class MemcachedProfilerStorage

MemcachedProfilerStorageTest.php in drupal/core/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/Tests/Profiler/MemcachedProfilerStorageTest.php

class MemcachedProfilerStorage extends BaseMemcacheProfilerStorage {

  /**
   * @var Memcached
   */
  private $memcached;

  /**
   * Internal convenience method that returns the instance of the Memcached
   *
   * @return Memcached
   */
  protected function getMemcached() {
    if (null === $this->memcached) {
      if (!preg_match('#^memcached://(?(?=\\[.*\\])\\[(.*)\\]|(.*)):(.*)$#', $this->dsn, $matches)) {
        throw new \RuntimeException(sprintf('Please check your configuration. You are trying to use Memcached with an invalid dsn "%s". The expected format is "memcached://[host]:port".', $this->dsn));
      }
      $host = $matches[1] ?: $matches[2];
      $port = $matches[3];
      $memcached = new Memcached();

      //disable compression to allow appending
      $memcached
        ->setOption(Memcached::OPT_COMPRESSION, false);
      $memcached
        ->addServer($host, $port);
      $this->memcached = $memcached;
    }
    return $this->memcached;
  }

  /**
   * Set instance of the Memcached
   *
   * @param Memcached $memcached
   */
  public function setMemcached($memcached) {
    $this->memcached = $memcached;
  }

  /**
   * {@inheritdoc}
   */
  protected function getValue($key) {
    return $this
      ->getMemcached()
      ->get($key);
  }

  /**
   * {@inheritdoc}
   */
  protected function setValue($key, $value, $expiration = 0) {
    return $this
      ->getMemcached()
      ->set($key, $value, time() + $expiration);
  }

  /**
   * {@inheritdoc}
   */
  protected function delete($key) {
    return $this
      ->getMemcached()
      ->delete($key);
  }

  /**
   * {@inheritdoc}
   */
  protected function appendValue($key, $value, $expiration = 0) {
    $memcached = $this
      ->getMemcached();
    if (!($result = $memcached
      ->append($key, $value))) {
      return $memcached
        ->set($key, $value, $expiration);
    }
    return $result;
  }

}