/** * Handles a multi-bulk reply returned by Redis. * * @param ComposableConnectionInterface $connection Connection to Redis. * @param string $lengthString Number of items in the multi-bulk reply. * @return array */ public function handle(ComposableConnectionInterface $connection, $lengthString) { $length = (int) $lengthString; if ("{$length}" !== $lengthString) { CommunicationException::handle(new ProtocolException($connection, "Cannot parse '{$lengthString}' as multi-bulk length")); } if ($length === -1) { return null; } $list = array(); if ($length > 0) { $handlersCache = array(); $reader = $connection->getProtocol()->getReader(); for ($i = 0; $i < $length; $i++) { $header = $connection->readLine(); $prefix = $header[0]; if (isset($handlersCache[$prefix])) { $handler = $handlersCache[$prefix]; } else { $handler = $reader->getHandler($prefix); $handlersCache[$prefix] = $handler; } $list[$i] = $handler->handle($connection, substr($header, 1)); } } return $list; }
/** * {@inheritdoc} */ public function read(ComposableConnectionInterface $connection) { $header = $connection->readLine(); if ($header === '') { $this->protocolError($connection, 'Unexpected empty header'); } $prefix = $header[0]; if (!isset($this->handlers[$prefix])) { $this->protocolError($connection, "Unknown prefix: '{$prefix}'"); } $handler = $this->handlers[$prefix]; return $handler->handle($connection, substr($header, 1)); }
/** * {@inheritdoc} */ public function read(ComposableConnectionInterface $connection) { $chunk = $connection->readLine(); $prefix = $chunk[0]; $payload = substr($chunk, 1); switch ($prefix) { case '+': // inline switch ($payload) { case 'OK': return true; case 'QUEUED': return new ResponseQueued(); default: return $payload; } case '$': // bulk $size = (int) $payload; if ($size === -1) { return null; } return substr($connection->readBytes($size + 2), 0, -2); case '*': // multi bulk $count = (int) $payload; if ($count === -1) { return null; } if ($this->mbiterable == true) { return new MultiBulkResponseSimple($connection, $count); } $multibulk = array(); for ($i = 0; $i < $count; $i++) { $multibulk[$i] = $this->read($connection); } return $multibulk; case ':': // integer return (int) $payload; case '-': // error return new ResponseError($payload); default: Helpers::onCommunicationException(new ProtocolException($connection, "Unknown prefix: '{$prefix}'")); } }