/usr/share/php/Predis/Command/AbstractCommand.php is in libphp-predis 0.8.3-1.
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/*
* 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 for Redis commands.
*
* @author Daniele Alessandri <suppakilla@gmail.com>
*/
abstract class AbstractCommand implements CommandInterface
{
private $hash;
private $arguments = array();
/**
* Returns a filtered array of the arguments.
*
* @param array $arguments List of arguments.
* @return array
*/
protected function filterArguments(Array $arguments)
{
return $arguments;
}
/**
* {@inheritdoc}
*/
public function setArguments(Array $arguments)
{
$this->arguments = $this->filterArguments($arguments);
unset($this->hash);
}
/**
* Sets the arguments array without filtering.
*
* @param array $arguments List of arguments.
*/
public function setRawArguments(Array $arguments)
{
$this->arguments = $arguments;
unset($this->hash);
}
/**
* {@inheritdoc}
*/
public function getArguments()
{
return $this->arguments;
}
/**
* Gets the argument from the arguments list at the specified index.
*
* @param array $arguments Position of the argument.
*/
public function getArgument($index)
{
if (isset($this->arguments[$index])) {
return $this->arguments[$index];
}
}
/**
* {@inheritdoc}
*/
public function setHash($hash)
{
$this->hash = $hash;
}
/**
* {@inheritdoc}
*/
public function getHash()
{
if (isset($this->hash)) {
return $this->hash;
}
}
/**
* {@inheritdoc}
*/
public function parseResponse($data)
{
return $data;
}
/**
* Helper function used to reduce a list of arguments to a string.
*
* @param string $accumulator Temporary string.
* @param string $argument Current argument.
* @return string
*/
protected function toStringArgumentReducer($accumulator, $argument)
{
if (strlen($argument) > 32) {
$argument = substr($argument, 0, 32) . '[...]';
}
$accumulator .= " $argument";
return $accumulator;
}
/**
* Returns a partial string representation of the command with its arguments.
*
* @return string
*/
public function __toString()
{
return array_reduce(
$this->getArguments(),
array($this, 'toStringArgumentReducer'),
$this->getId()
);
}
/**
* Normalizes the arguments array passed to a Redis command.
*
* @param array $arguments Arguments for a command.
* @return array
*/
public static function normalizeArguments(Array $arguments)
{
if (count($arguments) === 1 && is_array($arguments[0])) {
return $arguments[0];
}
return $arguments;
}
/**
* Normalizes the arguments array passed to a variadic Redis command.
*
* @param array $arguments Arguments for a command.
* @return array
*/
public static function normalizeVariadic(Array $arguments)
{
if (count($arguments) === 2 && is_array($arguments[1])) {
return array_merge(array($arguments[0]), $arguments[1]);
}
return $arguments;
}
}
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