->getOption('namespace')));
}
switch ($type) {
case self::SUBSCRIBE:
return new Rediska_PubSub_Response_Subscribe($connection, $channel);
case self::UNSUBSCRIBE:
return new Rediska_PubSub_Response_Unsubscribe($connection, $channel);
case self::MESSAGE:
$message = $this->getRediska()->getSerializer()->unserialize($body);
return new Rediska_PubSub_Response_Message($connection, $channel, $message);
default:
throw new Rediska_PubSub_Response_Exception('Unknown reponse type: ' . $type);
}
}
/**
* Get response from connection
*
* @param Rediska_Connection $connection
* @return array|null
*/
protected function _getResponseFromConnection(Rediska_Connection $connection)
{
$response = Rediska_Connection_Exec::readResponseFromConnection($connection);
if ($response === null || $response === true) {
return null;
}
$timestampAndCommand = explode(' ', $response, 2);
$command = $timestampAndCommand[1];
if ($command == '"MONITOR"') {
return null;
}
return $timestampAndCommand;
}