118 lines
No EOL
2.8 KiB
PHP
118 lines
No EOL
2.8 KiB
PHP
<?php
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/**
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* @author Ulrich Hecht <ulrich.hecht@hecht-software.de>
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* @date 12/01/2016
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*/
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namespace AppBundle;
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class RedisClassLoader
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{
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private $prefix;
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/**
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* A class loader object that implements the findFile() method.
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*
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* @var object
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*/
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private $decorated;
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/**
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* @var null|\Redis
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*/
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private $redis = null;
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/**
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* Constructor.
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*
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* @param string $prefix The XCache namespace prefix to use
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* @param object $decorated A class loader object that implements the findFile() method
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*
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* @throws \RuntimeException
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* @throws \InvalidArgumentException
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*/
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public function __construct($prefix, $decorated)
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{
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if (extension_loaded('redis')) {
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$this->redis = new \Redis();
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$this->redis->connect('127.0.0.1');
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}
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if (!method_exists($decorated, 'findFile')) {
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throw new \InvalidArgumentException('The class finder must implement a "findFile" method.');
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}
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$this->prefix = $prefix;
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$this->decorated = $decorated;
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}
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/**
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* Registers this instance as an autoloader.
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*
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* @param bool $prepend Whether to prepend the autoloader or not
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*/
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public function register($prepend = false)
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{
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spl_autoload_register(array($this, 'loadClass'), true, $prepend);
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}
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/**
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* Unregisters this instance as an autoloader.
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*/
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public function unregister()
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{
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spl_autoload_unregister(array($this, 'loadClass'));
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}
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/**
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* Loads the given class or interface.
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*
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* @param string $class The name of the class
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*
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* @return bool|null True, if loaded
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*/
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public function loadClass($class)
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{
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if ($file = $this->findFile($class)) {
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require $file;
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return true;
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}
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}
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/**
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* Finds a file by class name while caching lookups to Xcache.
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*
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* @param string $class A class name to resolve to file
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*
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* @return string|null
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*/
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public function findFile($class)
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{
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if ($this->redis === null)
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{
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return $this->decorated->findFile($class) ?: null;
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}
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if ($this->redis->exists($this->prefix.$class))
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{
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$file = $this->redis->get($this->prefix.$class);
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}
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else
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{
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$file = $this->decorated->findFile($class) ?: null;
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$this->redis->set($this->prefix.$class, $file);
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}
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return $file;
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}
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/**
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* Passes through all unknown calls onto the decorated object.
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*/
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public function __call($method, $args)
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{
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return call_user_func_array(array($this->decorated, $method), $args);
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}
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} |