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<?php |
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namespace Journey\Cache\Adapters; |
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use Journey\Cache\CacheAdapterInterface; |
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use Memcached; |
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class MemcachedAdapter implements CacheAdapterInterface |
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{ |
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/** |
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* Instance of memcached. |
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* |
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* @var \Memcached |
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*/ |
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protected $instance; |
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/** |
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* Initialize a new localcache. |
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* |
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* @param string $filepath |
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*/ |
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public function __construct(array $config) |
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{ |
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$this->config = $config; |
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$this->instance = new Memcached(); |
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if ($config['servers']) { |
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foreach ($config['servers'] as $server) { |
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$this->instance->addServer($server['host'], $server['port']); |
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} |
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} |
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} |
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/** |
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* Must implement a set method. |
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* |
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* @param string $key key to set as the cache value. |
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* @param mixed $value returns the value of the cached item. |
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* @param integer $expiration when the cache should expire (unix timestamp) |
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* @return $this |
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*/ |
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public function set($key, $value, $expiration = 0) |
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{ |
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$key = $this->createKey($key); |
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$this->instance->set($key, $value, $expiration); |
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return $this; |
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} |
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/** |
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* Must implement a get method. |
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* |
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* @param string $key Get a cached item by key. |
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* @return mixed Returns cached item or false. |
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*/ |
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public function get($key) |
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{ |
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$key = $this->createKey($key); |
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return $this->instance->get($key); |
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} |
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/** |
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* Must implement a delete method. |
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* |
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* @param string $key delete a specific cached item by key. |
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* @return $this |
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*/ |
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public function delete($key) |
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{ |
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$this->instance->delete($this->createKey($key)); |
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return $this; |
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} |
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/** |
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* Clear all of the values set by this cache instance. |
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* |
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* @return $this |
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*/ |
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public function clear() |
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{ |
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$this->instance->delete('memcached_adapter_namespace'); |
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$this->key(true); |
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return $this; |
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} |
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/** |
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* Return the Memcached instance. |
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* |
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* @return \Memcached |
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*/ |
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public function getInstance() |
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{ |
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return $this->instance; |
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} |
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/** |
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* Get the value of a namespace key. |
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* |
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* @return string |
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*/ |
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public function key($reset = false) |
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{ |
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static $key; |
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$key = $reset ? false : $key; |
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if (!$key) { |
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$key = $this->instance->get('memcached_adapter_namespace', function ($memc, $key, &$value) { |
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$value = bin2hex(openssl_random_pseudo_bytes(8)); |
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return true; |
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}); |
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} |
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return $key; |
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} |
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/** |
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* Given a user provided key, return a namespaced key. |
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* |
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* @return string |
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*/ |
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public function createKey($key) |
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{ |
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return $this->key() . "-" . $key; |
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} |
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} |
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This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function.
Consider the following example. The parameter
$italy
is not defined by the methodfinale(...)
.The most likely cause is that the parameter was removed, but the annotation was not.