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<?php namespace Comodojo\Cache\Drivers; |
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use \Comodojo\Cache\Traits\InstanceTrait; |
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use \Comodojo\Cache\Components\UniqueId; |
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use \Memcached as MemcachedInstance; |
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use \Exception; |
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/** |
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* memcached provider |
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* |
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* @package Comodojo Spare Parts |
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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 Memcached extends AbstractDriver { |
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use InstanceTrait; |
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const DRIVER_NAME = "memcached"; |
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public function __construct(array $configuration = []) { |
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if ( class_exists('Memcached') === false ) throw new Exception("ext-memcached not available"); |
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$this->setInstance(new MemcachedInstance($configuration['persistent_id'])); |
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$this->getInstance() |
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->addServer($configuration['server'], $configuration['port'], $configuration['weight']); |
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} |
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public function test() { |
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return sizeof($this->getInstance()->getServerList()) > 0; |
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} |
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public function get($key, $namespace) { |
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$scope = $this->getNamespaceKey($namespace); |
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if ( $scope === false ) return null; |
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$shadowName = "$scope-$key"; |
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$instance = $this->getInstance(); |
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$item = $instance->get($shadowName); |
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return $instance->getResultCode() == MemcachedInstance::RES_NOTFOUND ? null : $item; |
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} |
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public function set($key, $namespace, $value, $ttl = null) { |
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if ( $ttl == null ) $ttl = 0; |
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$scope = $this->getNamespaceKey($namespace); |
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if ( $scope === false ) $scope = $this->setNamespaceKey($namespace); |
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if ( $scope === false ) return false; |
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$shadowName = "$scope-$key"; |
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return $this->getInstance()->set($shadowName, $value, $ttl); |
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} |
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View Code Duplication |
public function delete($key, $namespace) { |
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$scope = $this->getNamespaceKey($namespace); |
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if ( $scope === false ) return false; |
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$shadowName = "$scope-$key"; |
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return $this->getInstance()->delete($shadowName); |
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} |
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public function clear($namespace = null) { |
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View Code Duplication |
if ( $namespace == null ) { |
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return $this->getInstance()->flush(); |
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} else { |
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$scope = $this->getNamespaceKey($namespace); |
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if ( $scope === false ) return false; |
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return $this->getInstance()->delete($namespace); |
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} |
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} |
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public function getMultiple(array $keys, $namespace) { |
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if ( empty($keys) ) return []; |
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$keypad = array_combine($keys, array_fill(0, count($keys), null)); |
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$scope = $this->getNamespaceKey($namespace); |
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if ( $scope === false ) return $keypad; |
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$keyscope = array_map(function($key) use($scope) { |
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return "$scope-$key"; |
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}, $keys); |
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if ( version_compare(phpversion(), '7.0.0', '<') ) { |
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$data = $this->getInstance()->getMulti($keyscope, $null = null, MemcachedInstance::GET_PRESERVE_ORDER); |
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} else { |
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$data = $this->getInstance()->getMulti($keyscope, MemcachedInstance::GET_PRESERVE_ORDER); |
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} |
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$return = []; |
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foreach ( $data as $scoped_key => $value ) { |
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$key = substr($scoped_key, strlen("$scope-")); |
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$return[$key] = $value; |
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} |
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return array_replace($keypad, $return); |
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} |
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public function setMultiple(array $key_values, $namespace, $ttl = null) { |
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if ( $ttl == null ) $ttl = 0; |
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$scope = $this->getNamespaceKey($namespace); |
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if ( $scope === false ) $scope = $this->setNamespaceKey($namespace); |
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if ( $scope === false ) return false; |
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$shadowNames = []; |
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foreach ( $key_values as $key => $value ) { |
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$shadowNames["$scope-$key"] = $value; |
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} |
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return $this->getInstance()->setMulti($shadowNames, $ttl); |
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} |
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public function deleteMultiple(array $keys, $namespace) { |
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$scope = $this->getNamespaceKey($namespace); |
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if ( $scope === false ) return false; |
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$shadowNames = array_map(function($key) use($scope) { |
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return "$scope-$key"; |
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}, $keys); |
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$delete = $this->getInstance()->deleteMulti($shadowNames); |
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return count(array_diff(array_unique($delete), [true])) === 0; |
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} |
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public function has($key, $namespace) { |
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return $this->get($key, $namespace) === null ? false : true; |
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} |
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public function stats() { |
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return $this->getInstance()->getStats(); |
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} |
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/** |
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* Set namespace key |
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* |
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* @return mixed |
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*/ |
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private function setNamespaceKey($namespace) { |
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$uId = UniqueId::get(); |
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return $this->getInstance()->set($namespace, $uId, 0) === false ? false : $uId; |
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} |
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/** |
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* Get namespace key |
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* |
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* @return string |
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*/ |
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private function getNamespaceKey($namespace) { |
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return $this->getInstance()->get($namespace); |
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} |
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} |
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comodojo /
cache
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.