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<?php namespace Comodojo\Cache; |
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use \Psr\Cache\CacheItemInterface; |
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use \Comodojo\Cache\Components\KeyValidator; |
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use \DateTimeInterface; |
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use \DateTime; |
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use \DateInterval; |
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use \Comodojo\Exception\InvalidCacheArgumentException; |
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/** |
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* @package Comodojo Cache |
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* @author Marco Giovinazzi <[email protected]> |
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* @license MIT |
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* |
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* LICENSE: |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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* THE SOFTWARE. |
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*/ |
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class Item implements CacheItemInterface { |
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protected $key; |
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protected $data; |
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protected $hit = false; |
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protected $expiration = 0; |
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public function __construct($key, $hit = false) { |
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if ( KeyValidator::validateKey($key) === false ) { |
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throw new InvalidCacheArgumentException('Invalid key provided'); |
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} |
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$this->key = $key; |
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$this->hit = $hit; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getKey() { |
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return $this->key; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function get() { |
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return $this->isHit() ? $this->data : null; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function isHit() { |
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// return !is_null($this->data); |
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return $this->hit === true; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function set($value) { |
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$this->data = $value; |
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return $this; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function expiresAt($expiration = null) { |
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if ( is_null($expiration) ) { |
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$this->expiration = 0; |
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} |
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if ( $expiration instanceof DateTimeInterface ) { |
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$this->expiration = $expiration; |
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} |
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return $this; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function expiresAfter($time) { |
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if ( is_null($time) ) { |
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$this->expiration = 0; |
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} |
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if ( is_numeric($time) ) { |
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$this->expiration = new DateTime('now +'.$time.' seconds'); |
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} |
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if ( $time instanceof DateInterval ) { |
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$expiration = new DateTime('now'); |
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$expiration->add($time); |
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$this->expiration = $expiration; |
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} |
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return $this; |
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} |
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/** |
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* Returns the raw value, regardless of hit status. |
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* |
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* Although not part of the CacheItemInterface, this method is used by |
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* the pool for extracting information for saving. |
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* |
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* @return mixed |
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* |
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* @internal |
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*/ |
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public function getRaw() { |
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return $this->data; |
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} |
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/** |
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* Get currently (calculated) ttl of cache item |
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* |
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* This method is not part of the CacheItemInterface. |
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* |
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* @return int |
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* |
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* @internal |
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*/ |
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public function getTtl() { |
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if ( is_null($this->expiration) ) return null; |
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if ( $this->expiration === 0 ) return 0; |
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$now = new DateTime("now"); |
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if ( $now > $this->expiration ) return -1; |
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return (int) $now->diff($this->expiration)->format("%r%s"); |
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} |
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/** |
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* Get expiration time (absolute) |
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* |
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* This method is not part of the CacheItemInterface. |
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* |
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* @return int |
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* |
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* @internal |
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*/ |
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public function getExpiration() { |
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return $this->expiration; |
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} |
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public function __toString() { |
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return serialize($this->get()); |
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} |
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} |
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comodojo /
cache
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