CachingConfigLoader.php

<?php
 
namespace Guzzle\Service;
 
use Guzzle\Cache\CacheAdapterInterface;
 
class CachingConfigLoader implements ConfigLoaderInterface
{
    protected $loader;
 
    protected $cache;
 
    public function __construct(ConfigLoaderInterface $loader, CacheAdapterInterface $cache)
    {
        $this->loader = $loader;
        $this->cache = $cache;
    }
 
    public function load($config, array $options = array())
    {
        if (!is_string($config)) {
            $key = false;
        } else {
            $key = 'loader_' . crc32($config);
            if ($result = $this->cache->fetch($key)) {
                return $result;
            }
        }
 
        $result = $this->loader->load($config, $options);
        if ($key) {
            $this->cache->save($key, $result);
        }
 
        return $result;
    }
}