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<?php |
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namespace Onoi\Cache; |
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use Zend\Cache\Storage\StorageInterface; |
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/** |
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* ZF2 Cache adapter |
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* |
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* @note http://framework.zend.com/manual/current/en/modules/zend.cache.storage.adapter.html |
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* |
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* @license GNU GPL v2+ |
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* @since 1.1 |
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* |
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* @author mwjames |
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*/ |
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class ZendCache implements Cache { |
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/** |
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* @var StorageInterface |
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*/ |
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private $cache = null; |
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/** |
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* @var integer |
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*/ |
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private $cacheInserts = 0; |
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/** |
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* @var integer |
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*/ |
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private $cacheDeletes = 0; |
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/** |
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* @var integer |
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*/ |
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private $cacheHits = 0; |
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/** |
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* @var integer |
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*/ |
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private $cacheMisses = 0; |
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/** |
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* @since 1.1 |
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* |
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* @param StorageInterface $cache |
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*/ |
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public function __construct( StorageInterface $cache ) { |
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$this->cache = $cache; |
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} |
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/** |
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* @since 1.1 |
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* |
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* {@inheritDoc} |
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*/ |
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public function fetch( $id ) { |
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if ( $this->contains( $id ) ) { |
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$this->cacheHits++; |
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return $this->cache->getItem( $id ); |
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} |
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$this->cacheMisses++; |
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return false; |
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} |
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/** |
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* @since 1.1 |
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* |
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* {@inheritDoc} |
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*/ |
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public function contains( $id ) { |
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return $this->cache->hasItem( $id ); |
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} |
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/** |
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* @note ZF2 doesn't support per-item ttl storage therefore we use |
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* https://github.com/zendframework/zf2/pull/5386#issuecomment-43191005 |
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* |
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* - ttl with 0 means an item never expires |
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* |
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* @since 1.1 |
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* |
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* {@inheritDoc} |
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*/ |
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public function save( $id, $data, $ttl = 0 ) { |
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$options = $this->cache->getOptions(); |
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$oldTtl = $options->getTtl( $ttl ); |
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$options->setTtl( $ttl ); |
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try { |
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$this->cacheInserts++; |
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$this->cache->setItem( $id, $data ); |
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} catch ( \Exception $e ) { |
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// Don't re-throw any exception, the consumer |
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// should not care about this |
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$this->cacheInserts--; |
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} |
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$options->setTtl( $oldTtl ); |
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} |
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/** |
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* @since 1.1 |
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* |
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* {@inheritDoc} |
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*/ |
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public function delete( $id ) { |
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$this->cacheDeletes++; |
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return $this->cache->removeItem( $id ); |
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} |
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/** |
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* @since 1.1 |
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* |
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* {@inheritDoc} |
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*/ |
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public function getStats() { |
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return array( |
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'inserts' => $this->cacheInserts, |
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'deletes' => $this->cacheDeletes, |
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'hits' => $this->cacheHits, |
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'misses' => $this->cacheMisses |
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); |
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} |
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/** |
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* @since 1.2 |
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* |
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* {@inheritDoc} |
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134
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*/ |
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1 |
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public function getName() { |
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1 |
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return __CLASS__ . '::' . get_class( $this->cache ); |
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} |
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} |
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onoi /
cache
