class-loader/XcacheClassLoader.php at 3.4 · symfony/class-loader · GitHub

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<?php

* This file is part of the Symfony package.

* (c) Fabien Potencier <fabien@symfony.com>

* For the full copyright and license information, please view the LICENSE

* file that was distributed with this source code.

namespace Symfony\Component\ClassLoader;

@trigger_error('The '.__NAMESPACE__.'\XcacheClassLoader class is deprecated since Symfony 3.3 and will be removed in 4.0. Use `composer install --apcu-autoloader` instead.', \E_USER_DEPRECATED);

/**

* XcacheClassLoader implements a wrapping autoloader cached in XCache for PHP 5.3.

* It expects an object implementing a findFile method to find the file. This

* allows using it as a wrapper around the other loaders of the component (the

* ClassLoader for instance) but also around any other autoloaders following

* this convention (the Composer one for instance).

* // with a Symfony autoloader

* $loader = new ClassLoader();

* $loader->addPrefix('Symfony\Component', __DIR__.'/component');

* $loader->addPrefix('Symfony', __DIR__.'/framework');

* // or with a Composer autoloader

* use Composer\Autoload\ClassLoader;

* $loader = new ClassLoader();

* $loader->add('Symfony\Component', __DIR__.'/component');

* $loader->add('Symfony', __DIR__.'/framework');

* $cachedLoader = new XcacheClassLoader('my_prefix', $loader);

* // activate the cached autoloader

* $cachedLoader->register();

* // eventually deactivate the non-cached loader if it was registered previously

* // to be sure to use the cached one.

* $loader->unregister();

* @author Fabien Potencier <fabien@symfony.com>

* @author Kris Wallsmith <kris@symfony.com>

* @author Kim Hemsø Rasmussen <kimhemsoe@gmail.com>

* @deprecated since version 3.3, to be removed in 4.0. Use `composer install --apcu-autoloader` instead.

class XcacheClassLoader

{

private $prefix;

private $decorated;

/**

* @param string $prefix The XCache namespace prefix to use

* @param object $decorated A class loader object that implements the findFile() method

* @throws \RuntimeException

* @throws \InvalidArgumentException

public function __construct($prefix, $decorated)

{

if (!\extension_loaded('xcache')) {

throw new \RuntimeException('Unable to use XcacheClassLoader as XCache is not enabled.');

}

if (!method_exists($decorated, 'findFile')) {

throw new \InvalidArgumentException('The class finder must implement a "findFile" method.');

}

$this->prefix = $prefix;

$this->decorated = $decorated;

}

/**

* Registers this instance as an autoloader.

* @param bool $prepend Whether to prepend the autoloader or not

public function register($prepend = false)

{

spl_autoload_register([$this, 'loadClass'], true, $prepend);

}

/**

* Unregisters this instance as an autoloader.

public function unregister()

{

spl_autoload_unregister([$this, 'loadClass']);

}

/**

* Loads the given class or interface.

* @param string $class The name of the class

* @return bool|null True, if loaded

public function loadClass($class)

{

if ($file = $this->findFile($class)) {

require $file;

return true;

}

return null;

}

/**

* Finds a file by class name while caching lookups to Xcache.

* @param string $class A class name to resolve to file

* @return string|null

public function findFile($class)

{

if (xcache_isset($this->prefix.$class)) {

$file = xcache_get($this->prefix.$class);

} else {

$file = $this->decorated->findFile($class) ?: null;

xcache_set($this->prefix.$class, $file);

}

return $file;

}

/**

* Passes through all unknown calls onto the decorated object.

public function __call($method, $args)

{

return \call_user_func_array([$this->decorated, $method], $args);

}

class-loader/XcacheClassLoader.php at 3.4 · symfony/class-loader · GitHub

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