mirror of
https://github.com/predis/predis.git
synced 2026-08-26 07:29:55 +00:00
Daniele Alessandri
51 lines
1.3 KiB
PHP
51 lines
1.3 KiB
PHP
<?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\Cluster;
|
|
|
|
use Predis\Cluster\Hash\CRC16HashGenerator;
|
|
use Predis\Cluster\Hash\HashGeneratorInterface;
|
|
|
|
/**
|
|
* Default class used by Predis to calculate hashes out of keys of
|
|
* commands supported by redis-cluster.
|
|
*
|
|
* @author Daniele Alessandri <suppakilla@gmail.com>
|
|
*/
|
|
class RedisClusterHashStrategy extends PredisClusterHashStrategy
|
|
{
|
|
/**
|
|
*
|
|
*/
|
|
public function __construct(HashGeneratorInterface $hashGenerator = null)
|
|
{
|
|
parent::__construct($hashGenerator ?: new CRC16HashGenerator());
|
|
}
|
|
|
|
/**
|
|
* Returns only the hashable part of a key (delimited by "{...}"), or the
|
|
* whole key if a key tag is not found in the string.
|
|
*
|
|
* @param string $key A key.
|
|
* @return string
|
|
*/
|
|
protected function extractKeyTag($key)
|
|
{
|
|
if (false !== $start = strpos($key, '{')) {
|
|
if (false !== ($end = strpos($key, '}', $start)) && $end !== ++$start) {
|
|
$key = substr($key, $start, $end - $start);
|
|
}
|
|
}
|
|
|
|
return $key;
|
|
}
|
|
}
|