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MultiBulkResponseSimple.php
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MultiBulkResponseSimple.php
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<?php
/*
* This file is part of the Predis package.
*
* (c) Daniele Alessandri <suppakilla@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Predis\Iterator;
use Predis\Connection\SingleConnectionInterface;
/**
* Streams a multibulk reply.
*
* @author Daniele Alessandri <suppakilla@gmail.com>
*/
class MultiBulkResponseSimple extends MultiBulkResponse
{
private $connection;
/**
* @param SingleConnectionInterface $connection Connection to Redis.
* @param int $size Number of elements of the multibulk reply.
*/
public function __construct(SingleConnectionInterface $connection, $size)
{
$this->connection = $connection;
$this->position = 0;
$this->current = $size > 0 ? $this->getValue() : null;
$this->replySize = $size;
}
/**
* Handles the synchronization of the client with the Redis protocol
* then PHP's garbage collector kicks in (e.g. then the iterator goes
* out of the scope of a foreach).
*/
public function __destruct()
{
$this->sync(true);
}
/**
* Synchronizes the client with the queued elements that have not been
* read from the connection by consuming the rest of the multibulk reply,
* or simply by dropping the connection.
*
* @param Boolean $drop True to synchronize the client by dropping the connection.
* False to synchronize the client by consuming the multibulk reply.
*/
public function sync($drop = false)
{
if ($drop == true) {
if ($this->valid()) {
$this->position = $this->replySize;
$this->connection->disconnect();
}
} else {
while ($this->valid()) {
$this->next();
}
}
}
/**
* Reads the next item of the multibulk reply from the server.
*
* @return mixed
*/
protected function getValue()
{
return $this->connection->read();
}
}