<?php
namespace Guzzle\Service;
use Guzzle\Cache\CacheAdapterInterface;
/**
* Decorator that adds caching to a service description loader
*/
class CachingConfigLoader implements ConfigLoaderInterface
{
/** @var ConfigLoaderInterface */
protected $loader;
/** @var CacheAdapterInterface */
protected $cache;
/**
* @param ConfigLoaderInterface $loader Loader used to load the config when there is a cache miss
* @param CacheAdapterInterface $cache Object used to cache the loaded result
*/
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;
}
}