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<?php |
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/** |
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* Inspired by (c) Rasmus Schultz <[email protected]> |
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* <https://github.com/mindplay-dk/php-annotations> |
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*/ |
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namespace micro\cache\system; |
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/** |
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* This class is responsible for storing Arrays in PHP files. |
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*/ |
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abstract class AbstractDataCache { |
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/** |
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* |
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* @var string The PHP opening tag (used when writing cache files) |
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*/ |
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const PHP_TAG="<?php\n"; |
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protected $_root; |
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protected $postfix; |
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public function __construct($root, $postfix=""){ |
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$this->_root=$root; |
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$this->postfix=$postfix; |
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} |
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/** |
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* Check if annotation-data for the key has been stored. |
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* @param string $key cache key |
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* @return boolean true if data with the given key has been stored; otherwise false |
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*/ |
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abstract public function exists($key); |
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public function expired($key, $duration) { |
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if ($this->exists($key)) { |
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if (\is_int($duration)) { |
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return \time() - $this->getTimestamp($key) > $duration; |
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} else { |
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return false; |
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} |
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} else { |
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return true; |
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} |
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} |
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/** |
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* Caches the given data with the given key. |
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* @param string $key cache key |
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* @param string $code the source-code to be cached |
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* @throws AnnotationException if file could not be written |
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*/ |
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public function store($key, $code, $php=true) { |
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$content=""; |
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if ($php) |
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$content=self::PHP_TAG; |
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$content.=$code . "\n"; |
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$this->storeContent($key, $content); |
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} |
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public function getRoot() { |
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return $this->_root; |
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} |
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abstract protected function storeContent($key,$content); |
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/** |
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* Fetches data stored for the given key. |
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* @param string $key cache key |
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* @return mixed the cached data |
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*/ |
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abstract public function fetch($key); |
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/** |
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* return data stored for the given key. |
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* @param string $key cache key |
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* @return mixed the cached data |
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*/ |
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abstract public function file_get_contents($key); |
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/** |
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* Returns the timestamp of the last cache update for the given key. |
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* |
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* @param string $key cache key |
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* @return int unix timestamp |
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*/ |
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abstract public function getTimestamp($key); |
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abstract public function remove($key); |
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abstract public function clear(); |
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} |
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phpMv /
ubiquity
