/**
* Returns the handler used by the protocol reader for inline responses.
*
* @return \Closure
*/
protected function getStatusHandler()
{
return function ($payload) {
return StatusResponse::get($payload);
};
}
/**
* {@inheritdoc}
*/
public function handle(CompositeConnectionInterface $connection, $payload)
{
return Status::get($payload);
}
/**
* {@inheritdoc}
*/
public function read()
{
$socket = $this->getResource();
$chunk = fgets($socket);
if ($chunk === false || $chunk === '') {
$this->onConnectionError('Error while reading line from the server.');
}
$prefix = $chunk[0];
$payload = substr($chunk, 1, -2);
switch ($prefix) {
case '+':
return StatusResponse::get($payload);
case '$':
$size = (int) $payload;
if ($size === -1) {
return;
}
$bulkData = '';
$bytesLeft = $size += 2;
do {
$chunk = fread($socket, min($bytesLeft, 4096));
if ($chunk === false || $chunk === '') {
$this->onConnectionError('Error while reading bytes from the server.');
}
$bulkData .= $chunk;
$bytesLeft = $size - strlen($bulkData);
} while ($bytesLeft > 0);
return substr($bulkData, 0, -2);
case '*':
$count = (int) $payload;
if ($count === -1) {
return;
}
$multibulk = array();
for ($i = 0; $i < $count; ++$i) {
$multibulk[$i] = $this->read();
}
return $multibulk;
case ':':
return (int) $payload;
case '-':
return new ErrorResponse($payload);
default:
$this->onProtocolError("Unknown response prefix: '{$prefix}'.");
return;
}
}