FilesystemCache.php in Plug 7

Namespace

Doctrine\Common\Cache

File

lib/doctrine/cache/lib/Doctrine/Common/Cache/FilesystemCache.php

<?php

/*
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * This software consists of voluntary contributions made by many individuals
 * and is licensed under the MIT license. For more information, see
 * <http://www.doctrine-project.org>.
 */
namespace Doctrine\Common\Cache;


/**
 * Filesystem cache driver.
 *
 * @since  2.3
 * @author Fabio B. Silva <[e-mail]>
 */
class FilesystemCache extends FileCache {
  const EXTENSION = '.doctrinecache.data';

  /**
   * {@inheritdoc}
   */
  public function __construct($directory, $extension = self::EXTENSION) {
    parent::__construct($directory, $extension);
  }

  /**
   * {@inheritdoc}
   */
  protected function doFetch($id) {
    $data = '';
    $lifetime = -1;
    $filename = $this
      ->getFilename($id);
    if (!is_file($filename)) {
      return false;
    }
    $resource = fopen($filename, "r");
    if (false !== ($line = fgets($resource))) {
      $lifetime = (int) $line;
    }
    if ($lifetime !== 0 && $lifetime < time()) {
      fclose($resource);
      return false;
    }
    while (false !== ($line = fgets($resource))) {
      $data .= $line;
    }
    fclose($resource);
    return unserialize($data);
  }

  /**
   * {@inheritdoc}
   */
  protected function doContains($id) {
    $lifetime = -1;
    $filename = $this
      ->getFilename($id);
    if (!is_file($filename)) {
      return false;
    }
    $resource = fopen($filename, "r");
    if (false !== ($line = fgets($resource))) {
      $lifetime = (int) $line;
    }
    fclose($resource);
    return $lifetime === 0 || $lifetime > time();
  }

  /**
   * {@inheritdoc}
   */
  protected function doSave($id, $data, $lifeTime = 0) {
    if ($lifeTime > 0) {
      $lifeTime = time() + $lifeTime;
    }
    $data = serialize($data);
    $filename = $this
      ->getFilename($id);
    return $this
      ->writeFile($filename, $lifeTime . PHP_EOL . $data);
  }

}

Classes

Name	Description
FilesystemCache	Filesystem cache driver.