class FilesystemCache in Zircon Profile 8

Filesystem cache driver.

@since 2.3 @author Fabio B. Silva <[e-mail]>

Hierarchy

• class \Doctrine\Common\Cache\CacheProvider implements Cache, ClearableCache, FlushableCache, MultiGetCache
  • class \Doctrine\Common\Cache\FileCache
    • class \Doctrine\Common\Cache\FilesystemCache

1 file declares its use of FilesystemCache

FilesystemCacheTest.php in vendor/doctrine/cache/tests/Doctrine/Tests/Common/Cache/FilesystemCacheTest.php

File

vendor/doctrine/cache/lib/Doctrine/Common/Cache/FilesystemCache.php, line 28

Namespace

Doctrine\Common\Cache

class FilesystemCache extends FileCache {
  const EXTENSION = '.doctrinecache.data';

  /**
   * {@inheritdoc}
   */
  public function __construct($directory, $extension = self::EXTENSION, $umask = 02) {
    parent::__construct($directory, $extension, $umask);
  }

  /**
   * {@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);
  }

}

Members

Name	Modifiers	Type	Description	Overrides
Cache::STATS_HITS		constant
Cache::STATS_MEMORY_AVAILABLE		constant
Cache::STATS_MEMORY_AVAILIABLE		constant	Only for backward compatibility (may be removed in next major release)
Cache::STATS_MEMORY_USAGE		constant
Cache::STATS_MISSES		constant
Cache::STATS_UPTIME		constant
CacheProvider::$namespace	private	property	The namespace to prefix all cache ids with.
CacheProvider::$namespaceVersion	private	property	The namespace version.
CacheProvider::contains	public	function	Tests if an entry exists in the cache. Overrides Cache::contains
CacheProvider::delete	public	function	Deletes a cache entry. Overrides Cache::delete
CacheProvider::deleteAll	public	function	Deletes all cache entries in the current cache namespace. Overrides ClearableCache::deleteAll
CacheProvider::DOCTRINE_NAMESPACE_CACHEKEY		constant
CacheProvider::doFetchMultiple	protected	function	Default implementation of doFetchMultiple. Each driver that supports multi-get should owerwrite it.	4
CacheProvider::fetch	public	function	Fetches an entry from the cache. Overrides Cache::fetch
CacheProvider::fetchMultiple	public	function	Returns an associative array of values for keys is found in cache. Overrides MultiGetCache::fetchMultiple
CacheProvider::flushAll	public	function	Flushes all cache entries, globally. Overrides FlushableCache::flushAll
CacheProvider::getNamespace	public	function	Retrieves the namespace that prefixes all cache ids.
CacheProvider::getNamespaceCacheKey	private	function	Returns the namespace cache key.
CacheProvider::getNamespacedId	private	function	Prefixes the passed id with the configured namespace value.
CacheProvider::getNamespaceVersion	private	function	Returns the namespace version.
CacheProvider::getStats	public	function	Retrieves cached information from the data store. Overrides Cache::getStats
CacheProvider::save	public	function	Puts data into the cache. Overrides Cache::save
CacheProvider::setNamespace	public	function	Sets the namespace to prefix all cache ids with.	1
FileCache::$directory	protected	property	The cache directory.
FileCache::$disallowedCharacterPatterns	private	property
FileCache::$extension	private	property	The cache file extension.
FileCache::$replacementCharacters	private	property
FileCache::$umask	private	property
FileCache::createPathIfNeeded	private	function	Create path if needed.
FileCache::doDelete	protected	function	Deletes a cache entry. Overrides CacheProvider::doDelete
FileCache::doFlush	protected	function	Flushes all cache entries. Overrides CacheProvider::doFlush
FileCache::doGetStats	protected	function	Retrieves cached information from the data store. Overrides CacheProvider::doGetStats
FileCache::getDirectory	public	function	Gets the cache directory.
FileCache::getExtension	public	function	Gets the cache file extension.
FileCache::getFilename	protected	function
FileCache::getIterator	private	function
FileCache::writeFile	protected	function	Writes a string content to file in an atomic way.
FilesystemCache::doContains	protected	function	Tests if an entry exists in the cache. Overrides CacheProvider::doContains
FilesystemCache::doFetch	protected	function	Fetches an entry from the cache. Overrides CacheProvider::doFetch
FilesystemCache::doSave	protected	function	Puts data into the cache. Overrides CacheProvider::doSave
FilesystemCache::EXTENSION		constant
FilesystemCache::__construct	public	function	Constructor. Overrides FileCache::__construct