mirror of
https://github.com/the-djmaze/snappymail.git
synced 2025-01-10 16:58:07 +08:00
77 lines
1.8 KiB
PHP
77 lines
1.8 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\Command;
|
|
|
|
/**
|
|
* Base class used to implement an higher level abstraction for commands based
|
|
* on Lua scripting with EVAL and EVALSHA.
|
|
*
|
|
* @link http://redis.io/commands/eval
|
|
*
|
|
* @author Daniele Alessandri <suppakilla@gmail.com>
|
|
*/
|
|
abstract class ScriptCommand extends ServerEvalSHA
|
|
{
|
|
/**
|
|
* Gets the body of a Lua script.
|
|
*
|
|
* @return string
|
|
*/
|
|
abstract public function getScript();
|
|
|
|
/**
|
|
* Specifies the number of arguments that should be considered as keys.
|
|
*
|
|
* The default behaviour for the base class is to return 0 to indicate that
|
|
* all the elements of the arguments array should be considered as keys, but
|
|
* subclasses can enforce a static number of keys.
|
|
*
|
|
* @return int
|
|
*/
|
|
protected function getKeysCount()
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Returns the elements from the arguments that are identified as keys.
|
|
*
|
|
* @return array
|
|
*/
|
|
public function getKeys()
|
|
{
|
|
return array_slice($this->getArguments(), 2, $this->getKeysCount());
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
protected function filterArguments(array $arguments)
|
|
{
|
|
if (($numkeys = $this->getKeysCount()) && $numkeys < 0) {
|
|
$numkeys = count($arguments) + $numkeys;
|
|
}
|
|
|
|
return array_merge(array(sha1($this->getScript()), (int) $numkeys), $arguments);
|
|
}
|
|
|
|
/**
|
|
* @return array
|
|
*/
|
|
public function getEvalArguments()
|
|
{
|
|
$arguments = $this->getArguments();
|
|
$arguments[0] = $this->getScript();
|
|
|
|
return $arguments;
|
|
}
|
|
}
|