gistfile1.txt

use Guzzle\Cache\CacheAdapterInterface;

/**
 * Custom cache adapter.
 *
 * Leverages the default Drupal cache bin system for caching Guzzle responses.
 */
class DrupalCacheAdapter implements CacheAdapterInterface {

  /**
   * The cache object.
   *
   * @var \DrupalCacheInterface
   */
  protected $cache;

  /**
   * Constructs a SugarCacheAdapter instance.
   *
   * @param string $bin
   *   (Optional) The cache bin to use.
   */
  function __construct($bin) {
    $this->cache = _cache_get_object($bin);
  }

  /**
   * {@inheritdoc}
   */
  public function contains($id, array $options = NULL) {
    if ($this->cache->get($id)) {
      return TRUE;
    }
    return FALSE;
  }

  /**
   * {@inheritdoc}
   */
  public function delete($id, array $options = NULL) {
    $this->cache->clear($id);
    return TRUE;
  }

  /**
   * {@inheritdoc}
   */
  public function fetch($id, array $options = NULL) {
    if ($cache = $this->cache->get($id)) {
      return $cache->data;
    }
    return FALSE;
  }

  /**
   * {@inheritdoc}
   */
  public function save($id, $data, $lifetime = FALSE, array $options = NULL) {
    $lifetime = $lifetime === FALSE ? CACHE_PERMANENT : REQUEST_TIME + $lifetime;
    $this->cache->set($id, $data, $lifetime);
    return TRUE;
  }
}