/**
* @param $version
* @param $input
* @return null|ControlPacket
*/
public static function getByMessage($version, $input)
{
$message = null;
if (empty($input)) {
throw new \InvalidArgumentException();
}
$packetControlType = ord($input[0]) >> 4;
switch ($packetControlType) {
case ConnectionAck::getControlPacketType():
$message = new ConnectionAck($version, $input);
break;
case PingResponse::getControlPacketType():
$message = new PingResponse($version, $input);
break;
case SubscribeAck::getControlPacketType():
$message = new SubscribeAck($version, $input);
break;
case Publish::getControlPacketType():
$message = Publish::parse($version, $input);
break;
case PublishComplete::getControlPacketType():
$message = PublishComplete::parse($version, $input);
break;
case PublishRelease::getControlPacketType():
$message = PublishRelease::parse($version, $input);
break;
case PublishReceived::getControlPacketType():
$message = PublishReceived::parse($version, $input);
break;
default:
throw new \InvalidArgumentException('got message with control packet type ' . $packetControlType);
}
return $message;
}
